587 lines
14 KiB
C
587 lines
14 KiB
C
/*
|
|
* MFD core driver for Rockchip RK808/RK818
|
|
*
|
|
* Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
|
|
*
|
|
* Author: Chris Zhong <zyw@rock-chips.com>
|
|
* Author: Zhang Qing <zhangqing@rock-chips.com>
|
|
*
|
|
* Copyright (C) 2016 PHYTEC Messtechnik GmbH
|
|
*
|
|
* Author: Wadim Egorov <w.egorov@phytec.de>
|
|
*
|
|
* 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 <linux/i2c.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/mfd/rk808.h>
|
|
#include <linux/mfd/core.h>
|
|
#include <linux/module.h>
|
|
#include <linux/of_device.h>
|
|
#include <linux/regmap.h>
|
|
|
|
struct rk808_reg_data {
|
|
int addr;
|
|
int mask;
|
|
int value;
|
|
};
|
|
|
|
static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg)
|
|
{
|
|
/*
|
|
* Notes:
|
|
* - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
|
|
* we don't use that feature. It's better to cache.
|
|
* - It's unlikely we care that RK808_DEVCTRL_REG is volatile since
|
|
* bits are cleared in case when we shutoff anyway, but better safe.
|
|
*/
|
|
|
|
switch (reg) {
|
|
case RK808_SECONDS_REG ... RK808_WEEKS_REG:
|
|
case RK808_RTC_STATUS_REG:
|
|
case RK808_VB_MON_REG:
|
|
case RK808_THERMAL_REG:
|
|
case RK808_DCDC_UV_STS_REG:
|
|
case RK808_LDO_UV_STS_REG:
|
|
case RK808_DCDC_PG_REG:
|
|
case RK808_LDO_PG_REG:
|
|
case RK808_DEVCTRL_REG:
|
|
case RK808_INT_STS_REG1:
|
|
case RK808_INT_STS_REG2:
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static const struct regmap_config rk818_regmap_config = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
.max_register = RK818_USB_CTRL_REG,
|
|
.cache_type = REGCACHE_RBTREE,
|
|
.volatile_reg = rk808_is_volatile_reg,
|
|
};
|
|
|
|
static const struct regmap_config rk805_regmap_config = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
.max_register = RK805_OFF_SOURCE_REG,
|
|
.cache_type = REGCACHE_RBTREE,
|
|
.volatile_reg = rk808_is_volatile_reg,
|
|
};
|
|
|
|
static const struct regmap_config rk808_regmap_config = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
.max_register = RK808_IO_POL_REG,
|
|
.cache_type = REGCACHE_RBTREE,
|
|
.volatile_reg = rk808_is_volatile_reg,
|
|
};
|
|
|
|
static struct resource rtc_resources[] = {
|
|
{
|
|
.start = RK808_IRQ_RTC_ALARM,
|
|
.end = RK808_IRQ_RTC_ALARM,
|
|
.flags = IORESOURCE_IRQ,
|
|
}
|
|
};
|
|
|
|
static struct resource rk805_key_resources[] = {
|
|
{
|
|
.start = RK805_IRQ_PWRON_FALL,
|
|
.end = RK805_IRQ_PWRON_FALL,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
{
|
|
.start = RK805_IRQ_PWRON_RISE,
|
|
.end = RK805_IRQ_PWRON_RISE,
|
|
.flags = IORESOURCE_IRQ,
|
|
}
|
|
};
|
|
|
|
static const struct mfd_cell rk805s[] = {
|
|
{ .name = "rk808-clkout", },
|
|
{ .name = "rk808-regulator", },
|
|
{ .name = "rk805-pinctrl", },
|
|
{
|
|
.name = "rk808-rtc",
|
|
.num_resources = ARRAY_SIZE(rtc_resources),
|
|
.resources = &rtc_resources[0],
|
|
},
|
|
{ .name = "rk805-pwrkey",
|
|
.num_resources = ARRAY_SIZE(rk805_key_resources),
|
|
.resources = &rk805_key_resources[0],
|
|
},
|
|
};
|
|
|
|
static const struct mfd_cell rk808s[] = {
|
|
{ .name = "rk808-clkout", },
|
|
{ .name = "rk808-regulator", },
|
|
{
|
|
.name = "rk808-rtc",
|
|
.num_resources = ARRAY_SIZE(rtc_resources),
|
|
.resources = rtc_resources,
|
|
},
|
|
};
|
|
|
|
static const struct mfd_cell rk818s[] = {
|
|
{ .name = "rk808-clkout", },
|
|
{ .name = "rk808-regulator", },
|
|
{
|
|
.name = "rk808-rtc",
|
|
.num_resources = ARRAY_SIZE(rtc_resources),
|
|
.resources = rtc_resources,
|
|
},
|
|
};
|
|
|
|
static const struct rk808_reg_data rk805_pre_init_reg[] = {
|
|
{RK805_BUCK1_CONFIG_REG, RK805_BUCK1_2_ILMAX_MASK,
|
|
RK805_BUCK1_2_ILMAX_4000MA},
|
|
{RK805_BUCK2_CONFIG_REG, RK805_BUCK1_2_ILMAX_MASK,
|
|
RK805_BUCK1_2_ILMAX_4000MA},
|
|
{RK805_BUCK3_CONFIG_REG, RK805_BUCK3_4_ILMAX_MASK,
|
|
RK805_BUCK3_ILMAX_3000MA},
|
|
{RK805_BUCK4_CONFIG_REG, RK805_BUCK3_4_ILMAX_MASK,
|
|
RK805_BUCK4_ILMAX_3500MA},
|
|
{RK805_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_400MA},
|
|
{RK805_GPIO_IO_POL_REG, SLP_SD_MSK, SLEEP_FUN},
|
|
{RK805_THERMAL_REG, TEMP_HOTDIE_MSK, TEMP115C},
|
|
};
|
|
|
|
static const struct rk808_reg_data rk808_pre_init_reg[] = {
|
|
{ RK808_BUCK3_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_150MA },
|
|
{ RK808_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_200MA },
|
|
{ RK808_BOOST_CONFIG_REG, BOOST_ILMIN_MASK, BOOST_ILMIN_100MA },
|
|
{ RK808_BUCK1_CONFIG_REG, BUCK1_RATE_MASK, BUCK_ILMIN_200MA },
|
|
{ RK808_BUCK2_CONFIG_REG, BUCK2_RATE_MASK, BUCK_ILMIN_200MA },
|
|
{ RK808_DCDC_UV_ACT_REG, BUCK_UV_ACT_MASK, BUCK_UV_ACT_DISABLE},
|
|
{ RK808_VB_MON_REG, MASK_ALL, VB_LO_ACT |
|
|
VB_LO_SEL_3500MV },
|
|
};
|
|
|
|
static const struct rk808_reg_data rk818_pre_init_reg[] = {
|
|
/* improve efficiency */
|
|
{ RK818_BUCK2_CONFIG_REG, BUCK2_RATE_MASK, BUCK_ILMIN_250MA },
|
|
{ RK818_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_250MA },
|
|
{ RK818_BOOST_CONFIG_REG, BOOST_ILMIN_MASK, BOOST_ILMIN_100MA },
|
|
{ RK818_USB_CTRL_REG, RK818_USB_ILIM_SEL_MASK,
|
|
RK818_USB_ILMIN_2000MA },
|
|
/* close charger when usb lower then 3.4V */
|
|
{ RK818_USB_CTRL_REG, RK818_USB_CHG_SD_VSEL_MASK,
|
|
(0x7 << 4) },
|
|
/* no action when vref */
|
|
{ RK818_H5V_EN_REG, BIT(1), RK818_REF_RDY_CTRL },
|
|
/* enable HDMI 5V */
|
|
{ RK818_H5V_EN_REG, BIT(0), RK818_H5V_EN },
|
|
{ RK808_VB_MON_REG, MASK_ALL, VB_LO_ACT |
|
|
VB_LO_SEL_3500MV },
|
|
};
|
|
|
|
static const struct regmap_irq rk805_irqs[] = {
|
|
[RK805_IRQ_PWRON_RISE] = {
|
|
.mask = RK805_IRQ_PWRON_RISE_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK805_IRQ_VB_LOW] = {
|
|
.mask = RK805_IRQ_VB_LOW_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK805_IRQ_PWRON] = {
|
|
.mask = RK805_IRQ_PWRON_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK805_IRQ_PWRON_LP] = {
|
|
.mask = RK805_IRQ_PWRON_LP_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK805_IRQ_HOTDIE] = {
|
|
.mask = RK805_IRQ_HOTDIE_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK805_IRQ_RTC_ALARM] = {
|
|
.mask = RK805_IRQ_RTC_ALARM_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK805_IRQ_RTC_PERIOD] = {
|
|
.mask = RK805_IRQ_RTC_PERIOD_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK805_IRQ_PWRON_FALL] = {
|
|
.mask = RK805_IRQ_PWRON_FALL_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
};
|
|
|
|
static const struct regmap_irq rk808_irqs[] = {
|
|
/* INT_STS */
|
|
[RK808_IRQ_VOUT_LO] = {
|
|
.mask = RK808_IRQ_VOUT_LO_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK808_IRQ_VB_LO] = {
|
|
.mask = RK808_IRQ_VB_LO_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK808_IRQ_PWRON] = {
|
|
.mask = RK808_IRQ_PWRON_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK808_IRQ_PWRON_LP] = {
|
|
.mask = RK808_IRQ_PWRON_LP_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK808_IRQ_HOTDIE] = {
|
|
.mask = RK808_IRQ_HOTDIE_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK808_IRQ_RTC_ALARM] = {
|
|
.mask = RK808_IRQ_RTC_ALARM_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK808_IRQ_RTC_PERIOD] = {
|
|
.mask = RK808_IRQ_RTC_PERIOD_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
|
|
/* INT_STS2 */
|
|
[RK808_IRQ_PLUG_IN_INT] = {
|
|
.mask = RK808_IRQ_PLUG_IN_INT_MSK,
|
|
.reg_offset = 1,
|
|
},
|
|
[RK808_IRQ_PLUG_OUT_INT] = {
|
|
.mask = RK808_IRQ_PLUG_OUT_INT_MSK,
|
|
.reg_offset = 1,
|
|
},
|
|
};
|
|
|
|
static const struct regmap_irq rk818_irqs[] = {
|
|
/* INT_STS */
|
|
[RK818_IRQ_VOUT_LO] = {
|
|
.mask = RK818_IRQ_VOUT_LO_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK818_IRQ_VB_LO] = {
|
|
.mask = RK818_IRQ_VB_LO_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK818_IRQ_PWRON] = {
|
|
.mask = RK818_IRQ_PWRON_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK818_IRQ_PWRON_LP] = {
|
|
.mask = RK818_IRQ_PWRON_LP_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK818_IRQ_HOTDIE] = {
|
|
.mask = RK818_IRQ_HOTDIE_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK818_IRQ_RTC_ALARM] = {
|
|
.mask = RK818_IRQ_RTC_ALARM_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK818_IRQ_RTC_PERIOD] = {
|
|
.mask = RK818_IRQ_RTC_PERIOD_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
[RK818_IRQ_USB_OV] = {
|
|
.mask = RK818_IRQ_USB_OV_MSK,
|
|
.reg_offset = 0,
|
|
},
|
|
|
|
/* INT_STS2 */
|
|
[RK818_IRQ_PLUG_IN] = {
|
|
.mask = RK818_IRQ_PLUG_IN_MSK,
|
|
.reg_offset = 1,
|
|
},
|
|
[RK818_IRQ_PLUG_OUT] = {
|
|
.mask = RK818_IRQ_PLUG_OUT_MSK,
|
|
.reg_offset = 1,
|
|
},
|
|
[RK818_IRQ_CHG_OK] = {
|
|
.mask = RK818_IRQ_CHG_OK_MSK,
|
|
.reg_offset = 1,
|
|
},
|
|
[RK818_IRQ_CHG_TE] = {
|
|
.mask = RK818_IRQ_CHG_TE_MSK,
|
|
.reg_offset = 1,
|
|
},
|
|
[RK818_IRQ_CHG_TS1] = {
|
|
.mask = RK818_IRQ_CHG_TS1_MSK,
|
|
.reg_offset = 1,
|
|
},
|
|
[RK818_IRQ_TS2] = {
|
|
.mask = RK818_IRQ_TS2_MSK,
|
|
.reg_offset = 1,
|
|
},
|
|
[RK818_IRQ_CHG_CVTLIM] = {
|
|
.mask = RK818_IRQ_CHG_CVTLIM_MSK,
|
|
.reg_offset = 1,
|
|
},
|
|
[RK818_IRQ_DISCHG_ILIM] = {
|
|
.mask = RK818_IRQ_DISCHG_ILIM_MSK,
|
|
.reg_offset = 1,
|
|
},
|
|
};
|
|
|
|
static struct regmap_irq_chip rk805_irq_chip = {
|
|
.name = "rk805",
|
|
.irqs = rk805_irqs,
|
|
.num_irqs = ARRAY_SIZE(rk805_irqs),
|
|
.num_regs = 1,
|
|
.status_base = RK805_INT_STS_REG,
|
|
.mask_base = RK805_INT_STS_MSK_REG,
|
|
.ack_base = RK805_INT_STS_REG,
|
|
.init_ack_masked = true,
|
|
};
|
|
|
|
static const struct regmap_irq_chip rk808_irq_chip = {
|
|
.name = "rk808",
|
|
.irqs = rk808_irqs,
|
|
.num_irqs = ARRAY_SIZE(rk808_irqs),
|
|
.num_regs = 2,
|
|
.irq_reg_stride = 2,
|
|
.status_base = RK808_INT_STS_REG1,
|
|
.mask_base = RK808_INT_STS_MSK_REG1,
|
|
.ack_base = RK808_INT_STS_REG1,
|
|
.init_ack_masked = true,
|
|
};
|
|
|
|
static const struct regmap_irq_chip rk818_irq_chip = {
|
|
.name = "rk818",
|
|
.irqs = rk818_irqs,
|
|
.num_irqs = ARRAY_SIZE(rk818_irqs),
|
|
.num_regs = 2,
|
|
.irq_reg_stride = 2,
|
|
.status_base = RK818_INT_STS_REG1,
|
|
.mask_base = RK818_INT_STS_MSK_REG1,
|
|
.ack_base = RK818_INT_STS_REG1,
|
|
.init_ack_masked = true,
|
|
};
|
|
|
|
static struct i2c_client *rk808_i2c_client;
|
|
|
|
static void rk805_device_shutdown(void)
|
|
{
|
|
int ret;
|
|
struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
|
|
|
|
if (!rk808) {
|
|
dev_warn(&rk808_i2c_client->dev,
|
|
"have no rk805, so do nothing here\n");
|
|
return;
|
|
}
|
|
|
|
ret = regmap_update_bits(rk808->regmap,
|
|
RK805_DEV_CTRL_REG,
|
|
DEV_OFF, DEV_OFF);
|
|
if (ret)
|
|
dev_err(&rk808_i2c_client->dev, "power off error!\n");
|
|
}
|
|
|
|
static void rk808_device_shutdown(void)
|
|
{
|
|
int ret;
|
|
struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
|
|
|
|
if (!rk808) {
|
|
dev_warn(&rk808_i2c_client->dev,
|
|
"have no rk808, so do nothing here\n");
|
|
return;
|
|
}
|
|
|
|
ret = regmap_update_bits(rk808->regmap,
|
|
RK808_DEVCTRL_REG,
|
|
DEV_OFF_RST, DEV_OFF_RST);
|
|
if (ret)
|
|
dev_err(&rk808_i2c_client->dev, "power off error!\n");
|
|
}
|
|
|
|
static void rk818_device_shutdown(void)
|
|
{
|
|
int ret;
|
|
struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
|
|
|
|
if (!rk808) {
|
|
dev_warn(&rk808_i2c_client->dev,
|
|
"have no rk818, so do nothing here\n");
|
|
return;
|
|
}
|
|
|
|
ret = regmap_update_bits(rk808->regmap,
|
|
RK818_DEVCTRL_REG,
|
|
DEV_OFF, DEV_OFF);
|
|
if (ret)
|
|
dev_err(&rk808_i2c_client->dev, "power off error!\n");
|
|
}
|
|
|
|
static const struct of_device_id rk808_of_match[] = {
|
|
{ .compatible = "rockchip,rk805" },
|
|
{ .compatible = "rockchip,rk808" },
|
|
{ .compatible = "rockchip,rk818" },
|
|
{ },
|
|
};
|
|
MODULE_DEVICE_TABLE(of, rk808_of_match);
|
|
|
|
static int rk808_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct device_node *np = client->dev.of_node;
|
|
struct rk808 *rk808;
|
|
const struct rk808_reg_data *pre_init_reg;
|
|
const struct mfd_cell *cells;
|
|
void (*pm_pwroff_fn)(void);
|
|
int nr_pre_init_regs;
|
|
int nr_cells;
|
|
int pm_off = 0, msb, lsb;
|
|
int ret;
|
|
int i;
|
|
|
|
rk808 = devm_kzalloc(&client->dev, sizeof(*rk808), GFP_KERNEL);
|
|
if (!rk808)
|
|
return -ENOMEM;
|
|
|
|
/* Read chip variant */
|
|
msb = i2c_smbus_read_byte_data(client, RK808_ID_MSB);
|
|
if (msb < 0) {
|
|
dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
|
|
RK808_ID_MSB);
|
|
return msb;
|
|
}
|
|
|
|
lsb = i2c_smbus_read_byte_data(client, RK808_ID_LSB);
|
|
if (lsb < 0) {
|
|
dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
|
|
RK808_ID_LSB);
|
|
return lsb;
|
|
}
|
|
|
|
rk808->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK;
|
|
dev_info(&client->dev, "chip id: 0x%x\n", (unsigned int)rk808->variant);
|
|
|
|
switch (rk808->variant) {
|
|
case RK805_ID:
|
|
rk808->regmap_cfg = &rk805_regmap_config;
|
|
rk808->regmap_irq_chip = &rk805_irq_chip;
|
|
pre_init_reg = rk805_pre_init_reg;
|
|
nr_pre_init_regs = ARRAY_SIZE(rk805_pre_init_reg);
|
|
cells = rk805s;
|
|
nr_cells = ARRAY_SIZE(rk805s);
|
|
pm_pwroff_fn = rk805_device_shutdown;
|
|
break;
|
|
case RK808_ID:
|
|
rk808->regmap_cfg = &rk808_regmap_config;
|
|
rk808->regmap_irq_chip = &rk808_irq_chip;
|
|
pre_init_reg = rk808_pre_init_reg;
|
|
nr_pre_init_regs = ARRAY_SIZE(rk808_pre_init_reg);
|
|
cells = rk808s;
|
|
nr_cells = ARRAY_SIZE(rk808s);
|
|
pm_pwroff_fn = rk808_device_shutdown;
|
|
break;
|
|
case RK818_ID:
|
|
rk808->regmap_cfg = &rk818_regmap_config;
|
|
rk808->regmap_irq_chip = &rk818_irq_chip;
|
|
pre_init_reg = rk818_pre_init_reg;
|
|
nr_pre_init_regs = ARRAY_SIZE(rk818_pre_init_reg);
|
|
cells = rk818s;
|
|
nr_cells = ARRAY_SIZE(rk818s);
|
|
pm_pwroff_fn = rk818_device_shutdown;
|
|
break;
|
|
default:
|
|
dev_err(&client->dev, "Unsupported RK8XX ID %lu\n",
|
|
rk808->variant);
|
|
return -EINVAL;
|
|
}
|
|
|
|
rk808->i2c = client;
|
|
i2c_set_clientdata(client, rk808);
|
|
|
|
rk808->regmap = devm_regmap_init_i2c(client, rk808->regmap_cfg);
|
|
if (IS_ERR(rk808->regmap)) {
|
|
dev_err(&client->dev, "regmap initialization failed\n");
|
|
return PTR_ERR(rk808->regmap);
|
|
}
|
|
|
|
if (!client->irq) {
|
|
dev_err(&client->dev, "No interrupt support, no core IRQ\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = regmap_add_irq_chip(rk808->regmap, client->irq,
|
|
IRQF_ONESHOT, -1,
|
|
rk808->regmap_irq_chip, &rk808->irq_data);
|
|
if (ret) {
|
|
dev_err(&client->dev, "Failed to add irq_chip %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
for (i = 0; i < nr_pre_init_regs; i++) {
|
|
ret = regmap_update_bits(rk808->regmap,
|
|
pre_init_reg[i].addr,
|
|
pre_init_reg[i].mask,
|
|
pre_init_reg[i].value);
|
|
if (ret) {
|
|
dev_err(&client->dev,
|
|
"0x%x write err\n",
|
|
pre_init_reg[i].addr);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_NONE,
|
|
cells, nr_cells, NULL, 0,
|
|
regmap_irq_get_domain(rk808->irq_data));
|
|
if (ret) {
|
|
dev_err(&client->dev, "failed to add MFD devices %d\n", ret);
|
|
goto err_irq;
|
|
}
|
|
|
|
pm_off = of_property_read_bool(np,
|
|
"rockchip,system-power-controller");
|
|
if (pm_off && !pm_power_off) {
|
|
rk808_i2c_client = client;
|
|
pm_power_off = pm_pwroff_fn;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_irq:
|
|
regmap_del_irq_chip(client->irq, rk808->irq_data);
|
|
return ret;
|
|
}
|
|
|
|
static int rk808_remove(struct i2c_client *client)
|
|
{
|
|
struct rk808 *rk808 = i2c_get_clientdata(client);
|
|
|
|
regmap_del_irq_chip(client->irq, rk808->irq_data);
|
|
pm_power_off = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct i2c_driver rk808_i2c_driver = {
|
|
.driver = {
|
|
.name = "rk808",
|
|
.of_match_table = rk808_of_match,
|
|
},
|
|
.probe = rk808_probe,
|
|
.remove = rk808_remove,
|
|
};
|
|
|
|
module_i2c_driver(rk808_i2c_driver);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
|
|
MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>");
|
|
MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>");
|
|
MODULE_DESCRIPTION("RK808/RK818 PMIC driver");
|