From 3220574143147db7c9f9b00c8dc6efcbacad44cc Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 12 Aug 2014 09:41:10 +0800 Subject: [PATCH 01/71] regulator: tps65023: Remove duplicate test for I2C_FUNC_SMBUS_BYTE_DATA functionality Since commit b42261078a91 ("regmap: i2c: fallback to SMBus if the adapter does not support standard I2C"), regmap-i2c will check the I2C_FUNC_SMBUS_[BYTE|WORD]_DATA functionality based on the regmap_config setting if the adapter does not support standard I2C. So remove the I2C_FUNC_SMBUS_BYTE_DATA functionality check in the driver code. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps65023-regulator.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c index 3ef67a86115c..7380af8bd50d 100644 --- a/drivers/regulator/tps65023-regulator.c +++ b/drivers/regulator/tps65023-regulator.c @@ -211,9 +211,6 @@ static int tps_65023_probe(struct i2c_client *client, int i; int error; - if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - return -EIO; - /** * init_data points to array of regulator_init structures * coming from the board-evm file. From 5cdeb2c837ddcf5b67692816952d0f38e29c2d7b Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 16 Aug 2014 12:31:11 +0100 Subject: [PATCH 02/71] regulator: Restore L: linux-kernel@vger.kernel.org entry As with commit 981c3a4ff85 (MAINTAINERS: Restore "L: linux-kernel@vger.kernel.org" entries) restore the mailing list entry for the regulator framework in order to assist users in finding the list if they read the file instead of using get_maintainers.pl. Signed-off-by: Mark Brown --- MAINTAINERS | 1 + 1 file changed, 1 insertion(+) diff --git a/MAINTAINERS b/MAINTAINERS index aefa94841ff3..c42f647a5fe9 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9827,6 +9827,7 @@ F: drivers/scsi/vmw_pvscsi.h VOLTAGE AND CURRENT REGULATOR FRAMEWORK M: Liam Girdwood M: Mark Brown +L: linux-kernel@vger.kernel.org W: http://opensource.wolfsonmicro.com/node/15 W: http://www.slimlogic.co.uk/?p=48 T: git git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git From 005547e0828ce9064afebb1e6d56a18efd80e7a3 Mon Sep 17 00:00:00 2001 From: James Ban Date: Fri, 8 Aug 2014 14:27:04 +0900 Subject: [PATCH 03/71] regulator: da9211: support DA9213 This is a patch for supporting DA9213. Signed-off-by: James Ban Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 9 +-- drivers/regulator/da9211-regulator.c | 95 ++++++++++++++++++++++------ drivers/regulator/da9211-regulator.h | 7 +- include/linux/regulator/da9211.h | 7 +- 4 files changed, 91 insertions(+), 27 deletions(-) diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 2dc8289e5dba..1344aa83b438 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -199,13 +199,14 @@ config REGULATOR_DA9210 interface. config REGULATOR_DA9211 - tristate "Dialog Semiconductor DA9211/DA9212 regulator" + tristate "Dialog Semiconductor DA9211/DA9212/DA9213/DA9214 regulator" depends on I2C select REGMAP_I2C help - Say y here to support for the Dialog Semiconductor DA9211/DA9212. - The DA9211/DA9212 is a multi-phase synchronous step down - converter 12A DC-DC Buck controlled through an I2C + Say y here to support for the Dialog Semiconductor DA9211/DA9212 + /DA9213/DA9214. + The DA9211/DA9212/DA9213/DA9214 is a multi-phase synchronous + step down converter 12A or 16A DC-DC Buck controlled through an I2C interface. config REGULATOR_DBX500_PRCMU diff --git a/drivers/regulator/da9211-regulator.c b/drivers/regulator/da9211-regulator.c index 1482adafa1ad..ccc2e362d751 100644 --- a/drivers/regulator/da9211-regulator.c +++ b/drivers/regulator/da9211-regulator.c @@ -1,5 +1,5 @@ /* - * da9211-regulator.c - Regulator device driver for DA9211 + * da9211-regulator.c - Regulator device driver for DA9211/DA9213 * Copyright (C) 2014 Dialog Semiconductor Ltd. * * This library is free software; you can redistribute it and/or @@ -27,6 +27,10 @@ #include #include "da9211-regulator.h" +/* DEVICE IDs */ +#define DA9211_DEVICE_ID 0x22 +#define DA9213_DEVICE_ID 0x23 + #define DA9211_BUCK_MODE_SLEEP 1 #define DA9211_BUCK_MODE_SYNC 2 #define DA9211_BUCK_MODE_AUTO 3 @@ -42,6 +46,7 @@ struct da9211 { struct regulator_dev *rdev[DA9211_MAX_REGULATORS]; int num_regulator; int chip_irq; + int chip_id; }; static const struct regmap_range_cfg da9211_regmap_range[] = { @@ -52,14 +57,14 @@ static const struct regmap_range_cfg da9211_regmap_range[] = { .window_start = 0, .window_len = 256, .range_min = 0, - .range_max = 2*256, + .range_max = 5*128, }, }; static const struct regmap_config da9211_regmap_config = { .reg_bits = 8, .val_bits = 8, - .max_register = 2 * 256, + .max_register = 5 * 128, .ranges = da9211_regmap_range, .num_ranges = ARRAY_SIZE(da9211_regmap_range), }; @@ -69,11 +74,20 @@ static const struct regmap_config da9211_regmap_config = { #define DA9211_MAX_MV 1570 #define DA9211_STEP_MV 10 -/* Current limits for buck (uA) indices corresponds with register values */ +/* Current limits for DA9211 buck (uA) indices + * corresponds with register values + */ static const int da9211_current_limits[] = { 2000000, 2200000, 2400000, 2600000, 2800000, 3000000, 3200000, 3400000, 3600000, 3800000, 4000000, 4200000, 4400000, 4600000, 4800000, 5000000 }; +/* Current limits for DA9213 buck (uA) indices + * corresponds with register values + */ +static const int da9213_current_limits[] = { + 3000000, 3200000, 3400000, 3600000, 3800000, 4000000, 4200000, 4400000, + 4600000, 4800000, 5000000, 5200000, 5400000, 5600000, 5800000, 6000000 +}; static unsigned int da9211_buck_get_mode(struct regulator_dev *rdev) { @@ -129,12 +143,26 @@ static int da9211_set_current_limit(struct regulator_dev *rdev, int min, { int id = rdev_get_id(rdev); struct da9211 *chip = rdev_get_drvdata(rdev); - int i; + int i, max_size; + const int *current_limits; + + switch (chip->chip_id) { + case DA9211: + current_limits = da9211_current_limits; + max_size = ARRAY_SIZE(da9211_current_limits)-1; + break; + case DA9213: + current_limits = da9213_current_limits; + max_size = ARRAY_SIZE(da9213_current_limits)-1; + break; + default: + return -EINVAL; + } /* search for closest to maximum */ - for (i = ARRAY_SIZE(da9211_current_limits)-1; i >= 0; i--) { - if (min <= da9211_current_limits[i] && - max >= da9211_current_limits[i]) { + for (i = max_size; i >= 0; i--) { + if (min <= current_limits[i] && + max >= current_limits[i]) { return regmap_update_bits(chip->regmap, DA9211_REG_BUCK_ILIM, (0x0F << id*4), (i << id*4)); @@ -150,14 +178,28 @@ static int da9211_get_current_limit(struct regulator_dev *rdev) struct da9211 *chip = rdev_get_drvdata(rdev); unsigned int data; int ret; + const int *current_limits; + + switch (chip->chip_id) { + case DA9211: + current_limits = da9211_current_limits; + break; + case DA9213: + current_limits = da9213_current_limits; + break; + default: + return -EINVAL; + } ret = regmap_read(chip->regmap, DA9211_REG_BUCK_ILIM, &data); if (ret < 0) return ret; - /* select one of 16 values: 0000 (2000mA) to 1111 (5000mA) */ + /* select one of 16 values: 0000 (2000mA or 3000mA) + * to 1111 (5000mA or 6000mA). + */ data = (data >> id*4) & 0x0F; - return da9211_current_limits[data]; + return current_limits[data]; } static struct regulator_ops da9211_buck_ops = { @@ -264,10 +306,7 @@ static int da9211_regulator_init(struct da9211 *chip) } for (i = 0; i < chip->num_regulator; i++) { - if (chip->pdata) - config.init_data = - &(chip->pdata->init_data[i]); - + config.init_data = &(chip->pdata->init_data[i]); config.dev = chip->dev; config.driver_data = chip; config.regmap = chip->regmap; @@ -301,6 +340,7 @@ static int da9211_i2c_probe(struct i2c_client *i2c, { struct da9211 *chip; int error, ret; + unsigned int data; chip = devm_kzalloc(&i2c->dev, sizeof(struct da9211), GFP_KERNEL); @@ -308,7 +348,7 @@ static int da9211_i2c_probe(struct i2c_client *i2c, chip->regmap = devm_regmap_init_i2c(i2c, &da9211_regmap_config); if (IS_ERR(chip->regmap)) { error = PTR_ERR(chip->regmap); - dev_err(&i2c->dev, "Failed to allocate register map: %d\n", + dev_err(chip->dev, "Failed to allocate register map: %d\n", error); return error; } @@ -316,8 +356,22 @@ static int da9211_i2c_probe(struct i2c_client *i2c, i2c_set_clientdata(i2c, chip); chip->pdata = i2c->dev.platform_data; - if (!chip->pdata) { - dev_err(&i2c->dev, "No platform init data supplied\n"); + + ret = regmap_read(chip->regmap, DA9211_REG_DEVICE_ID, &data); + if (ret < 0) { + dev_err(chip->dev, "Failed to read DEVICE_ID reg: %d\n", ret); + return ret; + } + + switch (data) { + case DA9211_DEVICE_ID: + chip->chip_id = DA9211; + break; + case DA9213_DEVICE_ID: + chip->chip_id = DA9213; + break; + default: + dev_err(chip->dev, "Unsupported device id = 0x%x.\n", data); return -ENODEV; } @@ -340,13 +394,14 @@ static int da9211_i2c_probe(struct i2c_client *i2c, ret = da9211_regulator_init(chip); if (ret < 0) - dev_err(&i2c->dev, "Failed to initialize regulator: %d\n", ret); + dev_err(chip->dev, "Failed to initialize regulator: %d\n", ret); return ret; } static const struct i2c_device_id da9211_i2c_id[] = { - {"da9211", 0}, + {"da9211", DA9211}, + {"da9213", DA9213}, {}, }; @@ -364,5 +419,5 @@ static struct i2c_driver da9211_regulator_driver = { module_i2c_driver(da9211_regulator_driver); MODULE_AUTHOR("James Ban "); -MODULE_DESCRIPTION("Regulator device driver for Dialog DA9211"); +MODULE_DESCRIPTION("Regulator device driver for Dialog DA9211/DA9213"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/regulator/da9211-regulator.h b/drivers/regulator/da9211-regulator.h index 88b1769e8058..93fa9df2721c 100644 --- a/drivers/regulator/da9211-regulator.h +++ b/drivers/regulator/da9211-regulator.h @@ -1,5 +1,5 @@ /* - * da9211-regulator.h - Regulator definitions for DA9211 + * da9211-regulator.h - Regulator definitions for DA9211/DA9213 * Copyright (C) 2014 Dialog Semiconductor Ltd. * * This library is free software; you can redistribute it and/or @@ -53,12 +53,15 @@ /* BUCK Phase Selection*/ #define DA9211_REG_CONFIG_E 0x147 +/* Device ID */ +#define DA9211_REG_DEVICE_ID 0x201 + /* * Registers bits */ /* DA9211_REG_PAGE_CON (addr=0x00) */ #define DA9211_REG_PAGE_SHIFT 1 -#define DA9211_REG_PAGE_MASK 0x02 +#define DA9211_REG_PAGE_MASK 0x06 /* On I2C registers 0x00 - 0xFF */ #define DA9211_REG_PAGE0 0 /* On I2C registers 0x100 - 0x1FF */ diff --git a/include/linux/regulator/da9211.h b/include/linux/regulator/da9211.h index 0981ce0e72cc..658c3c33f4c0 100644 --- a/include/linux/regulator/da9211.h +++ b/include/linux/regulator/da9211.h @@ -1,5 +1,5 @@ /* - * da9211.h - Regulator device driver for DA9211 + * da9211.h - Regulator device driver for DA9211/DA9213 * Copyright (C) 2014 Dialog Semiconductor Ltd. * * This library is free software; you can redistribute it and/or @@ -20,6 +20,11 @@ #define DA9211_MAX_REGULATORS 2 +enum da9211_chip_id { + DA9211, + DA9213, +}; + struct da9211_pdata { /* * Number of buck From 0e4f417857083f399769491f6e7773d111debd0f Mon Sep 17 00:00:00 2001 From: Amit Daniel Kachhap Date: Tue, 15 Jul 2014 16:32:51 +0530 Subject: [PATCH 04/71] regulator: s2mpxxx: Move regulator min/step voltages in common place This is a cleanup patch and moves min/step voltages in a common samsung header file so that they can be used by other s2mpxxx PMIC drivers. Only few required macros are added currently and others can be added if needed. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Amit Daniel Kachhap Acked-by: Lee Jones Signed-off-by: Mark Brown --- drivers/regulator/s2mpa01.c | 32 +++++++++--------- drivers/regulator/s2mps11.c | 50 ++++++++++++++--------------- include/linux/mfd/samsung/core.h | 21 ++++++++++++ include/linux/mfd/samsung/s2mpa01.h | 12 ------- include/linux/mfd/samsung/s2mps11.h | 9 ------ include/linux/mfd/samsung/s2mps14.h | 10 ------ 6 files changed, 62 insertions(+), 72 deletions(-) diff --git a/drivers/regulator/s2mpa01.c b/drivers/regulator/s2mpa01.c index ee83b4876420..962c5f192f7c 100644 --- a/drivers/regulator/s2mpa01.c +++ b/drivers/regulator/s2mpa01.c @@ -241,8 +241,8 @@ static struct regulator_ops s2mpa01_buck_ops = { .ops = &s2mpa01_ldo_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPA01_LDO_MIN, \ - .uV_step = S2MPA01_LDO_STEP1, \ + .min_uV = MIN_800_MV, \ + .uV_step = STEP_50_MV, \ .n_voltages = S2MPA01_LDO_N_VOLTAGES, \ .vsel_reg = S2MPA01_REG_L1CTRL + num - 1, \ .vsel_mask = S2MPA01_LDO_VSEL_MASK, \ @@ -255,8 +255,8 @@ static struct regulator_ops s2mpa01_buck_ops = { .ops = &s2mpa01_ldo_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPA01_LDO_MIN, \ - .uV_step = S2MPA01_LDO_STEP2, \ + .min_uV = MIN_800_MV, \ + .uV_step = STEP_25_MV, \ .n_voltages = S2MPA01_LDO_N_VOLTAGES, \ .vsel_reg = S2MPA01_REG_L1CTRL + num - 1, \ .vsel_mask = S2MPA01_LDO_VSEL_MASK, \ @@ -270,8 +270,8 @@ static struct regulator_ops s2mpa01_buck_ops = { .ops = &s2mpa01_buck_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPA01_BUCK_MIN1, \ - .uV_step = S2MPA01_BUCK_STEP1, \ + .min_uV = MIN_600_MV, \ + .uV_step = STEP_6_25_MV, \ .n_voltages = S2MPA01_BUCK_N_VOLTAGES, \ .ramp_delay = S2MPA01_RAMP_DELAY, \ .vsel_reg = S2MPA01_REG_B1CTRL2 + (num - 1) * 2, \ @@ -286,8 +286,8 @@ static struct regulator_ops s2mpa01_buck_ops = { .ops = &s2mpa01_buck_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPA01_BUCK_MIN2, \ - .uV_step = S2MPA01_BUCK_STEP1, \ + .min_uV = MIN_800_MV, \ + .uV_step = STEP_6_25_MV, \ .n_voltages = S2MPA01_BUCK_N_VOLTAGES, \ .ramp_delay = S2MPA01_RAMP_DELAY, \ .vsel_reg = S2MPA01_REG_B5CTRL2, \ @@ -302,8 +302,8 @@ static struct regulator_ops s2mpa01_buck_ops = { .ops = &s2mpa01_buck_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPA01_BUCK_MIN1, \ - .uV_step = S2MPA01_BUCK_STEP1, \ + .min_uV = MIN_600_MV, \ + .uV_step = STEP_6_25_MV, \ .n_voltages = S2MPA01_BUCK_N_VOLTAGES, \ .ramp_delay = S2MPA01_RAMP_DELAY, \ .vsel_reg = S2MPA01_REG_B6CTRL2 + (num - 6) * 2, \ @@ -318,8 +318,8 @@ static struct regulator_ops s2mpa01_buck_ops = { .ops = &s2mpa01_buck_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPA01_BUCK_MIN2, \ - .uV_step = S2MPA01_BUCK_STEP2, \ + .min_uV = MIN_800_MV, \ + .uV_step = STEP_12_5_MV, \ .n_voltages = S2MPA01_BUCK_N_VOLTAGES, \ .ramp_delay = S2MPA01_RAMP_DELAY, \ .vsel_reg = S2MPA01_REG_B8CTRL2, \ @@ -334,8 +334,8 @@ static struct regulator_ops s2mpa01_buck_ops = { .ops = &s2mpa01_buck_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPA01_BUCK_MIN4, \ - .uV_step = S2MPA01_BUCK_STEP2, \ + .min_uV = MIN_1500_MV, \ + .uV_step = STEP_12_5_MV, \ .n_voltages = S2MPA01_BUCK_N_VOLTAGES, \ .ramp_delay = S2MPA01_RAMP_DELAY, \ .vsel_reg = S2MPA01_REG_B9CTRL2, \ @@ -350,8 +350,8 @@ static struct regulator_ops s2mpa01_buck_ops = { .ops = &s2mpa01_buck_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPA01_BUCK_MIN3, \ - .uV_step = S2MPA01_BUCK_STEP2, \ + .min_uV = MIN_1000_MV, \ + .uV_step = STEP_12_5_MV, \ .n_voltages = S2MPA01_BUCK_N_VOLTAGES, \ .ramp_delay = S2MPA01_RAMP_DELAY, \ .vsel_reg = S2MPA01_REG_B10CTRL2, \ diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c index b16c53a8272f..3dede776a837 100644 --- a/drivers/regulator/s2mps11.c +++ b/drivers/regulator/s2mps11.c @@ -255,14 +255,14 @@ static struct regulator_ops s2mps11_buck_ops = { .set_ramp_delay = s2mps11_set_ramp_delay, }; -#define regulator_desc_s2mps11_ldo1(num) { \ +#define regulator_desc_s2mps11_ldo1(num) { \ .name = "LDO"#num, \ .id = S2MPS11_LDO##num, \ .ops = &s2mps11_ldo_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPS11_LDO_MIN, \ - .uV_step = S2MPS11_LDO_STEP1, \ + .min_uV = MIN_800_MV, \ + .uV_step = STEP_50_MV, \ .n_voltages = S2MPS11_LDO_N_VOLTAGES, \ .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \ .vsel_mask = S2MPS11_LDO_VSEL_MASK, \ @@ -275,8 +275,8 @@ static struct regulator_ops s2mps11_buck_ops = { .ops = &s2mps11_ldo_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPS11_LDO_MIN, \ - .uV_step = S2MPS11_LDO_STEP2, \ + .min_uV = MIN_800_MV, \ + .uV_step = STEP_25_MV, \ .n_voltages = S2MPS11_LDO_N_VOLTAGES, \ .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \ .vsel_mask = S2MPS11_LDO_VSEL_MASK, \ @@ -290,8 +290,8 @@ static struct regulator_ops s2mps11_buck_ops = { .ops = &s2mps11_buck_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPS11_BUCK_MIN1, \ - .uV_step = S2MPS11_BUCK_STEP1, \ + .min_uV = MIN_600_MV, \ + .uV_step = STEP_6_25_MV, \ .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ .ramp_delay = S2MPS11_RAMP_DELAY, \ .vsel_reg = S2MPS11_REG_B1CTRL2 + (num - 1) * 2, \ @@ -306,8 +306,8 @@ static struct regulator_ops s2mps11_buck_ops = { .ops = &s2mps11_buck_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPS11_BUCK_MIN1, \ - .uV_step = S2MPS11_BUCK_STEP1, \ + .min_uV = MIN_600_MV, \ + .uV_step = STEP_6_25_MV, \ .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ .ramp_delay = S2MPS11_RAMP_DELAY, \ .vsel_reg = S2MPS11_REG_B5CTRL2, \ @@ -322,8 +322,8 @@ static struct regulator_ops s2mps11_buck_ops = { .ops = &s2mps11_buck_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPS11_BUCK_MIN1, \ - .uV_step = S2MPS11_BUCK_STEP1, \ + .min_uV = MIN_600_MV, \ + .uV_step = STEP_6_25_MV, \ .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ .ramp_delay = S2MPS11_RAMP_DELAY, \ .vsel_reg = S2MPS11_REG_B6CTRL2 + (num - 6) * 2, \ @@ -338,8 +338,8 @@ static struct regulator_ops s2mps11_buck_ops = { .ops = &s2mps11_buck_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPS11_BUCK_MIN3, \ - .uV_step = S2MPS11_BUCK_STEP3, \ + .min_uV = MIN_3000_MV, \ + .uV_step = STEP_25_MV, \ .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ .ramp_delay = S2MPS11_RAMP_DELAY, \ .vsel_reg = S2MPS11_REG_B9CTRL2, \ @@ -354,8 +354,8 @@ static struct regulator_ops s2mps11_buck_ops = { .ops = &s2mps11_buck_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPS11_BUCK_MIN2, \ - .uV_step = S2MPS11_BUCK_STEP2, \ + .min_uV = MIN_750_MV, \ + .uV_step = STEP_12_5_MV, \ .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ .ramp_delay = S2MPS11_RAMP_DELAY, \ .vsel_reg = S2MPS11_REG_B10CTRL2, \ @@ -516,8 +516,8 @@ static struct regulator_ops s2mps14_reg_ops = { .ops = &s2mps14_reg_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPS14_LDO_MIN_800MV, \ - .uV_step = S2MPS14_LDO_STEP_25MV, \ + .min_uV = MIN_800_MV, \ + .uV_step = STEP_25_MV, \ .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \ .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ @@ -530,8 +530,8 @@ static struct regulator_ops s2mps14_reg_ops = { .ops = &s2mps14_reg_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPS14_LDO_MIN_1800MV, \ - .uV_step = S2MPS14_LDO_STEP_25MV, \ + .min_uV = MIN_1800_MV, \ + .uV_step = STEP_25_MV, \ .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \ .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ @@ -544,8 +544,8 @@ static struct regulator_ops s2mps14_reg_ops = { .ops = &s2mps14_reg_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPS14_LDO_MIN_800MV, \ - .uV_step = S2MPS14_LDO_STEP_12_5MV, \ + .min_uV = MIN_800_MV, \ + .uV_step = STEP_12_5_MV, \ .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \ .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ @@ -558,8 +558,8 @@ static struct regulator_ops s2mps14_reg_ops = { .ops = &s2mps14_reg_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPS14_BUCK1235_MIN_600MV, \ - .uV_step = S2MPS14_BUCK1235_STEP_6_25MV, \ + .min_uV = MIN_600_MV, \ + .uV_step = STEP_6_25_MV, \ .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ .linear_min_sel = S2MPS14_BUCK1235_START_SEL, \ .ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \ @@ -574,8 +574,8 @@ static struct regulator_ops s2mps14_reg_ops = { .ops = &s2mps14_reg_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = S2MPS14_BUCK4_MIN_1400MV, \ - .uV_step = S2MPS14_BUCK4_STEP_12_5MV, \ + .min_uV = MIN_1400_MV, \ + .uV_step = STEP_12_5_MV, \ .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ .linear_min_sel = S2MPS14_BUCK4_START_SEL, \ .ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \ diff --git a/include/linux/mfd/samsung/core.h b/include/linux/mfd/samsung/core.h index b5f73de81aad..1825edacbda7 100644 --- a/include/linux/mfd/samsung/core.h +++ b/include/linux/mfd/samsung/core.h @@ -14,6 +14,27 @@ #ifndef __LINUX_MFD_SEC_CORE_H #define __LINUX_MFD_SEC_CORE_H +/* Macros to represent minimum voltages for LDO/BUCK */ +#define MIN_3000_MV 3000000 +#define MIN_2500_MV 2500000 +#define MIN_2000_MV 2000000 +#define MIN_1800_MV 1800000 +#define MIN_1500_MV 1500000 +#define MIN_1400_MV 1400000 +#define MIN_1000_MV 1000000 + +#define MIN_900_MV 900000 +#define MIN_850_MV 850000 +#define MIN_800_MV 800000 +#define MIN_750_MV 750000 +#define MIN_600_MV 600000 + +/* Macros to represent steps for LDO/BUCK */ +#define STEP_50_MV 50000 +#define STEP_25_MV 25000 +#define STEP_12_5_MV 12500 +#define STEP_6_25_MV 6250 + enum sec_device_type { S5M8751X, S5M8763X, diff --git a/include/linux/mfd/samsung/s2mpa01.h b/include/linux/mfd/samsung/s2mpa01.h index fbc63bc0d6a2..2766108bca2f 100644 --- a/include/linux/mfd/samsung/s2mpa01.h +++ b/include/linux/mfd/samsung/s2mpa01.h @@ -155,18 +155,6 @@ enum s2mpa01_regulators { S2MPA01_REGULATOR_MAX, }; -#define S2MPA01_BUCK_MIN1 600000 -#define S2MPA01_BUCK_MIN2 800000 -#define S2MPA01_BUCK_MIN3 1000000 -#define S2MPA01_BUCK_MIN4 1500000 -#define S2MPA01_LDO_MIN 800000 - -#define S2MPA01_BUCK_STEP1 6250 -#define S2MPA01_BUCK_STEP2 12500 - -#define S2MPA01_LDO_STEP1 50000 -#define S2MPA01_LDO_STEP2 25000 - #define S2MPA01_LDO_VSEL_MASK 0x3F #define S2MPA01_BUCK_VSEL_MASK 0xFF #define S2MPA01_ENABLE_MASK (0x03 << S2MPA01_ENABLE_SHIFT) diff --git a/include/linux/mfd/samsung/s2mps11.h b/include/linux/mfd/samsung/s2mps11.h index b3ddf98dec37..7981a9d77d3f 100644 --- a/include/linux/mfd/samsung/s2mps11.h +++ b/include/linux/mfd/samsung/s2mps11.h @@ -171,15 +171,6 @@ enum s2mps11_regulators { S2MPS11_REGULATOR_MAX, }; -#define S2MPS11_BUCK_MIN1 600000 -#define S2MPS11_BUCK_MIN2 750000 -#define S2MPS11_BUCK_MIN3 3000000 -#define S2MPS11_LDO_MIN 800000 -#define S2MPS11_BUCK_STEP1 6250 -#define S2MPS11_BUCK_STEP2 12500 -#define S2MPS11_BUCK_STEP3 25000 -#define S2MPS11_LDO_STEP1 50000 -#define S2MPS11_LDO_STEP2 25000 #define S2MPS11_LDO_VSEL_MASK 0x3F #define S2MPS11_BUCK_VSEL_MASK 0xFF #define S2MPS11_ENABLE_MASK (0x03 << S2MPS11_ENABLE_SHIFT) diff --git a/include/linux/mfd/samsung/s2mps14.h b/include/linux/mfd/samsung/s2mps14.h index 900cd7a04314..c92f4782afb5 100644 --- a/include/linux/mfd/samsung/s2mps14.h +++ b/include/linux/mfd/samsung/s2mps14.h @@ -123,10 +123,6 @@ enum s2mps14_regulators { }; /* Regulator constraints for BUCKx */ -#define S2MPS14_BUCK1235_MIN_600MV 600000 -#define S2MPS14_BUCK4_MIN_1400MV 1400000 -#define S2MPS14_BUCK1235_STEP_6_25MV 6250 -#define S2MPS14_BUCK4_STEP_12_5MV 12500 #define S2MPS14_BUCK1235_START_SEL 0x20 #define S2MPS14_BUCK4_START_SEL 0x40 /* @@ -136,12 +132,6 @@ enum s2mps14_regulators { */ #define S2MPS14_BUCK_RAMP_DELAY 12500 -/* Regulator constraints for different types of LDOx */ -#define S2MPS14_LDO_MIN_800MV 800000 -#define S2MPS14_LDO_MIN_1800MV 1800000 -#define S2MPS14_LDO_STEP_12_5MV 12500 -#define S2MPS14_LDO_STEP_25MV 25000 - #define S2MPS14_LDO_VSEL_MASK 0x3F #define S2MPS14_BUCK_VSEL_MASK 0xFF #define S2MPS14_ENABLE_MASK (0x03 << S2MPS14_ENABLE_SHIFT) From d264fd4541753bf3fe2613805b3cab95b54a3f32 Mon Sep 17 00:00:00 2001 From: Amit Daniel Kachhap Date: Tue, 15 Jul 2014 16:32:52 +0530 Subject: [PATCH 05/71] regulator: s2mpa01: Optimize the regulator description macro This patch makes the regulator description macro take minimum and steps voltage as parameter. In this way many repeated macros can be removed. Now these macros are repeated only if the the LDO/BUCK ctrl registers have non-linear positions. The good thing is these ctrl registers are mostly linear so they are not passed as parameters. This patch reduces the code size and also allow easy addition of more s2mpxxx PMIC drivers which differs a lot in minimum/step voltages. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Amit Daniel Kachhap Signed-off-by: Mark Brown --- drivers/regulator/s2mpa01.c | 134 ++++++++++-------------------------- 1 file changed, 36 insertions(+), 98 deletions(-) diff --git a/drivers/regulator/s2mpa01.c b/drivers/regulator/s2mpa01.c index 962c5f192f7c..4acefa6b462e 100644 --- a/drivers/regulator/s2mpa01.c +++ b/drivers/regulator/s2mpa01.c @@ -235,28 +235,14 @@ static struct regulator_ops s2mpa01_buck_ops = { .set_ramp_delay = s2mpa01_set_ramp_delay, }; -#define regulator_desc_ldo1(num) { \ +#define regulator_desc_ldo(num, step) { \ .name = "LDO"#num, \ .id = S2MPA01_LDO##num, \ .ops = &s2mpa01_ldo_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ .min_uV = MIN_800_MV, \ - .uV_step = STEP_50_MV, \ - .n_voltages = S2MPA01_LDO_N_VOLTAGES, \ - .vsel_reg = S2MPA01_REG_L1CTRL + num - 1, \ - .vsel_mask = S2MPA01_LDO_VSEL_MASK, \ - .enable_reg = S2MPA01_REG_L1CTRL + num - 1, \ - .enable_mask = S2MPA01_ENABLE_MASK \ -} -#define regulator_desc_ldo2(num) { \ - .name = "LDO"#num, \ - .id = S2MPA01_LDO##num, \ - .ops = &s2mpa01_ldo_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = MIN_800_MV, \ - .uV_step = STEP_25_MV, \ + .uV_step = step, \ .n_voltages = S2MPA01_LDO_N_VOLTAGES, \ .vsel_reg = S2MPA01_REG_L1CTRL + num - 1, \ .vsel_mask = S2MPA01_LDO_VSEL_MASK, \ @@ -296,14 +282,14 @@ static struct regulator_ops s2mpa01_buck_ops = { .enable_mask = S2MPA01_ENABLE_MASK \ } -#define regulator_desc_buck6_7(num) { \ +#define regulator_desc_buck6_10(num, min, step) { \ .name = "BUCK"#num, \ .id = S2MPA01_BUCK##num, \ .ops = &s2mpa01_buck_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = MIN_600_MV, \ - .uV_step = STEP_6_25_MV, \ + .min_uV = min, \ + .uV_step = step, \ .n_voltages = S2MPA01_BUCK_N_VOLTAGES, \ .ramp_delay = S2MPA01_RAMP_DELAY, \ .vsel_reg = S2MPA01_REG_B6CTRL2 + (num - 6) * 2, \ @@ -312,91 +298,43 @@ static struct regulator_ops s2mpa01_buck_ops = { .enable_mask = S2MPA01_ENABLE_MASK \ } -#define regulator_desc_buck8 { \ - .name = "BUCK8", \ - .id = S2MPA01_BUCK8, \ - .ops = &s2mpa01_buck_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = MIN_800_MV, \ - .uV_step = STEP_12_5_MV, \ - .n_voltages = S2MPA01_BUCK_N_VOLTAGES, \ - .ramp_delay = S2MPA01_RAMP_DELAY, \ - .vsel_reg = S2MPA01_REG_B8CTRL2, \ - .vsel_mask = S2MPA01_BUCK_VSEL_MASK, \ - .enable_reg = S2MPA01_REG_B8CTRL1, \ - .enable_mask = S2MPA01_ENABLE_MASK \ -} - -#define regulator_desc_buck9 { \ - .name = "BUCK9", \ - .id = S2MPA01_BUCK9, \ - .ops = &s2mpa01_buck_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = MIN_1500_MV, \ - .uV_step = STEP_12_5_MV, \ - .n_voltages = S2MPA01_BUCK_N_VOLTAGES, \ - .ramp_delay = S2MPA01_RAMP_DELAY, \ - .vsel_reg = S2MPA01_REG_B9CTRL2, \ - .vsel_mask = S2MPA01_BUCK_VSEL_MASK, \ - .enable_reg = S2MPA01_REG_B9CTRL1, \ - .enable_mask = S2MPA01_ENABLE_MASK \ -} - -#define regulator_desc_buck10 { \ - .name = "BUCK10", \ - .id = S2MPA01_BUCK10, \ - .ops = &s2mpa01_buck_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = MIN_1000_MV, \ - .uV_step = STEP_12_5_MV, \ - .n_voltages = S2MPA01_BUCK_N_VOLTAGES, \ - .ramp_delay = S2MPA01_RAMP_DELAY, \ - .vsel_reg = S2MPA01_REG_B10CTRL2, \ - .vsel_mask = S2MPA01_BUCK_VSEL_MASK, \ - .enable_reg = S2MPA01_REG_B10CTRL1, \ - .enable_mask = S2MPA01_ENABLE_MASK \ -} - static struct regulator_desc regulators[] = { - regulator_desc_ldo2(1), - regulator_desc_ldo1(2), - regulator_desc_ldo1(3), - regulator_desc_ldo1(4), - regulator_desc_ldo1(5), - regulator_desc_ldo2(6), - regulator_desc_ldo1(7), - regulator_desc_ldo1(8), - regulator_desc_ldo1(9), - regulator_desc_ldo1(10), - regulator_desc_ldo2(11), - regulator_desc_ldo1(12), - regulator_desc_ldo1(13), - regulator_desc_ldo1(14), - regulator_desc_ldo1(15), - regulator_desc_ldo1(16), - regulator_desc_ldo1(17), - regulator_desc_ldo1(18), - regulator_desc_ldo1(19), - regulator_desc_ldo1(20), - regulator_desc_ldo1(21), - regulator_desc_ldo2(22), - regulator_desc_ldo2(23), - regulator_desc_ldo1(24), - regulator_desc_ldo1(25), - regulator_desc_ldo1(26), + regulator_desc_ldo(1, STEP_25_MV), + regulator_desc_ldo(2, STEP_50_MV), + regulator_desc_ldo(3, STEP_50_MV), + regulator_desc_ldo(4, STEP_50_MV), + regulator_desc_ldo(5, STEP_50_MV), + regulator_desc_ldo(6, STEP_25_MV), + regulator_desc_ldo(7, STEP_50_MV), + regulator_desc_ldo(8, STEP_50_MV), + regulator_desc_ldo(9, STEP_50_MV), + regulator_desc_ldo(10, STEP_50_MV), + regulator_desc_ldo(11, STEP_25_MV), + regulator_desc_ldo(12, STEP_50_MV), + regulator_desc_ldo(13, STEP_50_MV), + regulator_desc_ldo(14, STEP_50_MV), + regulator_desc_ldo(15, STEP_50_MV), + regulator_desc_ldo(16, STEP_50_MV), + regulator_desc_ldo(17, STEP_50_MV), + regulator_desc_ldo(18, STEP_50_MV), + regulator_desc_ldo(19, STEP_50_MV), + regulator_desc_ldo(20, STEP_50_MV), + regulator_desc_ldo(21, STEP_50_MV), + regulator_desc_ldo(22, STEP_25_MV), + regulator_desc_ldo(23, STEP_25_MV), + regulator_desc_ldo(24, STEP_50_MV), + regulator_desc_ldo(25, STEP_50_MV), + regulator_desc_ldo(26, STEP_50_MV), regulator_desc_buck1_4(1), regulator_desc_buck1_4(2), regulator_desc_buck1_4(3), regulator_desc_buck1_4(4), regulator_desc_buck5, - regulator_desc_buck6_7(6), - regulator_desc_buck6_7(7), - regulator_desc_buck8, - regulator_desc_buck9, - regulator_desc_buck10, + regulator_desc_buck6_10(6, MIN_600_MV, STEP_6_25_MV), + regulator_desc_buck6_10(7, MIN_600_MV, STEP_6_25_MV), + regulator_desc_buck6_10(8, MIN_800_MV, STEP_12_5_MV), + regulator_desc_buck6_10(9, MIN_1500_MV, STEP_12_5_MV), + regulator_desc_buck6_10(10, MIN_1000_MV, STEP_12_5_MV), }; static int s2mpa01_pmic_probe(struct platform_device *pdev) From 5a867cf288934c26f3034ace189bda25700c68fa Mon Sep 17 00:00:00 2001 From: Amit Daniel Kachhap Date: Tue, 15 Jul 2014 16:32:53 +0530 Subject: [PATCH 06/71] regulator: s2mps11: Optimize the regulator description macro This patch makes the regulator description macro take minimum and steps voltage as parameter. In this way many repeated macros can be removed. Now these macros are repeated only if the the LDO/BUCK ctrl registers have non-linear positions. The good thing is these ctrl registers are mostly linear so they are not passed as parameters. This patch reduces the code size and also allow easy addition of more s2mpxxx PMIC drivers which differs a lot in minimum/step voltages. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Amit Daniel Kachhap Signed-off-by: Mark Brown --- drivers/regulator/s2mps11.c | 259 ++++++++++++------------------------ 1 file changed, 85 insertions(+), 174 deletions(-) diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c index 3dede776a837..adab82d5279f 100644 --- a/drivers/regulator/s2mps11.c +++ b/drivers/regulator/s2mps11.c @@ -255,28 +255,14 @@ static struct regulator_ops s2mps11_buck_ops = { .set_ramp_delay = s2mps11_set_ramp_delay, }; -#define regulator_desc_s2mps11_ldo1(num) { \ +#define regulator_desc_s2mps11_ldo(num, step) { \ .name = "LDO"#num, \ .id = S2MPS11_LDO##num, \ .ops = &s2mps11_ldo_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ .min_uV = MIN_800_MV, \ - .uV_step = STEP_50_MV, \ - .n_voltages = S2MPS11_LDO_N_VOLTAGES, \ - .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \ - .vsel_mask = S2MPS11_LDO_VSEL_MASK, \ - .enable_reg = S2MPS11_REG_L1CTRL + num - 1, \ - .enable_mask = S2MPS11_ENABLE_MASK \ -} -#define regulator_desc_s2mps11_ldo2(num) { \ - .name = "LDO"#num, \ - .id = S2MPS11_LDO##num, \ - .ops = &s2mps11_ldo_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = MIN_800_MV, \ - .uV_step = STEP_25_MV, \ + .uV_step = step, \ .n_voltages = S2MPS11_LDO_N_VOLTAGES, \ .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \ .vsel_mask = S2MPS11_LDO_VSEL_MASK, \ @@ -316,14 +302,14 @@ static struct regulator_ops s2mps11_buck_ops = { .enable_mask = S2MPS11_ENABLE_MASK \ } -#define regulator_desc_s2mps11_buck6_8(num) { \ +#define regulator_desc_s2mps11_buck6_10(num, min, step) { \ .name = "BUCK"#num, \ .id = S2MPS11_BUCK##num, \ .ops = &s2mps11_buck_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = MIN_600_MV, \ - .uV_step = STEP_6_25_MV, \ + .min_uV = min, \ + .uV_step = step, \ .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ .ramp_delay = S2MPS11_RAMP_DELAY, \ .vsel_reg = S2MPS11_REG_B6CTRL2 + (num - 6) * 2, \ @@ -332,87 +318,55 @@ static struct regulator_ops s2mps11_buck_ops = { .enable_mask = S2MPS11_ENABLE_MASK \ } -#define regulator_desc_s2mps11_buck9 { \ - .name = "BUCK9", \ - .id = S2MPS11_BUCK9, \ - .ops = &s2mps11_buck_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = MIN_3000_MV, \ - .uV_step = STEP_25_MV, \ - .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ - .ramp_delay = S2MPS11_RAMP_DELAY, \ - .vsel_reg = S2MPS11_REG_B9CTRL2, \ - .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ - .enable_reg = S2MPS11_REG_B9CTRL1, \ - .enable_mask = S2MPS11_ENABLE_MASK \ -} - -#define regulator_desc_s2mps11_buck10 { \ - .name = "BUCK10", \ - .id = S2MPS11_BUCK10, \ - .ops = &s2mps11_buck_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = MIN_750_MV, \ - .uV_step = STEP_12_5_MV, \ - .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \ - .ramp_delay = S2MPS11_RAMP_DELAY, \ - .vsel_reg = S2MPS11_REG_B10CTRL2, \ - .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \ - .enable_reg = S2MPS11_REG_B10CTRL1, \ - .enable_mask = S2MPS11_ENABLE_MASK \ -} - static const struct regulator_desc s2mps11_regulators[] = { - regulator_desc_s2mps11_ldo2(1), - regulator_desc_s2mps11_ldo1(2), - regulator_desc_s2mps11_ldo1(3), - regulator_desc_s2mps11_ldo1(4), - regulator_desc_s2mps11_ldo1(5), - regulator_desc_s2mps11_ldo2(6), - regulator_desc_s2mps11_ldo1(7), - regulator_desc_s2mps11_ldo1(8), - regulator_desc_s2mps11_ldo1(9), - regulator_desc_s2mps11_ldo1(10), - regulator_desc_s2mps11_ldo2(11), - regulator_desc_s2mps11_ldo1(12), - regulator_desc_s2mps11_ldo1(13), - regulator_desc_s2mps11_ldo1(14), - regulator_desc_s2mps11_ldo1(15), - regulator_desc_s2mps11_ldo1(16), - regulator_desc_s2mps11_ldo1(17), - regulator_desc_s2mps11_ldo1(18), - regulator_desc_s2mps11_ldo1(19), - regulator_desc_s2mps11_ldo1(20), - regulator_desc_s2mps11_ldo1(21), - regulator_desc_s2mps11_ldo2(22), - regulator_desc_s2mps11_ldo2(23), - regulator_desc_s2mps11_ldo1(24), - regulator_desc_s2mps11_ldo1(25), - regulator_desc_s2mps11_ldo1(26), - regulator_desc_s2mps11_ldo2(27), - regulator_desc_s2mps11_ldo1(28), - regulator_desc_s2mps11_ldo1(29), - regulator_desc_s2mps11_ldo1(30), - regulator_desc_s2mps11_ldo1(31), - regulator_desc_s2mps11_ldo1(32), - regulator_desc_s2mps11_ldo1(33), - regulator_desc_s2mps11_ldo1(34), - regulator_desc_s2mps11_ldo1(35), - regulator_desc_s2mps11_ldo1(36), - regulator_desc_s2mps11_ldo1(37), - regulator_desc_s2mps11_ldo1(38), + regulator_desc_s2mps11_ldo(1, STEP_25_MV), + regulator_desc_s2mps11_ldo(2, STEP_50_MV), + regulator_desc_s2mps11_ldo(3, STEP_50_MV), + regulator_desc_s2mps11_ldo(4, STEP_50_MV), + regulator_desc_s2mps11_ldo(5, STEP_50_MV), + regulator_desc_s2mps11_ldo(6, STEP_25_MV), + regulator_desc_s2mps11_ldo(7, STEP_50_MV), + regulator_desc_s2mps11_ldo(8, STEP_50_MV), + regulator_desc_s2mps11_ldo(9, STEP_50_MV), + regulator_desc_s2mps11_ldo(10, STEP_50_MV), + regulator_desc_s2mps11_ldo(11, STEP_25_MV), + regulator_desc_s2mps11_ldo(12, STEP_50_MV), + regulator_desc_s2mps11_ldo(13, STEP_50_MV), + regulator_desc_s2mps11_ldo(14, STEP_50_MV), + regulator_desc_s2mps11_ldo(15, STEP_50_MV), + regulator_desc_s2mps11_ldo(16, STEP_50_MV), + regulator_desc_s2mps11_ldo(17, STEP_50_MV), + regulator_desc_s2mps11_ldo(18, STEP_50_MV), + regulator_desc_s2mps11_ldo(19, STEP_50_MV), + regulator_desc_s2mps11_ldo(20, STEP_50_MV), + regulator_desc_s2mps11_ldo(21, STEP_50_MV), + regulator_desc_s2mps11_ldo(22, STEP_25_MV), + regulator_desc_s2mps11_ldo(23, STEP_25_MV), + regulator_desc_s2mps11_ldo(24, STEP_50_MV), + regulator_desc_s2mps11_ldo(25, STEP_50_MV), + regulator_desc_s2mps11_ldo(26, STEP_50_MV), + regulator_desc_s2mps11_ldo(27, STEP_25_MV), + regulator_desc_s2mps11_ldo(28, STEP_50_MV), + regulator_desc_s2mps11_ldo(29, STEP_50_MV), + regulator_desc_s2mps11_ldo(30, STEP_50_MV), + regulator_desc_s2mps11_ldo(31, STEP_50_MV), + regulator_desc_s2mps11_ldo(32, STEP_50_MV), + regulator_desc_s2mps11_ldo(33, STEP_50_MV), + regulator_desc_s2mps11_ldo(34, STEP_50_MV), + regulator_desc_s2mps11_ldo(35, STEP_50_MV), + regulator_desc_s2mps11_ldo(36, STEP_50_MV), + regulator_desc_s2mps11_ldo(37, STEP_50_MV), + regulator_desc_s2mps11_ldo(38, STEP_50_MV), regulator_desc_s2mps11_buck1_4(1), regulator_desc_s2mps11_buck1_4(2), regulator_desc_s2mps11_buck1_4(3), regulator_desc_s2mps11_buck1_4(4), regulator_desc_s2mps11_buck5, - regulator_desc_s2mps11_buck6_8(6), - regulator_desc_s2mps11_buck6_8(7), - regulator_desc_s2mps11_buck6_8(8), - regulator_desc_s2mps11_buck9, - regulator_desc_s2mps11_buck10, + regulator_desc_s2mps11_buck6_10(6, MIN_600_MV, STEP_6_25_MV), + regulator_desc_s2mps11_buck6_10(7, MIN_600_MV, STEP_6_25_MV), + regulator_desc_s2mps11_buck6_10(8, MIN_600_MV, STEP_6_25_MV), + regulator_desc_s2mps11_buck6_10(9, MIN_3000_MV, STEP_25_MV), + regulator_desc_s2mps11_buck6_10(10, MIN_750_MV, STEP_12_5_MV), }; static int s2mps14_regulator_enable(struct regulator_dev *rdev) @@ -510,56 +464,29 @@ static struct regulator_ops s2mps14_reg_ops = { .set_suspend_disable = s2mps14_regulator_set_suspend_disable, }; -#define regulator_desc_s2mps14_ldo1(num) { \ +#define regulator_desc_s2mps14_ldo(num, min, step) { \ .name = "LDO"#num, \ .id = S2MPS14_LDO##num, \ .ops = &s2mps14_reg_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = MIN_800_MV, \ - .uV_step = STEP_25_MV, \ + .min_uV = min, \ + .uV_step = step, \ .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \ .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ .enable_reg = S2MPS14_REG_L1CTRL + num - 1, \ .enable_mask = S2MPS14_ENABLE_MASK \ } -#define regulator_desc_s2mps14_ldo2(num) { \ - .name = "LDO"#num, \ - .id = S2MPS14_LDO##num, \ - .ops = &s2mps14_reg_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = MIN_1800_MV, \ - .uV_step = STEP_25_MV, \ - .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ - .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \ - .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ - .enable_reg = S2MPS14_REG_L1CTRL + num - 1, \ - .enable_mask = S2MPS14_ENABLE_MASK \ -} -#define regulator_desc_s2mps14_ldo3(num) { \ - .name = "LDO"#num, \ - .id = S2MPS14_LDO##num, \ - .ops = &s2mps14_reg_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = MIN_800_MV, \ - .uV_step = STEP_12_5_MV, \ - .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ - .vsel_reg = S2MPS14_REG_L1CTRL + num - 1, \ - .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ - .enable_reg = S2MPS14_REG_L1CTRL + num - 1, \ - .enable_mask = S2MPS14_ENABLE_MASK \ -} -#define regulator_desc_s2mps14_buck1235(num) { \ + +#define regulator_desc_s2mps14_buck(num, min, step) { \ .name = "BUCK"#num, \ .id = S2MPS14_BUCK##num, \ .ops = &s2mps14_reg_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ - .min_uV = MIN_600_MV, \ - .uV_step = STEP_6_25_MV, \ + .min_uV = min, \ + .uV_step = step, \ .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ .linear_min_sel = S2MPS14_BUCK1235_START_SEL, \ .ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \ @@ -568,54 +495,38 @@ static struct regulator_ops s2mps14_reg_ops = { .enable_reg = S2MPS14_REG_B1CTRL1 + (num - 1) * 2, \ .enable_mask = S2MPS14_ENABLE_MASK \ } -#define regulator_desc_s2mps14_buck4(num) { \ - .name = "BUCK"#num, \ - .id = S2MPS14_BUCK##num, \ - .ops = &s2mps14_reg_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = MIN_1400_MV, \ - .uV_step = STEP_12_5_MV, \ - .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ - .linear_min_sel = S2MPS14_BUCK4_START_SEL, \ - .ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \ - .vsel_reg = S2MPS14_REG_B1CTRL2 + (num - 1) * 2, \ - .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ - .enable_reg = S2MPS14_REG_B1CTRL1 + (num - 1) * 2, \ - .enable_mask = S2MPS14_ENABLE_MASK \ -} static const struct regulator_desc s2mps14_regulators[] = { - regulator_desc_s2mps14_ldo3(1), - regulator_desc_s2mps14_ldo3(2), - regulator_desc_s2mps14_ldo1(3), - regulator_desc_s2mps14_ldo1(4), - regulator_desc_s2mps14_ldo3(5), - regulator_desc_s2mps14_ldo3(6), - regulator_desc_s2mps14_ldo1(7), - regulator_desc_s2mps14_ldo2(8), - regulator_desc_s2mps14_ldo3(9), - regulator_desc_s2mps14_ldo3(10), - regulator_desc_s2mps14_ldo1(11), - regulator_desc_s2mps14_ldo2(12), - regulator_desc_s2mps14_ldo2(13), - regulator_desc_s2mps14_ldo2(14), - regulator_desc_s2mps14_ldo2(15), - regulator_desc_s2mps14_ldo2(16), - regulator_desc_s2mps14_ldo2(17), - regulator_desc_s2mps14_ldo2(18), - regulator_desc_s2mps14_ldo1(19), - regulator_desc_s2mps14_ldo1(20), - regulator_desc_s2mps14_ldo1(21), - regulator_desc_s2mps14_ldo3(22), - regulator_desc_s2mps14_ldo1(23), - regulator_desc_s2mps14_ldo2(24), - regulator_desc_s2mps14_ldo2(25), - regulator_desc_s2mps14_buck1235(1), - regulator_desc_s2mps14_buck1235(2), - regulator_desc_s2mps14_buck1235(3), - regulator_desc_s2mps14_buck4(4), - regulator_desc_s2mps14_buck1235(5), + regulator_desc_s2mps14_ldo(1, MIN_800_MV, STEP_12_5_MV), + regulator_desc_s2mps14_ldo(2, MIN_800_MV, STEP_12_5_MV), + regulator_desc_s2mps14_ldo(3, MIN_800_MV, STEP_25_MV), + regulator_desc_s2mps14_ldo(4, MIN_800_MV, STEP_25_MV), + regulator_desc_s2mps14_ldo(5, MIN_800_MV, STEP_12_5_MV), + regulator_desc_s2mps14_ldo(6, MIN_800_MV, STEP_12_5_MV), + regulator_desc_s2mps14_ldo(7, MIN_800_MV, STEP_25_MV), + regulator_desc_s2mps14_ldo(8, MIN_1800_MV, STEP_25_MV), + regulator_desc_s2mps14_ldo(9, MIN_800_MV, STEP_12_5_MV), + regulator_desc_s2mps14_ldo(10, MIN_800_MV, STEP_12_5_MV), + regulator_desc_s2mps14_ldo(11, MIN_800_MV, STEP_25_MV), + regulator_desc_s2mps14_ldo(12, MIN_1800_MV, STEP_25_MV), + regulator_desc_s2mps14_ldo(13, MIN_1800_MV, STEP_25_MV), + regulator_desc_s2mps14_ldo(14, MIN_1800_MV, STEP_25_MV), + regulator_desc_s2mps14_ldo(15, MIN_1800_MV, STEP_25_MV), + regulator_desc_s2mps14_ldo(16, MIN_1800_MV, STEP_25_MV), + regulator_desc_s2mps14_ldo(17, MIN_1800_MV, STEP_25_MV), + regulator_desc_s2mps14_ldo(18, MIN_1800_MV, STEP_25_MV), + regulator_desc_s2mps14_ldo(19, MIN_800_MV, STEP_25_MV), + regulator_desc_s2mps14_ldo(20, MIN_800_MV, STEP_25_MV), + regulator_desc_s2mps14_ldo(21, MIN_800_MV, STEP_25_MV), + regulator_desc_s2mps14_ldo(22, MIN_800_MV, STEP_12_5_MV), + regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV), + regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV), + regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV), + regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV), + regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV), + regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV), + regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV), + regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV), }; static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11, From 9839d627c2a2c74facde9a9ee949f2ba0a1363b1 Mon Sep 17 00:00:00 2001 From: Gyungoh Yoo Date: Fri, 8 Aug 2014 18:10:22 +0900 Subject: [PATCH 07/71] regulator: sky81452: Adding Skyworks SKY81452 regulator driver Signed-off-by: Gyungoh Yoo Signed-off-by: Mark Brown --- .../bindings/regulator/sky81452-regulator.txt | 16 +++ drivers/regulator/Kconfig | 11 ++ drivers/regulator/Makefile | 1 + drivers/regulator/sky81452-regulator.c | 130 ++++++++++++++++++ 4 files changed, 158 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/sky81452-regulator.txt create mode 100644 drivers/regulator/sky81452-regulator.c diff --git a/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt new file mode 100644 index 000000000000..882455e9b36d --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/sky81452-regulator.txt @@ -0,0 +1,16 @@ +SKY81452 voltage regulator + +Required properties: +- any required generic properties defined in regulator.txt + +Optional properties: +- any available generic properties defined in regulator.txt + +Example: + + regulator { + /* generic regulator properties */ + regulator-name = "touch_en"; + regulator-min-microvolt = <4500000>; + regulator-max-microvolt = <8000000>; + }; diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 2dc8289e5dba..f6bf208f0fca 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -483,6 +483,17 @@ config REGULATOR_S5M8767 via I2C bus. S5M8767A have 9 Bucks and 28 LDOs output and supports DVS mode with 8bits of output voltage control. +config REGULATOR_SKY81452 + tristate "Skyworks Solutions SKY81452 voltage regulator" + depends on SKY81452 + help + This driver supports Skyworks SKY81452 voltage output regulator + via I2C bus. SKY81452 has one voltage linear regulator can be + programmed from 4.5V to 20V. + + This driver can also be built as a module. If so, the module + will be called sky81452-regulator. + config REGULATOR_ST_PWM tristate "STMicroelectronics PWM voltage regulator" depends on ARCH_STI diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index aa4a6aa7b558..d8206ec63d15 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -65,6 +65,7 @@ obj-$(CONFIG_REGULATOR_RC5T583) += rc5t583-regulator.o obj-$(CONFIG_REGULATOR_S2MPA01) += s2mpa01.o obj-$(CONFIG_REGULATOR_S2MPS11) += s2mps11.o obj-$(CONFIG_REGULATOR_S5M8767) += s5m8767.o +obj-$(CONFIG_REGULATOR_SKY81452) += sky81452-regulator.o obj-$(CONFIG_REGULATOR_ST_PWM) += st-pwm.o obj-$(CONFIG_REGULATOR_STW481X_VMMC) += stw481x-vmmc.o obj-$(CONFIG_REGULATOR_TI_ABB) += ti-abb-regulator.o diff --git a/drivers/regulator/sky81452-regulator.c b/drivers/regulator/sky81452-regulator.c new file mode 100644 index 000000000000..97aff0ccd65f --- /dev/null +++ b/drivers/regulator/sky81452-regulator.c @@ -0,0 +1,130 @@ +/* + * sky81452-regulator.c SKY81452 regulator driver + * + * Copyright 2014 Skyworks Solutions Inc. + * Author : Gyungoh Yoo + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +/* registers */ +#define SKY81452_REG1 0x01 +#define SKY81452_REG3 0x03 + +/* bit mask */ +#define SKY81452_LEN 0x40 +#define SKY81452_LOUT 0x1F + +static struct regulator_ops sky81452_reg_ops = { + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +static const struct regulator_linear_range sky81452_reg_ranges[] = { + REGULATOR_LINEAR_RANGE(4500000, 0, 14, 250000), + REGULATOR_LINEAR_RANGE(9000000, 15, 31, 1000000), +}; + +static const struct regulator_desc sky81452_reg = { + .name = "LOUT", + .ops = &sky81452_reg_ops, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .n_voltages = SKY81452_LOUT + 1, + .linear_ranges = sky81452_reg_ranges, + .n_linear_ranges = ARRAY_SIZE(sky81452_reg_ranges), + .vsel_reg = SKY81452_REG3, + .vsel_mask = SKY81452_LOUT, + .enable_reg = SKY81452_REG1, + .enable_mask = SKY81452_LEN, +}; + +#ifdef CONFIG_OF +static struct regulator_init_data *sky81452_reg_parse_dt(struct device *dev) +{ + struct regulator_init_data *init_data; + struct device_node *np; + + np = of_get_child_by_name(dev->parent->of_node, "regulator"); + if (unlikely(!np)) { + dev_err(dev, "regulator node not found"); + return NULL; + } + + init_data = of_get_regulator_init_data(dev, np); + + of_node_put(np); + return init_data; +} +#else +static struct regulator_init_data *sky81452_reg_parse_dt(struct device *dev) +{ + return ERR_PTR(-EINVAL); +} +#endif + +static int sky81452_reg_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + const struct regulator_init_data *init_data = dev_get_platdata(dev); + struct regulator_config config = { }; + struct regulator_dev *rdev; + + if (!init_data) { + init_data = sky81452_reg_parse_dt(dev); + if (IS_ERR(init_data)) + return PTR_ERR(init_data); + } + + config.dev = dev; + config.init_data = init_data; + config.of_node = dev->of_node; + config.regmap = dev_get_drvdata(dev->parent); + + rdev = devm_regulator_register(dev, &sky81452_reg, &config); + if (IS_ERR(rdev)) + return PTR_ERR(rdev); + + platform_set_drvdata(pdev, rdev); + + return 0; +} + +static struct platform_driver sky81452_reg_driver = { + .driver = { + .name = "sky81452-regulator", + }, + .probe = sky81452_reg_probe, +}; + +module_platform_driver(sky81452_reg_driver); + +MODULE_DESCRIPTION("Skyworks SKY81452 Regulator driver"); +MODULE_AUTHOR("Gyungoh Yoo "); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.0"); From 23b1134838efdb5872be7b75e86fae41e60ba629 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 18 Feb 2014 21:11:48 +0800 Subject: [PATCH 08/71] regulator: tps65910: Allow missing init_data for diagnostics The regulator core supports this to allow the configuration to be inspected at runtime even if no software management is enabled. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps65910-regulator.c | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c index fa7db8847578..20645070b779 100644 --- a/drivers/regulator/tps65910-regulator.c +++ b/drivers/regulator/tps65910-regulator.c @@ -1047,7 +1047,7 @@ static struct tps65910_board *tps65910_parse_dt_reg_data( *tps65910_reg_matches = matches; for (idx = 0; idx < count; idx++) { - if (!matches[idx].init_data || !matches[idx].of_node) + if (!matches[idx].of_node) continue; pmic_plat_data->tps65910_pmic_init_data[idx] = @@ -1077,7 +1077,6 @@ static int tps65910_probe(struct platform_device *pdev) struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent); struct regulator_config config = { }; struct tps_info *info; - struct regulator_init_data *reg_data; struct regulator_dev *rdev; struct tps65910_reg *pmic; struct tps65910_board *pmic_plat_data; @@ -1140,14 +1139,6 @@ static int tps65910_probe(struct platform_device *pdev) for (i = 0; i < pmic->num_regulators && i < TPS65910_NUM_REGS; i++, info++) { - - reg_data = pmic_plat_data->tps65910_pmic_init_data[i]; - - /* Regulator API handles empty constraints but not NULL - * constraints */ - if (!reg_data) - continue; - /* Register the regulators */ pmic->info[i] = info; @@ -1199,7 +1190,7 @@ static int tps65910_probe(struct platform_device *pdev) pmic->desc[i].enable_mask = TPS65910_SUPPLY_STATE_ENABLED; config.dev = tps65910->dev; - config.init_data = reg_data; + config.init_data = pmic_plat_data->tps65910_pmic_init_data[i]; config.driver_data = pmic; config.regmap = tps65910->regmap; From 272e2315fac3bfca0edfa3252b8a643c425602af Mon Sep 17 00:00:00 2001 From: Guodong Xu Date: Wed, 13 Aug 2014 19:33:38 +0800 Subject: [PATCH 09/71] regulator: core: add const qualifier to ops in struct regulator_desc struct regulator_ops *ops is a member in struct regulator_desc, which gets its value from individual regulator driver upon regulator_register() and is used by regulator core APIs. It's not allowed for regulator core to modify any of these callbacks in *ops. Add 'const' qualifier to enforce that. Signed-off-by: Guodong Xu Signed-off-by: Mark Brown --- drivers/regulator/core.c | 24 ++++++++++++------------ include/linux/regulator/driver.h | 2 +- 2 files changed, 13 insertions(+), 13 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index a3c3785901f5..052e7f1f011d 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -839,7 +839,7 @@ static void print_constraints(struct regulator_dev *rdev) static int machine_constraints_voltage(struct regulator_dev *rdev, struct regulation_constraints *constraints) { - struct regulator_ops *ops = rdev->desc->ops; + const struct regulator_ops *ops = rdev->desc->ops; int ret; /* do we need to apply the constraint voltage */ @@ -938,7 +938,7 @@ static int machine_constraints_voltage(struct regulator_dev *rdev, static int machine_constraints_current(struct regulator_dev *rdev, struct regulation_constraints *constraints) { - struct regulator_ops *ops = rdev->desc->ops; + const struct regulator_ops *ops = rdev->desc->ops; int ret; if (!constraints->min_uA && !constraints->max_uA) @@ -982,7 +982,7 @@ static int set_machine_constraints(struct regulator_dev *rdev, const struct regulation_constraints *constraints) { int ret = 0; - struct regulator_ops *ops = rdev->desc->ops; + const struct regulator_ops *ops = rdev->desc->ops; if (constraints) rdev->constraints = kmemdup(constraints, sizeof(*constraints), @@ -2208,9 +2208,9 @@ EXPORT_SYMBOL_GPL(regulator_count_voltages); */ int regulator_list_voltage(struct regulator *regulator, unsigned selector) { - struct regulator_dev *rdev = regulator->rdev; - struct regulator_ops *ops = rdev->desc->ops; - int ret; + struct regulator_dev *rdev = regulator->rdev; + const struct regulator_ops *ops = rdev->desc->ops; + int ret; if (rdev->desc->fixed_uV && rdev->desc->n_voltages == 1 && !selector) return rdev->desc->fixed_uV; @@ -2572,8 +2572,8 @@ EXPORT_SYMBOL_GPL(regulator_set_voltage); int regulator_set_voltage_time(struct regulator *regulator, int old_uV, int new_uV) { - struct regulator_dev *rdev = regulator->rdev; - struct regulator_ops *ops = rdev->desc->ops; + struct regulator_dev *rdev = regulator->rdev; + const struct regulator_ops *ops = rdev->desc->ops; int old_sel = -1; int new_sel = -1; int voltage; @@ -3336,9 +3336,9 @@ EXPORT_SYMBOL_GPL(regulator_mode_to_status); */ static int add_regulator_attributes(struct regulator_dev *rdev) { - struct device *dev = &rdev->dev; - struct regulator_ops *ops = rdev->desc->ops; - int status = 0; + struct device *dev = &rdev->dev; + const struct regulator_ops *ops = rdev->desc->ops; + int status = 0; /* some attributes need specific methods to be displayed */ if ((ops->get_voltage && ops->get_voltage(rdev) >= 0) || @@ -3905,7 +3905,7 @@ core_initcall(regulator_init); static int __init regulator_init_complete(void) { struct regulator_dev *rdev; - struct regulator_ops *ops; + const struct regulator_ops *ops; struct regulation_constraints *c; int enabled, ret; diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index bbe03a1924c0..4b628139a9cb 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -245,7 +245,7 @@ struct regulator_desc { int id; bool continuous_voltage_range; unsigned n_voltages; - struct regulator_ops *ops; + const struct regulator_ops *ops; int irq; enum regulator_type type; struct module *owner; From 79fd114161a764dfa456191af89358b3f5201c87 Mon Sep 17 00:00:00 2001 From: Guodong Xu Date: Wed, 13 Aug 2014 19:33:39 +0800 Subject: [PATCH 10/71] regulator: core: factor out delay function from _regulator_do_enable A common delay function can be helpful when implementing new features. Factor it out to maximize code reusability. Signed-off-by: Guodong Xu Signed-off-by: Mark Brown --- drivers/regulator/core.c | 74 ++++++++++++++++++++++------------------ 1 file changed, 40 insertions(+), 34 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 052e7f1f011d..dc0e9813b62d 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1759,6 +1759,45 @@ static int regulator_ena_gpio_ctrl(struct regulator_dev *rdev, bool enable) return 0; } +/** + * _regulator_enable_delay - a delay helper function + * @delay: time to delay in microseconds + * + * Delay for the requested amount of time as per the guidelines in: + * + * Documentation/timers/timers-howto.txt + * + * The assumption here is that regulators will never be enabled in + * atomic context and therefore sleeping functions can be used. + */ +static void _regulator_enable_delay(unsigned int delay) +{ + unsigned int ms = delay / 1000; + unsigned int us = delay % 1000; + + if (ms > 0) { + /* + * For small enough values, handle super-millisecond + * delays in the usleep_range() call below. + */ + if (ms < 20) + us += ms * 1000; + else + msleep(ms); + } + + /* + * Give the scheduler some room to coalesce with any other + * wakeup sources. For delays shorter than 10 us, don't even + * bother setting up high-resolution timers and just busy- + * loop. + */ + if (us >= 10) + usleep_range(us, us + 100); + else + udelay(us); +} + static int _regulator_do_enable(struct regulator_dev *rdev) { int ret, delay; @@ -1792,40 +1831,7 @@ static int _regulator_do_enable(struct regulator_dev *rdev) * together. */ trace_regulator_enable_delay(rdev_get_name(rdev)); - /* - * Delay for the requested amount of time as per the guidelines in: - * - * Documentation/timers/timers-howto.txt - * - * The assumption here is that regulators will never be enabled in - * atomic context and therefore sleeping functions can be used. - */ - if (delay) { - unsigned int ms = delay / 1000; - unsigned int us = delay % 1000; - - if (ms > 0) { - /* - * For small enough values, handle super-millisecond - * delays in the usleep_range() call below. - */ - if (ms < 20) - us += ms * 1000; - else - msleep(ms); - } - - /* - * Give the scheduler some room to coalesce with any other - * wakeup sources. For delays shorter than 10 us, don't even - * bother setting up high-resolution timers and just busy- - * loop. - */ - if (us >= 10) - usleep_range(us, us + 100); - else - udelay(us); - } + _regulator_enable_delay(delay); trace_regulator_enable_complete(rdev_get_name(rdev)); From 871f565055ed232e5751da18a331b73e8254adaf Mon Sep 17 00:00:00 2001 From: Guodong Xu Date: Wed, 13 Aug 2014 19:33:40 +0800 Subject: [PATCH 11/71] regulator: core: add guard delay between calling regulator_disable and _enable Some regulator require a minimum delay between its disable and next enable. This is to avoid damages when out-of-range frequent disable/enable of a single regulator can bring to the regulator chip. Add @off_on_delay to struct regulator_desc. Device drivers' can use this field to set this guard time. Add @last_off_jiffy to struct regulator_dev. When @off_on_delay is set by driver, regulator core can store its last off (disable) time into this field. Signed-off-by: Guodong Xu Signed-off-by: Mark Brown --- drivers/regulator/core.c | 31 +++++++++++++++++++++++++++++++ include/linux/regulator/driver.h | 6 ++++++ 2 files changed, 37 insertions(+) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index dc0e9813b62d..1e976b6320a2 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1813,6 +1813,31 @@ static int _regulator_do_enable(struct regulator_dev *rdev) trace_regulator_enable(rdev_get_name(rdev)); + if (rdev->desc->off_on_delay) { + /* if needed, keep a distance of off_on_delay from last time + * this regulator was disabled. + */ + unsigned long start_jiffy = jiffies; + unsigned long intended, max_delay, remaining; + + max_delay = usecs_to_jiffies(rdev->desc->off_on_delay); + intended = rdev->last_off_jiffy + max_delay; + + if (time_before(start_jiffy, intended)) { + /* calc remaining jiffies to deal with one-time + * timer wrapping. + * in case of multiple timer wrapping, either it can be + * detected by out-of-range remaining, or it cannot be + * detected and we gets a panelty of + * _regulator_enable_delay(). + */ + remaining = intended - start_jiffy; + if (remaining <= max_delay) + _regulator_enable_delay( + jiffies_to_usecs(remaining)); + } + } + if (rdev->ena_pin) { ret = regulator_ena_gpio_ctrl(rdev, true); if (ret < 0) @@ -1925,6 +1950,12 @@ static int _regulator_do_disable(struct regulator_dev *rdev) return ret; } + /* cares about last_off_jiffy only if off_on_delay is required by + * device. + */ + if (rdev->desc->off_on_delay) + rdev->last_off_jiffy = jiffies; + trace_regulator_disable_complete(rdev_get_name(rdev)); return 0; diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index 4b628139a9cb..efe058f8f746 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -238,6 +238,7 @@ enum regulator_type { * @bypass_val_off: Disabling value for control when using regmap set_bypass * * @enable_time: Time taken for initial enable of regulator (in uS). + * @off_on_delay: guard time (in uS), before re-enabling a regulator */ struct regulator_desc { const char *name; @@ -276,6 +277,8 @@ struct regulator_desc { unsigned int bypass_val_off; unsigned int enable_time; + + unsigned int off_on_delay; }; /** @@ -348,6 +351,9 @@ struct regulator_dev { struct regulator_enable_gpio *ena_pin; unsigned int ena_gpio_state:1; + + /* time when this regulator was disabled last time */ + unsigned long last_off_jiffy; }; struct regulator_dev * From 87ca186f7eb663fc5e52b65452a91fe0fec170a0 Mon Sep 17 00:00:00 2001 From: Guodong Xu Date: Wed, 13 Aug 2014 19:33:42 +0800 Subject: [PATCH 12/71] regulator: add driver for hi6421 voltage regulator Add driver support for HiSilicon Hi6421 voltage regulators. Two rules for regulator enabling are defined in hi6421 spec: 1) Between disable and enable of each regulator (LDOs or BUCKs), there must be a protection gap. Use @off_on_delay of regulator core to implement this. 2) No two regulators can be enabled at the same time. Use mutex in hi6421_regulator_pdata to ensure this. A protection gap of 100us is added into each LDO/BUCK's .enable_time. Signed-off-by: Guodong Xu Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 10 + drivers/regulator/Makefile | 1 + drivers/regulator/hi6421-regulator.c | 657 +++++++++++++++++++++++++++ 3 files changed, 668 insertions(+) create mode 100644 drivers/regulator/hi6421-regulator.c diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 2dc8289e5dba..e6b98ed4c12f 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -240,6 +240,16 @@ config REGULATOR_GPIO and the platform has to provide a mapping of GPIO-states to target volts/amps. +config REGULATOR_HI6421 + tristate "HiSilicon Hi6421 PMIC voltage regulator support" + depends on MFD_HI6421_PMIC && OF + help + This driver provides support for the voltage regulators on the + HiSilicon Hi6421 PMU / Codec IC. + Hi6421 is a multi-function device which, on regulator part, provides + 21 general purpose LDOs, 3 dedicated LDOs, and 5 BUCKs. All + of them come with support to either ECO (idle) or sleep mode. + config REGULATOR_ISL6271A tristate "Intersil ISL6271A Power regulator" depends on I2C diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index aa4a6aa7b558..5513e2c141b1 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -32,6 +32,7 @@ obj-$(CONFIG_REGULATOR_DBX500_PRCMU) += dbx500-prcmu.o obj-$(CONFIG_REGULATOR_DB8500_PRCMU) += db8500-prcmu.o obj-$(CONFIG_REGULATOR_FAN53555) += fan53555.o obj-$(CONFIG_REGULATOR_GPIO) += gpio-regulator.o +obj-$(CONFIG_REGULATOR_HI6421) += hi6421-regulator.o obj-$(CONFIG_REGULATOR_ISL6271A) += isl6271a-regulator.o obj-$(CONFIG_REGULATOR_LP3971) += lp3971.o obj-$(CONFIG_REGULATOR_LP3972) += lp3972.o diff --git a/drivers/regulator/hi6421-regulator.c b/drivers/regulator/hi6421-regulator.c new file mode 100644 index 000000000000..b40851eb5466 --- /dev/null +++ b/drivers/regulator/hi6421-regulator.c @@ -0,0 +1,657 @@ +/* + * Device driver for regulators in Hi6421 IC + * + * Copyright (c) <2011-2014> HiSilicon Technologies Co., Ltd. + * http://www.hisilicon.com + * Copyright (c) <2013-2014> Linaro Ltd. + * http://www.linaro.org + * + * Author: Guodong Xu + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * struct hi6421_regulator_pdata - Hi6421 regulator data of platform device + * @lock: mutex to serialize regulator enable + */ +struct hi6421_regulator_pdata { + struct mutex lock; +}; + +/* + * struct hi6421_regulator_info - hi6421 regulator information + * @dev: device pointer + * @desc: regulator description + * @regulator: regulator device + * @mode_mask: ECO mode bitmask of LDOs; for BUCKs, this masks sleep + * @eco_microamp: eco mode load upper limit (in mA), valid for LDOs only + * @valid_modes_mask: valid operating modes + */ +struct hi6421_regulator_info { + struct device *dev; + struct regulator_desc desc; + struct regulator_dev *regulator; + u8 mode_mask; + u32 eco_microamp; + unsigned int valid_modes_mask; +}; + +/* HI6421 regulators */ +enum hi6421_regulator_id { + HI6421_LDO0, + HI6421_LDO1, + HI6421_LDO2, + HI6421_LDO3, + HI6421_LDO4, + HI6421_LDO5, + HI6421_LDO6, + HI6421_LDO7, + HI6421_LDO8, + HI6421_LDO9, + HI6421_LDO10, + HI6421_LDO11, + HI6421_LDO12, + HI6421_LDO13, + HI6421_LDO14, + HI6421_LDO15, + HI6421_LDO16, + HI6421_LDO17, + HI6421_LDO18, + HI6421_LDO19, + HI6421_LDO20, + HI6421_LDOAUDIO, + HI6421_BUCK0, + HI6421_BUCK1, + HI6421_BUCK2, + HI6421_BUCK3, + HI6421_BUCK4, + HI6421_BUCK5, + HI6421_NUM_REGULATORS, +}; + +#define HI6421_REGULATOR_OF_MATCH(_name, id) \ +{ \ + .name = #_name, \ + .driver_data = (void *) HI6421_##id, \ +} + +static struct of_regulator_match hi6421_regulator_match[] = { + HI6421_REGULATOR_OF_MATCH(hi6421_vout0, LDO0), + HI6421_REGULATOR_OF_MATCH(hi6421_vout1, LDO1), + HI6421_REGULATOR_OF_MATCH(hi6421_vout2, LDO2), + HI6421_REGULATOR_OF_MATCH(hi6421_vout3, LDO3), + HI6421_REGULATOR_OF_MATCH(hi6421_vout4, LDO4), + HI6421_REGULATOR_OF_MATCH(hi6421_vout5, LDO5), + HI6421_REGULATOR_OF_MATCH(hi6421_vout6, LDO6), + HI6421_REGULATOR_OF_MATCH(hi6421_vout7, LDO7), + HI6421_REGULATOR_OF_MATCH(hi6421_vout8, LDO8), + HI6421_REGULATOR_OF_MATCH(hi6421_vout9, LDO9), + HI6421_REGULATOR_OF_MATCH(hi6421_vout10, LDO10), + HI6421_REGULATOR_OF_MATCH(hi6421_vout11, LDO11), + HI6421_REGULATOR_OF_MATCH(hi6421_vout12, LDO12), + HI6421_REGULATOR_OF_MATCH(hi6421_vout13, LDO13), + HI6421_REGULATOR_OF_MATCH(hi6421_vout14, LDO14), + HI6421_REGULATOR_OF_MATCH(hi6421_vout15, LDO15), + HI6421_REGULATOR_OF_MATCH(hi6421_vout16, LDO16), + HI6421_REGULATOR_OF_MATCH(hi6421_vout17, LDO17), + HI6421_REGULATOR_OF_MATCH(hi6421_vout18, LDO18), + HI6421_REGULATOR_OF_MATCH(hi6421_vout19, LDO19), + HI6421_REGULATOR_OF_MATCH(hi6421_vout20, LDO20), + HI6421_REGULATOR_OF_MATCH(hi6421_vout_audio, LDOAUDIO), + HI6421_REGULATOR_OF_MATCH(hi6421_buck0, BUCK0), + HI6421_REGULATOR_OF_MATCH(hi6421_buck1, BUCK1), + HI6421_REGULATOR_OF_MATCH(hi6421_buck2, BUCK2), + HI6421_REGULATOR_OF_MATCH(hi6421_buck3, BUCK3), + HI6421_REGULATOR_OF_MATCH(hi6421_buck4, BUCK4), + HI6421_REGULATOR_OF_MATCH(hi6421_buck5, BUCK5), +}; + +/* LDO 0, 4~7, 9~14, 16~20 have same voltage table. */ +static const unsigned int ldo_0_voltages[] = { + 1500000, 1800000, 2400000, 2500000, + 2600000, 2700000, 2850000, 3000000, +}; + +/* LDO 8, 15 have same voltage table. */ +static const unsigned int ldo_8_voltages[] = { + 1500000, 1800000, 2400000, 2600000, + 2700000, 2850000, 3000000, 3300000, +}; + +/* Ranges are sorted in ascending order. */ +static const struct regulator_linear_range ldo_audio_volt_range[] = { + REGULATOR_LINEAR_RANGE(2800000, 0, 3, 50000), + REGULATOR_LINEAR_RANGE(3000000, 4, 7, 100000), +}; + +static const unsigned int buck_3_voltages[] = { + 950000, 1050000, 1100000, 1117000, + 1134000, 1150000, 1167000, 1200000, +}; + +static const unsigned int buck_4_voltages[] = { + 1150000, 1200000, 1250000, 1350000, + 1700000, 1800000, 1900000, 2000000, +}; + +static const unsigned int buck_5_voltages[] = { + 1150000, 1200000, 1250000, 1350000, + 1600000, 1700000, 1800000, 1900000, +}; + +static const struct regulator_ops hi6421_ldo_ops; +static const struct regulator_ops hi6421_ldo_linear_ops; +static const struct regulator_ops hi6421_ldo_linear_range_ops; +static const struct regulator_ops hi6421_buck012_ops; +static const struct regulator_ops hi6421_buck345_ops; + +#define HI6421_LDO_ENABLE_TIME (350) +/* + * _id - LDO id name string + * v_table - voltage table + * vreg - voltage select register + * vmask - voltage select mask + * ereg - enable register + * emask - enable mask + * odelay - off/on delay time in uS + * ecomask - eco mode mask + * ecoamp - eco mode load uppler limit in mA + */ +#define HI6421_LDO(_id, v_table, vreg, vmask, ereg, emask, \ + odelay, ecomask, ecoamp) \ + [HI6421_##_id] = { \ + .desc = { \ + .name = #_id, \ + .ops = &hi6421_ldo_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = HI6421_##_id, \ + .owner = THIS_MODULE, \ + .n_voltages = ARRAY_SIZE(v_table), \ + .volt_table = v_table, \ + .vsel_reg = HI6421_REG_TO_BUS_ADDR(vreg), \ + .vsel_mask = vmask, \ + .enable_reg = HI6421_REG_TO_BUS_ADDR(ereg), \ + .enable_mask = emask, \ + .enable_time = HI6421_LDO_ENABLE_TIME, \ + .off_on_delay = odelay, \ + }, \ + .mode_mask = ecomask, \ + .eco_microamp = ecoamp, \ + .valid_modes_mask = (REGULATOR_MODE_NORMAL \ + | REGULATOR_MODE_IDLE), \ + } + +/* HI6421 LDO1~3 are linear voltage regulators at fixed uV_step + * + * _id - LDO id name string + * _min_uV - minimum voltage supported in uV + * n_volt - number of votages available + * vstep - voltage increase in each linear step in uV + * vreg - voltage select register + * vmask - voltage select mask + * ereg - enable register + * emask - enable mask + * odelay - off/on delay time in uS + * ecomask - eco mode mask + * ecoamp - eco mode load uppler limit in mA + */ +#define HI6421_LDO_LINEAR(_id, _min_uV, n_volt, vstep, vreg, vmask, \ + ereg, emask, odelay, ecomask, ecoamp) \ + [HI6421_##_id] = { \ + .desc = { \ + .name = #_id, \ + .ops = &hi6421_ldo_linear_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = HI6421_##_id, \ + .owner = THIS_MODULE, \ + .min_uV = _min_uV, \ + .n_voltages = n_volt, \ + .uV_step = vstep, \ + .vsel_reg = HI6421_REG_TO_BUS_ADDR(vreg), \ + .vsel_mask = vmask, \ + .enable_reg = HI6421_REG_TO_BUS_ADDR(ereg), \ + .enable_mask = emask, \ + .enable_time = HI6421_LDO_ENABLE_TIME, \ + .off_on_delay = odelay, \ + }, \ + .mode_mask = ecomask, \ + .eco_microamp = ecoamp, \ + .valid_modes_mask = (REGULATOR_MODE_NORMAL \ + | REGULATOR_MODE_IDLE), \ + } + +/* HI6421 LDOAUDIO is a linear voltage regulator with two 4-step ranges + * + * _id - LDO id name string + * n_volt - number of votages available + * volt_ranges - array of regulator_linear_range + * vstep - voltage increase in each linear step in uV + * vreg - voltage select register + * vmask - voltage select mask + * ereg - enable register + * emask - enable mask + * odelay - off/on delay time in uS + * ecomask - eco mode mask + * ecoamp - eco mode load uppler limit in mA + */ +#define HI6421_LDO_LINEAR_RANGE(_id, n_volt, volt_ranges, vreg, vmask, \ + ereg, emask, odelay, ecomask, ecoamp) \ + [HI6421_##_id] = { \ + .desc = { \ + .name = #_id, \ + .ops = &hi6421_ldo_linear_range_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = HI6421_##_id, \ + .owner = THIS_MODULE, \ + .n_voltages = n_volt, \ + .linear_ranges = volt_ranges, \ + .n_linear_ranges = ARRAY_SIZE(volt_ranges), \ + .vsel_reg = HI6421_REG_TO_BUS_ADDR(vreg), \ + .vsel_mask = vmask, \ + .enable_reg = HI6421_REG_TO_BUS_ADDR(ereg), \ + .enable_mask = emask, \ + .enable_time = HI6421_LDO_ENABLE_TIME, \ + .off_on_delay = odelay, \ + }, \ + .mode_mask = ecomask, \ + .eco_microamp = ecoamp, \ + .valid_modes_mask = (REGULATOR_MODE_NORMAL \ + | REGULATOR_MODE_IDLE), \ + } + +/* HI6421 BUCK0/1/2 are linear voltage regulators at fixed uV_step + * + * _id - BUCK0/1/2 id name string + * vreg - voltage select register + * vmask - voltage select mask + * ereg - enable register + * emask - enable mask + * sleepmask - mask of sleep mode + * etime - enable time + * odelay - off/on delay time in uS + */ +#define HI6421_BUCK012(_id, vreg, vmask, ereg, emask, sleepmask, \ + etime, odelay) \ + [HI6421_##_id] = { \ + .desc = { \ + .name = #_id, \ + .ops = &hi6421_buck012_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = HI6421_##_id, \ + .owner = THIS_MODULE, \ + .min_uV = 700000, \ + .n_voltages = 128, \ + .uV_step = 7086, \ + .vsel_reg = HI6421_REG_TO_BUS_ADDR(vreg), \ + .vsel_mask = vmask, \ + .enable_reg = HI6421_REG_TO_BUS_ADDR(ereg), \ + .enable_mask = emask, \ + .enable_time = etime, \ + .off_on_delay = odelay, \ + }, \ + .mode_mask = sleepmask, \ + .valid_modes_mask = (REGULATOR_MODE_NORMAL \ + | REGULATOR_MODE_STANDBY), \ + } + +/* HI6421 BUCK3/4/5 share similar configurations as LDOs, with exception + * that it supports SLEEP mode, so has different .ops. + * + * _id - LDO id name string + * v_table - voltage table + * vreg - voltage select register + * vmask - voltage select mask + * ereg - enable register + * emask - enable mask + * odelay - off/on delay time in uS + * sleepmask - mask of sleep mode + */ +#define HI6421_BUCK345(_id, v_table, vreg, vmask, ereg, emask, \ + odelay, sleepmask) \ + [HI6421_##_id] = { \ + .desc = { \ + .name = #_id, \ + .ops = &hi6421_buck345_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = HI6421_##_id, \ + .owner = THIS_MODULE, \ + .n_voltages = ARRAY_SIZE(v_table), \ + .volt_table = v_table, \ + .vsel_reg = HI6421_REG_TO_BUS_ADDR(vreg), \ + .vsel_mask = vmask, \ + .enable_reg = HI6421_REG_TO_BUS_ADDR(ereg), \ + .enable_mask = emask, \ + .enable_time = HI6421_LDO_ENABLE_TIME, \ + .off_on_delay = odelay, \ + }, \ + .mode_mask = sleepmask, \ + .valid_modes_mask = (REGULATOR_MODE_NORMAL \ + | REGULATOR_MODE_STANDBY), \ + } + +/* HI6421 regulator information */ +static struct hi6421_regulator_info + hi6421_regulator_info[HI6421_NUM_REGULATORS] = { + HI6421_LDO(LDO0, ldo_0_voltages, 0x20, 0x07, 0x20, 0x10, + 10000, 0x20, 8000), + HI6421_LDO_LINEAR(LDO1, 1700000, 4, 100000, 0x21, 0x03, 0x21, 0x10, + 10000, 0x20, 5000), + HI6421_LDO_LINEAR(LDO2, 1050000, 8, 50000, 0x22, 0x07, 0x22, 0x10, + 20000, 0x20, 8000), + HI6421_LDO_LINEAR(LDO3, 1050000, 8, 50000, 0x23, 0x07, 0x23, 0x10, + 20000, 0x20, 8000), + HI6421_LDO(LDO4, ldo_0_voltages, 0x24, 0x07, 0x24, 0x10, + 20000, 0x20, 8000), + HI6421_LDO(LDO5, ldo_0_voltages, 0x25, 0x07, 0x25, 0x10, + 20000, 0x20, 8000), + HI6421_LDO(LDO6, ldo_0_voltages, 0x26, 0x07, 0x26, 0x10, + 20000, 0x20, 8000), + HI6421_LDO(LDO7, ldo_0_voltages, 0x27, 0x07, 0x27, 0x10, + 20000, 0x20, 5000), + HI6421_LDO(LDO8, ldo_8_voltages, 0x28, 0x07, 0x28, 0x10, + 20000, 0x20, 8000), + HI6421_LDO(LDO9, ldo_0_voltages, 0x29, 0x07, 0x29, 0x10, + 40000, 0x20, 8000), + HI6421_LDO(LDO10, ldo_0_voltages, 0x2a, 0x07, 0x2a, 0x10, + 40000, 0x20, 8000), + HI6421_LDO(LDO11, ldo_0_voltages, 0x2b, 0x07, 0x2b, 0x10, + 40000, 0x20, 8000), + HI6421_LDO(LDO12, ldo_0_voltages, 0x2c, 0x07, 0x2c, 0x10, + 40000, 0x20, 8000), + HI6421_LDO(LDO13, ldo_0_voltages, 0x2d, 0x07, 0x2d, 0x10, + 40000, 0x20, 8000), + HI6421_LDO(LDO14, ldo_0_voltages, 0x2e, 0x07, 0x2e, 0x10, + 40000, 0x20, 8000), + HI6421_LDO(LDO15, ldo_8_voltages, 0x2f, 0x07, 0x2f, 0x10, + 40000, 0x20, 8000), + HI6421_LDO(LDO16, ldo_0_voltages, 0x30, 0x07, 0x30, 0x10, + 40000, 0x20, 8000), + HI6421_LDO(LDO17, ldo_0_voltages, 0x31, 0x07, 0x31, 0x10, + 40000, 0x20, 8000), + HI6421_LDO(LDO18, ldo_0_voltages, 0x32, 0x07, 0x32, 0x10, + 40000, 0x20, 8000), + HI6421_LDO(LDO19, ldo_0_voltages, 0x33, 0x07, 0x33, 0x10, + 40000, 0x20, 8000), + HI6421_LDO(LDO20, ldo_0_voltages, 0x34, 0x07, 0x34, 0x10, + 40000, 0x20, 8000), + HI6421_LDO_LINEAR_RANGE(LDOAUDIO, 8, ldo_audio_volt_range, 0x36, + 0x70, 0x36, 0x01, 40000, 0x02, 5000), + HI6421_BUCK012(BUCK0, 0x0d, 0x7f, 0x0c, 0x01, 0x10, 400, 20000), + HI6421_BUCK012(BUCK1, 0x0f, 0x7f, 0x0e, 0x01, 0x10, 400, 20000), + HI6421_BUCK012(BUCK2, 0x11, 0x7f, 0x10, 0x01, 0x10, 350, 100), + HI6421_BUCK345(BUCK3, buck_3_voltages, 0x13, 0x07, 0x12, 0x01, + 20000, 0x10), + HI6421_BUCK345(BUCK4, buck_4_voltages, 0x15, 0x07, 0x14, 0x01, + 20000, 0x10), + HI6421_BUCK345(BUCK5, buck_5_voltages, 0x17, 0x07, 0x16, 0x01, + 20000, 0x10), +}; + +static int hi6421_regulator_enable(struct regulator_dev *rdev) +{ + struct hi6421_regulator_pdata *pdata; + + pdata = dev_get_drvdata(rdev->dev.parent); + /* hi6421 spec requires regulator enablement must be serialized: + * - Because when BUCK, LDO switching from off to on, it will have + * a huge instantaneous current; so you can not turn on two or + * more LDO or BUCKs simultaneously, or it may burn the chip. + */ + mutex_lock(&pdata->lock); + + /* call regulator regmap helper */ + regulator_enable_regmap(rdev); + + mutex_unlock(&pdata->lock); + return 0; +} + +static unsigned int hi6421_regulator_ldo_get_mode(struct regulator_dev *rdev) +{ + struct hi6421_regulator_info *info = rdev_get_drvdata(rdev); + u32 reg_val; + + regmap_read(rdev->regmap, rdev->desc->enable_reg, ®_val); + if (reg_val & info->mode_mask) + return REGULATOR_MODE_IDLE; + else + return REGULATOR_MODE_NORMAL; +} + +static unsigned int hi6421_regulator_buck_get_mode(struct regulator_dev *rdev) +{ + struct hi6421_regulator_info *info = rdev_get_drvdata(rdev); + u32 reg_val; + + regmap_read(rdev->regmap, rdev->desc->enable_reg, ®_val); + if (reg_val & info->mode_mask) + return REGULATOR_MODE_STANDBY; + else + return REGULATOR_MODE_NORMAL; +} + +static int hi6421_regulator_ldo_set_mode(struct regulator_dev *rdev, + unsigned int mode) +{ + struct hi6421_regulator_info *info = rdev_get_drvdata(rdev); + u32 new_mode; + + switch (mode) { + case REGULATOR_MODE_NORMAL: + new_mode = 0; + break; + case REGULATOR_MODE_IDLE: + new_mode = info->mode_mask; + break; + default: + return -EINVAL; + } + + /* set mode */ + regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + info->mode_mask, new_mode); + + return 0; +} + +static int hi6421_regulator_buck_set_mode(struct regulator_dev *rdev, + unsigned int mode) +{ + struct hi6421_regulator_info *info = rdev_get_drvdata(rdev); + u32 new_mode; + + switch (mode) { + case REGULATOR_MODE_NORMAL: + new_mode = 0; + break; + case REGULATOR_MODE_STANDBY: + new_mode = info->mode_mask; + break; + default: + return -EINVAL; + } + + /* set mode */ + regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + info->mode_mask, new_mode); + + return 0; +} + +unsigned int hi6421_regulator_ldo_get_optimum_mode(struct regulator_dev *rdev, + int input_uV, int output_uV, int load_uA) +{ + struct hi6421_regulator_info *info = rdev_get_drvdata(rdev); + + if (load_uA > info->eco_microamp) + return REGULATOR_MODE_NORMAL; + else + return REGULATOR_MODE_IDLE; +} + +static const struct regulator_ops hi6421_ldo_ops = { + .is_enabled = regulator_is_enabled_regmap, + .enable = hi6421_regulator_enable, + .disable = regulator_disable_regmap, + .list_voltage = regulator_list_voltage_table, + .map_voltage = regulator_map_voltage_ascend, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_mode = hi6421_regulator_ldo_get_mode, + .set_mode = hi6421_regulator_ldo_set_mode, + .get_optimum_mode = hi6421_regulator_ldo_get_optimum_mode, +}; + +static const struct regulator_ops hi6421_ldo_linear_ops = { + .is_enabled = regulator_is_enabled_regmap, + .enable = hi6421_regulator_enable, + .disable = regulator_disable_regmap, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_mode = hi6421_regulator_ldo_get_mode, + .set_mode = hi6421_regulator_ldo_set_mode, + .get_optimum_mode = hi6421_regulator_ldo_get_optimum_mode, +}; + +static const struct regulator_ops hi6421_ldo_linear_range_ops = { + .is_enabled = regulator_is_enabled_regmap, + .enable = hi6421_regulator_enable, + .disable = regulator_disable_regmap, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_mode = hi6421_regulator_ldo_get_mode, + .set_mode = hi6421_regulator_ldo_set_mode, + .get_optimum_mode = hi6421_regulator_ldo_get_optimum_mode, +}; + +static const struct regulator_ops hi6421_buck012_ops = { + .is_enabled = regulator_is_enabled_regmap, + .enable = hi6421_regulator_enable, + .disable = regulator_disable_regmap, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_mode = hi6421_regulator_buck_get_mode, + .set_mode = hi6421_regulator_buck_set_mode, +}; + +static const struct regulator_ops hi6421_buck345_ops = { + .is_enabled = regulator_is_enabled_regmap, + .enable = hi6421_regulator_enable, + .disable = regulator_disable_regmap, + .list_voltage = regulator_list_voltage_table, + .map_voltage = regulator_map_voltage_ascend, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_mode = hi6421_regulator_buck_get_mode, + .set_mode = hi6421_regulator_buck_set_mode, +}; + +static int hi6421_regulator_register(struct platform_device *pdev, + struct regmap *rmap, + struct regulator_init_data *init_data, + int id, struct device_node *np) +{ + struct hi6421_regulator_info *info = NULL; + struct regulator_config config = { }; + + /* assign per-regulator data */ + info = &hi6421_regulator_info[id]; + info->dev = &pdev->dev; + + config.dev = &pdev->dev; + config.init_data = init_data; + config.driver_data = info; + config.regmap = rmap; + config.of_node = np; + + /* register regulator with framework */ + info->regulator = devm_regulator_register(&pdev->dev, &info->desc, + &config); + if (IS_ERR(info->regulator)) { + dev_err(&pdev->dev, "failed to register regulator %s\n", + info->desc.name); + return PTR_ERR(info->regulator); + } + + return 0; +} + +static int hi6421_regulator_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct device_node *np; + struct hi6421_pmic *pmic; + struct hi6421_regulator_pdata *pdata; + int i, ret = 0; + + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + mutex_init(&pdata->lock); + platform_set_drvdata(pdev, pdata); + + np = of_get_child_by_name(dev->parent->of_node, "regulators"); + if (!np) + return -ENODEV; + + ret = of_regulator_match(dev, np, + hi6421_regulator_match, + ARRAY_SIZE(hi6421_regulator_match)); + of_node_put(np); + if (ret < 0) { + dev_err(dev, "Error parsing regulator init data: %d\n", ret); + return ret; + } + + pmic = dev_get_drvdata(dev->parent); + + for (i = 0; i < ARRAY_SIZE(hi6421_regulator_info); i++) { + ret = hi6421_regulator_register(pdev, pmic->regmap, + hi6421_regulator_match[i].init_data, i, + hi6421_regulator_match[i].of_node); + if (ret) + return ret; + } + + return 0; +} + +static struct platform_driver hi6421_regulator_driver = { + .driver = { + .name = "hi6421-regulator", + .owner = THIS_MODULE, + }, + .probe = hi6421_regulator_probe, +}; +module_platform_driver(hi6421_regulator_driver); + +MODULE_AUTHOR("Guodong Xu "); +MODULE_DESCRIPTION("Hi6421 regulator driver"); +MODULE_LICENSE("GPL v2"); From 1d3e6a6985c14f0510ebbd81fb9e8c02b24f8791 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 17 Aug 2014 18:34:48 +0800 Subject: [PATCH 13/71] regulator: da9211: Check return value of devm_kzalloc() Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/da9211-regulator.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/regulator/da9211-regulator.c b/drivers/regulator/da9211-regulator.c index ccc2e362d751..a26f1d283c57 100644 --- a/drivers/regulator/da9211-regulator.c +++ b/drivers/regulator/da9211-regulator.c @@ -343,6 +343,8 @@ static int da9211_i2c_probe(struct i2c_client *i2c, unsigned int data; chip = devm_kzalloc(&i2c->dev, sizeof(struct da9211), GFP_KERNEL); + if (!chip) + return -ENOMEM; chip->dev = &i2c->dev; chip->regmap = devm_regmap_init_i2c(i2c, &da9211_regmap_config); From 716845ebeb505353d900320b4a74e8330520410d Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 18 Aug 2014 10:34:08 +0800 Subject: [PATCH 14/71] regulator: core: Fix build error due to const qualifier for ops Drop const qualifier for ops of struct regulator_desc. Allow regulator drivers to update ops before registering regulator. Fix below build error: CC [M] drivers/regulator/mc13892-regulator.o drivers/regulator/mc13892-regulator.c: In function 'mc13892_regulator_probe': drivers/regulator/mc13892-regulator.c:586:3: error: assignment of member 'set_mode' in read-only object drivers/regulator/mc13892-regulator.c:588:3: error: assignment of member 'get_mode' in read-only object make[2]: *** [drivers/regulator/mc13892-regulator.o] Error 1 make[1]: *** [drivers/regulator] Error 2 make: *** [drivers] Error 2 Reported-by: Stephen Rothwell Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- include/linux/regulator/driver.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index efe058f8f746..3abda7554d82 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -246,7 +246,7 @@ struct regulator_desc { int id; bool continuous_voltage_range; unsigned n_voltages; - const struct regulator_ops *ops; + struct regulator_ops *ops; int irq; enum regulator_type type; struct module *owner; From e6f2f805d722bf94efe89755372bcc6ff60d8d90 Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Mon, 18 Aug 2014 10:32:41 +0200 Subject: [PATCH 15/71] regulator: Add driver for max77802 PMIC PMIC regulators The MAX77802 PMIC has 10 high-efficiency Buck and 32 Low-dropout (LDO) regulators. This patch adds support for all these regulators found on the MAX77802 PMIC and is based on a driver added by Simon Glass to the Chrome OS kernel 3.8 tree. Signed-off-by: Javier Martinez Canillas Tested-by: Naveen Krishna Chatradhi Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 9 + drivers/regulator/Makefile | 1 + drivers/regulator/max77802.c | 578 +++++++++++++++++++++++++++++++++++ 3 files changed, 588 insertions(+) create mode 100644 drivers/regulator/max77802.c diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 2dc8289e5dba..8134a99e2a09 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -387,6 +387,15 @@ config REGULATOR_MAX77693 and one current regulator 'CHARGER'. This is suitable for Exynos-4x12 chips. +config REGULATOR_MAX77802 + tristate "Maxim 77802 regulator" + depends on MFD_MAX77686 + help + This driver controls a Maxim 77802 regulator + via I2C bus. The provided regulator is suitable for + Exynos5420/Exynos5800 SoCs to control various voltages. + It includes support for control of voltage and ramp speed. + config REGULATOR_MC13XXX_CORE tristate diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index aa4a6aa7b558..b4ec6c85307c 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -52,6 +52,7 @@ obj-$(CONFIG_REGULATOR_MAX8997) += max8997.o obj-$(CONFIG_REGULATOR_MAX8998) += max8998.o obj-$(CONFIG_REGULATOR_MAX77686) += max77686.o obj-$(CONFIG_REGULATOR_MAX77693) += max77693.o +obj-$(CONFIG_REGULATOR_MAX77802) += max77802.o obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o diff --git a/drivers/regulator/max77802.c b/drivers/regulator/max77802.c new file mode 100644 index 000000000000..5f022f859d49 --- /dev/null +++ b/drivers/regulator/max77802.c @@ -0,0 +1,578 @@ +/* + * max77802.c - Regulator driver for the Maxim 77802 + * + * Copyright (C) 2013-2014 Google, Inc + * Simon Glass + * + * Copyright (C) 2012 Samsung Electronics + * Chiwoong Byun + * Jonghwa Lee + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * This driver is based on max8997.c + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* Default ramp delay in case it is not manually set */ +#define MAX77802_RAMP_DELAY 100000 /* uV/us */ + +#define MAX77802_OPMODE_SHIFT_LDO 6 +#define MAX77802_OPMODE_BUCK234_SHIFT 4 +#define MAX77802_OPMODE_MASK 0x3 + +#define MAX77802_VSEL_MASK 0x3F +#define MAX77802_DVS_VSEL_MASK 0xFF + +#define MAX77802_RAMP_RATE_MASK_2BIT 0xC0 +#define MAX77802_RAMP_RATE_SHIFT_2BIT 6 +#define MAX77802_RAMP_RATE_MASK_4BIT 0xF0 +#define MAX77802_RAMP_RATE_SHIFT_4BIT 4 + +/* MAX77802 has two register formats: 2-bit and 4-bit */ +static const unsigned int ramp_table_77802_2bit[] = { + 12500, + 25000, + 50000, + 100000, +}; + +static unsigned int ramp_table_77802_4bit[] = { + 1000, 2000, 3030, 4000, + 5000, 5880, 7140, 8330, + 9090, 10000, 11110, 12500, + 16670, 25000, 50000, 100000, +}; + +struct max77802_regulator_prv { + int num_regulators; + struct regulator_dev *rdev[MAX77802_REG_MAX]; + unsigned int opmode[MAX77802_REG_MAX]; +}; + +static int max77802_get_opmode_shift(int id) +{ + if (id == MAX77802_BUCK1 || (id >= MAX77802_BUCK5 && + id <= MAX77802_BUCK10)) + return 0; + + if (id >= MAX77802_BUCK2 && id <= MAX77802_BUCK4) + return MAX77802_OPMODE_BUCK234_SHIFT; + + if (id >= MAX77802_LDO1 && id <= MAX77802_LDO35) + return MAX77802_OPMODE_SHIFT_LDO; + + return -EINVAL; +} + +/* + * Some BUCKS supports Normal[ON/OFF] mode during suspend + * + * BUCK 1, 6, 2-4, 5, 7-10 (all) + * + * The other mode (0x02) will make PWRREQ switch between normal + * and low power. + */ +static int max77802_buck_set_suspend_disable(struct regulator_dev *rdev) +{ + unsigned int val = MAX77802_OPMODE_STANDBY; + struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + int shift = max77802_get_opmode_shift(id); + + max77802->opmode[id] = val; + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + rdev->desc->enable_mask, val << shift); +} + +/* + * Some LDOs supports LPM-ON/OFF/Normal-ON mode during suspend state + * (Enable Control Logic1 by PWRREQ) + * + * LDOs 2, 4-19, 22-35. + * + */ +static int max77802_ldo_set_suspend_mode_logic1(struct regulator_dev *rdev, + unsigned int mode) +{ + struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + unsigned int val; + int shift = max77802_get_opmode_shift(id); + + switch (mode) { + case REGULATOR_MODE_IDLE: /* ON in LP Mode */ + val = MAX77802_OPMODE_LP; + break; + case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */ + val = MAX77802_OPMODE_NORMAL; + break; + case REGULATOR_MODE_STANDBY: /* ON/OFF by PWRREQ */ + val = MAX77802_OPMODE_STANDBY; + break; + default: + dev_warn(&rdev->dev, "%s: regulator mode: 0x%x not supported\n", + rdev->desc->name, mode); + return -EINVAL; + } + + max77802->opmode[rdev_get_id(rdev)] = val; + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + rdev->desc->enable_mask, val << shift); +} + +/* + * Mode 1 (Output[ON/OFF] by PWRREQ) is not supported on some LDOs + * (Enable Control Logic2 by PWRREQ) + * + * LDOs 1, 20, 21, and 3, + * + */ +static int max77802_ldo_set_suspend_mode_logic2(struct regulator_dev *rdev, + unsigned int mode) +{ + struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + unsigned int val; + int shift = max77802_get_opmode_shift(id); + + switch (mode) { + case REGULATOR_MODE_IDLE: /* ON in LP Mode */ + val = MAX77802_OPMODE_LP; + break; + case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */ + val = MAX77802_OPMODE_NORMAL; + break; + default: + dev_warn(&rdev->dev, "%s: regulator mode: 0x%x not supported\n", + rdev->desc->name, mode); + return -EINVAL; + } + + max77802->opmode[rdev_get_id(rdev)] = val; + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + rdev->desc->enable_mask, val << shift); +} + +static int max77802_enable(struct regulator_dev *rdev) +{ + struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + int shift = max77802_get_opmode_shift(id); + + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + rdev->desc->enable_mask, + max77802->opmode[id] << shift); +} + +static int max77802_find_ramp_value(struct regulator_dev *rdev, + const unsigned int limits[], int size, + unsigned int ramp_delay) +{ + int i; + + for (i = 0; i < size; i++) { + if (ramp_delay <= limits[i]) + return i; + } + + /* Use maximum value for no ramp control */ + dev_warn(&rdev->dev, "%s: ramp_delay: %d not supported, setting 100000\n", + rdev->desc->name, ramp_delay); + return size - 1; +} + +/* Used for BUCKs 2-4 */ +static int max77802_set_ramp_delay_2bit(struct regulator_dev *rdev, + int ramp_delay) +{ + int id = rdev_get_id(rdev); + unsigned int ramp_value; + + if (id > MAX77802_BUCK4) { + dev_warn(&rdev->dev, + "%s: regulator: ramp delay not supported\n", + rdev->desc->name); + return -EINVAL; + } + ramp_value = max77802_find_ramp_value(rdev, ramp_table_77802_2bit, + ARRAY_SIZE(ramp_table_77802_2bit), ramp_delay); + + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + MAX77802_RAMP_RATE_MASK_2BIT, + ramp_value << MAX77802_RAMP_RATE_SHIFT_2BIT); +} + +/* For BUCK1, 6 */ +static int max77802_set_ramp_delay_4bit(struct regulator_dev *rdev, + int ramp_delay) +{ + unsigned int ramp_value; + + ramp_value = max77802_find_ramp_value(rdev, ramp_table_77802_4bit, + ARRAY_SIZE(ramp_table_77802_4bit), ramp_delay); + + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + MAX77802_RAMP_RATE_MASK_4BIT, + ramp_value << MAX77802_RAMP_RATE_SHIFT_4BIT); +} + +/* + * LDOs 2, 4-19, 22-35 + */ +static struct regulator_ops max77802_ldo_ops_logic1 = { + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = max77802_enable, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_suspend_mode = max77802_ldo_set_suspend_mode_logic1, +}; + +/* + * LDOs 1, 20, 21, 3 + */ +static struct regulator_ops max77802_ldo_ops_logic2 = { + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = max77802_enable, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_suspend_mode = max77802_ldo_set_suspend_mode_logic2, +}; + +/* BUCKS 1, 6 */ +static struct regulator_ops max77802_buck_16_dvs_ops = { + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = max77802_enable, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_ramp_delay = max77802_set_ramp_delay_4bit, + .set_suspend_disable = max77802_buck_set_suspend_disable, +}; + +/* BUCKs 2-4, 5, 7-10 */ +static struct regulator_ops max77802_buck_dvs_ops = { + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = max77802_enable, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_ramp_delay = max77802_set_ramp_delay_2bit, + .set_suspend_disable = max77802_buck_set_suspend_disable, +}; + +/* LDOs 3-7, 9-14, 18-26, 28, 29, 32-34 */ +#define regulator_77802_desc_p_ldo(num, supply, log) { \ + .name = "LDO"#num, \ + .id = MAX77802_LDO##num, \ + .supply_name = "inl"#supply, \ + .ops = &max77802_ldo_ops_logic##log, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = 800000, \ + .uV_step = 50000, \ + .ramp_delay = MAX77802_RAMP_DELAY, \ + .n_voltages = 1 << 6, \ + .vsel_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \ + .vsel_mask = MAX77802_VSEL_MASK, \ + .enable_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \ + .enable_mask = MAX77802_OPMODE_MASK << MAX77802_OPMODE_SHIFT_LDO, \ +} + +/* LDOs 1, 2, 8, 15, 17, 27, 30, 35 */ +#define regulator_77802_desc_n_ldo(num, supply, log) { \ + .name = "LDO"#num, \ + .id = MAX77802_LDO##num, \ + .supply_name = "inl"#supply, \ + .ops = &max77802_ldo_ops_logic##log, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = 800000, \ + .uV_step = 25000, \ + .ramp_delay = MAX77802_RAMP_DELAY, \ + .n_voltages = 1 << 6, \ + .vsel_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \ + .vsel_mask = MAX77802_VSEL_MASK, \ + .enable_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \ + .enable_mask = MAX77802_OPMODE_MASK << MAX77802_OPMODE_SHIFT_LDO, \ +} + +/* BUCKs 1, 6 */ +#define regulator_77802_desc_16_buck(num) { \ + .name = "BUCK"#num, \ + .id = MAX77802_BUCK##num, \ + .supply_name = "inb"#num, \ + .ops = &max77802_buck_16_dvs_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = 612500, \ + .uV_step = 6250, \ + .ramp_delay = MAX77802_RAMP_DELAY, \ + .n_voltages = 1 << 8, \ + .vsel_reg = MAX77802_REG_BUCK ## num ## DVS1, \ + .vsel_mask = MAX77802_DVS_VSEL_MASK, \ + .enable_reg = MAX77802_REG_BUCK ## num ## CTRL, \ + .enable_mask = MAX77802_OPMODE_MASK, \ +} + +/* BUCKS 2-4 */ +#define regulator_77802_desc_234_buck(num) { \ + .name = "BUCK"#num, \ + .id = MAX77802_BUCK##num, \ + .supply_name = "inb"#num, \ + .ops = &max77802_buck_dvs_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = 600000, \ + .uV_step = 6250, \ + .ramp_delay = MAX77802_RAMP_DELAY, \ + .n_voltages = 0x91, \ + .vsel_reg = MAX77802_REG_BUCK ## num ## DVS1, \ + .vsel_mask = MAX77802_DVS_VSEL_MASK, \ + .enable_reg = MAX77802_REG_BUCK ## num ## CTRL1, \ + .enable_mask = MAX77802_OPMODE_MASK << \ + MAX77802_OPMODE_BUCK234_SHIFT, \ +} + +/* BUCK 5 */ +#define regulator_77802_desc_buck5(num) { \ + .name = "BUCK"#num, \ + .id = MAX77802_BUCK##num, \ + .supply_name = "inb"#num, \ + .ops = &max77802_buck_dvs_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = 750000, \ + .uV_step = 50000, \ + .ramp_delay = MAX77802_RAMP_DELAY, \ + .n_voltages = 1 << 6, \ + .vsel_reg = MAX77802_REG_BUCK5OUT, \ + .vsel_mask = MAX77802_VSEL_MASK, \ + .enable_reg = MAX77802_REG_BUCK5CTRL, \ + .enable_mask = MAX77802_OPMODE_MASK, \ +} + +/* BUCKs 7-10 */ +#define regulator_77802_desc_buck7_10(num) { \ + .name = "BUCK"#num, \ + .id = MAX77802_BUCK##num, \ + .supply_name = "inb"#num, \ + .ops = &max77802_buck_dvs_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = 750000, \ + .uV_step = 50000, \ + .ramp_delay = MAX77802_RAMP_DELAY, \ + .n_voltages = 1 << 6, \ + .vsel_reg = MAX77802_REG_BUCK7OUT + (num - 7) * 3, \ + .vsel_mask = MAX77802_VSEL_MASK, \ + .enable_reg = MAX77802_REG_BUCK7CTRL + (num - 7) * 3, \ + .enable_mask = MAX77802_OPMODE_MASK, \ +} + +static struct regulator_desc regulators[] = { + regulator_77802_desc_16_buck(1), + regulator_77802_desc_234_buck(2), + regulator_77802_desc_234_buck(3), + regulator_77802_desc_234_buck(4), + regulator_77802_desc_buck5(5), + regulator_77802_desc_16_buck(6), + regulator_77802_desc_buck7_10(7), + regulator_77802_desc_buck7_10(8), + regulator_77802_desc_buck7_10(9), + regulator_77802_desc_buck7_10(10), + regulator_77802_desc_n_ldo(1, 10, 2), + regulator_77802_desc_n_ldo(2, 10, 1), + regulator_77802_desc_p_ldo(3, 3, 2), + regulator_77802_desc_p_ldo(4, 6, 1), + regulator_77802_desc_p_ldo(5, 3, 1), + regulator_77802_desc_p_ldo(6, 3, 1), + regulator_77802_desc_p_ldo(7, 3, 1), + regulator_77802_desc_n_ldo(8, 1, 1), + regulator_77802_desc_p_ldo(9, 5, 1), + regulator_77802_desc_p_ldo(10, 4, 1), + regulator_77802_desc_p_ldo(11, 4, 1), + regulator_77802_desc_p_ldo(12, 9, 1), + regulator_77802_desc_p_ldo(13, 4, 1), + regulator_77802_desc_p_ldo(14, 4, 1), + regulator_77802_desc_n_ldo(15, 1, 1), + regulator_77802_desc_n_ldo(17, 2, 1), + regulator_77802_desc_p_ldo(18, 7, 1), + regulator_77802_desc_p_ldo(19, 5, 1), + regulator_77802_desc_p_ldo(20, 7, 2), + regulator_77802_desc_p_ldo(21, 6, 2), + regulator_77802_desc_p_ldo(23, 9, 1), + regulator_77802_desc_p_ldo(24, 6, 1), + regulator_77802_desc_p_ldo(25, 9, 1), + regulator_77802_desc_p_ldo(26, 9, 1), + regulator_77802_desc_n_ldo(27, 2, 1), + regulator_77802_desc_p_ldo(28, 7, 1), + regulator_77802_desc_p_ldo(29, 7, 1), + regulator_77802_desc_n_ldo(30, 2, 1), + regulator_77802_desc_p_ldo(32, 9, 1), + regulator_77802_desc_p_ldo(33, 6, 1), + regulator_77802_desc_p_ldo(34, 9, 1), + regulator_77802_desc_n_ldo(35, 2, 1), +}; + +#ifdef CONFIG_OF +static int max77802_pmic_dt_parse_pdata(struct platform_device *pdev, + struct max77686_platform_data *pdata) +{ + struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent); + struct device_node *pmic_np, *regulators_np; + struct max77686_regulator_data *rdata; + struct of_regulator_match rmatch; + unsigned int i; + + pmic_np = iodev->dev->of_node; + regulators_np = of_get_child_by_name(pmic_np, "regulators"); + if (!regulators_np) { + dev_err(&pdev->dev, "could not find regulators sub-node\n"); + return -EINVAL; + } + + pdata->num_regulators = ARRAY_SIZE(regulators); + rdata = devm_kzalloc(&pdev->dev, sizeof(*rdata) * + pdata->num_regulators, GFP_KERNEL); + if (!rdata) { + of_node_put(regulators_np); + return -ENOMEM; + } + + for (i = 0; i < pdata->num_regulators; i++) { + rmatch.name = regulators[i].name; + rmatch.init_data = NULL; + rmatch.of_node = NULL; + if (of_regulator_match(&pdev->dev, regulators_np, &rmatch, + 1) != 1) { + dev_warn(&pdev->dev, "No matching regulator for '%s'\n", + rmatch.name); + continue; + } + rdata[i].initdata = rmatch.init_data; + rdata[i].of_node = rmatch.of_node; + rdata[i].id = regulators[i].id; + } + + pdata->regulators = rdata; + of_node_put(regulators_np); + + return 0; +} +#else +static int max77802_pmic_dt_parse_pdata(struct platform_device *pdev, + struct max77686_platform_data *pdata) +{ + return 0; +} +#endif /* CONFIG_OF */ + +static int max77802_pmic_probe(struct platform_device *pdev) +{ + struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent); + struct max77686_platform_data *pdata = dev_get_platdata(iodev->dev); + struct max77802_regulator_prv *max77802; + int i, ret = 0, val; + struct regulator_config config = { }; + + /* This is allocated by the MFD driver */ + if (!pdata) { + dev_err(&pdev->dev, "no platform data found for regulator\n"); + return -ENODEV; + } + + max77802 = devm_kzalloc(&pdev->dev, + sizeof(struct max77802_regulator_prv), + GFP_KERNEL); + if (!max77802) + return -ENOMEM; + + if (iodev->dev->of_node) { + ret = max77802_pmic_dt_parse_pdata(pdev, pdata); + if (ret) + return ret; + } + + config.dev = iodev->dev; + config.regmap = iodev->regmap; + config.driver_data = max77802; + platform_set_drvdata(pdev, max77802); + + for (i = 0; i < MAX77802_REG_MAX; i++) { + struct regulator_dev *rdev; + int id = pdata->regulators[i].id; + int shift = max77802_get_opmode_shift(id); + + config.init_data = pdata->regulators[i].initdata; + config.of_node = pdata->regulators[i].of_node; + + ret = regmap_read(iodev->regmap, regulators[i].enable_reg, &val); + max77802->opmode[id] = val >> shift & MAX77802_OPMODE_MASK; + + rdev = devm_regulator_register(&pdev->dev, + ®ulators[i], &config); + if (IS_ERR(rdev)) { + dev_err(&pdev->dev, + "regulator init failed for %d\n", i); + return PTR_ERR(rdev); + } + } + + return 0; +} + +static const struct platform_device_id max77802_pmic_id[] = { + {"max77802-pmic", 0}, + { }, +}; +MODULE_DEVICE_TABLE(platform, max77802_pmic_id); + +static struct platform_driver max77802_pmic_driver = { + .driver = { + .name = "max77802-pmic", + .owner = THIS_MODULE, + }, + .probe = max77802_pmic_probe, + .id_table = max77802_pmic_id, +}; + +module_platform_driver(max77802_pmic_driver); + +MODULE_DESCRIPTION("MAXIM 77802 Regulator Driver"); +MODULE_AUTHOR("Simon Glass "); +MODULE_LICENSE("GPL"); From 4ece7045eb7cceaff9667b4ee2eec78915d3ee3b Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Mon, 18 Aug 2014 10:32:42 +0200 Subject: [PATCH 16/71] regulator: Add DT bindings for max77802 PMIC regulators Add Device Tree binding documentation for the regulators present in the Maxim 77802 Power Management IC. Signed-off-by: Javier Martinez Canillas Signed-off-by: Mark Brown --- .../bindings/regulator/max77802.txt | 53 +++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/max77802.txt diff --git a/Documentation/devicetree/bindings/regulator/max77802.txt b/Documentation/devicetree/bindings/regulator/max77802.txt new file mode 100644 index 000000000000..5aeaffc0f1f0 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/max77802.txt @@ -0,0 +1,53 @@ +Binding for Maxim MAX77802 regulators + +This is a part of device tree bindings of MAX77802 multi-function device. +More information can be found in bindings/mfd/max77802.txt file. + +The MAX77802 PMIC has 10 high-efficiency Buck and 32 Low-dropout (LDO) +regulators that can be controlled over I2C. + +Following properties should be present in main device node of the MFD chip. + +Optional node: +- regulators : The regulators of max77802 have to be instantiated + under subnode named "regulators" using the following format. + + regulator-name { + standard regulator constraints.... + }; + refer Documentation/devicetree/bindings/regulator/regulator.txt + +The regulator node name should be initialized with a string to get matched +with their hardware counterparts as follow. The valid names are: + + -LDOn : for LDOs, where n can lie in ranges 1-15, 17-21, 23-30 + and 32-35. + example: LDO1, LDO2, LDO35. + -BUCKn : for BUCKs, where n can lie in range 1 to 10. + example: BUCK1, BUCK5, BUCK10. +Example: + + max77802@09 { + compatible = "maxim,max77802"; + interrupt-parent = <&wakeup_eint>; + interrupts = <26 0>; + reg = <0x09>; + #address-cells = <1>; + #size-cells = <0>; + + regulators { + ldo11_reg: LDO11 { + regulator-name = "vdd_ldo11"; + regulator-min-microvolt = <1900000>; + regulator-max-microvolt = <1900000>; + regulator-always-on; + }; + + buck1_reg: BUCK1 { + regulator-name = "vdd_mif"; + regulator-min-microvolt = <950000>; + regulator-max-microvolt = <1300000>; + regulator-always-on; + regulator-boot-on; + }; + }; From 39f5460d7f9cc57d3dd745301bf60ca5d65a6e7b Mon Sep 17 00:00:00 2001 From: Guodong Xu Date: Tue, 19 Aug 2014 18:07:41 +0800 Subject: [PATCH 17/71] regulator: core: add const to regulator_ops and fix build error in mc13892 Commit 272e2315fac3 ("regulator: core: add const qualifier to ops in struct regulator_desc") introduced const qualifier to ops in regulator_desc. This patch adds 'const' to regulator_ops vars in newly added core APIs for v3.17-rc1: - regulator_get_hardware_vsel_register() - regulator_list_hardware_vsel() This patch also fix a build error in mc13892-regulator.c due to const regulator_desc.ops. Modification of regulator_desc.ops' member fields is not allowed. Signed-off-by: Guodong Xu Signed-off-by: Mark Brown --- drivers/regulator/core.c | 8 ++++---- drivers/regulator/mc13892-regulator.c | 11 +++++++---- 2 files changed, 11 insertions(+), 8 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 1e976b6320a2..7bce7158d7e6 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2307,8 +2307,8 @@ int regulator_get_hardware_vsel_register(struct regulator *regulator, unsigned *vsel_reg, unsigned *vsel_mask) { - struct regulator_dev *rdev = regulator->rdev; - struct regulator_ops *ops = rdev->desc->ops; + struct regulator_dev *rdev = regulator->rdev; + const struct regulator_ops *ops = rdev->desc->ops; if (ops->set_voltage_sel != regulator_set_voltage_sel_regmap) return -EOPNOTSUPP; @@ -2334,8 +2334,8 @@ EXPORT_SYMBOL_GPL(regulator_get_hardware_vsel_register); int regulator_list_hardware_vsel(struct regulator *regulator, unsigned selector) { - struct regulator_dev *rdev = regulator->rdev; - struct regulator_ops *ops = rdev->desc->ops; + struct regulator_dev *rdev = regulator->rdev; + const struct regulator_ops *ops = rdev->desc->ops; if (selector >= rdev->desc->n_voltages) return -EINVAL; diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c index f374fa57220f..793b662a1967 100644 --- a/drivers/regulator/mc13892-regulator.c +++ b/drivers/regulator/mc13892-regulator.c @@ -526,6 +526,7 @@ static unsigned int mc13892_vcam_get_mode(struct regulator_dev *rdev) return REGULATOR_MODE_NORMAL; } +static struct regulator_ops mc13892_vcam_ops; static int mc13892_regulator_probe(struct platform_device *pdev) { @@ -582,10 +583,12 @@ static int mc13892_regulator_probe(struct platform_device *pdev) } mc13xxx_unlock(mc13892); - mc13892_regulators[MC13892_VCAM].desc.ops->set_mode - = mc13892_vcam_set_mode; - mc13892_regulators[MC13892_VCAM].desc.ops->get_mode - = mc13892_vcam_get_mode; + /* update mc13892_vcam ops */ + memcpy(&mc13892_vcam_ops, mc13892_regulators[MC13892_VCAM].desc.ops, + sizeof(struct regulator_ops)); + mc13892_vcam_ops.set_mode = mc13892_vcam_set_mode, + mc13892_vcam_ops.get_mode = mc13892_vcam_get_mode, + mc13892_regulators[MC13892_VCAM].desc.ops = &mc13892_vcam_ops; mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13892_regulators, ARRAY_SIZE(mc13892_regulators)); From ea62f4dfe329094cd988a73fe854c6f2e92dd486 Mon Sep 17 00:00:00 2001 From: Guodong Xu Date: Tue, 19 Aug 2014 18:07:42 +0800 Subject: [PATCH 18/71] regulator: hi6421: style fix, else with a single return is not required style fix for warnings. 'else' with a single 'return' is usually not required. Signed-off-by: Guodong Xu Signed-off-by: Mark Brown --- drivers/regulator/hi6421-regulator.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/regulator/hi6421-regulator.c b/drivers/regulator/hi6421-regulator.c index b40851eb5466..b0de92bee4a2 100644 --- a/drivers/regulator/hi6421-regulator.c +++ b/drivers/regulator/hi6421-regulator.c @@ -435,8 +435,8 @@ static unsigned int hi6421_regulator_ldo_get_mode(struct regulator_dev *rdev) regmap_read(rdev->regmap, rdev->desc->enable_reg, ®_val); if (reg_val & info->mode_mask) return REGULATOR_MODE_IDLE; - else - return REGULATOR_MODE_NORMAL; + + return REGULATOR_MODE_NORMAL; } static unsigned int hi6421_regulator_buck_get_mode(struct regulator_dev *rdev) @@ -447,8 +447,8 @@ static unsigned int hi6421_regulator_buck_get_mode(struct regulator_dev *rdev) regmap_read(rdev->regmap, rdev->desc->enable_reg, ®_val); if (reg_val & info->mode_mask) return REGULATOR_MODE_STANDBY; - else - return REGULATOR_MODE_NORMAL; + + return REGULATOR_MODE_NORMAL; } static int hi6421_regulator_ldo_set_mode(struct regulator_dev *rdev, @@ -506,8 +506,8 @@ unsigned int hi6421_regulator_ldo_get_optimum_mode(struct regulator_dev *rdev, if (load_uA > info->eco_microamp) return REGULATOR_MODE_NORMAL; - else - return REGULATOR_MODE_IDLE; + + return REGULATOR_MODE_IDLE; } static const struct regulator_ops hi6421_ldo_ops = { From 29b9c318025bece77d019eada2dee856e3ca50b2 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 20 Aug 2014 10:04:17 +0800 Subject: [PATCH 19/71] regulator: max77802: Remove unused fields from struct max77802_regulator_prv Both num_regulators and *rdev[MAX77802_REG_MAX] are not used, remove them. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/max77802.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/regulator/max77802.c b/drivers/regulator/max77802.c index 5f022f859d49..ad1caa902ef0 100644 --- a/drivers/regulator/max77802.c +++ b/drivers/regulator/max77802.c @@ -65,8 +65,6 @@ static unsigned int ramp_table_77802_4bit[] = { }; struct max77802_regulator_prv { - int num_regulators; - struct regulator_dev *rdev[MAX77802_REG_MAX]; unsigned int opmode[MAX77802_REG_MAX]; }; From 2cd64ae3d57b80f6d93682b98a59ed4b124cf2ef Mon Sep 17 00:00:00 2001 From: Chris Zhong Date: Wed, 20 Aug 2014 11:36:42 +0800 Subject: [PATCH 20/71] regulator: RK808: Add regulator driver for RK808 The regulator module consists of 4 DCDCs, 8 LDOs and 2 switches. The output voltages are configurable and are meant to supply power to the main processor and other components Signed-off-by: Chris Zhong Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 10 + drivers/regulator/Makefile | 1 + drivers/regulator/rk808-regulator.c | 410 ++++++++++++++++++++++++++++ 3 files changed, 421 insertions(+) create mode 100644 drivers/regulator/rk808-regulator.c diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 2dc8289e5dba..fb32babf756e 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -459,6 +459,16 @@ config REGULATOR_RC5T583 through regulator interface. The device supports multiple DCDC/LDO outputs which can be controlled by i2c communication. +config REGULATOR_RK808 + tristate "Rockchip RK808 Power regulators" + depends on MFD_RK808 + help + Select this option to enable the power regulator of ROCKCHIP + PMIC RK808. + This driver supports the control of different power rails of device + through regulator interface. The device supports multiple DCDC/LDO + outputs which can be controlled by i2c communication. + config REGULATOR_S2MPA01 tristate "Samsung S2MPA01 voltage regulator" depends on MFD_SEC_CORE diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index aa4a6aa7b558..236fdbb2b786 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -62,6 +62,7 @@ obj-$(CONFIG_REGULATOR_PBIAS) += pbias-regulator.o obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o obj-$(CONFIG_REGULATOR_RC5T583) += rc5t583-regulator.o +obj-$(CONFIG_REGULATOR_RK808) += rk808-regulator.o obj-$(CONFIG_REGULATOR_S2MPA01) += s2mpa01.o obj-$(CONFIG_REGULATOR_S2MPS11) += s2mps11.o obj-$(CONFIG_REGULATOR_S5M8767) += s5m8767.o diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c new file mode 100644 index 000000000000..94753fd311c1 --- /dev/null +++ b/drivers/regulator/rk808-regulator.c @@ -0,0 +1,410 @@ +/* + * Regulator driver for Rockchip RK808 + * + * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd + * + * Author: Chris Zhong + * Author: Zhang Qing + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +/* + * Field Definitions. + */ +#define RK808_BUCK_VSEL_MASK 0x3f +#define RK808_BUCK4_VSEL_MASK 0xf +#define RK808_LDO_VSEL_MASK 0x1f + +static const int buck_set_vol_base_addr[] = { + RK808_BUCK1_ON_VSEL_REG, + RK808_BUCK2_ON_VSEL_REG, + RK808_BUCK3_CONFIG_REG, + RK808_BUCK4_ON_VSEL_REG, +}; + +static const int buck_contr_base_addr[] = { + RK808_BUCK1_CONFIG_REG, + RK808_BUCK2_CONFIG_REG, + RK808_BUCK3_CONFIG_REG, + RK808_BUCK4_CONFIG_REG, +}; + +#define rk808_BUCK_SET_VOL_REG(x) (buck_set_vol_base_addr[x]) +#define rk808_BUCK_CONTR_REG(x) (buck_contr_base_addr[x]) +#define rk808_LDO_SET_VOL_REG(x) (ldo_set_vol_base_addr[x]) + +static const int ldo_set_vol_base_addr[] = { + RK808_LDO1_ON_VSEL_REG, + RK808_LDO2_ON_VSEL_REG, + RK808_LDO3_ON_VSEL_REG, + RK808_LDO4_ON_VSEL_REG, + RK808_LDO5_ON_VSEL_REG, + RK808_LDO6_ON_VSEL_REG, + RK808_LDO7_ON_VSEL_REG, + RK808_LDO8_ON_VSEL_REG, +}; + +/* + * rk808 voltage number + */ +static const struct regulator_linear_range rk808_buck_voltage_ranges[] = { + REGULATOR_LINEAR_RANGE(700000, 0, 63, 12500), +}; + +static const struct regulator_linear_range rk808_buck4_voltage_ranges[] = { + REGULATOR_LINEAR_RANGE(1800000, 0, 15, 100000), +}; + +static const struct regulator_linear_range rk808_ldo_voltage_ranges[] = { + REGULATOR_LINEAR_RANGE(1800000, 0, 16, 100000), +}; + +static const struct regulator_linear_range rk808_ldo3_voltage_ranges[] = { + REGULATOR_LINEAR_RANGE(800000, 0, 13, 100000), + REGULATOR_LINEAR_RANGE(2500000, 15, 15, 0), +}; + +static const struct regulator_linear_range rk808_ldo6_voltage_ranges[] = { + REGULATOR_LINEAR_RANGE(800000, 0, 17, 100000), +}; + +static struct regulator_ops rk808_reg_ops = { + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +static struct regulator_ops rk808_switch_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +static const struct regulator_desc rk808_reg[] = { + { + .name = "DCDC_REG1", + .id = RK808_ID_DCDC1, + .ops = &rk808_reg_ops, + .type = REGULATOR_VOLTAGE, + .n_voltages = 64, + .linear_ranges = rk808_buck_voltage_ranges, + .n_linear_ranges = ARRAY_SIZE(rk808_buck_voltage_ranges), + .vsel_reg = RK808_BUCK1_ON_VSEL_REG, + .vsel_mask = RK808_BUCK_VSEL_MASK, + .enable_reg = RK808_DCDC_EN_REG, + .enable_mask = BIT(0), + .owner = THIS_MODULE, + }, { + .name = "DCDC_REG2", + .id = RK808_ID_DCDC2, + .ops = &rk808_reg_ops, + .type = REGULATOR_VOLTAGE, + .n_voltages = 64, + .linear_ranges = rk808_buck_voltage_ranges, + .n_linear_ranges = ARRAY_SIZE(rk808_buck_voltage_ranges), + .vsel_reg = RK808_BUCK2_ON_VSEL_REG, + .vsel_mask = RK808_BUCK_VSEL_MASK, + .enable_reg = RK808_DCDC_EN_REG, + .enable_mask = BIT(1), + .owner = THIS_MODULE, + }, { + .name = "DCDC_REG3", + .id = RK808_ID_DCDC3, + .ops = &rk808_switch_ops, + .type = REGULATOR_VOLTAGE, + .n_voltages = 1, + .enable_reg = RK808_DCDC_EN_REG, + .enable_mask = BIT(2), + .owner = THIS_MODULE, + }, { + .name = "DCDC_REG4", + .id = RK808_ID_DCDC4, + .ops = &rk808_reg_ops, + .type = REGULATOR_VOLTAGE, + .n_voltages = 17, + .linear_ranges = rk808_buck4_voltage_ranges, + .n_linear_ranges = ARRAY_SIZE(rk808_buck4_voltage_ranges), + .vsel_reg = RK808_BUCK4_ON_VSEL_REG, + .vsel_mask = RK808_BUCK4_VSEL_MASK, + .enable_reg = RK808_DCDC_EN_REG, + .enable_mask = BIT(3), + .owner = THIS_MODULE, + }, { + .name = "LDO_REG1", + .id = RK808_ID_LDO1, + .ops = &rk808_reg_ops, + .type = REGULATOR_VOLTAGE, + .n_voltages = 17, + .linear_ranges = rk808_ldo_voltage_ranges, + .n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges), + .vsel_reg = RK808_LDO1_ON_VSEL_REG, + .vsel_mask = RK808_LDO_VSEL_MASK, + .enable_reg = RK808_LDO_EN_REG, + .enable_mask = BIT(0), + .owner = THIS_MODULE, + }, { + .name = "LDO_REG2", + .id = RK808_ID_LDO2, + .ops = &rk808_reg_ops, + .type = REGULATOR_VOLTAGE, + .n_voltages = 17, + .linear_ranges = rk808_ldo_voltage_ranges, + .n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges), + .vsel_reg = RK808_LDO2_ON_VSEL_REG, + .vsel_mask = RK808_LDO_VSEL_MASK, + .enable_reg = RK808_LDO_EN_REG, + .enable_mask = BIT(1), + .owner = THIS_MODULE, + }, { + .name = "LDO_REG3", + .id = RK808_ID_LDO3, + .ops = &rk808_reg_ops, + .type = REGULATOR_VOLTAGE, + .n_voltages = 16, + .linear_ranges = rk808_ldo3_voltage_ranges, + .n_linear_ranges = ARRAY_SIZE(rk808_ldo3_voltage_ranges), + .vsel_reg = RK808_LDO3_ON_VSEL_REG, + .vsel_mask = RK808_BUCK4_VSEL_MASK, + .enable_reg = RK808_LDO_EN_REG, + .enable_mask = BIT(2), + .owner = THIS_MODULE, + }, { + .name = "LDO_REG4", + .id = RK808_ID_LDO4, + .ops = &rk808_reg_ops, + .type = REGULATOR_VOLTAGE, + .n_voltages = 17, + .linear_ranges = rk808_ldo_voltage_ranges, + .n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges), + .vsel_reg = RK808_LDO4_ON_VSEL_REG, + .vsel_mask = RK808_LDO_VSEL_MASK, + .enable_reg = RK808_LDO_EN_REG, + .enable_mask = BIT(3), + .owner = THIS_MODULE, + }, { + .name = "LDO_REG5", + .id = RK808_ID_LDO5, + .ops = &rk808_reg_ops, + .type = REGULATOR_VOLTAGE, + .n_voltages = 17, + .linear_ranges = rk808_ldo_voltage_ranges, + .n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges), + .vsel_reg = RK808_LDO5_ON_VSEL_REG, + .vsel_mask = RK808_LDO_VSEL_MASK, + .enable_reg = RK808_LDO_EN_REG, + .enable_mask = BIT(4), + .owner = THIS_MODULE, + }, { + .name = "LDO_REG6", + .id = RK808_ID_LDO6, + .ops = &rk808_reg_ops, + .type = REGULATOR_VOLTAGE, + .n_voltages = 18, + .linear_ranges = rk808_ldo6_voltage_ranges, + .n_linear_ranges = ARRAY_SIZE(rk808_ldo6_voltage_ranges), + .vsel_reg = RK808_LDO6_ON_VSEL_REG, + .vsel_mask = RK808_LDO_VSEL_MASK, + .enable_reg = RK808_LDO_EN_REG, + .enable_mask = BIT(5), + .owner = THIS_MODULE, + }, { + .name = "LDO_REG7", + .id = RK808_ID_LDO7, + .ops = &rk808_reg_ops, + .type = REGULATOR_VOLTAGE, + .n_voltages = 18, + .linear_ranges = rk808_ldo6_voltage_ranges, + .n_linear_ranges = ARRAY_SIZE(rk808_ldo6_voltage_ranges), + .vsel_reg = RK808_LDO7_ON_VSEL_REG, + .vsel_mask = RK808_LDO_VSEL_MASK, + .enable_reg = RK808_LDO_EN_REG, + .enable_mask = BIT(6), + .owner = THIS_MODULE, + }, { + .name = "LDO_REG8", + .id = RK808_ID_LDO8, + .ops = &rk808_reg_ops, + .type = REGULATOR_VOLTAGE, + .n_voltages = 17, + .linear_ranges = rk808_ldo_voltage_ranges, + .n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges), + .vsel_reg = RK808_LDO8_ON_VSEL_REG, + .vsel_mask = RK808_LDO_VSEL_MASK, + .enable_reg = RK808_LDO_EN_REG, + .enable_mask = BIT(7), + .owner = THIS_MODULE, + }, { + .name = "SWITCH_REG1", + .id = RK808_ID_SWITCH1, + .ops = &rk808_switch_ops, + .type = REGULATOR_VOLTAGE, + .enable_reg = RK808_DCDC_EN_REG, + .enable_mask = BIT(5), + .owner = THIS_MODULE, + }, { + .name = "SWITCH_REG2", + .id = RK808_ID_SWITCH2, + .ops = &rk808_switch_ops, + .type = REGULATOR_VOLTAGE, + .enable_reg = RK808_DCDC_EN_REG, + .enable_mask = BIT(6), + .owner = THIS_MODULE, + }, +}; + +static struct of_regulator_match rk808_reg_matches[] = { + [RK808_ID_DCDC1] = { .name = "DCDC_REG1" }, + [RK808_ID_DCDC2] = { .name = "DCDC_REG2" }, + [RK808_ID_DCDC3] = { .name = "DCDC_REG3" }, + [RK808_ID_DCDC4] = { .name = "DCDC_REG4" }, + [RK808_ID_LDO1] = { .name = "LDO_REG1" }, + [RK808_ID_LDO2] = { .name = "LDO_REG2" }, + [RK808_ID_LDO3] = { .name = "LDO_REG3" }, + [RK808_ID_LDO4] = { .name = "LDO_REG4" }, + [RK808_ID_LDO5] = { .name = "LDO_REG5" }, + [RK808_ID_LDO6] = { .name = "LDO_REG6" }, + [RK808_ID_LDO7] = { .name = "LDO_REG7" }, + [RK808_ID_LDO8] = { .name = "LDO_REG8" }, + [RK808_ID_SWITCH1] = { .name = "SWITCH_REG1" }, + [RK808_ID_SWITCH2] = { .name = "SWITCH_REG2" }, +}; + +static int rk808_regulator_dts(struct rk808 *rk808) +{ + struct rk808_board *pdata = rk808->pdata; + struct device_node *np, *reg_np; + int i, ret; + + np = rk808->dev->of_node; + if (!np) { + dev_err(rk808->dev, "could not find pmic sub-node\n"); + return -ENXIO; + } + + reg_np = of_get_child_by_name(np, "regulators"); + if (!reg_np) + return -ENXIO; + + ret = of_regulator_match(rk808->dev, reg_np, rk808_reg_matches, + RK808_NUM_REGULATORS); + if (ret < 0) { + dev_err(rk808->dev, + "failed to parse regulator data: %d\n", ret); + return ret; + } + + for (i = 0; i < RK808_NUM_REGULATORS; i++) { + if (!rk808_reg_matches[i].init_data || + !rk808_reg_matches[i].of_node) + continue; + + pdata->rk808_init_data[i] = rk808_reg_matches[i].init_data; + pdata->of_node[i] = rk808_reg_matches[i].of_node; + } + + return 0; +} + +static int rk808_regulator_probe(struct platform_device *pdev) +{ + struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent); + struct rk808_board *pdata; + struct regulator_config config; + struct regulator_dev *rk808_rdev; + struct regulator_init_data *reg_data; + int i = 0; + int ret = 0; + + dev_dbg(rk808->dev, "%s\n", __func__); + + if (!rk808) { + dev_err(rk808->dev, "%s no rk808\n", __func__); + return -ENODEV; + } + + pdata = rk808->pdata; + if (!pdata) { + dev_warn(rk808->dev, "%s no pdata, create it\n", __func__); + pdata = devm_kzalloc(rk808->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + } + + ret = rk808_regulator_dts(rk808); + if (ret) + return ret; + + rk808->num_regulators = RK808_NUM_REGULATORS; + rk808->rdev = devm_kzalloc(&pdev->dev, RK808_NUM_REGULATORS * + sizeof(struct regulator_dev *), GFP_KERNEL); + if (!rk808->rdev) + return -ENOMEM; + + /* Instantiate the regulators */ + for (i = 0; i < RK808_NUM_REGULATORS; i++) { + reg_data = pdata->rk808_init_data[i]; + if (!reg_data) + continue; + + config.dev = rk808->dev; + config.driver_data = rk808; + config.regmap = rk808->regmap; + + if (rk808->dev->of_node) + config.of_node = pdata->of_node[i]; + + reg_data->supply_regulator = rk808_reg[i].name; + config.init_data = reg_data; + + rk808_rdev = devm_regulator_register(&pdev->dev, + &rk808_reg[i], &config); + if (IS_ERR(rk808_rdev)) { + dev_err(rk808->dev, + "failed to register %d regulator\n", i); + return PTR_ERR(rk808_rdev); + } + rk808->rdev[i] = rk808_rdev; + } + return 0; +} + +static struct platform_driver rk808_regulator_driver = { + .probe = rk808_regulator_probe, + .driver = { + .name = "rk808-regulator", + .owner = THIS_MODULE, + }, +}; + +module_platform_driver(rk808_regulator_driver); + +MODULE_DESCRIPTION("regulator driver for the rk808 series PMICs"); +MODULE_AUTHOR("Chris Zhong"); +MODULE_AUTHOR("Zhang Qing"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:rk808-regulator"); From df11e506d330d9a0e5a701cd2c5fcb7d461b6060 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 21 Aug 2014 10:11:34 +0800 Subject: [PATCH 21/71] regulator: core: Add back the const qualifier for ops of struct regulator_desc Fix below build warning: CC [M] drivers/regulator/hi6421-regulator.o drivers/regulator/hi6421-regulator.c:356:2: warning: initialization discards 'const' qualifier from pointer target type [enabled by default] This is a revert of commit 716845ebeb50 ("regulator: core: Fix build error due to const qualifier for ops"). The build error was fixed by commit 39f5460d7f9c ("regulator: core: add const to regulator_ops and fix build error in mc13892"). Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- include/linux/regulator/driver.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index 3abda7554d82..efe058f8f746 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -246,7 +246,7 @@ struct regulator_desc { int id; bool continuous_voltage_range; unsigned n_voltages; - struct regulator_ops *ops; + const struct regulator_ops *ops; int irq; enum regulator_type type; struct module *owner; From 8e820007caed7a03634fb14835a59bd0a232894d Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 21 Aug 2014 10:31:33 +0800 Subject: [PATCH 22/71] regulator: hi6421: Remove unused fields from struct hi6421_regulator_info The valid_modes_mask and *dev are not used in this driver, remove them. Current code uses devm_regulator_register, so we don't need *regulator in hi6421_regulator_info. Use a local variable instead. Also removes a few unnecessary inclusion of header files. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/hi6421-regulator.c | 31 ++++------------------------ 1 file changed, 4 insertions(+), 27 deletions(-) diff --git a/drivers/regulator/hi6421-regulator.c b/drivers/regulator/hi6421-regulator.c index b0de92bee4a2..e3899201cd7e 100644 --- a/drivers/regulator/hi6421-regulator.c +++ b/drivers/regulator/hi6421-regulator.c @@ -17,19 +17,13 @@ #include #include #include -#include -#include #include #include -#include -#include #include #include #include #include #include -#include -#include /* * struct hi6421_regulator_pdata - Hi6421 regulator data of platform device @@ -41,20 +35,14 @@ struct hi6421_regulator_pdata { /* * struct hi6421_regulator_info - hi6421 regulator information - * @dev: device pointer * @desc: regulator description - * @regulator: regulator device * @mode_mask: ECO mode bitmask of LDOs; for BUCKs, this masks sleep * @eco_microamp: eco mode load upper limit (in mA), valid for LDOs only - * @valid_modes_mask: valid operating modes */ struct hi6421_regulator_info { - struct device *dev; struct regulator_desc desc; - struct regulator_dev *regulator; u8 mode_mask; u32 eco_microamp; - unsigned int valid_modes_mask; }; /* HI6421 regulators */ @@ -198,8 +186,6 @@ static const struct regulator_ops hi6421_buck345_ops; }, \ .mode_mask = ecomask, \ .eco_microamp = ecoamp, \ - .valid_modes_mask = (REGULATOR_MODE_NORMAL \ - | REGULATOR_MODE_IDLE), \ } /* HI6421 LDO1~3 are linear voltage regulators at fixed uV_step @@ -237,8 +223,6 @@ static const struct regulator_ops hi6421_buck345_ops; }, \ .mode_mask = ecomask, \ .eco_microamp = ecoamp, \ - .valid_modes_mask = (REGULATOR_MODE_NORMAL \ - | REGULATOR_MODE_IDLE), \ } /* HI6421 LDOAUDIO is a linear voltage regulator with two 4-step ranges @@ -276,8 +260,6 @@ static const struct regulator_ops hi6421_buck345_ops; }, \ .mode_mask = ecomask, \ .eco_microamp = ecoamp, \ - .valid_modes_mask = (REGULATOR_MODE_NORMAL \ - | REGULATOR_MODE_IDLE), \ } /* HI6421 BUCK0/1/2 are linear voltage regulators at fixed uV_step @@ -311,8 +293,6 @@ static const struct regulator_ops hi6421_buck345_ops; .off_on_delay = odelay, \ }, \ .mode_mask = sleepmask, \ - .valid_modes_mask = (REGULATOR_MODE_NORMAL \ - | REGULATOR_MODE_STANDBY), \ } /* HI6421 BUCK3/4/5 share similar configurations as LDOs, with exception @@ -346,8 +326,6 @@ static const struct regulator_ops hi6421_buck345_ops; .off_on_delay = odelay, \ }, \ .mode_mask = sleepmask, \ - .valid_modes_mask = (REGULATOR_MODE_NORMAL \ - | REGULATOR_MODE_STANDBY), \ } /* HI6421 regulator information */ @@ -580,10 +558,10 @@ static int hi6421_regulator_register(struct platform_device *pdev, { struct hi6421_regulator_info *info = NULL; struct regulator_config config = { }; + struct regulator_dev *rdev; /* assign per-regulator data */ info = &hi6421_regulator_info[id]; - info->dev = &pdev->dev; config.dev = &pdev->dev; config.init_data = init_data; @@ -592,12 +570,11 @@ static int hi6421_regulator_register(struct platform_device *pdev, config.of_node = np; /* register regulator with framework */ - info->regulator = devm_regulator_register(&pdev->dev, &info->desc, - &config); - if (IS_ERR(info->regulator)) { + rdev = devm_regulator_register(&pdev->dev, &info->desc, &config); + if (IS_ERR(rdev)) { dev_err(&pdev->dev, "failed to register regulator %s\n", info->desc.name); - return PTR_ERR(info->regulator); + return PTR_ERR(rdev); } return 0; From 462004f1215ccb77969004a049aa5437f34c9b06 Mon Sep 17 00:00:00 2001 From: Doug Anderson Date: Thu, 21 Aug 2014 17:54:55 -0700 Subject: [PATCH 23/71] regulator: rk808: Fix uninitialized value The RK808 regulator driver was putting its config on the stack but not initting it. That means that you got a semi-random config. Fix this. Signed-off-by: Doug Anderson Signed-off-by: Mark Brown --- drivers/regulator/rk808-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c index 94753fd311c1..4d5041ceb56a 100644 --- a/drivers/regulator/rk808-regulator.c +++ b/drivers/regulator/rk808-regulator.c @@ -334,7 +334,7 @@ static int rk808_regulator_probe(struct platform_device *pdev) { struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent); struct rk808_board *pdata; - struct regulator_config config; + struct regulator_config config = {}; struct regulator_dev *rk808_rdev; struct regulator_init_data *reg_data; int i = 0; From d76c333e9fe2d269c54f68747b2311a5657276e5 Mon Sep 17 00:00:00 2001 From: Chris Zhong Date: Mon, 25 Aug 2014 21:37:06 +0800 Subject: [PATCH 24/71] regulator: RK808: modify for struct rk808 change The "dev" has been deleted from "struct rk808" in rk808 mfd driver so rk808->dev should be replaced by &client->dev here. Signed-off-by: Chris Zhong Signed-off-by: Mark Brown --- drivers/regulator/rk808-regulator.c | 34 ++++++++++++----------------- 1 file changed, 14 insertions(+), 20 deletions(-) diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c index 4d5041ceb56a..f00d6d89c7f4 100644 --- a/drivers/regulator/rk808-regulator.c +++ b/drivers/regulator/rk808-regulator.c @@ -296,13 +296,14 @@ static struct of_regulator_match rk808_reg_matches[] = { static int rk808_regulator_dts(struct rk808 *rk808) { - struct rk808_board *pdata = rk808->pdata; struct device_node *np, *reg_np; + struct i2c_client *client = rk808->i2c; + struct rk808_board *pdata = rk808->pdata; int i, ret; - np = rk808->dev->of_node; + np = client->dev.of_node; if (!np) { - dev_err(rk808->dev, "could not find pmic sub-node\n"); + dev_err(&client->dev, "could not find pmic sub-node\n"); return -ENXIO; } @@ -310,10 +311,10 @@ static int rk808_regulator_dts(struct rk808 *rk808) if (!reg_np) return -ENXIO; - ret = of_regulator_match(rk808->dev, reg_np, rk808_reg_matches, + ret = of_regulator_match(&client->dev, reg_np, rk808_reg_matches, RK808_NUM_REGULATORS); - if (ret < 0) { - dev_err(rk808->dev, + if (ret < 0) { + dev_err(&client->dev, "failed to parse regulator data: %d\n", ret); return ret; } @@ -333,24 +334,17 @@ static int rk808_regulator_dts(struct rk808 *rk808) static int rk808_regulator_probe(struct platform_device *pdev) { struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent); - struct rk808_board *pdata; + struct i2c_client *client = rk808->i2c; + struct rk808_board *pdata = rk808->pdata; struct regulator_config config = {}; struct regulator_dev *rk808_rdev; struct regulator_init_data *reg_data; int i = 0; int ret = 0; - dev_dbg(rk808->dev, "%s\n", __func__); - - if (!rk808) { - dev_err(rk808->dev, "%s no rk808\n", __func__); - return -ENODEV; - } - - pdata = rk808->pdata; if (!pdata) { - dev_warn(rk808->dev, "%s no pdata, create it\n", __func__); - pdata = devm_kzalloc(rk808->dev, sizeof(*pdata), GFP_KERNEL); + dev_warn(&client->dev, "%s no pdata, create it\n", __func__); + pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) return -ENOMEM; } @@ -371,11 +365,11 @@ static int rk808_regulator_probe(struct platform_device *pdev) if (!reg_data) continue; - config.dev = rk808->dev; + config.dev = &client->dev; config.driver_data = rk808; config.regmap = rk808->regmap; - if (rk808->dev->of_node) + if (client->dev.of_node) config.of_node = pdata->of_node[i]; reg_data->supply_regulator = rk808_reg[i].name; @@ -384,7 +378,7 @@ static int rk808_regulator_probe(struct platform_device *pdev) rk808_rdev = devm_regulator_register(&pdev->dev, &rk808_reg[i], &config); if (IS_ERR(rk808_rdev)) { - dev_err(rk808->dev, + dev_err(&client->dev, "failed to register %d regulator\n", i); return PTR_ERR(rk808_rdev); } From 2a8d1303c6618f44e7603a4625783d1aff5fef4a Mon Sep 17 00:00:00 2001 From: Chris Zhong Date: Tue, 26 Aug 2014 22:18:57 +0800 Subject: [PATCH 25/71] regulator: rk808: remove redundant code remove the redundant code, since pdata has been removed from stuct rk808 Signed-off-by: Chris Zhong Signed-off-by: Mark Brown --- drivers/regulator/rk808-regulator.c | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c index f00d6d89c7f4..f42952ead1bd 100644 --- a/drivers/regulator/rk808-regulator.c +++ b/drivers/regulator/rk808-regulator.c @@ -294,11 +294,10 @@ static struct of_regulator_match rk808_reg_matches[] = { [RK808_ID_SWITCH2] = { .name = "SWITCH_REG2" }, }; -static int rk808_regulator_dts(struct rk808 *rk808) +static int rk808_regulator_dts(struct i2c_client *client, + struct rk808_board *pdata) { struct device_node *np, *reg_np; - struct i2c_client *client = rk808->i2c; - struct rk808_board *pdata = rk808->pdata; int i, ret; np = client->dev.of_node; @@ -335,7 +334,7 @@ static int rk808_regulator_probe(struct platform_device *pdev) { struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent); struct i2c_client *client = rk808->i2c; - struct rk808_board *pdata = rk808->pdata; + struct rk808_board *pdata = dev_get_platdata(&client->dev); struct regulator_config config = {}; struct regulator_dev *rk808_rdev; struct regulator_init_data *reg_data; @@ -343,22 +342,15 @@ static int rk808_regulator_probe(struct platform_device *pdev) int ret = 0; if (!pdata) { - dev_warn(&client->dev, "%s no pdata, create it\n", __func__); pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) return -ENOMEM; } - ret = rk808_regulator_dts(rk808); + ret = rk808_regulator_dts(client, pdata); if (ret) return ret; - rk808->num_regulators = RK808_NUM_REGULATORS; - rk808->rdev = devm_kzalloc(&pdev->dev, RK808_NUM_REGULATORS * - sizeof(struct regulator_dev *), GFP_KERNEL); - if (!rk808->rdev) - return -ENOMEM; - /* Instantiate the regulators */ for (i = 0; i < RK808_NUM_REGULATORS; i++) { reg_data = pdata->rk808_init_data[i]; @@ -382,7 +374,6 @@ static int rk808_regulator_probe(struct platform_device *pdev) "failed to register %d regulator\n", i); return PTR_ERR(rk808_rdev); } - rk808->rdev[i] = rk808_rdev; } return 0; } From bf3baca6c54ce8a2f51687296f868dfe20d33f13 Mon Sep 17 00:00:00 2001 From: James Ban Date: Wed, 27 Aug 2014 11:47:07 +0900 Subject: [PATCH 26/71] regulator: da9211: support device tree This is a patch for supporting device tree of DA9211/DA9213. Signed-off-by: James Ban Signed-off-by: Mark Brown --- .../devicetree/bindings/regulator/da9211.txt | 63 ++++++++++++++ drivers/regulator/da9211-regulator.c | 85 +++++++++++++++++-- include/linux/regulator/da9211.h | 2 +- 3 files changed, 142 insertions(+), 8 deletions(-) create mode 100644 Documentation/devicetree/bindings/regulator/da9211.txt diff --git a/Documentation/devicetree/bindings/regulator/da9211.txt b/Documentation/devicetree/bindings/regulator/da9211.txt new file mode 100644 index 000000000000..240019a82f9a --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/da9211.txt @@ -0,0 +1,63 @@ +* Dialog Semiconductor DA9211/DA9213 Voltage Regulator + +Required properties: +- compatible: "dlg,da9211" or "dlg,da9213". +- reg: I2C slave address, usually 0x68. +- interrupts: the interrupt outputs of the controller +- regulators: A node that houses a sub-node for each regulator within the + device. Each sub-node is identified using the node's name, with valid + values listed below. The content of each sub-node is defined by the + standard binding for regulators; see regulator.txt. + BUCKA and BUCKB. + +Optional properties: +- Any optional property defined in regulator.txt + +Example 1) DA9211 + + pmic: da9211@68 { + compatible = "dlg,da9211"; + reg = <0x68>; + interrupts = <3 27>; + + regulators { + BUCKA { + regulator-name = "VBUCKA"; + regulator-min-microvolt = < 300000>; + regulator-max-microvolt = <1570000>; + regulator-min-microamp = <2000000>; + regulator-max-microamp = <5000000>; + }; + BUCKB { + regulator-name = "VBUCKB"; + regulator-min-microvolt = < 300000>; + regulator-max-microvolt = <1570000>; + regulator-min-microamp = <2000000>; + regulator-max-microamp = <5000000>; + }; + }; + }; + +Example 2) DA92113 + pmic: da9213@68 { + compatible = "dlg,da9213"; + reg = <0x68>; + interrupts = <3 27>; + + regulators { + BUCKA { + regulator-name = "VBUCKA"; + regulator-min-microvolt = < 300000>; + regulator-max-microvolt = <1570000>; + regulator-min-microamp = <3000000>; + regulator-max-microamp = <6000000>; + }; + BUCKB { + regulator-name = "VBUCKB"; + regulator-min-microvolt = < 300000>; + regulator-max-microvolt = <1570000>; + regulator-min-microamp = <3000000>; + regulator-max-microamp = <6000000>; + }; + }; + }; diff --git a/drivers/regulator/da9211-regulator.c b/drivers/regulator/da9211-regulator.c index a26f1d283c57..5aabbac1b524 100644 --- a/drivers/regulator/da9211-regulator.c +++ b/drivers/regulator/da9211-regulator.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include "da9211-regulator.h" @@ -236,6 +237,59 @@ static struct regulator_desc da9211_regulators[] = { DA9211_BUCK(BUCKB), }; +#ifdef CONFIG_OF +static struct of_regulator_match da9211_matches[] = { + [DA9211_ID_BUCKA] = { .name = "BUCKA" }, + [DA9211_ID_BUCKB] = { .name = "BUCKB" }, + }; + +static struct da9211_pdata *da9211_parse_regulators_dt( + struct device *dev) +{ + struct da9211_pdata *pdata; + struct device_node *node; + int i, num, n; + + node = of_get_child_by_name(dev->of_node, "regulators"); + if (!node) { + dev_err(dev, "regulators node not found\n"); + return ERR_PTR(-ENODEV); + } + + num = of_regulator_match(dev, node, da9211_matches, + ARRAY_SIZE(da9211_matches)); + of_node_put(node); + if (num < 0) { + dev_err(dev, "Failed to match regulators\n"); + return ERR_PTR(-EINVAL); + } + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return ERR_PTR(-ENOMEM); + + pdata->num_buck = num; + + n = 0; + for (i = 0; i < ARRAY_SIZE(da9211_matches); i++) { + if (!da9211_matches[i].init_data) + continue; + + pdata->init_data[n] = da9211_matches[i].init_data; + + n++; + }; + + return pdata; +} +#else +static struct da9211_pdata *da9211_parse_regulators_dt( + struct device *dev) +{ + return ERR_PTR(-ENODEV); +} +#endif + static irqreturn_t da9211_irq_handler(int irq, void *data) { struct da9211 *chip = data; @@ -306,7 +360,7 @@ static int da9211_regulator_init(struct da9211 *chip) } for (i = 0; i < chip->num_regulator; i++) { - config.init_data = &(chip->pdata->init_data[i]); + config.init_data = chip->pdata->init_data[i]; config.dev = chip->dev; config.driver_data = chip; config.regmap = chip->regmap; @@ -332,6 +386,21 @@ static int da9211_regulator_init(struct da9211 *chip) return 0; } + +static const struct i2c_device_id da9211_i2c_id[] = { + {"da9211", DA9211}, + {"da9213", DA9213}, + {}, +}; + +#ifdef CONFIG_OF +static const struct of_device_id da9211_dt_ids[] = { + { .compatible = "dlg,da9211", .data = &da9211_i2c_id[0] }, + { .compatible = "dlg,da9213", .data = &da9211_i2c_id[1] }, + {}, +}; +#endif + /* * I2C driver interface functions */ @@ -377,6 +446,14 @@ static int da9211_i2c_probe(struct i2c_client *i2c, return -ENODEV; } + if (!chip->pdata) + chip->pdata = da9211_parse_regulators_dt(chip->dev); + + if (IS_ERR(chip->pdata)) { + dev_err(chip->dev, "No regulators defined for the platform\n"); + return PTR_ERR(chip->pdata); + } + chip->chip_irq = i2c->irq; if (chip->chip_irq != 0) { @@ -401,12 +478,6 @@ static int da9211_i2c_probe(struct i2c_client *i2c, return ret; } -static const struct i2c_device_id da9211_i2c_id[] = { - {"da9211", DA9211}, - {"da9213", DA9213}, - {}, -}; - MODULE_DEVICE_TABLE(i2c, da9211_i2c_id); static struct i2c_driver da9211_regulator_driver = { diff --git a/include/linux/regulator/da9211.h b/include/linux/regulator/da9211.h index 658c3c33f4c0..5479394fefce 100644 --- a/include/linux/regulator/da9211.h +++ b/include/linux/regulator/da9211.h @@ -32,6 +32,6 @@ struct da9211_pdata { * 2 : 2 phase 2 buck */ int num_buck; - struct regulator_init_data *init_data; + struct regulator_init_data *init_data[DA9211_MAX_REGULATORS]; }; #endif From aea8dfb9f32bf90dd6fd00758978b50efdc08df5 Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Tue, 26 Aug 2014 13:37:41 +0200 Subject: [PATCH 27/71] regulator: max77802: set opmode to normal if off is read from hw The max77802 driver reads the default operating mode (opmode) set for regulators when enabled from the hardware registers. But if a regulator is disabled and the system warm restarted, the hardware reports OFF as the opmode so the regulator is not enabled. Default to operating mode NORMAL if OFF is read from the hardware register. Reported-by: Yuvaraj Cd Signed-off-by: Javier Martinez Canillas Reviewed-by: Doug Anderson Tested-by: Yuvaraj Kumar CD Signed-off-by: Mark Brown --- drivers/regulator/max77802.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/regulator/max77802.c b/drivers/regulator/max77802.c index ad1caa902ef0..967e10934d3e 100644 --- a/drivers/regulator/max77802.c +++ b/drivers/regulator/max77802.c @@ -540,7 +540,17 @@ static int max77802_pmic_probe(struct platform_device *pdev) config.of_node = pdata->regulators[i].of_node; ret = regmap_read(iodev->regmap, regulators[i].enable_reg, &val); - max77802->opmode[id] = val >> shift & MAX77802_OPMODE_MASK; + val = val >> shift & MAX77802_OPMODE_MASK; + + /* + * If the regulator is disabled and the system warm rebooted, + * the hardware reports OFF as the regulator operating mode. + * Default to operating mode NORMAL in that case. + */ + if (val == MAX77802_OPMODE_OFF) + max77802->opmode[id] = MAX77802_OPMODE_NORMAL; + else + max77802->opmode[id] = val; rdev = devm_regulator_register(&pdev->dev, ®ulators[i], &config); From c61519fd9abb1b520bcbe2eb21cf161d4d1b9eec Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 28 Aug 2014 21:04:49 +0800 Subject: [PATCH 28/71] regulator: rk808: Fix memory leak The memory allocated in rk808_regulator_probe() needs to be freed when the module is unloaded. Thus pass &pdev->dev rather than &client->dev to devm_kzalloc. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/rk808-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c index f42952ead1bd..0d11df131eba 100644 --- a/drivers/regulator/rk808-regulator.c +++ b/drivers/regulator/rk808-regulator.c @@ -342,7 +342,7 @@ static int rk808_regulator_probe(struct platform_device *pdev) int ret = 0; if (!pdata) { - pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) return -ENOMEM; } From 7179569aeb52197fd2a9909ba226c4c9cc0e2e2a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Heiko=20St=C3=BCbner?= Date: Thu, 28 Aug 2014 12:36:04 -0700 Subject: [PATCH 29/71] regulator: core: Add REGULATOR_EVENT_PRE_VOLTAGE_CHANGE (and ABORT) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In some cases we need to know when a regulator is about to be changed. Add a way for clients to be notified. Note that for set_voltage() we don't necessarily know what voltage we'll end up with, so we tell the client what the range will be so they can prepare. Signed-off-by: Heiko Stübner Signed-off-by: Doug Anderson Signed-off-by: Mark Brown --- drivers/regulator/core.c | 63 ++++++++++++++++++++++++++---- include/linux/regulator/consumer.h | 20 ++++++++++ 2 files changed, 76 insertions(+), 7 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index a3c3785901f5..dabc8e8862c8 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -102,7 +102,7 @@ static int _regulator_disable(struct regulator_dev *rdev); static int _regulator_get_voltage(struct regulator_dev *rdev); static int _regulator_get_current_limit(struct regulator_dev *rdev); static unsigned int _regulator_get_mode(struct regulator_dev *rdev); -static void _notifier_call_chain(struct regulator_dev *rdev, +static int _notifier_call_chain(struct regulator_dev *rdev, unsigned long event, void *data); static int _regulator_do_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV); @@ -2369,6 +2369,55 @@ int regulator_is_supported_voltage(struct regulator *regulator, } EXPORT_SYMBOL_GPL(regulator_is_supported_voltage); +static int _regulator_call_set_voltage(struct regulator_dev *rdev, + int min_uV, int max_uV, + unsigned *selector) +{ + struct pre_voltage_change_data data; + int ret; + + data.old_uV = _regulator_get_voltage(rdev); + data.min_uV = min_uV; + data.max_uV = max_uV; + ret = _notifier_call_chain(rdev, REGULATOR_EVENT_PRE_VOLTAGE_CHANGE, + &data); + if (ret & NOTIFY_STOP_MASK) + return -EINVAL; + + ret = rdev->desc->ops->set_voltage(rdev, min_uV, max_uV, selector); + if (ret >= 0) + return ret; + + _notifier_call_chain(rdev, REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE, + (void *)data.old_uV); + + return ret; +} + +static int _regulator_call_set_voltage_sel(struct regulator_dev *rdev, + int uV, unsigned selector) +{ + struct pre_voltage_change_data data; + int ret; + + data.old_uV = _regulator_get_voltage(rdev); + data.min_uV = uV; + data.max_uV = uV; + ret = _notifier_call_chain(rdev, REGULATOR_EVENT_PRE_VOLTAGE_CHANGE, + &data); + if (ret & NOTIFY_STOP_MASK) + return -EINVAL; + + ret = rdev->desc->ops->set_voltage_sel(rdev, selector); + if (ret >= 0) + return ret; + + _notifier_call_chain(rdev, REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE, + (void *)data.old_uV); + + return ret; +} + static int _regulator_do_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV) { @@ -2396,8 +2445,8 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev, } if (rdev->desc->ops->set_voltage) { - ret = rdev->desc->ops->set_voltage(rdev, min_uV, max_uV, - &selector); + ret = _regulator_call_set_voltage(rdev, min_uV, max_uV, + &selector); if (ret >= 0) { if (rdev->desc->ops->list_voltage) @@ -2432,8 +2481,8 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev, if (old_selector == selector) ret = 0; else - ret = rdev->desc->ops->set_voltage_sel( - rdev, ret); + ret = _regulator_call_set_voltage_sel( + rdev, best_val, selector); } else { ret = -EINVAL; } @@ -3079,11 +3128,11 @@ EXPORT_SYMBOL_GPL(regulator_unregister_notifier); /* notify regulator consumers and downstream regulator consumers. * Note mutex must be held by caller. */ -static void _notifier_call_chain(struct regulator_dev *rdev, +static int _notifier_call_chain(struct regulator_dev *rdev, unsigned long event, void *data) { /* call rdev chain first */ - blocking_notifier_call_chain(&rdev->notifier, event, data); + return blocking_notifier_call_chain(&rdev->notifier, event, data); } /** diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index f8a8733068a7..d347c805f923 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -93,7 +93,12 @@ struct regmap; * OVER_TEMP Regulator over temp. * FORCE_DISABLE Regulator forcibly shut down by software. * VOLTAGE_CHANGE Regulator voltage changed. + * Data passed is old voltage cast to (void *). * DISABLE Regulator was disabled. + * PRE_VOLTAGE_CHANGE Regulator is about to have voltage changed. + * Data passed is "struct pre_voltage_change_data" + * ABORT_VOLTAGE_CHANGE Regulator voltage change failed for some reason. + * Data passed is old voltage cast to (void *). * * NOTE: These events can be OR'ed together when passed into handler. */ @@ -106,6 +111,21 @@ struct regmap; #define REGULATOR_EVENT_FORCE_DISABLE 0x20 #define REGULATOR_EVENT_VOLTAGE_CHANGE 0x40 #define REGULATOR_EVENT_DISABLE 0x80 +#define REGULATOR_EVENT_PRE_VOLTAGE_CHANGE 0x100 +#define REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE 0x200 + +/** + * struct pre_voltage_change_data - Data sent with PRE_VOLTAGE_CHANGE event + * + * @old_uV: Current voltage before change. + * @min_uV: Min voltage we'll change to. + * @max_uV: Max voltage we'll change to. + */ +struct pre_voltage_change_data { + unsigned long old_uV; + unsigned long min_uV; + unsigned long max_uV; +}; struct regulator; From c2a946e07f9776ba5a73c37087c02e0e1830b5ce Mon Sep 17 00:00:00 2001 From: Fengguang Wu Date: Fri, 29 Aug 2014 12:41:59 +0100 Subject: [PATCH 30/71] regulator: da9211: fix coccinelle warnings drivers/regulator/da9211-regulator.c:281:2-3: Unneeded semicolon Removes unneeded semicolon. Generated by: scripts/coccinelle/misc/semicolon.cocci Signed-off-by: Fengguang Wu Signed-off-by: Mark Brown --- drivers/regulator/da9211-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/da9211-regulator.c b/drivers/regulator/da9211-regulator.c index 5aabbac1b524..9722728b954a 100644 --- a/drivers/regulator/da9211-regulator.c +++ b/drivers/regulator/da9211-regulator.c @@ -278,7 +278,7 @@ static struct da9211_pdata *da9211_parse_regulators_dt( pdata->init_data[n] = da9211_matches[i].init_data; n++; - }; + } return pdata; } From 811b700630ff328c52ddf17d653ffdcb0ba87d30 Mon Sep 17 00:00:00 2001 From: Beniamino Galvani Date: Sat, 30 Aug 2014 14:50:24 +0200 Subject: [PATCH 31/71] regulator: rn5t618: add driver for Ricoh RN5T618 regulators This driver supports the 3 DCDC and 7 LDO regulators available on Ricoh RN5T618 PMIC. Signed-off-by: Beniamino Galvani Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 6 ++ drivers/regulator/Makefile | 1 + drivers/regulator/rn5t618-regulator.c | 143 ++++++++++++++++++++++++++ 3 files changed, 150 insertions(+) create mode 100644 drivers/regulator/rn5t618-regulator.c diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index fb32babf756e..ac0e6437b7b5 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -469,6 +469,12 @@ config REGULATOR_RK808 through regulator interface. The device supports multiple DCDC/LDO outputs which can be controlled by i2c communication. +config REGULATOR_RN5T618 + tristate "Ricoh RN5T618 voltage regulators" + depends on MFD_RN5T618 + help + Say y here to support the regulators found on Ricoh RN5T618 PMIC. + config REGULATOR_S2MPA01 tristate "Samsung S2MPA01 voltage regulator" depends on MFD_SEC_CORE diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 236fdbb2b786..3b767c60d76b 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -63,6 +63,7 @@ obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o obj-$(CONFIG_REGULATOR_RC5T583) += rc5t583-regulator.o obj-$(CONFIG_REGULATOR_RK808) += rk808-regulator.o +obj-$(CONFIG_REGULATOR_RN5T618) += rn5t618-regulator.o obj-$(CONFIG_REGULATOR_S2MPA01) += s2mpa01.o obj-$(CONFIG_REGULATOR_S2MPS11) += s2mps11.o obj-$(CONFIG_REGULATOR_S5M8767) += s5m8767.o diff --git a/drivers/regulator/rn5t618-regulator.c b/drivers/regulator/rn5t618-regulator.c new file mode 100644 index 000000000000..e58d79aeb393 --- /dev/null +++ b/drivers/regulator/rn5t618-regulator.c @@ -0,0 +1,143 @@ +/* + * Regulator driver for Ricoh RN5T618 PMIC + * + * Copyright (C) 2014 Beniamino Galvani + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include +#include + +static struct regulator_ops rn5t618_reg_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear, +}; + +#define REG(rid, ereg, emask, vreg, vmask, min, max, step) \ + [RN5T618_##rid] = { \ + .name = #rid, \ + .id = RN5T618_##rid, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .ops = &rn5t618_reg_ops, \ + .n_voltages = ((max) - (min)) / (step) + 1, \ + .min_uV = (min), \ + .uV_step = (step), \ + .enable_reg = RN5T618_##ereg, \ + .enable_mask = (emask), \ + .vsel_reg = RN5T618_##vreg, \ + .vsel_mask = (vmask), \ + } + +static struct regulator_desc rn5t618_regulators[] = { + /* DCDC */ + REG(DCDC1, DC1CTL, BIT(0), DC1DAC, 0xff, 600000, 3500000, 12500), + REG(DCDC2, DC2CTL, BIT(0), DC2DAC, 0xff, 600000, 3500000, 12500), + REG(DCDC3, DC3CTL, BIT(0), DC3DAC, 0xff, 600000, 3500000, 12500), + /* LDO */ + REG(LDO1, LDOEN1, BIT(0), LDO1DAC, 0x7f, 900000, 3500000, 25000), + REG(LDO2, LDOEN1, BIT(1), LDO2DAC, 0x7f, 900000, 3500000, 25000), + REG(LDO3, LDOEN1, BIT(2), LDO3DAC, 0x7f, 600000, 3500000, 25000), + REG(LDO4, LDOEN1, BIT(3), LDO4DAC, 0x7f, 900000, 3500000, 25000), + REG(LDO5, LDOEN1, BIT(4), LDO5DAC, 0x7f, 900000, 3500000, 25000), + /* LDO RTC */ + REG(LDORTC1, LDOEN2, BIT(4), LDORTCDAC, 0x7f, 1700000, 3500000, 25000), + REG(LDORTC2, LDOEN2, BIT(5), LDORTC2DAC, 0x7f, 900000, 3500000, 25000), +}; + +static struct of_regulator_match rn5t618_matches[] = { + [RN5T618_DCDC1] = { .name = "DCDC1" }, + [RN5T618_DCDC2] = { .name = "DCDC2" }, + [RN5T618_DCDC3] = { .name = "DCDC3" }, + [RN5T618_LDO1] = { .name = "LDO1" }, + [RN5T618_LDO2] = { .name = "LDO2" }, + [RN5T618_LDO3] = { .name = "LDO3" }, + [RN5T618_LDO4] = { .name = "LDO4" }, + [RN5T618_LDO5] = { .name = "LDO5" }, + [RN5T618_LDORTC1] = { .name = "LDORTC1" }, + [RN5T618_LDORTC2] = { .name = "LDORTC2" }, +}; + +static int rn5t618_regulator_parse_dt(struct platform_device *pdev) +{ + struct device_node *np, *regulators; + int ret; + + np = of_node_get(pdev->dev.parent->of_node); + if (!np) + return 0; + + regulators = of_get_child_by_name(np, "regulators"); + if (!regulators) { + dev_err(&pdev->dev, "regulators node not found\n"); + return -EINVAL; + } + + ret = of_regulator_match(&pdev->dev, regulators, rn5t618_matches, + ARRAY_SIZE(rn5t618_matches)); + of_node_put(regulators); + if (ret < 0) { + dev_err(&pdev->dev, "error parsing regulator init data: %d\n", + ret); + } + + return 0; +} + +static int rn5t618_regulator_probe(struct platform_device *pdev) +{ + struct rn5t618 *rn5t618 = dev_get_drvdata(pdev->dev.parent); + struct regulator_config config = { }; + struct regulator_dev *rdev; + int ret, i; + + ret = rn5t618_regulator_parse_dt(pdev); + if (ret) + return ret; + + for (i = 0; i < RN5T618_REG_NUM; i++) { + config.dev = &pdev->dev; + config.init_data = rn5t618_matches[i].init_data; + config.of_node = rn5t618_matches[i].of_node; + config.regmap = rn5t618->regmap; + + rdev = devm_regulator_register(&pdev->dev, + &rn5t618_regulators[i], + &config); + if (IS_ERR(rdev)) { + dev_err(&pdev->dev, "failed to register %s regulator\n", + rn5t618_regulators[i].name); + return PTR_ERR(rdev); + } + } + + return 0; +} + +static struct platform_driver rn5t618_regulator_driver = { + .probe = rn5t618_regulator_probe, + .driver = { + .name = "rn5t618-regulator", + }, +}; + +module_platform_driver(rn5t618_regulator_driver); + +MODULE_AUTHOR("Beniamino Galvani "); +MODULE_DESCRIPTION("RN5T618 regulator driver"); +MODULE_LICENSE("GPL v2"); From 4e00517945bed110f1b8de580cce97626e9ef0b5 Mon Sep 17 00:00:00 2001 From: Robert Jarzmik Date: Sun, 31 Aug 2014 21:10:51 +0200 Subject: [PATCH 32/71] regulator: max1586: add device-tree support Add device-tree support to max1586. The driver can still be used with the legacy platform data, or the new device-tree way. This work is heavily inspired by the device-tree support of its cousin max8660 driver. Signed-off-by: Robert Jarzmik Signed-off-by: Mark Brown --- drivers/regulator/max1586.c | 81 ++++++++++++++++++++++++++++++- include/linux/regulator/max1586.h | 2 +- 2 files changed, 80 insertions(+), 3 deletions(-) diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c index d23d0577754b..5c04a7159baa 100644 --- a/drivers/regulator/max1586.c +++ b/drivers/regulator/max1586.c @@ -24,6 +24,8 @@ #include #include #include +#include +#include #define MAX1586_V3_MAX_VSEL 31 #define MAX1586_V6_MAX_VSEL 3 @@ -157,13 +159,87 @@ static struct regulator_desc max1586_reg[] = { }, }; +int of_get_max1586_platform_data(struct device *dev, + struct max1586_platform_data *pdata) +{ + struct max1586_subdev_data *sub; + struct of_regulator_match rmatch[ARRAY_SIZE(max1586_reg)]; + struct device_node *np = dev->of_node; + int i, matched; + + if (of_property_read_u32(np, "v3-gain", + &pdata->v3_gain) < 0) { + dev_err(dev, "%s has no 'v3-gain' property\n", np->full_name); + return -EINVAL; + } + + np = of_get_child_by_name(np, "regulators"); + if (!np) { + dev_err(dev, "missing 'regulators' subnode in DT\n"); + return -EINVAL; + } + + for (i = 0; i < ARRAY_SIZE(rmatch); i++) + rmatch[i].name = max1586_reg[i].name; + + matched = of_regulator_match(dev, np, rmatch, ARRAY_SIZE(rmatch)); + of_node_put(np); + /* + * If matched is 0, ie. neither Output_V3 nor Output_V6 have been found, + * return 0, which signals the normal situation where no subregulator is + * available. This is normal because the max1586 doesn't provide any + * readback support, so the subregulators can't report any status + * anyway. If matched < 0, return the error. + */ + if (matched <= 0) + return matched; + + pdata->subdevs = devm_kzalloc(dev, sizeof(struct max1586_subdev_data) * + matched, GFP_KERNEL); + if (!pdata->subdevs) + return -ENOMEM; + + pdata->num_subdevs = matched; + sub = pdata->subdevs; + + for (i = 0; i < matched; i++) { + sub->id = i; + sub->name = rmatch[i].of_node->name; + sub->platform_data = rmatch[i].init_data; + sub++; + } + + return 0; +} + +static const struct of_device_id max1586_of_match[] = { + { .compatible = "maxim,max1586", }, + {}, +}; +MODULE_DEVICE_TABLE(of, max1586_of_match); + static int max1586_pmic_probe(struct i2c_client *client, const struct i2c_device_id *i2c_id) { - struct max1586_platform_data *pdata = dev_get_platdata(&client->dev); + struct max1586_platform_data *pdata, pdata_of; struct regulator_config config = { }; struct max1586_data *max1586; - int i, id; + int i, id, ret; + const struct of_device_id *match; + + pdata = dev_get_platdata(&client->dev); + if (client->dev.of_node && !pdata) { + match = of_match_device(of_match_ptr(max1586_of_match), + &client->dev); + if (!match) { + dev_err(&client->dev, "Error: No device match found\n"); + return -ENODEV; + } + ret = of_get_max1586_platform_data(&client->dev, &pdata_of); + if (ret < 0) + return ret; + pdata = &pdata_of; + } max1586 = devm_kzalloc(&client->dev, sizeof(struct max1586_data), GFP_KERNEL); @@ -229,6 +305,7 @@ static struct i2c_driver max1586_pmic_driver = { .driver = { .name = "max1586", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(max1586_of_match), }, .id_table = max1586_id, }; diff --git a/include/linux/regulator/max1586.h b/include/linux/regulator/max1586.h index de9a7fae20be..cedd0febe882 100644 --- a/include/linux/regulator/max1586.h +++ b/include/linux/regulator/max1586.h @@ -40,7 +40,7 @@ */ struct max1586_subdev_data { int id; - char *name; + const char *name; struct regulator_init_data *platform_data; }; From 4eea4b8e4491d3b2a96ec4b9b0f3a188da018cd1 Mon Sep 17 00:00:00 2001 From: Robert Jarzmik Date: Sun, 31 Aug 2014 21:10:52 +0200 Subject: [PATCH 33/71] regulator: max1586: add device-tree binding Add max1586 regulator device-tree bindings documentation. Signed-off-by: Robert Jarzmik Signed-off-by: Mark Brown --- .../bindings/regulator/max1586-regulator.txt | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/max1586-regulator.txt diff --git a/Documentation/devicetree/bindings/regulator/max1586-regulator.txt b/Documentation/devicetree/bindings/regulator/max1586-regulator.txt new file mode 100644 index 000000000000..c050c1744cb8 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/max1586-regulator.txt @@ -0,0 +1,28 @@ +Maxim MAX1586 voltage regulator + +Required properties: +- compatible: must be "maxim,max1586" +- reg: I2C slave address, usually 0x14 +- v3-gain: integer specifying the V3 gain as per datasheet + (1 + R24/R25 + R24/185.5kOhm) +- any required generic properties defined in regulator.txt + +Example: + + i2c_master { + max1586@14 { + compatible = "maxim,max1586"; + reg = <0x14>; + v3-gain = <1000000>; + + regulators { + vcc_core: v3 { + regulator-name = "vcc_core"; + regulator-compatible = "Output_V3"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1705000>; + regulator-always-on; + }; + }; + }; + }; From 5ccedf03427ec71ab29a8bd77110242a605085a5 Mon Sep 17 00:00:00 2001 From: Fengguang Wu Date: Mon, 1 Sep 2014 12:55:58 +0100 Subject: [PATCH 34/71] regulator: max1586: of_get_max1586_platform_data() can be static Signed-off-by: Fengguang Wu Signed-off-by: Mark Brown --- drivers/regulator/max1586.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c index 5c04a7159baa..86db310d5304 100644 --- a/drivers/regulator/max1586.c +++ b/drivers/regulator/max1586.c @@ -159,7 +159,7 @@ static struct regulator_desc max1586_reg[] = { }, }; -int of_get_max1586_platform_data(struct device *dev, +static int of_get_max1586_platform_data(struct device *dev, struct max1586_platform_data *pdata) { struct max1586_subdev_data *sub; From 5a82067f013fb4f5083fabf4d28f4d1bbada8734 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 2 Sep 2014 08:47:31 +0800 Subject: [PATCH 35/71] regulator: rk808: Fix n_voltages for DCDC4 The min_sel is 0, max_sel is 15, so n_voltages should be 16. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/rk808-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c index 0d11df131eba..0da8867bdf4c 100644 --- a/drivers/regulator/rk808-regulator.c +++ b/drivers/regulator/rk808-regulator.c @@ -146,7 +146,7 @@ static const struct regulator_desc rk808_reg[] = { .id = RK808_ID_DCDC4, .ops = &rk808_reg_ops, .type = REGULATOR_VOLTAGE, - .n_voltages = 17, + .n_voltages = 16, .linear_ranges = rk808_buck4_voltage_ranges, .n_linear_ranges = ARRAY_SIZE(rk808_buck4_voltage_ranges), .vsel_reg = RK808_BUCK4_ON_VSEL_REG, From b8074eba2a6b5b1b090cf9c53dbccf3bc3e5205a Mon Sep 17 00:00:00 2001 From: Doug Anderson Date: Tue, 2 Sep 2014 09:14:28 -0700 Subject: [PATCH 36/71] regulator: RK808: Add proper input supplies for rk808 The original RK808 regulator driver didn't setup input supplies properly. Add them. Signed-off-by: Doug Anderson Signed-off-by: Mark Brown --- drivers/regulator/rk808-regulator.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c index 0da8867bdf4c..e3720085b4ce 100644 --- a/drivers/regulator/rk808-regulator.c +++ b/drivers/regulator/rk808-regulator.c @@ -108,6 +108,7 @@ static struct regulator_ops rk808_switch_ops = { static const struct regulator_desc rk808_reg[] = { { .name = "DCDC_REG1", + .supply_name = "vcc1", .id = RK808_ID_DCDC1, .ops = &rk808_reg_ops, .type = REGULATOR_VOLTAGE, @@ -121,6 +122,7 @@ static const struct regulator_desc rk808_reg[] = { .owner = THIS_MODULE, }, { .name = "DCDC_REG2", + .supply_name = "vcc2", .id = RK808_ID_DCDC2, .ops = &rk808_reg_ops, .type = REGULATOR_VOLTAGE, @@ -134,6 +136,7 @@ static const struct regulator_desc rk808_reg[] = { .owner = THIS_MODULE, }, { .name = "DCDC_REG3", + .supply_name = "vcc3", .id = RK808_ID_DCDC3, .ops = &rk808_switch_ops, .type = REGULATOR_VOLTAGE, @@ -143,6 +146,7 @@ static const struct regulator_desc rk808_reg[] = { .owner = THIS_MODULE, }, { .name = "DCDC_REG4", + .supply_name = "vcc4", .id = RK808_ID_DCDC4, .ops = &rk808_reg_ops, .type = REGULATOR_VOLTAGE, @@ -156,6 +160,7 @@ static const struct regulator_desc rk808_reg[] = { .owner = THIS_MODULE, }, { .name = "LDO_REG1", + .supply_name = "vcc6", .id = RK808_ID_LDO1, .ops = &rk808_reg_ops, .type = REGULATOR_VOLTAGE, @@ -169,6 +174,7 @@ static const struct regulator_desc rk808_reg[] = { .owner = THIS_MODULE, }, { .name = "LDO_REG2", + .supply_name = "vcc6", .id = RK808_ID_LDO2, .ops = &rk808_reg_ops, .type = REGULATOR_VOLTAGE, @@ -182,6 +188,7 @@ static const struct regulator_desc rk808_reg[] = { .owner = THIS_MODULE, }, { .name = "LDO_REG3", + .supply_name = "vcc7", .id = RK808_ID_LDO3, .ops = &rk808_reg_ops, .type = REGULATOR_VOLTAGE, @@ -195,6 +202,7 @@ static const struct regulator_desc rk808_reg[] = { .owner = THIS_MODULE, }, { .name = "LDO_REG4", + .supply_name = "vcc9", .id = RK808_ID_LDO4, .ops = &rk808_reg_ops, .type = REGULATOR_VOLTAGE, @@ -208,6 +216,7 @@ static const struct regulator_desc rk808_reg[] = { .owner = THIS_MODULE, }, { .name = "LDO_REG5", + .supply_name = "vcc9", .id = RK808_ID_LDO5, .ops = &rk808_reg_ops, .type = REGULATOR_VOLTAGE, @@ -221,6 +230,7 @@ static const struct regulator_desc rk808_reg[] = { .owner = THIS_MODULE, }, { .name = "LDO_REG6", + .supply_name = "vcc10", .id = RK808_ID_LDO6, .ops = &rk808_reg_ops, .type = REGULATOR_VOLTAGE, @@ -234,6 +244,7 @@ static const struct regulator_desc rk808_reg[] = { .owner = THIS_MODULE, }, { .name = "LDO_REG7", + .supply_name = "vcc7", .id = RK808_ID_LDO7, .ops = &rk808_reg_ops, .type = REGULATOR_VOLTAGE, @@ -247,6 +258,7 @@ static const struct regulator_desc rk808_reg[] = { .owner = THIS_MODULE, }, { .name = "LDO_REG8", + .supply_name = "vcc11", .id = RK808_ID_LDO8, .ops = &rk808_reg_ops, .type = REGULATOR_VOLTAGE, @@ -260,6 +272,7 @@ static const struct regulator_desc rk808_reg[] = { .owner = THIS_MODULE, }, { .name = "SWITCH_REG1", + .supply_name = "vcc8", .id = RK808_ID_SWITCH1, .ops = &rk808_switch_ops, .type = REGULATOR_VOLTAGE, @@ -268,6 +281,7 @@ static const struct regulator_desc rk808_reg[] = { .owner = THIS_MODULE, }, { .name = "SWITCH_REG2", + .supply_name = "vcc12", .id = RK808_ID_SWITCH2, .ops = &rk808_switch_ops, .type = REGULATOR_VOLTAGE, @@ -364,7 +378,6 @@ static int rk808_regulator_probe(struct platform_device *pdev) if (client->dev.of_node) config.of_node = pdata->of_node[i]; - reg_data->supply_regulator = rk808_reg[i].name; config.init_data = reg_data; rk808_rdev = devm_regulator_register(&pdev->dev, From 67c866cfcb7cfe74d66645aa4c1e983d22e0001a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 3 Sep 2014 09:15:30 +0800 Subject: [PATCH 37/71] regulator: da9211: Fix missing config.of_node setting Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/da9211-regulator.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/regulator/da9211-regulator.c b/drivers/regulator/da9211-regulator.c index 9722728b954a..044c36cac585 100644 --- a/drivers/regulator/da9211-regulator.c +++ b/drivers/regulator/da9211-regulator.c @@ -364,6 +364,7 @@ static int da9211_regulator_init(struct da9211 *chip) config.dev = chip->dev; config.driver_data = chip; config.regmap = chip->regmap; + config.of_node = chip->dev->of_node; chip->rdev[i] = devm_regulator_register(chip->dev, &da9211_regulators[i], &config); From 97795e4da234371be8ad3904d626566b7077a9ae Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 5 Sep 2014 09:14:26 +0800 Subject: [PATCH 38/71] regulator: hi6421: Fix misleading comment Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/hi6421-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/hi6421-regulator.c b/drivers/regulator/hi6421-regulator.c index e3899201cd7e..a8c362cccea8 100644 --- a/drivers/regulator/hi6421-regulator.c +++ b/drivers/regulator/hi6421-regulator.c @@ -37,7 +37,7 @@ struct hi6421_regulator_pdata { * struct hi6421_regulator_info - hi6421 regulator information * @desc: regulator description * @mode_mask: ECO mode bitmask of LDOs; for BUCKs, this masks sleep - * @eco_microamp: eco mode load upper limit (in mA), valid for LDOs only + * @eco_microamp: eco mode load upper limit (in uA), valid for LDOs only */ struct hi6421_regulator_info { struct regulator_desc desc; From da0bb557ba0b5985631a98b7450d256251e7fb5d Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 5 Sep 2014 09:17:41 +0800 Subject: [PATCH 39/71] regulator: max77802: Remove duplicate rdev_get_id() call Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/max77802.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/regulator/max77802.c b/drivers/regulator/max77802.c index 967e10934d3e..d89792b084e9 100644 --- a/drivers/regulator/max77802.c +++ b/drivers/regulator/max77802.c @@ -134,7 +134,7 @@ static int max77802_ldo_set_suspend_mode_logic1(struct regulator_dev *rdev, return -EINVAL; } - max77802->opmode[rdev_get_id(rdev)] = val; + max77802->opmode[id] = val; return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, rdev->desc->enable_mask, val << shift); } @@ -167,7 +167,7 @@ static int max77802_ldo_set_suspend_mode_logic2(struct regulator_dev *rdev, return -EINVAL; } - max77802->opmode[rdev_get_id(rdev)] = val; + max77802->opmode[id] = val; return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, rdev->desc->enable_mask, val << shift); } From 6a52f5633944f075bcc403d66164b5b90b42a751 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 5 Sep 2014 09:12:55 +0800 Subject: [PATCH 40/71] regulator: da9211: Set of_match_table and export device table Also move da9211_i2c_id and da9211_dt_ids close to the user for better readability. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/da9211-regulator.c | 29 ++++++++++++++-------------- 1 file changed, 15 insertions(+), 14 deletions(-) diff --git a/drivers/regulator/da9211-regulator.c b/drivers/regulator/da9211-regulator.c index 044c36cac585..f47adf3c7f21 100644 --- a/drivers/regulator/da9211-regulator.c +++ b/drivers/regulator/da9211-regulator.c @@ -388,20 +388,6 @@ static int da9211_regulator_init(struct da9211 *chip) return 0; } -static const struct i2c_device_id da9211_i2c_id[] = { - {"da9211", DA9211}, - {"da9213", DA9213}, - {}, -}; - -#ifdef CONFIG_OF -static const struct of_device_id da9211_dt_ids[] = { - { .compatible = "dlg,da9211", .data = &da9211_i2c_id[0] }, - { .compatible = "dlg,da9213", .data = &da9211_i2c_id[1] }, - {}, -}; -#endif - /* * I2C driver interface functions */ @@ -479,12 +465,27 @@ static int da9211_i2c_probe(struct i2c_client *i2c, return ret; } +static const struct i2c_device_id da9211_i2c_id[] = { + {"da9211", DA9211}, + {"da9213", DA9213}, + {}, +}; MODULE_DEVICE_TABLE(i2c, da9211_i2c_id); +#ifdef CONFIG_OF +static const struct of_device_id da9211_dt_ids[] = { + { .compatible = "dlg,da9211", .data = &da9211_i2c_id[0] }, + { .compatible = "dlg,da9213", .data = &da9211_i2c_id[1] }, + {}, +}; +MODULE_DEVICE_TABLE(of, da9211_dt_ids); +#endif + static struct i2c_driver da9211_regulator_driver = { .driver = { .name = "da9211", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(da9211_dt_ids), }, .probe = da9211_i2c_probe, .id_table = da9211_i2c_id, From dec38b5ce6a9edb406c60c2670b26a1a4262fdb9 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 6 Sep 2014 01:11:12 +0100 Subject: [PATCH 41/71] regulator: isl9305: Add Intersil ISL9305/H driver The ISL9305 and ISL9305H are mini-PMICs offering two DCDC regulators and two LDO regulators. While there are some register differences between them these do not affect the current Linux driver as the relevant features are not yet supported. Signed-off-by: Mark Brown --- .../devicetree/bindings/regulator/isl9305.txt | 36 +++ drivers/regulator/Kconfig | 6 + drivers/regulator/Makefile | 1 + drivers/regulator/isl9305.c | 247 ++++++++++++++++++ include/linux/platform_data/isl9305.h | 30 +++ 5 files changed, 320 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/isl9305.txt create mode 100644 drivers/regulator/isl9305.c create mode 100644 include/linux/platform_data/isl9305.h diff --git a/Documentation/devicetree/bindings/regulator/isl9305.txt b/Documentation/devicetree/bindings/regulator/isl9305.txt new file mode 100644 index 000000000000..a626fc1bbf0d --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/isl9305.txt @@ -0,0 +1,36 @@ +Intersil ISL9305/ISL9305H voltage regulator + +Required properties: + +- compatible: "isl,isl9305" or "isl,isl9305h" +- reg: I2C slave address, usually 0x68. +- regulators: A node that houses a sub-node for each regulator within the + device. Each sub-node is identified using the node's name, with valid + values being "dcd1", "dcd2", "ldo1" and "ldo2". The content of each sub-node + is defined by the standard binding for regulators; see regulator.txt. +- VINDCD1-supply: A phandle to a regulator node supplying VINDCD1. + VINDCD2-supply: A phandle to a regulator node supplying VINDCD2. + VINLDO1-supply: A phandle to a regulator node supplying VINLDO1. + VINLDO2-supply: A phandle to a regulator node supplying VINLDO2. + +Optional properties: +- Per-regulator optional properties are defined in regulator.txt + +Example + + pmic: isl9305@68 { + compatible = "isl,isl9305"; + reg = <0x68>; + + VINDCD1-supply = <&system_power>; + VINDCD2-supply = <&system_power>; + VINLDO1-supply = <&system_power>; + VINLDO2-supply = <&system_power>; + + regulators { + dcd1 { + regulator-name = "VDD_DSP"; + regulator-always-on; + }; + }; + }; diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index e6b98ed4c12f..3c8b6f401e4f 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -250,6 +250,12 @@ config REGULATOR_HI6421 21 general purpose LDOs, 3 dedicated LDOs, and 5 BUCKs. All of them come with support to either ECO (idle) or sleep mode. +config REGULATOR_ISL9305 + tristate "Intersil ISL9305 regulator" + depends on I2C + help + This driver supports ISL9305 voltage regulator chip. + config REGULATOR_ISL6271A tristate "Intersil ISL6271A Power regulator" depends on I2C diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 5513e2c141b1..e12fee8c943b 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -34,6 +34,7 @@ obj-$(CONFIG_REGULATOR_FAN53555) += fan53555.o obj-$(CONFIG_REGULATOR_GPIO) += gpio-regulator.o obj-$(CONFIG_REGULATOR_HI6421) += hi6421-regulator.o obj-$(CONFIG_REGULATOR_ISL6271A) += isl6271a-regulator.o +obj-$(CONFIG_REGULATOR_ISL9305) += isl9305.o obj-$(CONFIG_REGULATOR_LP3971) += lp3971.o obj-$(CONFIG_REGULATOR_LP3972) += lp3972.o obj-$(CONFIG_REGULATOR_LP872X) += lp872x.o diff --git a/drivers/regulator/isl9305.c b/drivers/regulator/isl9305.c new file mode 100644 index 000000000000..b0d12d186b68 --- /dev/null +++ b/drivers/regulator/isl9305.c @@ -0,0 +1,247 @@ +/* + * isl9305 - Intersil ISL9305 DCDC regulator + * + * Copyright 2014 Linaro Ltd + * + * Author: Mark Brown + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * Registers + */ +#define ISL9305_DCD1OUT 0x0 +#define ISL9305_DCD2OUT 0x1 +#define ISL9305_LDO1OUT 0x2 +#define ISL9305_LDO2OUT 0x3 +#define ISL9305_DCD_PARAMETER 0x4 +#define ISL9305_SYSTEM_PARAMETER 0x5 +#define ISL9305_DCD_SRCTL 0x6 + +#define ISL9305_MAX_REG ISL9305_DCD_SRCTL + +/* + * DCD_PARAMETER + */ +#define ISL9305_DCD_PHASE 0x40 +#define ISL9305_DCD2_ULTRA 0x20 +#define ISL9305_DCD1_ULTRA 0x10 +#define ISL9305_DCD2_BLD 0x08 +#define ISL9305_DCD1_BLD 0x04 +#define ISL9305_DCD2_MODE 0x02 +#define ISL9305_DCD1_MODE 0x01 + +/* + * SYSTEM_PARAMETER + */ +#define ISL9305_I2C_EN 0x40 +#define ISL9305_DCDPOR_MASK 0x30 +#define ISL9305_LDO2_EN 0x08 +#define ISL9305_LDO1_EN 0x04 +#define ISL9305_DCD2_EN 0x02 +#define ISL9305_DCD1_EN 0x01 + +/* + * DCD_SRCTL + */ +#define ISL9305_DCD2SR_MASK 0xc0 +#define ISL9305_DCD1SR_MASK 0x07 + +static const struct regulator_ops isl9305_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .list_voltage = regulator_list_voltage_linear, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, +}; + +static const struct regulator_desc isl9305_regulators[] = { + [ISL9305_DCD1] = { + .name = "DCD1", + .n_voltages = 0x70, + .min_uV = 825000, + .uV_step = 25000, + .vsel_reg = ISL9305_DCD1OUT, + .vsel_mask = 0x7f, + .enable_reg = ISL9305_SYSTEM_PARAMETER, + .enable_mask = ISL9305_DCD1_EN, + .supply_name = "VINDCD1", + .ops = &isl9305_ops, + }, + [ISL9305_DCD2] = { + .name = "DCD2", + .n_voltages = 0x70, + .min_uV = 825000, + .uV_step = 25000, + .vsel_reg = ISL9305_DCD2OUT, + .vsel_mask = 0x7f, + .enable_reg = ISL9305_SYSTEM_PARAMETER, + .enable_mask = ISL9305_DCD2_EN, + .supply_name = "VINDCD2", + .ops = &isl9305_ops, + }, + [ISL9305_LDO1] = { + .name = "LDO1", + .n_voltages = 0x37, + .min_uV = 900000, + .uV_step = 50000, + .vsel_reg = ISL9305_LDO1OUT, + .vsel_mask = 0x3f, + .enable_reg = ISL9305_SYSTEM_PARAMETER, + .enable_mask = ISL9305_LDO1_EN, + .supply_name = "VINLDO1", + .ops = &isl9305_ops, + }, + [ISL9305_LDO2] = { + .name = "LDO2", + .n_voltages = 0x37, + .min_uV = 900000, + .uV_step = 50000, + .vsel_reg = ISL9305_LDO2OUT, + .vsel_mask = 0x3f, + .enable_reg = ISL9305_SYSTEM_PARAMETER, + .enable_mask = ISL9305_LDO2_EN, + .supply_name = "VINLDO2", + .ops = &isl9305_ops, + }, +}; + +#ifdef CONFIG_OF +static struct of_regulator_match isl9305_reg_matches[] = { + [ISL9305_DCD1] = { .name = "dcd1" }, + [ISL9305_DCD2] = { .name = "dcd2" }, + [ISL9305_LDO1] = { .name = "ldo1" }, + [ISL9305_LDO2] = { .name = "ldo2" }, +}; + +static struct of_regulator_match *isl9305_parse_dt(struct i2c_client *i2c) +{ + struct device_node *node = i2c->dev.of_node; + struct of_regulator_match *matches; + struct device_node *regs; + int count; + + regs = of_get_child_by_name(node, "regulators"); + if (!regs) + return NULL; + + matches = devm_kmemdup(&i2c->dev, isl9305_reg_matches, + sizeof(isl9305_reg_matches), GFP_KERNEL); + if (!matches) + return NULL; + + count = of_regulator_match(&i2c->dev, regs, matches, + ARRAY_SIZE(isl9305_reg_matches)); + of_node_put(regs); + if ((count < 0) || (count > ARRAY_SIZE(isl9305_reg_matches))) + return NULL; + + return matches; +} +#else +static struct of_regulator_match *isl9305_parse_dt(struct i2c_client *i2c) +{ + return NULL; +} +#endif + +static const struct regmap_config isl9305_regmap = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = ISL9305_MAX_REG, + .cache_type = REGCACHE_RBTREE, +}; + +static int isl9305_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct regulator_config config = { }; + struct isl9305_pdata *pdata = i2c->dev.platform_data; + struct of_regulator_match *of_matches; + struct regulator_dev *rdev; + struct regmap *regmap; + int i, ret; + + of_matches = isl9305_parse_dt(i2c); + + regmap = devm_regmap_init_i2c(i2c, &isl9305_regmap); + if (IS_ERR(regmap)) { + ret = PTR_ERR(regmap); + dev_err(&i2c->dev, "Failed to create regmap: %d\n", ret); + return ret; + } + + config.dev = &i2c->dev; + + for (i = 0; i < ARRAY_SIZE(isl9305_regulators); i++) { + config.of_node = NULL; + config.init_data = NULL; + + if (of_matches) { + config.init_data = of_matches[i].init_data; + config.of_node = of_matches[i].of_node; + } + + if (!config.init_data && pdata) + config.init_data = pdata->init_data[i]; + + rdev = devm_regulator_register(&i2c->dev, + &isl9305_regulators[i], + &config); + if (IS_ERR(rdev)) { + ret = PTR_ERR(rdev); + dev_err(&i2c->dev, "Failed to register %s: %d\n", + isl9305_regulators[i].name, ret); + return ret; + } + } + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id isl9305_dt_ids[] = { + { .compatible = "isl,isl9305" }, + { .compatible = "isl,isl9305h" }, + {}, +}; +#endif + +static const struct i2c_device_id isl9305_i2c_id[] = { + { "isl9305", }, + { "isl9305h", }, + { } +}; +MODULE_DEVICE_TABLE(i2c, isl9305_i2c_id); + +static struct i2c_driver isl9305_regulator_driver = { + .driver = { + .name = "isl9305", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(isl9305_dt_ids), + }, + .probe = isl9305_i2c_probe, + .id_table = isl9305_i2c_id, +}; + +module_i2c_driver(isl9305_regulator_driver); + +MODULE_AUTHOR("Mark Brown"); +MODULE_DESCRIPTION("Intersil ISL9305 DCDC regulator"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/platform_data/isl9305.h b/include/linux/platform_data/isl9305.h new file mode 100644 index 000000000000..1419133fa69e --- /dev/null +++ b/include/linux/platform_data/isl9305.h @@ -0,0 +1,30 @@ +/* + * isl9305 - Intersil ISL9305 DCDC regulator + * + * Copyright 2014 Linaro Ltd + * + * Author: Mark Brown + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#ifndef __ISL9305_H +#define __ISL9305_H + +#define ISL9305_DCD1 0 +#define ISL9305_DCD2 1 +#define ISL9305_LDO1 2 +#define ISL9305_LDO2 3 + +#define ISL9305_MAX_REGULATOR ISL9305_LDO2 + +struct regulator_init_data; + +struct isl9305_pdata { + struct regulator_init_data *init_data[ISL9305_MAX_REGULATOR]; +}; + +#endif From 81baf9fe0243a4450d738676ccf99d325460c748 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 6 Sep 2014 12:10:47 +0100 Subject: [PATCH 42/71] regulator: tps65217: Remove spurious platform data check We should always be able to probe a regulator with no platform data. This will enable readback of current state, though no changes can be made to the device configuration. Signed-off-by: Mark Brown --- drivers/regulator/tps65217-regulator.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c index d58db72a63b0..1cf16aed9735 100644 --- a/drivers/regulator/tps65217-regulator.c +++ b/drivers/regulator/tps65217-regulator.c @@ -230,11 +230,6 @@ static int tps65217_regulator_probe(struct platform_device *pdev) if (tps->dev->of_node) pdata = tps65217_parse_dt(pdev); - if (!pdata) { - dev_err(&pdev->dev, "Platform data not found\n"); - return -EINVAL; - } - if (tps65217_chip_id(tps) != TPS65217) { dev_err(&pdev->dev, "Invalid tps chip version\n"); return -ENODEV; @@ -245,7 +240,8 @@ static int tps65217_regulator_probe(struct platform_device *pdev) for (i = 0; i < TPS65217_NUM_REGULATOR; i++) { /* Register the regulators */ config.dev = tps->dev; - config.init_data = pdata->tps65217_init_data[i]; + if (pdata) + config.init_data = pdata->tps65217_init_data[i]; config.driver_data = tps; config.regmap = tps->regmap; if (tps->dev->of_node) From 5c5e417bc06ff8d8b3214675f38f362567f0cd22 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 6 Sep 2014 20:59:36 +0800 Subject: [PATCH 43/71] regulator: hi6421: Fix misleading comment Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/hi6421-regulator.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/regulator/hi6421-regulator.c b/drivers/regulator/hi6421-regulator.c index a8c362cccea8..156d0d1a55f1 100644 --- a/drivers/regulator/hi6421-regulator.c +++ b/drivers/regulator/hi6421-regulator.c @@ -164,7 +164,7 @@ static const struct regulator_ops hi6421_buck345_ops; * emask - enable mask * odelay - off/on delay time in uS * ecomask - eco mode mask - * ecoamp - eco mode load uppler limit in mA + * ecoamp - eco mode load uppler limit in uA */ #define HI6421_LDO(_id, v_table, vreg, vmask, ereg, emask, \ odelay, ecomask, ecoamp) \ @@ -200,7 +200,7 @@ static const struct regulator_ops hi6421_buck345_ops; * emask - enable mask * odelay - off/on delay time in uS * ecomask - eco mode mask - * ecoamp - eco mode load uppler limit in mA + * ecoamp - eco mode load uppler limit in uA */ #define HI6421_LDO_LINEAR(_id, _min_uV, n_volt, vstep, vreg, vmask, \ ereg, emask, odelay, ecomask, ecoamp) \ @@ -237,7 +237,7 @@ static const struct regulator_ops hi6421_buck345_ops; * emask - enable mask * odelay - off/on delay time in uS * ecomask - eco mode mask - * ecoamp - eco mode load uppler limit in mA + * ecoamp - eco mode load uppler limit in uA */ #define HI6421_LDO_LINEAR_RANGE(_id, n_volt, volt_ranges, vreg, vmask, \ ereg, emask, odelay, ecomask, ecoamp) \ From 192264e0a5473015df28f47241bcdbf6b8c24873 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 7 Sep 2014 18:34:51 +0800 Subject: [PATCH 44/71] regulator: as3711: Remove unused fields from as3711_regulator_info and as3711_regulator The max_uV is not used, so remove it from struct as3711_regulator_info. Current code is using devm_regulator_register(), so we don't need to store *rdev in struct as3711_regulator for clean up. Also clean up AS3711_REG macro to remove _vshift, _min_uV and _max_uV arguments. _vshift is always 0, so remove it. _min_uV and _max_uV are not required, all required settings are set in REGULATOR_LINEAR_RANGE macro. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/as3711-regulator.c | 61 +++++++++++++--------------- 1 file changed, 28 insertions(+), 33 deletions(-) diff --git a/drivers/regulator/as3711-regulator.c b/drivers/regulator/as3711-regulator.c index b47283f91e2d..8459b0b648cd 100644 --- a/drivers/regulator/as3711-regulator.c +++ b/drivers/regulator/as3711-regulator.c @@ -22,12 +22,10 @@ struct as3711_regulator_info { struct regulator_desc desc; - unsigned int max_uV; }; struct as3711_regulator { struct as3711_regulator_info *reg_info; - struct regulator_dev *rdev; }; /* @@ -132,39 +130,37 @@ static const struct regulator_linear_range as3711_dldo_ranges[] = { REGULATOR_LINEAR_RANGE(1750000, 0x20, 0x3f, 50000), }; -#define AS3711_REG(_id, _en_reg, _en_bit, _vmask, _vshift, _min_uV, _max_uV, _sfx) \ - [AS3711_REGULATOR_ ## _id] = { \ - .desc = { \ - .name = "as3711-regulator-" # _id, \ - .id = AS3711_REGULATOR_ ## _id, \ - .n_voltages = (_vmask + 1), \ - .ops = &as3711_ ## _sfx ## _ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .vsel_reg = AS3711_ ## _id ## _VOLTAGE, \ - .vsel_mask = _vmask << _vshift, \ - .enable_reg = AS3711_ ## _en_reg, \ - .enable_mask = BIT(_en_bit), \ - .min_uV = _min_uV, \ - .linear_ranges = as3711_ ## _sfx ## _ranges, \ - .n_linear_ranges = ARRAY_SIZE(as3711_ ## _sfx ## _ranges), \ - }, \ - .max_uV = _max_uV, \ +#define AS3711_REG(_id, _en_reg, _en_bit, _vmask, _sfx) \ + [AS3711_REGULATOR_ ## _id] = { \ + .desc = { \ + .name = "as3711-regulator-" # _id, \ + .id = AS3711_REGULATOR_ ## _id, \ + .n_voltages = (_vmask + 1), \ + .ops = &as3711_ ## _sfx ## _ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .vsel_reg = AS3711_ ## _id ## _VOLTAGE, \ + .vsel_mask = _vmask, \ + .enable_reg = AS3711_ ## _en_reg, \ + .enable_mask = BIT(_en_bit), \ + .linear_ranges = as3711_ ## _sfx ## _ranges, \ + .n_linear_ranges = ARRAY_SIZE(as3711_ ## _sfx ## _ranges), \ + }, \ } static struct as3711_regulator_info as3711_reg_info[] = { - AS3711_REG(SD_1, SD_CONTROL, 0, 0x7f, 0, 612500, 3350000, sd), - AS3711_REG(SD_2, SD_CONTROL, 1, 0x7f, 0, 612500, 3350000, sd), - AS3711_REG(SD_3, SD_CONTROL, 2, 0x7f, 0, 612500, 3350000, sd), - AS3711_REG(SD_4, SD_CONTROL, 3, 0x7f, 0, 612500, 3350000, sd), - AS3711_REG(LDO_1, LDO_1_VOLTAGE, 7, 0x1f, 0, 1200000, 3300000, aldo), - AS3711_REG(LDO_2, LDO_2_VOLTAGE, 7, 0x1f, 0, 1200000, 3300000, aldo), - AS3711_REG(LDO_3, LDO_3_VOLTAGE, 7, 0x3f, 0, 900000, 3300000, dldo), - AS3711_REG(LDO_4, LDO_4_VOLTAGE, 7, 0x3f, 0, 900000, 3300000, dldo), - AS3711_REG(LDO_5, LDO_5_VOLTAGE, 7, 0x3f, 0, 900000, 3300000, dldo), - AS3711_REG(LDO_6, LDO_6_VOLTAGE, 7, 0x3f, 0, 900000, 3300000, dldo), - AS3711_REG(LDO_7, LDO_7_VOLTAGE, 7, 0x3f, 0, 900000, 3300000, dldo), - AS3711_REG(LDO_8, LDO_8_VOLTAGE, 7, 0x3f, 0, 900000, 3300000, dldo), + AS3711_REG(SD_1, SD_CONTROL, 0, 0x7f, sd), + AS3711_REG(SD_2, SD_CONTROL, 1, 0x7f, sd), + AS3711_REG(SD_3, SD_CONTROL, 2, 0x7f, sd), + AS3711_REG(SD_4, SD_CONTROL, 3, 0x7f, sd), + AS3711_REG(LDO_1, LDO_1_VOLTAGE, 7, 0x1f, aldo), + AS3711_REG(LDO_2, LDO_2_VOLTAGE, 7, 0x1f, aldo), + AS3711_REG(LDO_3, LDO_3_VOLTAGE, 7, 0x3f, dldo), + AS3711_REG(LDO_4, LDO_4_VOLTAGE, 7, 0x3f, dldo), + AS3711_REG(LDO_5, LDO_5_VOLTAGE, 7, 0x3f, dldo), + AS3711_REG(LDO_6, LDO_6_VOLTAGE, 7, 0x3f, dldo), + AS3711_REG(LDO_7, LDO_7_VOLTAGE, 7, 0x3f, dldo), + AS3711_REG(LDO_8, LDO_8_VOLTAGE, 7, 0x3f, dldo), /* StepUp output voltage depends on supplying regulator */ }; @@ -263,7 +259,6 @@ static int as3711_regulator_probe(struct platform_device *pdev) ri->desc.name); return PTR_ERR(rdev); } - reg->rdev = rdev; } platform_set_drvdata(pdev, regs); return 0; From e0f6429ecb0cc1d1cb39017135b658960e5b8417 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 7 Sep 2014 18:38:49 +0800 Subject: [PATCH 45/71] regulator: bcm590xx: Remove unused **info field from struct bcm590xx_reg Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/bcm590xx-regulator.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/regulator/bcm590xx-regulator.c b/drivers/regulator/bcm590xx-regulator.c index 5d1fd6f3d10a..fe6ac69549a6 100644 --- a/drivers/regulator/bcm590xx-regulator.c +++ b/drivers/regulator/bcm590xx-regulator.c @@ -202,7 +202,6 @@ static struct bcm590xx_info bcm590xx_regs[] = { struct bcm590xx_reg { struct regulator_desc *desc; struct bcm590xx *mfd; - struct bcm590xx_info **info; }; static int bcm590xx_get_vsel_register(int id) @@ -389,11 +388,6 @@ static int bcm590xx_probe(struct platform_device *pdev) if (!pmu->desc) return -ENOMEM; - pmu->info = devm_kzalloc(&pdev->dev, BCM590XX_NUM_REGS * - sizeof(struct bcm590xx_info *), GFP_KERNEL); - if (!pmu->info) - return -ENOMEM; - info = bcm590xx_regs; for (i = 0; i < BCM590XX_NUM_REGS; i++, info++) { @@ -403,8 +397,6 @@ static int bcm590xx_probe(struct platform_device *pdev) reg_data = NULL; /* Register the regulators */ - pmu->info[i] = info; - pmu->desc[i].name = info->name; pmu->desc[i].supply_name = info->vin_name; pmu->desc[i].id = i; From c2542d2a867c22540c8ad64883288eabb891568d Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sun, 7 Sep 2014 16:22:01 +0100 Subject: [PATCH 46/71] regulator: tps65217: Remove unused driver_data from of_match table We don't ever reference the driver_data we supply so remove it. Signed-off-by: Mark Brown --- drivers/regulator/tps65217-regulator.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c index 1cf16aed9735..42315468ec68 100644 --- a/drivers/regulator/tps65217-regulator.c +++ b/drivers/regulator/tps65217-regulator.c @@ -171,13 +171,13 @@ static const struct regulator_desc regulators[] = { #ifdef CONFIG_OF static struct of_regulator_match reg_matches[] = { - { .name = "dcdc1", .driver_data = (void *)TPS65217_DCDC_1 }, - { .name = "dcdc2", .driver_data = (void *)TPS65217_DCDC_2 }, - { .name = "dcdc3", .driver_data = (void *)TPS65217_DCDC_3 }, - { .name = "ldo1", .driver_data = (void *)TPS65217_LDO_1 }, - { .name = "ldo2", .driver_data = (void *)TPS65217_LDO_2 }, - { .name = "ldo3", .driver_data = (void *)TPS65217_LDO_3 }, - { .name = "ldo4", .driver_data = (void *)TPS65217_LDO_4 }, + { .name = "dcdc1" }, + { .name = "dcdc2" }, + { .name = "dcdc3" }, + { .name = "ldo1" }, + { .name = "ldo2" }, + { .name = "ldo3" }, + { .name = "ldo4" }, }; static struct tps65217_board *tps65217_parse_dt(struct platform_device *pdev) From 571a4010847a8b03c88de6543c5c00878a7e97d3 Mon Sep 17 00:00:00 2001 From: Chris Zhong Date: Wed, 10 Sep 2014 09:18:06 +0800 Subject: [PATCH 47/71] regulator: rk808: Remove pdata from the regulator Signed-off-by: Chris Zhong Tested-by: Heiko Stuebner Reviewed-by: Doug Anderson Tested-by: Doug Anderson Signed-off-by: Mark Brown --- drivers/regulator/rk808-regulator.c | 89 ++++++----------------------- 1 file changed, 17 insertions(+), 72 deletions(-) diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c index e3720085b4ce..d91f2b658080 100644 --- a/drivers/regulator/rk808-regulator.c +++ b/drivers/regulator/rk808-regulator.c @@ -14,24 +14,16 @@ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. - * */ #include -#include #include -#include -#include #include -#include #include #include #include -#include -#include -/* - * Field Definitions. - */ + +/* Field Definitions */ #define RK808_BUCK_VSEL_MASK 0x3f #define RK808_BUCK4_VSEL_MASK 0xf #define RK808_LDO_VSEL_MASK 0x1f @@ -50,10 +42,6 @@ static const int buck_contr_base_addr[] = { RK808_BUCK4_CONFIG_REG, }; -#define rk808_BUCK_SET_VOL_REG(x) (buck_set_vol_base_addr[x]) -#define rk808_BUCK_CONTR_REG(x) (buck_contr_base_addr[x]) -#define rk808_LDO_SET_VOL_REG(x) (ldo_set_vol_base_addr[x]) - static const int ldo_set_vol_base_addr[] = { RK808_LDO1_ON_VSEL_REG, RK808_LDO2_ON_VSEL_REG, @@ -65,9 +53,7 @@ static const int ldo_set_vol_base_addr[] = { RK808_LDO8_ON_VSEL_REG, }; -/* - * rk808 voltage number - */ +/* rk808 voltage number */ static const struct regulator_linear_range rk808_buck_voltage_ranges[] = { REGULATOR_LINEAR_RANGE(700000, 0, 63, 12500), }; @@ -308,77 +294,35 @@ static struct of_regulator_match rk808_reg_matches[] = { [RK808_ID_SWITCH2] = { .name = "SWITCH_REG2" }, }; -static int rk808_regulator_dts(struct i2c_client *client, - struct rk808_board *pdata) +static int rk808_regulator_probe(struct platform_device *pdev) { - struct device_node *np, *reg_np; - int i, ret; + struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent); + struct i2c_client *client = rk808->i2c; + struct device_node *reg_np; + struct regulator_config config = {}; + struct regulator_dev *rk808_rdev; + int ret, i; - np = client->dev.of_node; - if (!np) { - dev_err(&client->dev, "could not find pmic sub-node\n"); - return -ENXIO; - } - - reg_np = of_get_child_by_name(np, "regulators"); + reg_np = of_get_child_by_name(client->dev.of_node, "regulators"); if (!reg_np) return -ENXIO; ret = of_regulator_match(&client->dev, reg_np, rk808_reg_matches, RK808_NUM_REGULATORS); - if (ret < 0) { - dev_err(&client->dev, - "failed to parse regulator data: %d\n", ret); + if (ret < 0) return ret; - } + /* Instantiate the regulators */ for (i = 0; i < RK808_NUM_REGULATORS; i++) { if (!rk808_reg_matches[i].init_data || !rk808_reg_matches[i].of_node) continue; - pdata->rk808_init_data[i] = rk808_reg_matches[i].init_data; - pdata->of_node[i] = rk808_reg_matches[i].of_node; - } - - return 0; -} - -static int rk808_regulator_probe(struct platform_device *pdev) -{ - struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent); - struct i2c_client *client = rk808->i2c; - struct rk808_board *pdata = dev_get_platdata(&client->dev); - struct regulator_config config = {}; - struct regulator_dev *rk808_rdev; - struct regulator_init_data *reg_data; - int i = 0; - int ret = 0; - - if (!pdata) { - pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); - if (!pdata) - return -ENOMEM; - } - - ret = rk808_regulator_dts(client, pdata); - if (ret) - return ret; - - /* Instantiate the regulators */ - for (i = 0; i < RK808_NUM_REGULATORS; i++) { - reg_data = pdata->rk808_init_data[i]; - if (!reg_data) - continue; - config.dev = &client->dev; config.driver_data = rk808; config.regmap = rk808->regmap; - - if (client->dev.of_node) - config.of_node = pdata->of_node[i]; - - config.init_data = reg_data; + config.of_node = rk808_reg_matches[i].of_node; + config.init_data = rk808_reg_matches[i].init_data; rk808_rdev = devm_regulator_register(&pdev->dev, &rk808_reg[i], &config); @@ -388,6 +332,7 @@ static int rk808_regulator_probe(struct platform_device *pdev) return PTR_ERR(rk808_rdev); } } + return 0; } @@ -403,6 +348,6 @@ module_platform_driver(rk808_regulator_driver); MODULE_DESCRIPTION("regulator driver for the rk808 series PMICs"); MODULE_AUTHOR("Chris Zhong"); -MODULE_AUTHOR("Zhang Qing"); +MODULE_AUTHOR("Zhang Qing"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:rk808-regulator"); From a0c7b164ad115ec0556dc0904ee2218cbc5cedfa Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 9 Sep 2014 23:13:57 +0100 Subject: [PATCH 48/71] regulator: of: Provide simplified DT parsing method Currently regulator drivers which support DT all repeat very similar code to supply a list of known regulator identifiers to be matched with DT, convert that to platform data which is then matched up with the regulators as they are registered. This is both fiddly to get right and for devices which can use the standard helpers to provide their operations is the main source of code in the driver. Since this code is essentially identical for most drivers we can factor it out into the core, moving the identifiers in the match table into the regulator descriptors and also allowing drivers to pass in the name of the subnode to search. When a driver provides an of_match string for the regulator the core will attempt to use that to obtain init_data, allowing the driver to remove all explicit code for DT parsing and simply provide data instead. The current code leaks the phandles for the child nodes, this will be addressed incrementally and makes no practical difference for FDT anyway as the DT data structures are never freed. Signed-off-by: Mark Brown --- drivers/regulator/core.c | 10 +++++-- drivers/regulator/internal.h | 4 +++ drivers/regulator/of_regulator.c | 51 ++++++++++++++++++++++++++++++++ include/linux/regulator/driver.h | 4 +++ 4 files changed, 66 insertions(+), 3 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index a3c3785901f5..496002efd961 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -3516,12 +3516,17 @@ regulator_register(const struct regulator_desc *regulator_desc, return ERR_PTR(-EINVAL); } - init_data = config->init_data; - rdev = kzalloc(sizeof(struct regulator_dev), GFP_KERNEL); if (rdev == NULL) return ERR_PTR(-ENOMEM); + init_data = regulator_of_get_init_data(dev, regulator_desc, + &rdev->dev.of_node); + if (!init_data) { + init_data = config->init_data; + rdev->dev.of_node = of_node_get(config->of_node); + } + mutex_lock(®ulator_list_mutex); mutex_init(&rdev->mutex); @@ -3548,7 +3553,6 @@ regulator_register(const struct regulator_desc *regulator_desc, /* register with sysfs */ rdev->dev.class = ®ulator_class; - rdev->dev.of_node = of_node_get(config->of_node); rdev->dev.parent = dev; dev_set_name(&rdev->dev, "regulator.%d", atomic_inc_return(®ulator_no) - 1); diff --git a/drivers/regulator/internal.h b/drivers/regulator/internal.h index 84bbda10c396..a6043ad32ead 100644 --- a/drivers/regulator/internal.h +++ b/drivers/regulator/internal.h @@ -35,4 +35,8 @@ struct regulator { struct dentry *debugfs; }; +struct regulator_init_data *regulator_of_get_init_data(struct device *dev, + const struct regulator_desc *desc, + struct device_node **node); + #endif diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c index ee5e67bc8d5b..7a51814abdc5 100644 --- a/drivers/regulator/of_regulator.c +++ b/drivers/regulator/of_regulator.c @@ -14,8 +14,11 @@ #include #include #include +#include #include +#include "internal.h" + static void of_get_regulation_constraints(struct device_node *np, struct regulator_init_data **init_data) { @@ -189,3 +192,51 @@ int of_regulator_match(struct device *dev, struct device_node *node, return count; } EXPORT_SYMBOL_GPL(of_regulator_match); + +struct regulator_init_data *regulator_of_get_init_data(struct device *dev, + const struct regulator_desc *desc, + struct device_node **node) +{ + struct device_node *search, *child; + struct regulator_init_data *init_data = NULL; + const char *name; + + if (!dev->of_node || !desc->of_match) + return NULL; + + if (desc->regulators_node) + search = of_get_child_by_name(dev->of_node, + desc->regulators_node); + else + search = dev->of_node; + + if (!search) { + dev_err(dev, "Failed to find regulator container node\n"); + return NULL; + } + + for_each_child_of_node(search, child) { + name = of_get_property(child, "regulator-compatible", NULL); + if (!name) + name = child->name; + + if (strcmp(desc->of_match, name)) + continue; + + init_data = of_get_regulator_init_data(dev, child); + if (!init_data) { + dev_err(dev, + "failed to parse DT for regulator %s\n", + child->name); + break; + } + + of_node_get(child); + *node = child; + break; + } + + of_node_put(search); + + return init_data; +} diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index bbe03a1924c0..c35f5f97a147 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -203,6 +203,8 @@ enum regulator_type { * * @name: Identifying name for the regulator. * @supply_name: Identifying the regulator supply + * @of_match: Name used to identify regulator in DT. + * @regulators_node: Name of node containing regulator definitions in DT. * @id: Numerical identifier for the regulator. * @ops: Regulator operations table. * @irq: Interrupt number for the regulator. @@ -242,6 +244,8 @@ enum regulator_type { struct regulator_desc { const char *name; const char *supply_name; + const char *of_match; + const char *regulators_node; int id; bool continuous_voltage_range; unsigned n_voltages; From 7d42a7f293da03387cd8737a360c89c81640b67d Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 9 Sep 2014 23:16:11 +0100 Subject: [PATCH 49/71] regulator: tps65217: Use simplified DT parsing Remove a bunch of code in favour of data. Signed-off-by: Mark Brown --- drivers/regulator/tps65217-regulator.c | 106 +++++++------------------ 1 file changed, 29 insertions(+), 77 deletions(-) diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c index 42315468ec68..adbe4fc5cf07 100644 --- a/drivers/regulator/tps65217-regulator.c +++ b/drivers/regulator/tps65217-regulator.c @@ -27,10 +27,13 @@ #include #include -#define TPS65217_REGULATOR(_name, _id, _ops, _n, _vr, _vm, _em, _t, _lr, _nlr) \ +#define TPS65217_REGULATOR(_name, _id, _of_match, _ops, _n, _vr, _vm, _em, \ + _t, _lr, _nlr) \ { \ .name = _name, \ .id = _id, \ + .of_match = of_match_ptr(_of_match), \ + .regulators_node= of_match_ptr("regulators"), \ .ops = &_ops, \ .n_voltages = _n, \ .type = REGULATOR_VOLTAGE, \ @@ -138,87 +141,40 @@ static struct regulator_ops tps65217_pmic_ldo1_ops = { }; static const struct regulator_desc regulators[] = { - TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1, tps65217_pmic_ops, 64, - TPS65217_REG_DEFDCDC1, TPS65217_DEFDCDCX_DCDC_MASK, - TPS65217_ENABLE_DC1_EN, NULL, tps65217_uv1_ranges, - 2), /* DCDC1 voltage range: 900000 ~ 1800000 */ - TPS65217_REGULATOR("DCDC2", TPS65217_DCDC_2, tps65217_pmic_ops, 64, - TPS65217_REG_DEFDCDC2, TPS65217_DEFDCDCX_DCDC_MASK, - TPS65217_ENABLE_DC2_EN, NULL, tps65217_uv1_ranges, + TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1, "dcdc1", + tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC1, + TPS65217_DEFDCDCX_DCDC_MASK, TPS65217_ENABLE_DC1_EN, + NULL, tps65217_uv1_ranges, 2), + TPS65217_REGULATOR("DCDC2", TPS65217_DCDC_2, "dcdc2", + tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC2, + TPS65217_DEFDCDCX_DCDC_MASK, TPS65217_ENABLE_DC2_EN, + NULL, tps65217_uv1_ranges, ARRAY_SIZE(tps65217_uv1_ranges)), - TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3, tps65217_pmic_ops, 64, - TPS65217_REG_DEFDCDC3, TPS65217_DEFDCDCX_DCDC_MASK, - TPS65217_ENABLE_DC3_EN, NULL, tps65217_uv1_ranges, - 1), /* DCDC3 voltage range: 900000 ~ 1500000 */ - TPS65217_REGULATOR("LDO1", TPS65217_LDO_1, tps65217_pmic_ldo1_ops, 16, - TPS65217_REG_DEFLDO1, TPS65217_DEFLDO1_LDO1_MASK, - TPS65217_ENABLE_LDO1_EN, LDO1_VSEL_table, NULL, 0), - TPS65217_REGULATOR("LDO2", TPS65217_LDO_2, tps65217_pmic_ops, 64, - TPS65217_REG_DEFLDO2, TPS65217_DEFLDO2_LDO2_MASK, - TPS65217_ENABLE_LDO2_EN, NULL, tps65217_uv1_ranges, + TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3, "dcdc3", + tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC3, + TPS65217_DEFDCDCX_DCDC_MASK, TPS65217_ENABLE_DC3_EN, + NULL, tps65217_uv1_ranges, 1), + TPS65217_REGULATOR("LDO1", TPS65217_LDO_1, "ldo1", + tps65217_pmic_ldo1_ops, 16, TPS65217_REG_DEFLDO1, + TPS65217_DEFLDO1_LDO1_MASK, TPS65217_ENABLE_LDO1_EN, + LDO1_VSEL_table, NULL, 0), + TPS65217_REGULATOR("LDO2", TPS65217_LDO_2, "ldo2", tps65217_pmic_ops, + 64, TPS65217_REG_DEFLDO2, + TPS65217_DEFLDO2_LDO2_MASK, TPS65217_ENABLE_LDO2_EN, + NULL, tps65217_uv1_ranges, ARRAY_SIZE(tps65217_uv1_ranges)), - TPS65217_REGULATOR("LDO3", TPS65217_LDO_3, tps65217_pmic_ops, 32, - TPS65217_REG_DEFLS1, TPS65217_DEFLDO3_LDO3_MASK, + TPS65217_REGULATOR("LDO3", TPS65217_LDO_3, "ldo3", tps65217_pmic_ops, + 32, TPS65217_REG_DEFLS1, TPS65217_DEFLDO3_LDO3_MASK, TPS65217_ENABLE_LS1_EN | TPS65217_DEFLDO3_LDO3_EN, NULL, tps65217_uv2_ranges, ARRAY_SIZE(tps65217_uv2_ranges)), - TPS65217_REGULATOR("LDO4", TPS65217_LDO_4, tps65217_pmic_ops, 32, - TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK, + TPS65217_REGULATOR("LDO4", TPS65217_LDO_4, "ldo4", tps65217_pmic_ops, + 32, TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK, TPS65217_ENABLE_LS2_EN | TPS65217_DEFLDO4_LDO4_EN, NULL, tps65217_uv2_ranges, ARRAY_SIZE(tps65217_uv2_ranges)), }; -#ifdef CONFIG_OF -static struct of_regulator_match reg_matches[] = { - { .name = "dcdc1" }, - { .name = "dcdc2" }, - { .name = "dcdc3" }, - { .name = "ldo1" }, - { .name = "ldo2" }, - { .name = "ldo3" }, - { .name = "ldo4" }, -}; - -static struct tps65217_board *tps65217_parse_dt(struct platform_device *pdev) -{ - struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent); - struct device_node *node = tps->dev->of_node; - struct tps65217_board *pdata; - struct device_node *regs; - int i, count; - - regs = of_get_child_by_name(node, "regulators"); - if (!regs) - return NULL; - - count = of_regulator_match(&pdev->dev, regs, reg_matches, - TPS65217_NUM_REGULATOR); - of_node_put(regs); - if ((count < 0) || (count > TPS65217_NUM_REGULATOR)) - return NULL; - - pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); - if (!pdata) - return NULL; - - for (i = 0; i < count; i++) { - if (!reg_matches[i].of_node) - continue; - - pdata->tps65217_init_data[i] = reg_matches[i].init_data; - pdata->of_node[i] = reg_matches[i].of_node; - } - - return pdata; -} -#else -static struct tps65217_board *tps65217_parse_dt(struct platform_device *pdev) -{ - return NULL; -} -#endif - static int tps65217_regulator_probe(struct platform_device *pdev) { struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent); @@ -227,9 +183,6 @@ static int tps65217_regulator_probe(struct platform_device *pdev) struct regulator_config config = { }; int i; - if (tps->dev->of_node) - pdata = tps65217_parse_dt(pdev); - if (tps65217_chip_id(tps) != TPS65217) { dev_err(&pdev->dev, "Invalid tps chip version\n"); return -ENODEV; @@ -244,8 +197,6 @@ static int tps65217_regulator_probe(struct platform_device *pdev) config.init_data = pdata->tps65217_init_data[i]; config.driver_data = tps; config.regmap = tps->regmap; - if (tps->dev->of_node) - config.of_node = pdata->of_node[i]; rdev = devm_regulator_register(&pdev->dev, ®ulators[i], &config); @@ -255,6 +206,7 @@ static int tps65217_regulator_probe(struct platform_device *pdev) return PTR_ERR(rdev); } } + return 0; } From 93a127b11ac034b160ccdd32e27d791b98f52cf5 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 10 Sep 2014 12:18:56 +0100 Subject: [PATCH 50/71] regulator: isl9305: Convert to new style DT parsing This removes some code and replaces it with data. Signed-off-by: Mark Brown --- drivers/regulator/isl9305.c | 62 +++++++------------------------------ 1 file changed, 11 insertions(+), 51 deletions(-) diff --git a/drivers/regulator/isl9305.c b/drivers/regulator/isl9305.c index b0d12d186b68..92fefd98da58 100644 --- a/drivers/regulator/isl9305.c +++ b/drivers/regulator/isl9305.c @@ -73,6 +73,8 @@ static const struct regulator_ops isl9305_ops = { static const struct regulator_desc isl9305_regulators[] = { [ISL9305_DCD1] = { .name = "DCD1", + .of_match = of_match_ptr("dcd1"), + .regulators_node = of_match_ptr("regulators"), .n_voltages = 0x70, .min_uV = 825000, .uV_step = 25000, @@ -85,6 +87,8 @@ static const struct regulator_desc isl9305_regulators[] = { }, [ISL9305_DCD2] = { .name = "DCD2", + .of_match = of_match_ptr("dcd2"), + .regulators_node = of_match_ptr("regulators"), .n_voltages = 0x70, .min_uV = 825000, .uV_step = 25000, @@ -97,6 +101,8 @@ static const struct regulator_desc isl9305_regulators[] = { }, [ISL9305_LDO1] = { .name = "LDO1", + .of_match = of_match_ptr("ldo1"), + .regulators_node = of_match_ptr("regulators"), .n_voltages = 0x37, .min_uV = 900000, .uV_step = 50000, @@ -109,6 +115,8 @@ static const struct regulator_desc isl9305_regulators[] = { }, [ISL9305_LDO2] = { .name = "LDO2", + .of_match = of_match_ptr("ldo2"), + .regulators_node = of_match_ptr("regulators"), .n_voltages = 0x37, .min_uV = 900000, .uV_step = 50000, @@ -121,45 +129,6 @@ static const struct regulator_desc isl9305_regulators[] = { }, }; -#ifdef CONFIG_OF -static struct of_regulator_match isl9305_reg_matches[] = { - [ISL9305_DCD1] = { .name = "dcd1" }, - [ISL9305_DCD2] = { .name = "dcd2" }, - [ISL9305_LDO1] = { .name = "ldo1" }, - [ISL9305_LDO2] = { .name = "ldo2" }, -}; - -static struct of_regulator_match *isl9305_parse_dt(struct i2c_client *i2c) -{ - struct device_node *node = i2c->dev.of_node; - struct of_regulator_match *matches; - struct device_node *regs; - int count; - - regs = of_get_child_by_name(node, "regulators"); - if (!regs) - return NULL; - - matches = devm_kmemdup(&i2c->dev, isl9305_reg_matches, - sizeof(isl9305_reg_matches), GFP_KERNEL); - if (!matches) - return NULL; - - count = of_regulator_match(&i2c->dev, regs, matches, - ARRAY_SIZE(isl9305_reg_matches)); - of_node_put(regs); - if ((count < 0) || (count > ARRAY_SIZE(isl9305_reg_matches))) - return NULL; - - return matches; -} -#else -static struct of_regulator_match *isl9305_parse_dt(struct i2c_client *i2c) -{ - return NULL; -} -#endif - static const struct regmap_config isl9305_regmap = { .reg_bits = 8, .val_bits = 8, @@ -173,13 +142,10 @@ static int isl9305_i2c_probe(struct i2c_client *i2c, { struct regulator_config config = { }; struct isl9305_pdata *pdata = i2c->dev.platform_data; - struct of_regulator_match *of_matches; struct regulator_dev *rdev; struct regmap *regmap; int i, ret; - of_matches = isl9305_parse_dt(i2c); - regmap = devm_regmap_init_i2c(i2c, &isl9305_regmap); if (IS_ERR(regmap)) { ret = PTR_ERR(regmap); @@ -190,16 +156,10 @@ static int isl9305_i2c_probe(struct i2c_client *i2c, config.dev = &i2c->dev; for (i = 0; i < ARRAY_SIZE(isl9305_regulators); i++) { - config.of_node = NULL; - config.init_data = NULL; - - if (of_matches) { - config.init_data = of_matches[i].init_data; - config.of_node = of_matches[i].of_node; - } - - if (!config.init_data && pdata) + if (pdata) config.init_data = pdata->init_data[i]; + else + config.init_data = NULL; rdev = devm_regulator_register(&i2c->dev, &isl9305_regulators[i], From ba441ec225337a82d06a56a5a874a565564a88e0 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 10 Sep 2014 08:44:36 +0800 Subject: [PATCH 51/71] regulator: isl9305: REGULATOR_ISL9305 needs to select REGMAP_I2C Fix ERROR: "devm_regmap_init_i2c" [drivers/regulator/isl9305.ko] undefined! Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 3c8b6f401e4f..e0ee40054c8d 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -253,6 +253,7 @@ config REGULATOR_HI6421 config REGULATOR_ISL9305 tristate "Intersil ISL9305 regulator" depends on I2C + select REGMAP_I2C help This driver supports ISL9305 voltage regulator chip. From ef126a4a8112998a9d4dcea166781331f1020f76 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 10 Sep 2014 15:17:01 +0100 Subject: [PATCH 52/71] regulator: of: Add stub OF match function for !OF case Signed-off-by: Mark Brown --- drivers/regulator/internal.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/regulator/internal.h b/drivers/regulator/internal.h index a6043ad32ead..80ba2a35a04b 100644 --- a/drivers/regulator/internal.h +++ b/drivers/regulator/internal.h @@ -35,8 +35,18 @@ struct regulator { struct dentry *debugfs; }; +#ifdef CONFIG_OF struct regulator_init_data *regulator_of_get_init_data(struct device *dev, const struct regulator_desc *desc, struct device_node **node); +#else +static inline struct regulator_init_data * +regulator_of_get_init_data(struct device *dev, + const struct regulator_desc *desc, + struct device_node **node) +{ + return NULL; +} +#endif #endif From 1f0c01621aa1beb0f6bc205beeada2a4a3178d5a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 11 Sep 2014 18:21:10 +0800 Subject: [PATCH 53/71] regulator: rk808: Remove unused variables Also remove non-informative comment. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/rk808-regulator.c | 26 -------------------------- 1 file changed, 26 deletions(-) diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c index d91f2b658080..9557428f39a7 100644 --- a/drivers/regulator/rk808-regulator.c +++ b/drivers/regulator/rk808-regulator.c @@ -28,32 +28,6 @@ #define RK808_BUCK4_VSEL_MASK 0xf #define RK808_LDO_VSEL_MASK 0x1f -static const int buck_set_vol_base_addr[] = { - RK808_BUCK1_ON_VSEL_REG, - RK808_BUCK2_ON_VSEL_REG, - RK808_BUCK3_CONFIG_REG, - RK808_BUCK4_ON_VSEL_REG, -}; - -static const int buck_contr_base_addr[] = { - RK808_BUCK1_CONFIG_REG, - RK808_BUCK2_CONFIG_REG, - RK808_BUCK3_CONFIG_REG, - RK808_BUCK4_CONFIG_REG, -}; - -static const int ldo_set_vol_base_addr[] = { - RK808_LDO1_ON_VSEL_REG, - RK808_LDO2_ON_VSEL_REG, - RK808_LDO3_ON_VSEL_REG, - RK808_LDO4_ON_VSEL_REG, - RK808_LDO5_ON_VSEL_REG, - RK808_LDO6_ON_VSEL_REG, - RK808_LDO7_ON_VSEL_REG, - RK808_LDO8_ON_VSEL_REG, -}; - -/* rk808 voltage number */ static const struct regulator_linear_range rk808_buck_voltage_ranges[] = { REGULATOR_LINEAR_RANGE(700000, 0, 63, 12500), }; From 1ed3f8ce8399255c7cca43dde5d3a19b2b7dc287 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 11 Sep 2014 18:22:48 +0800 Subject: [PATCH 54/71] regulator: rk808: Fix missing of_node_put 1. Pass &pdev->dev rather than &client->dev to of_regulator_match, the *dev argument is used for devres to ensure devm_of_regulator_put_matches() will be called when unload the module. 2. of_get_child_by_name() returns a node pointer with refcount incremented. Thus add missing of_node_put(reg_np). Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/rk808-regulator.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c index 9557428f39a7..07b0eb4adf42 100644 --- a/drivers/regulator/rk808-regulator.c +++ b/drivers/regulator/rk808-regulator.c @@ -281,8 +281,9 @@ static int rk808_regulator_probe(struct platform_device *pdev) if (!reg_np) return -ENXIO; - ret = of_regulator_match(&client->dev, reg_np, rk808_reg_matches, + ret = of_regulator_match(&pdev->dev, reg_np, rk808_reg_matches, RK808_NUM_REGULATORS); + of_node_put(reg_np); if (ret < 0) return ret; From 3415d60113f64176114f1bddc09f76c222d85fae Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Sun, 14 Sep 2014 21:23:01 +0200 Subject: [PATCH 55/71] regulator: fan53555: enable vin supply The regulator can be supplied by a parent regulator through its vin pin, so add the supply_name for it. Signed-off-by: Heiko Stuebner Signed-off-by: Mark Brown --- drivers/regulator/fan53555.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c index 714fd9a89aa1..c912ba7bed33 100644 --- a/drivers/regulator/fan53555.c +++ b/drivers/regulator/fan53555.c @@ -207,6 +207,7 @@ static int fan53555_regulator_register(struct fan53555_device_info *di, struct regulator_desc *rdesc = &di->desc; rdesc->name = "fan53555-reg"; + rdesc->supply_name = "vin"; rdesc->ops = &fan53555_regulator_ops; rdesc->type = REGULATOR_VOLTAGE; rdesc->n_voltages = FAN53555_NVOLTAGES; From dd7e71fbeefe9179b94eed81f8b33da06b9bf062 Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Tue, 16 Sep 2014 17:54:01 +0200 Subject: [PATCH 56/71] regulator: fan53555: use set_ramp_delay to set the ramp up slew rate The regulator constraints already provide a field for the ramp_delay, so there is no need to set this manually. Therefore implement the set_ramp_delay callback and convert the pdata value to the constraint value if necessary. Signed-off-by: Heiko Stuebner Signed-off-by: Mark Brown --- drivers/regulator/fan53555.c | 53 ++++++++++++++++++++++++++++-------- 1 file changed, 42 insertions(+), 11 deletions(-) diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c index c912ba7bed33..5808435cfae0 100644 --- a/drivers/regulator/fan53555.c +++ b/drivers/regulator/fan53555.c @@ -135,6 +135,38 @@ static unsigned int fan53555_get_mode(struct regulator_dev *rdev) return REGULATOR_MODE_NORMAL; } +static int slew_rates[] = { + 64000, + 32000, + 16000, + 8000, + 4000, + 2000, + 1000, + 500, +}; + +static int fan53555_set_ramp(struct regulator_dev *rdev, int ramp) +{ + struct fan53555_device_info *di = rdev_get_drvdata(rdev); + int regval = -1, i; + + for (i = 0; i < ARRAY_SIZE(slew_rates); i++) { + if (ramp <= slew_rates[i]) + regval = i; + else + break; + } + + if (regval < 0) { + dev_err(di->dev, "unsupported ramp value %d\n", ramp); + return -EINVAL; + } + + return regmap_update_bits(di->regmap, FAN53555_CONTROL, + CTL_SLEW_MASK, regval << CTL_SLEW_SHIFT); +} + static struct regulator_ops fan53555_regulator_ops = { .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, @@ -146,6 +178,7 @@ static struct regulator_ops fan53555_regulator_ops = { .is_enabled = regulator_is_enabled_regmap, .set_mode = fan53555_set_mode, .get_mode = fan53555_get_mode, + .set_ramp_delay = fan53555_set_ramp, }; /* For 00,01,03,05 options: @@ -156,8 +189,6 @@ static struct regulator_ops fan53555_regulator_ops = { static int fan53555_device_setup(struct fan53555_device_info *di, struct fan53555_platform_data *pdata) { - unsigned int reg, data, mask; - /* Setup voltage control register */ switch (pdata->sleep_vsel_id) { case FAN53555_VSEL_ID_0: @@ -190,15 +221,8 @@ static int fan53555_device_setup(struct fan53555_device_info *di, "Chip ID[%d]\n not supported!\n", di->chip_id); return -EINVAL; } - /* Init slew rate */ - if (pdata->slew_rate & 0x7) - di->slew_rate = pdata->slew_rate; - else - di->slew_rate = FAN53555_SLEW_RATE_64MV; - reg = FAN53555_CONTROL; - data = di->slew_rate << CTL_SLEW_SHIFT; - mask = CTL_SLEW_MASK; - return regmap_update_bits(di->regmap, reg, mask, data); + + return 0; } static int fan53555_regulator_register(struct fan53555_device_info *di, @@ -248,6 +272,13 @@ static int fan53555_regulator_probe(struct i2c_client *client, if (!di) return -ENOMEM; + /* if no ramp constraint set, get the pdata ramp_delay */ + if (!di->regulator->constraints.ramp_delay) { + int slew_idx = (pdata->slew_rate & 0x7) ? pdata->slew_rate : 0; + + di->regulator->constraints.ramp_delay = slew_rates[slew_idx]; + } + di->regmap = devm_regmap_init_i2c(client, &fan53555_regmap_config); if (IS_ERR(di->regmap)) { dev_err(&client->dev, "Failed to allocate regmap!\n"); From 8af252272a0d634b59c4c7fa88200b06695decde Mon Sep 17 00:00:00 2001 From: Doug Anderson Date: Tue, 16 Sep 2014 10:22:54 -0700 Subject: [PATCH 57/71] regulator: rk808: Add function for ramp delay for buck1/buck2 On rk808 buck1 and buck2 have programmable ramp delays. Let's add a function to allow a client of rk808 to set them. Signed-off-by: Doug Anderson Signed-off-by: Mark Brown --- drivers/regulator/rk808-regulator.c | 57 ++++++++++++++++++++++++++++- 1 file changed, 55 insertions(+), 2 deletions(-) diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c index 07b0eb4adf42..e305416d7697 100644 --- a/drivers/regulator/rk808-regulator.c +++ b/drivers/regulator/rk808-regulator.c @@ -28,6 +28,21 @@ #define RK808_BUCK4_VSEL_MASK 0xf #define RK808_LDO_VSEL_MASK 0x1f +/* Ramp rate definitions for buck1 / buck2 only */ +#define RK808_RAMP_RATE_OFFSET 3 +#define RK808_RAMP_RATE_MASK (3 << RK808_RAMP_RATE_OFFSET) +#define RK808_RAMP_RATE_2MV_PER_US (0 << RK808_RAMP_RATE_OFFSET) +#define RK808_RAMP_RATE_4MV_PER_US (1 << RK808_RAMP_RATE_OFFSET) +#define RK808_RAMP_RATE_6MV_PER_US (2 << RK808_RAMP_RATE_OFFSET) +#define RK808_RAMP_RATE_10MV_PER_US (3 << RK808_RAMP_RATE_OFFSET) + +static const int rk808_buck_config_regs[] = { + RK808_BUCK1_CONFIG_REG, + RK808_BUCK2_CONFIG_REG, + RK808_BUCK3_CONFIG_REG, + RK808_BUCK4_CONFIG_REG, +}; + static const struct regulator_linear_range rk808_buck_voltage_ranges[] = { REGULATOR_LINEAR_RANGE(700000, 0, 63, 12500), }; @@ -49,6 +64,44 @@ static const struct regulator_linear_range rk808_ldo6_voltage_ranges[] = { REGULATOR_LINEAR_RANGE(800000, 0, 17, 100000), }; +static int rk808_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) +{ + unsigned int ramp_value = RK808_RAMP_RATE_10MV_PER_US; + unsigned int reg = rk808_buck_config_regs[rdev->desc->id - + RK808_ID_DCDC1]; + + switch (ramp_delay) { + case 1 ... 2000: + ramp_value = RK808_RAMP_RATE_2MV_PER_US; + break; + case 2001 ... 4000: + ramp_value = RK808_RAMP_RATE_4MV_PER_US; + break; + case 4001 ... 6000: + ramp_value = RK808_RAMP_RATE_6MV_PER_US; + break; + case 6001 ... 10000: + break; + default: + pr_warn("%s ramp_delay: %d not supported, setting 10000\n", + rdev->desc->name, ramp_delay); + } + + return regmap_update_bits(rdev->regmap, reg, + RK808_RAMP_RATE_MASK, ramp_value); +} + +static struct regulator_ops rk808_buck1_2_ops = { + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .set_ramp_delay = rk808_set_ramp_delay, +}; + static struct regulator_ops rk808_reg_ops = { .list_voltage = regulator_list_voltage_linear_range, .map_voltage = regulator_map_voltage_linear_range, @@ -70,7 +123,7 @@ static const struct regulator_desc rk808_reg[] = { .name = "DCDC_REG1", .supply_name = "vcc1", .id = RK808_ID_DCDC1, - .ops = &rk808_reg_ops, + .ops = &rk808_buck1_2_ops, .type = REGULATOR_VOLTAGE, .n_voltages = 64, .linear_ranges = rk808_buck_voltage_ranges, @@ -84,7 +137,7 @@ static const struct regulator_desc rk808_reg[] = { .name = "DCDC_REG2", .supply_name = "vcc2", .id = RK808_ID_DCDC2, - .ops = &rk808_reg_ops, + .ops = &rk808_buck1_2_ops, .type = REGULATOR_VOLTAGE, .n_voltages = 64, .linear_ranges = rk808_buck_voltage_ranges, From ed801b4046beead31cb83e78a5758497c0a6c3a6 Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Tue, 16 Sep 2014 21:22:52 +0200 Subject: [PATCH 58/71] regulator: add devicetree bindings for Fairchild FAN53555 regulators Document the regulator and add a fairchild vendor-prefix. Signed-off-by: Heiko Stuebner Signed-off-by: Mark Brown --- .../bindings/regulator/fan53555.txt | 23 +++++++++++++++++++ .../devicetree/bindings/vendor-prefixes.txt | 1 + 2 files changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/fan53555.txt diff --git a/Documentation/devicetree/bindings/regulator/fan53555.txt b/Documentation/devicetree/bindings/regulator/fan53555.txt new file mode 100644 index 000000000000..b183738d6ca9 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/fan53555.txt @@ -0,0 +1,23 @@ +Binding for Fairchild FAN53555 regulators + +Required properties: + - compatible: "fcs,fan53555" + - reg: I2C address + +Optional properties: + - fcs,suspend-voltage-selector: declare which of the two available + voltage selector registers should be used for the suspend + voltage. The other one is used for the runtime voltage setting + Possible values are either <0> or <1> + - vin-supply: regulator supplying the vin pin + +Example: + + regulator@40 { + compatible = "fcs,fan53555"; + regulator-name = "fan53555"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1800000>; + vin-supply = <&parent_reg>; + fcs,suspend-voltage-selector = <1>; + }; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index ac7269f90764..24b92b31f2b5 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -49,6 +49,7 @@ epson Seiko Epson Corp. est ESTeem Wireless Modems eukrea Eukréa Electromatique excito Excito +fcs Fairchild Semiconductor fsl Freescale Semiconductor GEFanuc GE Fanuc Intelligent Platforms Embedded Systems, Inc. gef GE Fanuc Intelligent Platforms Embedded Systems, Inc. From 91f23d8fb67c90a50676e4db9260a21647ef753f Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Tue, 16 Sep 2014 21:22:53 +0200 Subject: [PATCH 59/71] regulator: fan53555: add devicetree support Add the ability to parse regulator-data from the devicetree. Signed-off-by: Heiko Stuebner Signed-off-by: Mark Brown --- drivers/regulator/fan53555.c | 50 +++++++++++++++++++++++++++++++++--- 1 file changed, 46 insertions(+), 4 deletions(-) diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c index 5808435cfae0..fa29ba052841 100644 --- a/drivers/regulator/fan53555.c +++ b/drivers/regulator/fan53555.c @@ -18,6 +18,8 @@ #include #include #include +#include +#include #include #include #include @@ -252,9 +254,39 @@ static struct regmap_config fan53555_regmap_config = { .val_bits = 8, }; +static struct fan53555_platform_data *fan53555_parse_dt(struct device *dev, + struct device_node *np) +{ + struct fan53555_platform_data *pdata; + int ret; + u32 tmp; + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return NULL; + + pdata->regulator = of_get_regulator_init_data(dev, np); + + ret = of_property_read_u32(np, "fcs,suspend-voltage-selector", + &tmp); + if (!ret) + pdata->sleep_vsel_id = tmp; + + return pdata; +} + +static const struct of_device_id fan53555_dt_ids[] = { + { + .compatible = "fcs,fan53555", + }, + { } +}; +MODULE_DEVICE_TABLE(of, fan53555_dt_ids); + static int fan53555_regulator_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device_node *np = client->dev.of_node; struct fan53555_device_info *di; struct fan53555_platform_data *pdata; struct regulator_config config = { }; @@ -262,6 +294,9 @@ static int fan53555_regulator_probe(struct i2c_client *client, int ret; pdata = dev_get_platdata(&client->dev); + if (!pdata) + pdata = fan53555_parse_dt(&client->dev, np); + if (!pdata || !pdata->regulator) { dev_err(&client->dev, "Platform data not found!\n"); return -ENODEV; @@ -272,11 +307,15 @@ static int fan53555_regulator_probe(struct i2c_client *client, if (!di) return -ENOMEM; - /* if no ramp constraint set, get the pdata ramp_delay */ - if (!di->regulator->constraints.ramp_delay) { - int slew_idx = (pdata->slew_rate & 0x7) ? pdata->slew_rate : 0; + if (!client->dev.of_node) { + /* if no ramp constraint set, get the pdata ramp_delay */ + if (!di->regulator->constraints.ramp_delay) { + int slew_idx = (pdata->slew_rate & 0x7) + ? pdata->slew_rate : 0; - di->regulator->constraints.ramp_delay = slew_rates[slew_idx]; + di->regulator->constraints.ramp_delay + = slew_rates[slew_idx]; + } } di->regmap = devm_regmap_init_i2c(client, &fan53555_regmap_config); @@ -314,6 +353,8 @@ static int fan53555_regulator_probe(struct i2c_client *client, config.init_data = di->regulator; config.regmap = di->regmap; config.driver_data = di; + config.of_node = np; + ret = fan53555_regulator_register(di, &config); if (ret < 0) dev_err(&client->dev, "Failed to register regulator!\n"); @@ -329,6 +370,7 @@ static const struct i2c_device_id fan53555_id[] = { static struct i2c_driver fan53555_regulator_driver = { .driver = { .name = "fan53555-regulator", + .of_match_table = of_match_ptr(fan53555_dt_ids), }, .probe = fan53555_regulator_probe, .id_table = fan53555_id, From ee30928ab616786cae926c5c2efaa4303ba66802 Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Tue, 16 Sep 2014 21:22:54 +0200 Subject: [PATCH 60/71] regulator: fan53555: add support for Silergy SYR82x regulators Silergy SYR82x regulators share the exact same functionality and register layout as the Fairchild FAN53555 regulators. Therefore extend the driver to add support for them. Both types use the same vendor id in their ID1 register, so it's not possible to distinguish them automatically. Similarly, the types also do not match. Type 8 used by the SYR827 and SYR828 start at 712.5mV and increment in 12.5mv steps, while the FAN53555 type 8 starts at 600mV and increments in 10mV steps. Signed-off-by: Heiko Stuebner Signed-off-by: Mark Brown --- .../bindings/regulator/fan53555.txt | 2 +- .../devicetree/bindings/vendor-prefixes.txt | 1 + drivers/regulator/fan53555.c | 120 ++++++++++++++---- 3 files changed, 98 insertions(+), 25 deletions(-) diff --git a/Documentation/devicetree/bindings/regulator/fan53555.txt b/Documentation/devicetree/bindings/regulator/fan53555.txt index b183738d6ca9..54a3f2c80e3a 100644 --- a/Documentation/devicetree/bindings/regulator/fan53555.txt +++ b/Documentation/devicetree/bindings/regulator/fan53555.txt @@ -1,7 +1,7 @@ Binding for Fairchild FAN53555 regulators Required properties: - - compatible: "fcs,fan53555" + - compatible: one of "fcs,fan53555", "silergy,syr827", "silergy,syr828" - reg: I2C address Optional properties: diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 24b92b31f2b5..6073e76575ea 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -125,6 +125,7 @@ sil Silicon Image silabs Silicon Laboratories simtek sii Seiko Instruments, Inc. +silergy Silergy Corp. sirf SiRF Technology, Inc. smsc Standard Microsystems Corporation snps Synopsys, Inc. diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c index fa29ba052841..f2f5535099a0 100644 --- a/drivers/regulator/fan53555.c +++ b/drivers/regulator/fan53555.c @@ -52,6 +52,11 @@ #define FAN53555_NVOLTAGES 64 /* Numbers of voltages */ +enum fan53555_vendor { + FAN53555_VENDOR_FAIRCHILD = 0, + FAN53555_VENDOR_SILERGY, +}; + /* IC Type */ enum { FAN53555_CHIP_ID_00 = 0, @@ -62,7 +67,12 @@ enum { FAN53555_CHIP_ID_05, }; +enum { + SILERGY_SYR82X = 8, +}; + struct fan53555_device_info { + enum fan53555_vendor vendor; struct regmap *regmap; struct device *dev; struct regulator_desc desc; @@ -183,28 +193,8 @@ static struct regulator_ops fan53555_regulator_ops = { .set_ramp_delay = fan53555_set_ramp, }; -/* For 00,01,03,05 options: - * VOUT = 0.60V + NSELx * 10mV, from 0.60 to 1.23V. - * For 04 option: - * VOUT = 0.603V + NSELx * 12.826mV, from 0.603 to 1.411V. - * */ -static int fan53555_device_setup(struct fan53555_device_info *di, - struct fan53555_platform_data *pdata) +static int fan53555_voltages_setup_fairchild(struct fan53555_device_info *di) { - /* Setup voltage control register */ - switch (pdata->sleep_vsel_id) { - case FAN53555_VSEL_ID_0: - di->sleep_reg = FAN53555_VSEL0; - di->vol_reg = FAN53555_VSEL1; - break; - case FAN53555_VSEL_ID_1: - di->sleep_reg = FAN53555_VSEL1; - di->vol_reg = FAN53555_VSEL0; - break; - default: - dev_err(di->dev, "Invalid VSEL ID!\n"); - return -EINVAL; - } /* Init voltage range and step */ switch (di->chip_id) { case FAN53555_CHIP_ID_00: @@ -220,13 +210,71 @@ static int fan53555_device_setup(struct fan53555_device_info *di, break; default: dev_err(di->dev, - "Chip ID[%d]\n not supported!\n", di->chip_id); + "Chip ID %d not supported!\n", di->chip_id); return -EINVAL; } return 0; } +static int fan53555_voltages_setup_silergy(struct fan53555_device_info *di) +{ + /* Init voltage range and step */ + switch (di->chip_id) { + case SILERGY_SYR82X: + di->vsel_min = 712500; + di->vsel_step = 12500; + break; + default: + dev_err(di->dev, + "Chip ID %d not supported!\n", di->chip_id); + return -EINVAL; + } + + return 0; +} + +/* For 00,01,03,05 options: + * VOUT = 0.60V + NSELx * 10mV, from 0.60 to 1.23V. + * For 04 option: + * VOUT = 0.603V + NSELx * 12.826mV, from 0.603 to 1.411V. + * */ +static int fan53555_device_setup(struct fan53555_device_info *di, + struct fan53555_platform_data *pdata) +{ + int ret = 0; + + /* Setup voltage control register */ + switch (pdata->sleep_vsel_id) { + case FAN53555_VSEL_ID_0: + di->sleep_reg = FAN53555_VSEL0; + di->vol_reg = FAN53555_VSEL1; + break; + case FAN53555_VSEL_ID_1: + di->sleep_reg = FAN53555_VSEL1; + di->vol_reg = FAN53555_VSEL0; + break; + default: + dev_err(di->dev, "Invalid VSEL ID!\n"); + return -EINVAL; + } + + switch (di->vendor) { + case FAN53555_VENDOR_FAIRCHILD: + ret = fan53555_voltages_setup_fairchild(di); + break; + case FAN53555_VENDOR_SILERGY: + ret = fan53555_voltages_setup_silergy(di); + break; + default: + dev_err(di->dev, + "vendor %d not supported!\n", di->chip_id); + return -EINVAL; + } + + return ret; +} + static int fan53555_regulator_register(struct fan53555_device_info *di, struct regulator_config *config) { @@ -278,6 +326,13 @@ static struct fan53555_platform_data *fan53555_parse_dt(struct device *dev, static const struct of_device_id fan53555_dt_ids[] = { { .compatible = "fcs,fan53555", + .data = (void *)FAN53555_VENDOR_FAIRCHILD + }, { + .compatible = "silergy,syr827", + .data = (void *)FAN53555_VENDOR_SILERGY, + }, { + .compatible = "silergy,syr828", + .data = (void *)FAN53555_VENDOR_SILERGY, }, { } }; @@ -307,7 +362,16 @@ static int fan53555_regulator_probe(struct i2c_client *client, if (!di) return -ENOMEM; - if (!client->dev.of_node) { + if (client->dev.of_node) { + const struct of_device_id *match; + + match = of_match_device(of_match_ptr(fan53555_dt_ids), + &client->dev); + if (!match) + return -ENODEV; + + di->vendor = (int) match->data; + } else { /* if no ramp constraint set, get the pdata ramp_delay */ if (!di->regulator->constraints.ramp_delay) { int slew_idx = (pdata->slew_rate & 0x7) @@ -316,6 +380,8 @@ static int fan53555_regulator_probe(struct i2c_client *client, di->regulator->constraints.ramp_delay = slew_rates[slew_idx]; } + + di->vendor = id->driver_data; } di->regmap = devm_regmap_init_i2c(client, &fan53555_regmap_config); @@ -363,7 +429,13 @@ static int fan53555_regulator_probe(struct i2c_client *client, } static const struct i2c_device_id fan53555_id[] = { - {"fan53555", -1}, + { + .name = "fan53555", + .driver_data = FAN53555_VENDOR_FAIRCHILD + }, { + .name = "syr82x", + .driver_data = FAN53555_VENDOR_SILERGY + }, { }, }; From 6f34163c5474326dd70239045f1957fe369460dd Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Heiko=20St=C3=BCbner?= Date: Wed, 17 Sep 2014 13:21:48 +0200 Subject: [PATCH 61/71] regulator: fan53555: fix wrong cast in probe The vendor-id gathered from the dt match-data was cast to int but assigned to an unsigned long, producing warnings on at least sparc, like drivers/regulator/fan53555.c: In function 'fan53555_regulator_probe': >> drivers/regulator/fan53555.c:373:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] di->vendor = (int) match->data; Fix this by using an appropriate cast. Reported-by: kbuild test robot Signed-off-by: Heiko Stuebner Signed-off-by: Mark Brown --- drivers/regulator/fan53555.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c index f2f5535099a0..6ca6e2651168 100644 --- a/drivers/regulator/fan53555.c +++ b/drivers/regulator/fan53555.c @@ -370,7 +370,7 @@ static int fan53555_regulator_probe(struct i2c_client *client, if (!match) return -ENODEV; - di->vendor = (int) match->data; + di->vendor = (unsigned long) match->data; } else { /* if no ramp constraint set, get the pdata ramp_delay */ if (!di->regulator->constraints.ramp_delay) { From fe230531b3f94f33e5a4c0b201b651188c6cc132 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 18 Sep 2014 21:48:48 +0800 Subject: [PATCH 62/71] regulator: fan53555: Fixup report wrong vendor message Signed-off-by: Axel Lin Reviewed-by: Heiko Stuebner Signed-off-by: Mark Brown --- drivers/regulator/fan53555.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c index 6ca6e2651168..0168106b2cf7 100644 --- a/drivers/regulator/fan53555.c +++ b/drivers/regulator/fan53555.c @@ -267,8 +267,7 @@ static int fan53555_device_setup(struct fan53555_device_info *di, ret = fan53555_voltages_setup_silergy(di); break; default: - dev_err(di->dev, - "vendor %d not supported!\n", di->chip_id); + dev_err(di->dev, "vendor %d not supported!\n", di->vendor); return -EINVAL; } From e13426bf249b4928ad914c9ddf7f8b7e5a93e1c6 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 18 Sep 2014 21:49:38 +0800 Subject: [PATCH 63/71] regulator: fan53555: Fix null pointer dereference Set di->regulator before dereference it. Signed-off-by: Axel Lin Reviewed-by: Heiko Stuebner Signed-off-by: Mark Brown --- drivers/regulator/fan53555.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c index 0168106b2cf7..f8e4257aef92 100644 --- a/drivers/regulator/fan53555.c +++ b/drivers/regulator/fan53555.c @@ -361,6 +361,7 @@ static int fan53555_regulator_probe(struct i2c_client *client, if (!di) return -ENOMEM; + di->regulator = pdata->regulator; if (client->dev.of_node) { const struct of_device_id *match; @@ -389,7 +390,6 @@ static int fan53555_regulator_probe(struct i2c_client *client, return PTR_ERR(di->regmap); } di->dev = &client->dev; - di->regulator = pdata->regulator; i2c_set_clientdata(client, di); /* Get chip ID */ ret = regmap_read(di->regmap, FAN53555_ID1, &val); From 0d90ecf31e11f8204649943ed3478d7a015c2cb9 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Sat, 20 Sep 2014 22:06:34 +0200 Subject: [PATCH 64/71] regulator: axp20x: Use parent device as regulator configuration device The current device used for the regulator configuration is the child device created by the MFD driver. This means that it doesn't have any of_node pointing to it, and whenever we register the regulators, it will not look into the regulator supply in the DT, hence requiring to provide regulator aliases in the MFD driver. We can easily fix that by using the parent device in our configuration, which has a DT node associated to it, and will allow a DT lookup. Eventually, we will be able to remove the aliases in the MFD driver. Signed-off-by: Maxime Ripard Signed-off-by: Mark Brown --- drivers/regulator/axp20x-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c index 004aadb7bcc1..2e1010a34ddc 100644 --- a/drivers/regulator/axp20x-regulator.c +++ b/drivers/regulator/axp20x-regulator.c @@ -245,7 +245,7 @@ static int axp20x_regulator_probe(struct platform_device *pdev) for (i = 0; i < AXP20X_REG_ID_MAX; i++) { init_data = axp20x_matches[i].init_data; - config.dev = &pdev->dev; + config.dev = pdev->dev.parent; config.init_data = init_data; config.regmap = axp20x->regmap; config.of_node = axp20x_matches[i].of_node; From 2720386ec5d4df8fd31ff7845b6e8557dcde3a26 Mon Sep 17 00:00:00 2001 From: Bjorn Andersson Date: Mon, 22 Sep 2014 16:25:29 -0700 Subject: [PATCH 65/71] regulator: qcom-rpm: Regulator driver for the Qualcomm RPM Driver for regulators exposed by the Resource Power Manager (RPM) found in Qualcomm 8660, 8960 and 8064 based devices. Signed-off-by: Bjorn Andersson Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 12 + drivers/regulator/Makefile | 1 + drivers/regulator/qcom_rpm-regulator.c | 798 +++++++++++++++++++++++++ 3 files changed, 811 insertions(+) create mode 100644 drivers/regulator/qcom_rpm-regulator.c diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 2dc8289e5dba..0e59754d8df2 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -449,6 +449,18 @@ config REGULATOR_PFUZE100 Say y here to support the regulators found on the Freescale PFUZE100/PFUZE200 PMIC. +config REGULATOR_QCOM_RPM + tristate "Qualcomm RPM regulator driver" + depends on MFD_QCOM_RPM + help + If you say yes to this option, support will be included for the + regulators exposed by the Resource Power Manager found in Qualcomm + 8660, 8960 and 8064 based devices. + + Say M here if you want to include support for the regulators on the + Qualcomm RPM as a module. The module will be named + "qcom_rpm-regulator". + config REGULATOR_RC5T583 tristate "RICOH RC5T583 Power regulators" depends on MFD_RC5T583 diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index aa4a6aa7b558..9c50dc61d927 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -55,6 +55,7 @@ obj-$(CONFIG_REGULATOR_MAX77693) += max77693.o obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o +obj-$(CONFIG_REGULATOR_QCOM_RPM) += qcom_rpm-regulator.o obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o obj-$(CONFIG_REGULATOR_PFUZE100) += pfuze100-regulator.o obj-$(CONFIG_REGULATOR_TPS51632) += tps51632-regulator.o diff --git a/drivers/regulator/qcom_rpm-regulator.c b/drivers/regulator/qcom_rpm-regulator.c new file mode 100644 index 000000000000..8f283098788a --- /dev/null +++ b/drivers/regulator/qcom_rpm-regulator.c @@ -0,0 +1,798 @@ +/* + * Copyright (c) 2014, Sony Mobile Communications AB. + * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#define MAX_REQUEST_LEN 2 + +struct request_member { + int word; + unsigned int mask; + int shift; +}; + +struct rpm_reg_parts { + struct request_member mV; /* used if voltage is in mV */ + struct request_member uV; /* used if voltage is in uV */ + struct request_member ip; /* peak current in mA */ + struct request_member pd; /* pull down enable */ + struct request_member ia; /* average current in mA */ + struct request_member fm; /* force mode */ + struct request_member pm; /* power mode */ + struct request_member pc; /* pin control */ + struct request_member pf; /* pin function */ + struct request_member enable_state; /* NCP and switch */ + struct request_member comp_mode; /* NCP */ + struct request_member freq; /* frequency: NCP and SMPS */ + struct request_member freq_clk_src; /* clock source: SMPS */ + struct request_member hpm; /* switch: control OCP and SS */ + int request_len; +}; + +#define FORCE_MODE_IS_2_BITS(reg) \ + ((vreg->parts->fm.mask >> vreg->parts->fm.shift) == 3) + +struct qcom_rpm_reg { + struct qcom_rpm *rpm; + + struct mutex lock; + struct device *dev; + struct regulator_desc desc; + const struct rpm_reg_parts *parts; + + int resource; + u32 val[MAX_REQUEST_LEN]; + + int uV; + int is_enabled; + + bool supports_force_mode_auto; + bool supports_force_mode_bypass; +}; + +static const struct rpm_reg_parts rpm8660_ldo_parts = { + .request_len = 2, + .mV = { 0, 0x00000FFF, 0 }, + .ip = { 0, 0x00FFF000, 12 }, + .fm = { 0, 0x03000000, 24 }, + .pc = { 0, 0x3C000000, 26 }, + .pf = { 0, 0xC0000000, 30 }, + .pd = { 1, 0x00000001, 0 }, + .ia = { 1, 0x00001FFE, 1 }, +}; + +static const struct rpm_reg_parts rpm8660_smps_parts = { + .request_len = 2, + .mV = { 0, 0x00000FFF, 0 }, + .ip = { 0, 0x00FFF000, 12 }, + .fm = { 0, 0x03000000, 24 }, + .pc = { 0, 0x3C000000, 26 }, + .pf = { 0, 0xC0000000, 30 }, + .pd = { 1, 0x00000001, 0 }, + .ia = { 1, 0x00001FFE, 1 }, + .freq = { 1, 0x001FE000, 13 }, + .freq_clk_src = { 1, 0x00600000, 21 }, +}; + +static const struct rpm_reg_parts rpm8660_switch_parts = { + .request_len = 1, + .enable_state = { 0, 0x00000001, 0 }, + .pd = { 0, 0x00000002, 1 }, + .pc = { 0, 0x0000003C, 2 }, + .pf = { 0, 0x000000C0, 6 }, + .hpm = { 0, 0x00000300, 8 }, +}; + +static const struct rpm_reg_parts rpm8660_ncp_parts = { + .request_len = 1, + .mV = { 0, 0x00000FFF, 0 }, + .enable_state = { 0, 0x00001000, 12 }, + .comp_mode = { 0, 0x00002000, 13 }, + .freq = { 0, 0x003FC000, 14 }, +}; + +static const struct rpm_reg_parts rpm8960_ldo_parts = { + .request_len = 2, + .uV = { 0, 0x007FFFFF, 0 }, + .pd = { 0, 0x00800000, 23 }, + .pc = { 0, 0x0F000000, 24 }, + .pf = { 0, 0xF0000000, 28 }, + .ip = { 1, 0x000003FF, 0 }, + .ia = { 1, 0x000FFC00, 10 }, + .fm = { 1, 0x00700000, 20 }, +}; + +static const struct rpm_reg_parts rpm8960_smps_parts = { + .request_len = 2, + .uV = { 0, 0x007FFFFF, 0 }, + .pd = { 0, 0x00800000, 23 }, + .pc = { 0, 0x0F000000, 24 }, + .pf = { 0, 0xF0000000, 28 }, + .ip = { 1, 0x000003FF, 0 }, + .ia = { 1, 0x000FFC00, 10 }, + .fm = { 1, 0x00700000, 20 }, + .pm = { 1, 0x00800000, 23 }, + .freq = { 1, 0x1F000000, 24 }, + .freq_clk_src = { 1, 0x60000000, 29 }, +}; + +static const struct rpm_reg_parts rpm8960_switch_parts = { + .request_len = 1, + .enable_state = { 0, 0x00000001, 0 }, + .pd = { 0, 0x00000002, 1 }, + .pc = { 0, 0x0000003C, 2 }, + .pf = { 0, 0x000003C0, 6 }, + .hpm = { 0, 0x00000C00, 10 }, +}; + +static const struct rpm_reg_parts rpm8960_ncp_parts = { + .request_len = 1, + .uV = { 0, 0x007FFFFF, 0 }, + .enable_state = { 0, 0x00800000, 23 }, + .comp_mode = { 0, 0x01000000, 24 }, + .freq = { 0, 0x3E000000, 25 }, +}; + +/* + * Physically available PMIC regulator voltage ranges + */ +static const struct regulator_linear_range pldo_ranges[] = { + REGULATOR_LINEAR_RANGE( 750000, 0, 59, 12500), + REGULATOR_LINEAR_RANGE(1500000, 60, 123, 25000), + REGULATOR_LINEAR_RANGE(3100000, 124, 160, 50000), +}; + +static const struct regulator_linear_range nldo_ranges[] = { + REGULATOR_LINEAR_RANGE( 750000, 0, 63, 12500), +}; + +static const struct regulator_linear_range nldo1200_ranges[] = { + REGULATOR_LINEAR_RANGE( 375000, 0, 59, 6250), + REGULATOR_LINEAR_RANGE( 750000, 60, 123, 12500), +}; + +static const struct regulator_linear_range smps_ranges[] = { + REGULATOR_LINEAR_RANGE( 375000, 0, 29, 12500), + REGULATOR_LINEAR_RANGE( 750000, 30, 89, 12500), + REGULATOR_LINEAR_RANGE(1500000, 90, 153, 25000), +}; + +static const struct regulator_linear_range ftsmps_ranges[] = { + REGULATOR_LINEAR_RANGE( 350000, 0, 6, 50000), + REGULATOR_LINEAR_RANGE( 700000, 7, 63, 12500), + REGULATOR_LINEAR_RANGE(1500000, 64, 100, 50000), +}; + +static const struct regulator_linear_range ncp_ranges[] = { + REGULATOR_LINEAR_RANGE(1500000, 0, 31, 50000), +}; + +static int rpm_reg_write(struct qcom_rpm_reg *vreg, + const struct request_member *req, + const int value) +{ + if (WARN_ON((value << req->shift) & ~req->mask)) + return -EINVAL; + + vreg->val[req->word] &= ~req->mask; + vreg->val[req->word] |= value << req->shift; + + return qcom_rpm_write(vreg->rpm, + vreg->resource, + vreg->val, + vreg->parts->request_len); +} + +static int rpm_reg_set_mV_sel(struct regulator_dev *rdev, + unsigned selector) +{ + struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); + const struct rpm_reg_parts *parts = vreg->parts; + const struct request_member *req = &parts->mV; + int ret = 0; + int uV; + + if (req->mask == 0) + return -EINVAL; + + uV = regulator_list_voltage_linear_range(rdev, selector); + if (uV < 0) + return uV; + + mutex_lock(&vreg->lock); + vreg->uV = uV; + if (vreg->is_enabled) + ret = rpm_reg_write(vreg, req, vreg->uV / 1000); + mutex_unlock(&vreg->lock); + + return ret; +} + +static int rpm_reg_set_uV_sel(struct regulator_dev *rdev, + unsigned selector) +{ + struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); + const struct rpm_reg_parts *parts = vreg->parts; + const struct request_member *req = &parts->uV; + int ret = 0; + int uV; + + if (req->mask == 0) + return -EINVAL; + + uV = regulator_list_voltage_linear_range(rdev, selector); + if (uV < 0) + return uV; + + mutex_lock(&vreg->lock); + vreg->uV = uV; + if (vreg->is_enabled) + ret = rpm_reg_write(vreg, req, vreg->uV); + mutex_unlock(&vreg->lock); + + return ret; +} + +static int rpm_reg_get_voltage(struct regulator_dev *rdev) +{ + struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); + + return vreg->uV; +} + +static int rpm_reg_mV_enable(struct regulator_dev *rdev) +{ + struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); + const struct rpm_reg_parts *parts = vreg->parts; + const struct request_member *req = &parts->mV; + int ret; + + if (req->mask == 0) + return -EINVAL; + + mutex_lock(&vreg->lock); + ret = rpm_reg_write(vreg, req, vreg->uV / 1000); + if (!ret) + vreg->is_enabled = 1; + mutex_unlock(&vreg->lock); + + return ret; +} + +static int rpm_reg_uV_enable(struct regulator_dev *rdev) +{ + struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); + const struct rpm_reg_parts *parts = vreg->parts; + const struct request_member *req = &parts->uV; + int ret; + + if (req->mask == 0) + return -EINVAL; + + mutex_lock(&vreg->lock); + ret = rpm_reg_write(vreg, req, vreg->uV); + if (!ret) + vreg->is_enabled = 1; + mutex_unlock(&vreg->lock); + + return ret; +} + +static int rpm_reg_switch_enable(struct regulator_dev *rdev) +{ + struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); + const struct rpm_reg_parts *parts = vreg->parts; + const struct request_member *req = &parts->enable_state; + int ret; + + if (req->mask == 0) + return -EINVAL; + + mutex_lock(&vreg->lock); + ret = rpm_reg_write(vreg, req, 1); + if (!ret) + vreg->is_enabled = 1; + mutex_unlock(&vreg->lock); + + return ret; +} + +static int rpm_reg_mV_disable(struct regulator_dev *rdev) +{ + struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); + const struct rpm_reg_parts *parts = vreg->parts; + const struct request_member *req = &parts->mV; + int ret; + + if (req->mask == 0) + return -EINVAL; + + mutex_lock(&vreg->lock); + ret = rpm_reg_write(vreg, req, 0); + if (!ret) + vreg->is_enabled = 0; + mutex_unlock(&vreg->lock); + + return ret; +} + +static int rpm_reg_uV_disable(struct regulator_dev *rdev) +{ + struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); + const struct rpm_reg_parts *parts = vreg->parts; + const struct request_member *req = &parts->uV; + int ret; + + if (req->mask == 0) + return -EINVAL; + + mutex_lock(&vreg->lock); + ret = rpm_reg_write(vreg, req, 0); + if (!ret) + vreg->is_enabled = 0; + mutex_unlock(&vreg->lock); + + return ret; +} + +static int rpm_reg_switch_disable(struct regulator_dev *rdev) +{ + struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); + const struct rpm_reg_parts *parts = vreg->parts; + const struct request_member *req = &parts->enable_state; + int ret; + + if (req->mask == 0) + return -EINVAL; + + mutex_lock(&vreg->lock); + ret = rpm_reg_write(vreg, req, 0); + if (!ret) + vreg->is_enabled = 0; + mutex_unlock(&vreg->lock); + + return ret; +} + +static int rpm_reg_is_enabled(struct regulator_dev *rdev) +{ + struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); + + return vreg->is_enabled; +} + +static struct regulator_ops uV_ops = { + .list_voltage = regulator_list_voltage_linear_range, + + .set_voltage_sel = rpm_reg_set_uV_sel, + .get_voltage = rpm_reg_get_voltage, + + .enable = rpm_reg_uV_enable, + .disable = rpm_reg_uV_disable, + .is_enabled = rpm_reg_is_enabled, +}; + +static struct regulator_ops mV_ops = { + .list_voltage = regulator_list_voltage_linear_range, + + .set_voltage_sel = rpm_reg_set_mV_sel, + .get_voltage = rpm_reg_get_voltage, + + .enable = rpm_reg_mV_enable, + .disable = rpm_reg_mV_disable, + .is_enabled = rpm_reg_is_enabled, +}; + +static struct regulator_ops switch_ops = { + .enable = rpm_reg_switch_enable, + .disable = rpm_reg_switch_disable, + .is_enabled = rpm_reg_is_enabled, +}; + +/* + * PM8058 regulators + */ +static const struct qcom_rpm_reg pm8058_pldo = { + .desc.linear_ranges = pldo_ranges, + .desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges), + .desc.n_voltages = 161, + .desc.ops = &mV_ops, + .parts = &rpm8660_ldo_parts, + .supports_force_mode_auto = false, + .supports_force_mode_bypass = false, +}; + +static const struct qcom_rpm_reg pm8058_nldo = { + .desc.linear_ranges = nldo_ranges, + .desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges), + .desc.n_voltages = 64, + .desc.ops = &mV_ops, + .parts = &rpm8660_ldo_parts, + .supports_force_mode_auto = false, + .supports_force_mode_bypass = false, +}; + +static const struct qcom_rpm_reg pm8058_smps = { + .desc.linear_ranges = smps_ranges, + .desc.n_linear_ranges = ARRAY_SIZE(smps_ranges), + .desc.n_voltages = 154, + .desc.ops = &mV_ops, + .parts = &rpm8660_smps_parts, + .supports_force_mode_auto = false, + .supports_force_mode_bypass = false, +}; + +static const struct qcom_rpm_reg pm8058_ncp = { + .desc.linear_ranges = ncp_ranges, + .desc.n_linear_ranges = ARRAY_SIZE(ncp_ranges), + .desc.n_voltages = 32, + .desc.ops = &mV_ops, + .parts = &rpm8660_ncp_parts, +}; + +static const struct qcom_rpm_reg pm8058_switch = { + .desc.ops = &switch_ops, + .parts = &rpm8660_switch_parts, +}; + +/* + * PM8901 regulators + */ +static const struct qcom_rpm_reg pm8901_pldo = { + .desc.linear_ranges = pldo_ranges, + .desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges), + .desc.n_voltages = 161, + .desc.ops = &mV_ops, + .parts = &rpm8660_ldo_parts, + .supports_force_mode_auto = false, + .supports_force_mode_bypass = true, +}; + +static const struct qcom_rpm_reg pm8901_nldo = { + .desc.linear_ranges = nldo_ranges, + .desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges), + .desc.n_voltages = 64, + .desc.ops = &mV_ops, + .parts = &rpm8660_ldo_parts, + .supports_force_mode_auto = false, + .supports_force_mode_bypass = true, +}; + +static const struct qcom_rpm_reg pm8901_ftsmps = { + .desc.linear_ranges = ftsmps_ranges, + .desc.n_linear_ranges = ARRAY_SIZE(ftsmps_ranges), + .desc.n_voltages = 101, + .desc.ops = &mV_ops, + .parts = &rpm8660_smps_parts, + .supports_force_mode_auto = true, + .supports_force_mode_bypass = false, +}; + +static const struct qcom_rpm_reg pm8901_switch = { + .desc.ops = &switch_ops, + .parts = &rpm8660_switch_parts, +}; + +/* + * PM8921 regulators + */ +static const struct qcom_rpm_reg pm8921_pldo = { + .desc.linear_ranges = pldo_ranges, + .desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges), + .desc.n_voltages = 161, + .desc.ops = &uV_ops, + .parts = &rpm8960_ldo_parts, + .supports_force_mode_auto = false, + .supports_force_mode_bypass = true, +}; + +static const struct qcom_rpm_reg pm8921_nldo = { + .desc.linear_ranges = nldo_ranges, + .desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges), + .desc.n_voltages = 64, + .desc.ops = &uV_ops, + .parts = &rpm8960_ldo_parts, + .supports_force_mode_auto = false, + .supports_force_mode_bypass = true, +}; + +static const struct qcom_rpm_reg pm8921_nldo1200 = { + .desc.linear_ranges = nldo1200_ranges, + .desc.n_linear_ranges = ARRAY_SIZE(nldo1200_ranges), + .desc.n_voltages = 124, + .desc.ops = &uV_ops, + .parts = &rpm8960_ldo_parts, + .supports_force_mode_auto = false, + .supports_force_mode_bypass = true, +}; + +static const struct qcom_rpm_reg pm8921_smps = { + .desc.linear_ranges = smps_ranges, + .desc.n_linear_ranges = ARRAY_SIZE(smps_ranges), + .desc.n_voltages = 154, + .desc.ops = &uV_ops, + .parts = &rpm8960_smps_parts, + .supports_force_mode_auto = true, + .supports_force_mode_bypass = false, +}; + +static const struct qcom_rpm_reg pm8921_ftsmps = { + .desc.linear_ranges = ftsmps_ranges, + .desc.n_linear_ranges = ARRAY_SIZE(ftsmps_ranges), + .desc.n_voltages = 101, + .desc.ops = &uV_ops, + .parts = &rpm8960_smps_parts, + .supports_force_mode_auto = true, + .supports_force_mode_bypass = false, +}; + +static const struct qcom_rpm_reg pm8921_ncp = { + .desc.linear_ranges = ncp_ranges, + .desc.n_linear_ranges = ARRAY_SIZE(ncp_ranges), + .desc.n_voltages = 32, + .desc.ops = &uV_ops, + .parts = &rpm8960_ncp_parts, +}; + +static const struct qcom_rpm_reg pm8921_switch = { + .desc.ops = &switch_ops, + .parts = &rpm8960_switch_parts, +}; + +static const struct of_device_id rpm_of_match[] = { + { .compatible = "qcom,rpm-pm8058-pldo", .data = &pm8058_pldo }, + { .compatible = "qcom,rpm-pm8058-nldo", .data = &pm8058_nldo }, + { .compatible = "qcom,rpm-pm8058-smps", .data = &pm8058_smps }, + { .compatible = "qcom,rpm-pm8058-ncp", .data = &pm8058_ncp }, + { .compatible = "qcom,rpm-pm8058-switch", .data = &pm8058_switch }, + + { .compatible = "qcom,rpm-pm8901-pldo", .data = &pm8901_pldo }, + { .compatible = "qcom,rpm-pm8901-nldo", .data = &pm8901_nldo }, + { .compatible = "qcom,rpm-pm8901-ftsmps", .data = &pm8901_ftsmps }, + { .compatible = "qcom,rpm-pm8901-switch", .data = &pm8901_switch }, + + { .compatible = "qcom,rpm-pm8921-pldo", .data = &pm8921_pldo }, + { .compatible = "qcom,rpm-pm8921-nldo", .data = &pm8921_nldo }, + { .compatible = "qcom,rpm-pm8921-nldo1200", .data = &pm8921_nldo1200 }, + { .compatible = "qcom,rpm-pm8921-smps", .data = &pm8921_smps }, + { .compatible = "qcom,rpm-pm8921-ftsmps", .data = &pm8921_ftsmps }, + { .compatible = "qcom,rpm-pm8921-ncp", .data = &pm8921_ncp }, + { .compatible = "qcom,rpm-pm8921-switch", .data = &pm8921_switch }, + { } +}; +MODULE_DEVICE_TABLE(of, rpm_of_match); + +static int rpm_reg_set(struct qcom_rpm_reg *vreg, + const struct request_member *req, + const int value) +{ + if (req->mask == 0 || (value << req->shift) & ~req->mask) + return -EINVAL; + + vreg->val[req->word] &= ~req->mask; + vreg->val[req->word] |= value << req->shift; + + return 0; +} + +static int rpm_reg_of_parse_freq(struct device *dev, struct qcom_rpm_reg *vreg) +{ + static const int freq_table[] = { + 19200000, 9600000, 6400000, 4800000, 3840000, 3200000, 2740000, + 2400000, 2130000, 1920000, 1750000, 1600000, 1480000, 1370000, + 1280000, 1200000, + + }; + const char *key; + u32 freq; + int ret; + int i; + + key = "qcom,switch-mode-frequency"; + ret = of_property_read_u32(dev->of_node, key, &freq); + if (ret) { + dev_err(dev, "regulator requires %s property\n", key); + return -EINVAL; + } + + for (i = 0; i < ARRAY_SIZE(freq_table); i++) { + if (freq == freq_table[i]) { + rpm_reg_set(vreg, &vreg->parts->freq, i + 1); + return 0; + } + } + + dev_err(dev, "invalid frequency %d\n", freq); + return -EINVAL; +} + +static int rpm_reg_probe(struct platform_device *pdev) +{ + struct regulator_init_data *initdata; + const struct qcom_rpm_reg *template; + const struct of_device_id *match; + struct regulator_config config = { 0 }; + struct regulator_dev *rdev; + struct qcom_rpm_reg *vreg; + const char *key; + u32 force_mode; + bool pwm; + u32 val; + int ret; + + match = of_match_device(rpm_of_match, &pdev->dev); + template = match->data; + + initdata = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node); + if (!initdata) + return -EINVAL; + + vreg = devm_kmalloc(&pdev->dev, sizeof(*vreg), GFP_KERNEL); + if (!vreg) { + dev_err(&pdev->dev, "failed to allocate vreg\n"); + return -ENOMEM; + } + memcpy(vreg, template, sizeof(*vreg)); + mutex_init(&vreg->lock); + vreg->dev = &pdev->dev; + vreg->desc.id = -1; + vreg->desc.owner = THIS_MODULE; + vreg->desc.type = REGULATOR_VOLTAGE; + vreg->desc.name = pdev->dev.of_node->name; + + vreg->rpm = dev_get_drvdata(pdev->dev.parent); + if (!vreg->rpm) { + dev_err(&pdev->dev, "unable to retrieve handle to rpm\n"); + return -ENODEV; + } + + key = "reg"; + ret = of_property_read_u32(pdev->dev.of_node, key, &val); + if (ret) { + dev_err(&pdev->dev, "failed to read %s\n", key); + return ret; + } + vreg->resource = val; + + if ((vreg->parts->uV.mask || vreg->parts->mV.mask) && + (!initdata->constraints.min_uV || !initdata->constraints.max_uV)) { + dev_err(&pdev->dev, "no voltage specified for regulator\n"); + return -EINVAL; + } + + key = "bias-pull-down"; + if (of_property_read_bool(pdev->dev.of_node, key)) { + ret = rpm_reg_set(vreg, &vreg->parts->pd, 1); + if (ret) { + dev_err(&pdev->dev, "%s is invalid", key); + return ret; + } + } + + if (vreg->parts->freq.mask) { + ret = rpm_reg_of_parse_freq(&pdev->dev, vreg); + if (ret < 0) + return ret; + } + + if (vreg->parts->pm.mask) { + key = "qcom,power-mode-hysteretic"; + pwm = !of_property_read_bool(pdev->dev.of_node, key); + + ret = rpm_reg_set(vreg, &vreg->parts->pm, pwm); + if (ret) { + dev_err(&pdev->dev, "failed to set power mode\n"); + return ret; + } + } + + if (vreg->parts->fm.mask) { + force_mode = -1; + + key = "qcom,force-mode"; + ret = of_property_read_u32(pdev->dev.of_node, key, &val); + if (ret == -EINVAL) { + val = QCOM_RPM_FORCE_MODE_NONE; + } else if (ret < 0) { + dev_err(&pdev->dev, "failed to read %s\n", key); + return ret; + } + + /* + * If force-mode is encoded as 2 bits then the + * possible register values are: + * NONE, LPM, HPM + * otherwise: + * NONE, LPM, AUTO, HPM, BYPASS + */ + switch (val) { + case QCOM_RPM_FORCE_MODE_NONE: + force_mode = 0; + break; + case QCOM_RPM_FORCE_MODE_LPM: + force_mode = 1; + break; + case QCOM_RPM_FORCE_MODE_HPM: + if (FORCE_MODE_IS_2_BITS(vreg)) + force_mode = 2; + else + force_mode = 3; + break; + case QCOM_RPM_FORCE_MODE_AUTO: + if (vreg->supports_force_mode_auto) + force_mode = 2; + break; + case QCOM_RPM_FORCE_MODE_BYPASS: + if (vreg->supports_force_mode_bypass) + force_mode = 4; + break; + } + + if (force_mode < 0) { + dev_err(&pdev->dev, "invalid force mode\n"); + return -EINVAL; + } + + ret = rpm_reg_set(vreg, &vreg->parts->fm, force_mode); + if (ret) { + dev_err(&pdev->dev, "failed to set force mode\n"); + return ret; + } + } + + config.dev = &pdev->dev; + config.init_data = initdata; + config.driver_data = vreg; + config.of_node = pdev->dev.of_node; + rdev = devm_regulator_register(&pdev->dev, &vreg->desc, &config); + if (IS_ERR(rdev)) { + dev_err(&pdev->dev, "can't register regulator\n"); + return PTR_ERR(rdev); + } + + return 0; +} + +static struct platform_driver rpm_reg_driver = { + .probe = rpm_reg_probe, + .driver = { + .name = "qcom_rpm_reg", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(rpm_of_match), + }, +}; + +static int __init rpm_reg_init(void) +{ + return platform_driver_register(&rpm_reg_driver); +} +subsys_initcall(rpm_reg_init); + +static void __exit rpm_reg_exit(void) +{ + platform_driver_unregister(&rpm_reg_driver); +} +module_exit(rpm_reg_exit) + +MODULE_DESCRIPTION("Qualcomm RPM regulator driver"); +MODULE_LICENSE("GPL v2"); From c5bb725ac2d1a13e9e766bf9a16bac986ade17cd Mon Sep 17 00:00:00 2001 From: Steffen Trumtrar Date: Thu, 25 Sep 2014 16:39:11 +0200 Subject: [PATCH 66/71] regulator: ltc3589: fix broken voltage transitions VCCR is used as a trigger to start voltage transitions, so we need to mark it volatile in order to make sure it gets written to hardware every time we set a new voltage. Fixes regulator voltage being stuck at the first voltage set after driver load. [lst: reworded commit message] Signed-off-by: Steffen Trumtrar Signed-off-by: Lucas Stach Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- drivers/regulator/ltc3589.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/regulator/ltc3589.c b/drivers/regulator/ltc3589.c index c756955bfcc5..0ce8e4e0fa73 100644 --- a/drivers/regulator/ltc3589.c +++ b/drivers/regulator/ltc3589.c @@ -372,6 +372,7 @@ static bool ltc3589_volatile_reg(struct device *dev, unsigned int reg) switch (reg) { case LTC3589_IRQSTAT: case LTC3589_PGSTAT: + case LTC3589_VCCR: return true; } return false; From aad615c632681168e48b3cafd79e43f55f7be1cf Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 24 Sep 2014 17:45:25 +0800 Subject: [PATCH 67/71] regulator: qcom_rpm: Don't explicitly initialise the first field of config Doing so generates a warning as the first field is a pointer but we use 0 to initialize it. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/qcom_rpm-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/qcom_rpm-regulator.c b/drivers/regulator/qcom_rpm-regulator.c index 8f283098788a..8d5969a8e874 100644 --- a/drivers/regulator/qcom_rpm-regulator.c +++ b/drivers/regulator/qcom_rpm-regulator.c @@ -631,7 +631,7 @@ static int rpm_reg_probe(struct platform_device *pdev) struct regulator_init_data *initdata; const struct qcom_rpm_reg *template; const struct of_device_id *match; - struct regulator_config config = { 0 }; + struct regulator_config config = { }; struct regulator_dev *rdev; struct qcom_rpm_reg *vreg; const char *key; From 6a642509801116037720892efe72f0e84f02f317 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 25 Sep 2014 10:17:29 +0800 Subject: [PATCH 68/71] regulator: qcom_rpm: Fix FORCE_MODE_IS_2_BITS macro Current code does not take the macro parameter, fix it. This is not a problem at this moment because the only user actually passes vreg to FORCE_MODE_IS_2_BITS(). Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/qcom_rpm-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/qcom_rpm-regulator.c b/drivers/regulator/qcom_rpm-regulator.c index 8d5969a8e874..b55cd5b50ebe 100644 --- a/drivers/regulator/qcom_rpm-regulator.c +++ b/drivers/regulator/qcom_rpm-regulator.c @@ -50,7 +50,7 @@ struct rpm_reg_parts { }; #define FORCE_MODE_IS_2_BITS(reg) \ - ((vreg->parts->fm.mask >> vreg->parts->fm.shift) == 3) + (((reg)->parts->fm.mask >> (reg)->parts->fm.shift) == 3) struct qcom_rpm_reg { struct qcom_rpm *rpm; From aa66cc6630a4088e84b64992aa5f137711ae45fa Mon Sep 17 00:00:00 2001 From: Chris Zhong Date: Sun, 28 Sep 2014 10:28:53 +0800 Subject: [PATCH 69/71] regulator: pwm-regulator: get voltage and duty table from dts rename st-pwm to pwm-regulator. And support getting voltage & duty table from device tree, other platforms can also use this driver without any modify. Signed-off-by: Chris Zhong Reviewed-by: Doug Anderson Tested-by: Doug Anderson Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 13 +- drivers/regulator/Makefile | 2 +- drivers/regulator/pwm-regulator.c | 197 ++++++++++++++++++++++++++++++ drivers/regulator/st-pwm.c | 190 ---------------------------- 4 files changed, 205 insertions(+), 197 deletions(-) create mode 100644 drivers/regulator/pwm-regulator.c delete mode 100644 drivers/regulator/st-pwm.c diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 2dc8289e5dba..b0ff94a6e45d 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -449,6 +449,13 @@ config REGULATOR_PFUZE100 Say y here to support the regulators found on the Freescale PFUZE100/PFUZE200 PMIC. +config REGULATOR_PWM + tristate "PWM voltage regulator" + depends on PWM + help + This driver supports PWM controlled voltage regulators. PWM + duty cycle can increase or decrease the voltage. + config REGULATOR_RC5T583 tristate "RICOH RC5T583 Power regulators" depends on MFD_RC5T583 @@ -483,12 +490,6 @@ config REGULATOR_S5M8767 via I2C bus. S5M8767A have 9 Bucks and 28 LDOs output and supports DVS mode with 8bits of output voltage control. -config REGULATOR_ST_PWM - tristate "STMicroelectronics PWM voltage regulator" - depends on ARCH_STI - help - This driver supports ST's PWM controlled voltage regulators. - config REGULATOR_TI_ABB tristate "TI Adaptive Body Bias on-chip LDO" depends on ARCH_OMAP diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index aa4a6aa7b558..516c36b67c59 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -57,6 +57,7 @@ obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o obj-$(CONFIG_REGULATOR_PFUZE100) += pfuze100-regulator.o +obj-$(CONFIG_REGULATOR_PWM) += pwm-regulator.o obj-$(CONFIG_REGULATOR_TPS51632) += tps51632-regulator.o obj-$(CONFIG_REGULATOR_PBIAS) += pbias-regulator.o obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o @@ -65,7 +66,6 @@ obj-$(CONFIG_REGULATOR_RC5T583) += rc5t583-regulator.o obj-$(CONFIG_REGULATOR_S2MPA01) += s2mpa01.o obj-$(CONFIG_REGULATOR_S2MPS11) += s2mps11.o obj-$(CONFIG_REGULATOR_S5M8767) += s5m8767.o -obj-$(CONFIG_REGULATOR_ST_PWM) += st-pwm.o obj-$(CONFIG_REGULATOR_STW481X_VMMC) += stw481x-vmmc.o obj-$(CONFIG_REGULATOR_TI_ABB) += ti-abb-regulator.o obj-$(CONFIG_REGULATOR_TPS6105X) += tps6105x-regulator.o diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c new file mode 100644 index 000000000000..d3f55eaea058 --- /dev/null +++ b/drivers/regulator/pwm-regulator.c @@ -0,0 +1,197 @@ +/* + * Regulator driver for PWM Regulators + * + * Copyright (C) 2014 - STMicroelectronics Inc. + * + * Author: Lee Jones + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct pwm_regulator_data { + struct regulator_desc desc; + struct pwm_voltages *duty_cycle_table; + struct pwm_device *pwm; + bool enabled; + int state; +}; + +struct pwm_voltages { + unsigned int uV; + unsigned int dutycycle; +}; + +static int pwm_regulator_get_voltage_sel(struct regulator_dev *dev) +{ + struct pwm_regulator_data *drvdata = rdev_get_drvdata(dev); + + return drvdata->state; +} + +static int pwm_regulator_set_voltage_sel(struct regulator_dev *dev, + unsigned selector) +{ + struct pwm_regulator_data *drvdata = rdev_get_drvdata(dev); + unsigned int pwm_reg_period; + int dutycycle; + int ret; + + pwm_reg_period = pwm_get_period(drvdata->pwm); + + dutycycle = (pwm_reg_period * + drvdata->duty_cycle_table[selector].dutycycle) / 100; + + ret = pwm_config(drvdata->pwm, dutycycle, pwm_reg_period); + if (ret) { + dev_err(&dev->dev, "Failed to configure PWM\n"); + return ret; + } + + drvdata->state = selector; + + if (!drvdata->enabled) { + ret = pwm_enable(drvdata->pwm); + if (ret) { + dev_err(&dev->dev, "Failed to enable PWM\n"); + return ret; + } + drvdata->enabled = true; + } + + return 0; +} + +static int pwm_regulator_list_voltage(struct regulator_dev *dev, + unsigned selector) +{ + struct pwm_regulator_data *drvdata = rdev_get_drvdata(dev); + + if (selector >= drvdata->desc.n_voltages) + return -EINVAL; + + return drvdata->duty_cycle_table[selector].uV; +} + +static struct regulator_ops pwm_regulator_voltage_ops = { + .set_voltage_sel = pwm_regulator_set_voltage_sel, + .get_voltage_sel = pwm_regulator_get_voltage_sel, + .list_voltage = pwm_regulator_list_voltage, + .map_voltage = regulator_map_voltage_iterate, +}; + +static const struct regulator_desc pwm_regulator_desc = { + .name = "pwm-regulator", + .ops = &pwm_regulator_voltage_ops, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .supply_name = "pwm", +}; + +static int pwm_regulator_probe(struct platform_device *pdev) +{ + struct pwm_regulator_data *drvdata; + struct property *prop; + struct regulator_dev *regulator; + struct regulator_config config = { }; + struct device_node *np = pdev->dev.of_node; + int length, ret; + + if (!np) { + dev_err(&pdev->dev, "Device Tree node missing\n"); + return -EINVAL; + } + + drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL); + if (!drvdata) + return -ENOMEM; + + memcpy(&drvdata->desc, &pwm_regulator_desc, sizeof(pwm_regulator_desc)); + + /* determine the number of voltage-table */ + prop = of_find_property(np, "voltage-table", &length); + if (!prop) { + dev_err(&pdev->dev, "No voltage-table\n"); + return -EINVAL; + } + + if ((length < sizeof(*drvdata->duty_cycle_table)) || + (length % sizeof(*drvdata->duty_cycle_table))) { + dev_err(&pdev->dev, "voltage-table length(%d) is invalid\n", + length); + return -EINVAL; + } + + drvdata->desc.n_voltages = length / sizeof(*drvdata->duty_cycle_table); + + drvdata->duty_cycle_table = devm_kzalloc(&pdev->dev, + length, GFP_KERNEL); + if (!drvdata->duty_cycle_table) + return -ENOMEM; + + /* read voltage table from DT property */ + ret = of_property_read_u32_array(np, "voltage-table", + (u32 *)drvdata->duty_cycle_table, + length / sizeof(u32)); + if (ret < 0) { + dev_err(&pdev->dev, "read voltage-table failed\n"); + return ret; + } + + config.init_data = of_get_regulator_init_data(&pdev->dev, np); + if (!config.init_data) + return -ENOMEM; + + config.of_node = np; + config.dev = &pdev->dev; + config.driver_data = drvdata; + + drvdata->pwm = devm_pwm_get(&pdev->dev, NULL); + if (IS_ERR(drvdata->pwm)) { + dev_err(&pdev->dev, "Failed to get PWM\n"); + return PTR_ERR(drvdata->pwm); + } + + regulator = devm_regulator_register(&pdev->dev, + &drvdata->desc, &config); + if (IS_ERR(regulator)) { + dev_err(&pdev->dev, "Failed to register regulator %s\n", + drvdata->desc.name); + return PTR_ERR(regulator); + } + + return 0; +} + +static const struct of_device_id pwm_of_match[] = { + { .compatible = "pwm-regulator" }, + { }, +}; +MODULE_DEVICE_TABLE(of, pwm_of_match); + +static struct platform_driver pwm_regulator_driver = { + .driver = { + .name = "pwm-regulator", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(pwm_of_match), + }, + .probe = pwm_regulator_probe, +}; + +module_platform_driver(pwm_regulator_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Lee Jones "); +MODULE_DESCRIPTION("PWM Regulator Driver"); +MODULE_ALIAS("platform:pwm-regulator"); diff --git a/drivers/regulator/st-pwm.c b/drivers/regulator/st-pwm.c deleted file mode 100644 index 5ea78df449f8..000000000000 --- a/drivers/regulator/st-pwm.c +++ /dev/null @@ -1,190 +0,0 @@ -/* - * Regulator driver for ST's PWM Regulators - * - * Copyright (C) 2014 - STMicroelectronics Inc. - * - * Author: Lee Jones - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define ST_PWM_REG_PERIOD 8448 - -struct st_pwm_regulator_pdata { - const struct regulator_desc *desc; - struct st_pwm_voltages *duty_cycle_table; -}; - -struct st_pwm_regulator_data { - const struct st_pwm_regulator_pdata *pdata; - struct pwm_device *pwm; - bool enabled; - int state; -}; - -struct st_pwm_voltages { - unsigned int uV; - unsigned int dutycycle; -}; - -static int st_pwm_regulator_get_voltage_sel(struct regulator_dev *dev) -{ - struct st_pwm_regulator_data *drvdata = rdev_get_drvdata(dev); - - return drvdata->state; -} - -static int st_pwm_regulator_set_voltage_sel(struct regulator_dev *dev, - unsigned selector) -{ - struct st_pwm_regulator_data *drvdata = rdev_get_drvdata(dev); - int dutycycle; - int ret; - - dutycycle = (ST_PWM_REG_PERIOD / 100) * - drvdata->pdata->duty_cycle_table[selector].dutycycle; - - ret = pwm_config(drvdata->pwm, dutycycle, ST_PWM_REG_PERIOD); - if (ret) { - dev_err(&dev->dev, "Failed to configure PWM\n"); - return ret; - } - - drvdata->state = selector; - - if (!drvdata->enabled) { - ret = pwm_enable(drvdata->pwm); - if (ret) { - dev_err(&dev->dev, "Failed to enable PWM\n"); - return ret; - } - drvdata->enabled = true; - } - - return 0; -} - -static int st_pwm_regulator_list_voltage(struct regulator_dev *dev, - unsigned selector) -{ - struct st_pwm_regulator_data *drvdata = rdev_get_drvdata(dev); - - if (selector >= dev->desc->n_voltages) - return -EINVAL; - - return drvdata->pdata->duty_cycle_table[selector].uV; -} - -static struct regulator_ops st_pwm_regulator_voltage_ops = { - .set_voltage_sel = st_pwm_regulator_set_voltage_sel, - .get_voltage_sel = st_pwm_regulator_get_voltage_sel, - .list_voltage = st_pwm_regulator_list_voltage, - .map_voltage = regulator_map_voltage_iterate, -}; - -static struct st_pwm_voltages b2105_duty_cycle_table[] = { - { .uV = 1114000, .dutycycle = 0, }, - { .uV = 1095000, .dutycycle = 10, }, - { .uV = 1076000, .dutycycle = 20, }, - { .uV = 1056000, .dutycycle = 30, }, - { .uV = 1036000, .dutycycle = 40, }, - { .uV = 1016000, .dutycycle = 50, }, - /* WARNING: Values above 50% duty-cycle cause boot failures. */ -}; - -static const struct regulator_desc b2105_desc = { - .name = "b2105-pwm-regulator", - .ops = &st_pwm_regulator_voltage_ops, - .type = REGULATOR_VOLTAGE, - .owner = THIS_MODULE, - .n_voltages = ARRAY_SIZE(b2105_duty_cycle_table), - .supply_name = "pwm", -}; - -static const struct st_pwm_regulator_pdata b2105_info = { - .desc = &b2105_desc, - .duty_cycle_table = b2105_duty_cycle_table, -}; - -static const struct of_device_id st_pwm_of_match[] = { - { .compatible = "st,b2105-pwm-regulator", .data = &b2105_info, }, - { }, -}; -MODULE_DEVICE_TABLE(of, st_pwm_of_match); - -static int st_pwm_regulator_probe(struct platform_device *pdev) -{ - struct st_pwm_regulator_data *drvdata; - struct regulator_dev *regulator; - struct regulator_config config = { }; - struct device_node *np = pdev->dev.of_node; - const struct of_device_id *of_match; - - if (!np) { - dev_err(&pdev->dev, "Device Tree node missing\n"); - return -EINVAL; - } - - drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL); - if (!drvdata) - return -ENOMEM; - - of_match = of_match_device(st_pwm_of_match, &pdev->dev); - if (!of_match) { - dev_err(&pdev->dev, "failed to match of device\n"); - return -ENODEV; - } - drvdata->pdata = of_match->data; - - config.init_data = of_get_regulator_init_data(&pdev->dev, np); - if (!config.init_data) - return -ENOMEM; - - config.of_node = np; - config.dev = &pdev->dev; - config.driver_data = drvdata; - - drvdata->pwm = devm_pwm_get(&pdev->dev, NULL); - if (IS_ERR(drvdata->pwm)) { - dev_err(&pdev->dev, "Failed to get PWM\n"); - return PTR_ERR(drvdata->pwm); - } - - regulator = devm_regulator_register(&pdev->dev, - drvdata->pdata->desc, &config); - if (IS_ERR(regulator)) { - dev_err(&pdev->dev, "Failed to register regulator %s\n", - drvdata->pdata->desc->name); - return PTR_ERR(regulator); - } - - return 0; -} - -static struct platform_driver st_pwm_regulator_driver = { - .driver = { - .name = "st-pwm-regulator", - .owner = THIS_MODULE, - .of_match_table = of_match_ptr(st_pwm_of_match), - }, - .probe = st_pwm_regulator_probe, -}; - -module_platform_driver(st_pwm_regulator_driver); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Lee Jones "); -MODULE_DESCRIPTION("ST PWM Regulator Driver"); -MODULE_ALIAS("platform:st_pwm-regulator"); From fbf7974427910a3f13fcb76a3493f9da0b141120 Mon Sep 17 00:00:00 2001 From: Chris Zhong Date: Sun, 28 Sep 2014 10:28:54 +0800 Subject: [PATCH 70/71] regulator: pwm-regulator: add devicetree bindings for pwm regulator Document the pwm regulator Signed-off-by: Chris Zhong Reviewed-by: Doug Anderson Signed-off-by: Mark Brown --- .../bindings/regulator/pwm-regulator.txt | 27 +++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/pwm-regulator.txt diff --git a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt new file mode 100644 index 000000000000..ce91f61feb12 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt @@ -0,0 +1,27 @@ +pwm regulator bindings + +Required properties: +- compatible: Should be "pwm-regulator" +- pwms: OF device-tree PWM specification (see PWM binding pwm.txt) +- voltage-table: voltage and duty table, include 2 members in each set of + brackets, first one is voltage(unit: uv), the next is duty(unit: percent) + +Any property defined as part of the core regulator binding defined in +regulator.txt can also be used. + +Example: + pwm_regulator { + compatible = "pwm-regulator; + pwms = <&pwm1 0 8448 0>; + + voltage-table = <1114000 0>, + <1095000 10>, + <1076000 20>, + <1056000 30>, + <1036000 40>, + <1016000 50>; + + regulator-min-microvolt = <1016000>; + regulator-max-microvolt = <1114000>; + regulator-name = "vdd_logic"; + }; From 4e7089f3f7ab3edf177bbdb84107aff3193e855e Mon Sep 17 00:00:00 2001 From: James Ban Date: Mon, 29 Sep 2014 16:59:20 +0900 Subject: [PATCH 71/71] regulator: da9211: Fix a bug in update of mask bit This is a patch for fixing a bug about mask bit operation. Signed-off-by: James Ban Signed-off-by: Mark Brown --- drivers/regulator/da9211-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/da9211-regulator.c b/drivers/regulator/da9211-regulator.c index 1482adafa1ad..05f879a5d24e 100644 --- a/drivers/regulator/da9211-regulator.c +++ b/drivers/regulator/da9211-regulator.c @@ -282,7 +282,7 @@ static int da9211_regulator_init(struct da9211 *chip) if (chip->chip_irq != 0) { ret = regmap_update_bits(chip->regmap, - DA9211_REG_MASK_B, DA9211_M_OV_CURR_A << i, 1); + DA9211_REG_MASK_B, DA9211_M_OV_CURR_A << i, 0); if (ret < 0) { dev_err(chip->dev, "Failed to update mask reg: %d\n", ret);