hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'for-lak' of git://git.linuxtogo.org/home/thesing/collie into sa1100

This commit is contained in:
Russell King 2009-12-06 16:53:09 +00:00
parent 729fae44dd 9823b2d0f9
commit ba71e17269
15 changed files with 649 additions and 63 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

79
arch/arm/mach-sa1100/collie.c
View File

@ -26,6 +26,7 @@
#include <linux/mtd/partitions.h>
#include <linux/timer.h>
#include <linux/gpio.h>
#include <linux/pda_power.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
@ -56,6 +57,7 @@ static struct resource collie_scoop_resources[] = {
static struct scoop_config collie_scoop_setup = {
.io_dir = COLLIE_SCOOP_IO_DIR,
.io_out = COLLIE_SCOOP_IO_OUT,
.gpio_base = COLLIE_SCOOP_GPIO_BASE,
};
struct platform_device colliescoop_device = {
@ -85,6 +87,70 @@ static struct scoop_pcmcia_config collie_pcmcia_config = {
static struct mcp_plat_data collie_mcp_data = {
.mccr0 = MCCR0_ADM | MCCR0_ExtClk,
.sclk_rate = 9216000,
.gpio_base = COLLIE_TC35143_GPIO_BASE,
};
/*
* Collie AC IN
*/
static int collie_power_init(struct device *dev)
{
int ret = gpio_request(COLLIE_GPIO_AC_IN, "ac in");
if (ret)
goto err_gpio_req;
ret = gpio_direction_input(COLLIE_GPIO_AC_IN);
if (ret)
goto err_gpio_in;
return 0;
err_gpio_in:
gpio_free(COLLIE_GPIO_AC_IN);
err_gpio_req:
return ret;
}
static void collie_power_exit(struct device *dev)
{
gpio_free(COLLIE_GPIO_AC_IN);
}
static int collie_power_ac_online(void)
{
return gpio_get_value(COLLIE_GPIO_AC_IN) == 2;
}
static char *collie_ac_supplied_to[] = {
"main-battery",
"backup-battery",
};
static struct pda_power_pdata collie_power_data = {
.init = collie_power_init,
.is_ac_online = collie_power_ac_online,
.exit = collie_power_exit,
.supplied_to = collie_ac_supplied_to,
.num_supplicants = ARRAY_SIZE(collie_ac_supplied_to),
};
static struct resource collie_power_resource[] = {
{
.name = "ac",
.start = gpio_to_irq(COLLIE_GPIO_AC_IN),
.end = gpio_to_irq(COLLIE_GPIO_AC_IN),
.flags = IORESOURCE_IRQ |
IORESOURCE_IRQ_HIGHEDGE |
IORESOURCE_IRQ_LOWEDGE,
},
};
static struct platform_device collie_power_device = {
.name = "pda-power",
.id = -1,
.dev.platform_data = &collie_power_data,
.resource = collie_power_resource,
.num_resources = ARRAY_SIZE(collie_power_resource),
};
#ifdef CONFIG_SHARP_LOCOMO
@ -178,6 +244,7 @@ struct platform_device collie_locomo_device = {
static struct platform_device *devices[] __initdata = {
&collie_locomo_device,
&colliescoop_device,
&collie_power_device,
};
static struct mtd_partition collie_partitions[] = {
@ -248,22 +315,24 @@ static void __init collie_init(void)
GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
COLLIE_GPIO_UCB1x00_RESET | COLLIE_GPIO_nMIC_ON |
COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
_COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON |
_COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
PWER = COLLIE_GPIO_AC_IN | COLLIE_GPIO_CO | COLLIE_GPIO_ON_KEY |
COLLIE_GPIO_WAKEUP | COLLIE_GPIO_nREMOCON_INT | PWER_RTC;
PWER = _COLLIE_GPIO_AC_IN | _COLLIE_GPIO_CO | _COLLIE_GPIO_ON_KEY |
_COLLIE_GPIO_WAKEUP | _COLLIE_GPIO_nREMOCON_INT | PWER_RTC;
PGSR = COLLIE_GPIO_nREMOCON_ON;
PGSR = _COLLIE_GPIO_nREMOCON_ON;
PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
PCFR = PCFR_OPDE;
GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
platform_scoop_config = &collie_pcmcia_config;

77
arch/arm/mach-sa1100/include/mach/collie.h
View File

@ -25,29 +25,39 @@
#define COLLIE_GPIO_VPEN (COLLIE_SCOOP_GPIO_BASE + 7)
#define COLLIE_SCP_LB_VOL_CHG SCOOP_GPCR_PA19
#define COLLIE_SCOOP_IO_DIR ( COLLIE_SCP_MUTE_L | COLLIE_SCP_MUTE_R | \
#define COLLIE_SCOOP_IO_DIR (COLLIE_SCP_MUTE_L | COLLIE_SCP_MUTE_R | \
COLLIE_SCP_5VON | COLLIE_SCP_AMP_ON | \
COLLIE_SCP_LB_VOL_CHG )
#define COLLIE_SCOOP_IO_OUT ( COLLIE_SCP_MUTE_L | COLLIE_SCP_MUTE_R )
COLLIE_SCP_LB_VOL_CHG)
#define COLLIE_SCOOP_IO_OUT (COLLIE_SCP_MUTE_L | COLLIE_SCP_MUTE_R)
/* GPIOs for which the generic definition doesn't say much */
/* GPIOs for gpiolib */
#define COLLIE_GPIO_ON_KEY GPIO_GPIO (0)
#define COLLIE_GPIO_AC_IN GPIO_GPIO (1)
#define COLLIE_GPIO_SDIO_INT GPIO_GPIO (11)
#define COLLIE_GPIO_CF_IRQ GPIO_GPIO (14)
#define COLLIE_GPIO_nREMOCON_INT GPIO_GPIO (15)
#define COLLIE_GPIO_UCB1x00_RESET GPIO_GPIO (16)
#define COLLIE_GPIO_nMIC_ON GPIO_GPIO (17)
#define COLLIE_GPIO_nREMOCON_ON GPIO_GPIO (18)
#define COLLIE_GPIO_CO GPIO_GPIO (20)
#define COLLIE_GPIO_MCP_CLK GPIO_GPIO (21)
#define COLLIE_GPIO_CF_CD GPIO_GPIO (22)
#define COLLIE_GPIO_UCB1x00_IRQ GPIO_GPIO (23)
#define COLLIE_GPIO_WAKEUP GPIO_GPIO (24)
#define COLLIE_GPIO_GA_INT GPIO_GPIO (25)
#define COLLIE_GPIO_MAIN_BAT_LOW GPIO_GPIO (26)
#define COLLIE_GPIO_ON_KEY (0)
#define COLLIE_GPIO_AC_IN (1)
#define COLLIE_GPIO_SDIO_INT (11)
#define COLLIE_GPIO_CF_IRQ (14)
#define COLLIE_GPIO_nREMOCON_INT (15)
#define COLLIE_GPIO_UCB1x00_RESET (16)
#define COLLIE_GPIO_nMIC_ON (17)
#define COLLIE_GPIO_nREMOCON_ON (18)
#define COLLIE_GPIO_CO (20)
#define COLLIE_GPIO_MCP_CLK (21)
#define COLLIE_GPIO_CF_CD (22)
#define COLLIE_GPIO_UCB1x00_IRQ (23)
#define COLLIE_GPIO_WAKEUP (24)
#define COLLIE_GPIO_GA_INT (25)
#define COLLIE_GPIO_MAIN_BAT_LOW (26)
/* GPIO definitions for direct register access */
#define _COLLIE_GPIO_ON_KEY GPIO_GPIO(0)
#define _COLLIE_GPIO_AC_IN GPIO_GPIO(1)
#define _COLLIE_GPIO_nREMOCON_INT GPIO_GPIO(15)
#define _COLLIE_GPIO_UCB1x00_RESET GPIO_GPIO(16)
#define _COLLIE_GPIO_nMIC_ON GPIO_GPIO(17)
#define _COLLIE_GPIO_nREMOCON_ON GPIO_GPIO(18)
#define _COLLIE_GPIO_CO GPIO_GPIO(20)
#define _COLLIE_GPIO_WAKEUP GPIO_GPIO(24)
/* Interrupts */
#define COLLIE_IRQ_GPIO_ON_KEY IRQ_GPIO0
@ -70,19 +80,20 @@
#define COLLIE_LCM_IRQ_GPIO_nSD_WP IRQ_LOCOMO_GPIO14
/* GPIO's on the TC35143AF (Toshiba Analog Frontend) */
#define COLLIE_TC35143_GPIO_VERSION0 UCB_IO_0 /* GPIO0=Version */
#define COLLIE_TC35143_GPIO_TBL_CHK UCB_IO_1 /* GPIO1=TBL_CHK */
#define COLLIE_TC35143_GPIO_VPEN_ON UCB_IO_2 /* GPIO2=VPNE_ON */
#define COLLIE_TC35143_GPIO_IR_ON UCB_IO_3 /* GPIO3=IR_ON */
#define COLLIE_TC35143_GPIO_AMP_ON UCB_IO_4 /* GPIO4=AMP_ON */
#define COLLIE_TC35143_GPIO_VERSION1 UCB_IO_5 /* GPIO5=Version */
#define COLLIE_TC35143_GPIO_FS8KLPF UCB_IO_5 /* GPIO5=fs 8k LPF */
#define COLLIE_TC35143_GPIO_BUZZER_BIAS UCB_IO_6 /* GPIO6=BUZZER BIAS */
#define COLLIE_TC35143_GPIO_MBAT_ON UCB_IO_7 /* GPIO7=MBAT_ON */
#define COLLIE_TC35143_GPIO_BBAT_ON UCB_IO_8 /* GPIO8=BBAT_ON */
#define COLLIE_TC35143_GPIO_TMP_ON UCB_IO_9 /* GPIO9=TMP_ON */
#define COLLIE_TC35143_GPIO_IN ( UCB_IO_0 | UCB_IO_2 | UCB_IO_5 )
#define COLLIE_TC35143_GPIO_OUT ( UCB_IO_1 | UCB_IO_3 | UCB_IO_4 | UCB_IO_6 | \
UCB_IO_7 | UCB_IO_8 | UCB_IO_9 )
#define COLLIE_TC35143_GPIO_BASE (GPIO_MAX + 13)
#define COLLIE_TC35143_GPIO_VERSION0 UCB_IO_0
#define COLLIE_TC35143_GPIO_TBL_CHK UCB_IO_1
#define COLLIE_TC35143_GPIO_VPEN_ON UCB_IO_2
#define COLLIE_TC35143_GPIO_IR_ON UCB_IO_3
#define COLLIE_TC35143_GPIO_AMP_ON UCB_IO_4
#define COLLIE_TC35143_GPIO_VERSION1 UCB_IO_5
#define COLLIE_TC35143_GPIO_FS8KLPF UCB_IO_5
#define COLLIE_TC35143_GPIO_BUZZER_BIAS UCB_IO_6
#define COLLIE_GPIO_MBAT_ON (COLLIE_TC35143_GPIO_BASE + 7)
#define COLLIE_GPIO_BBAT_ON (COLLIE_TC35143_GPIO_BASE + 8)
#define COLLIE_GPIO_TMP_ON (COLLIE_TC35143_GPIO_BASE + 9)
#define COLLIE_TC35143_GPIO_IN (UCB_IO_0 | UCB_IO_2 | UCB_IO_5)
#define COLLIE_TC35143_GPIO_OUT (UCB_IO_1 | UCB_IO_3 | UCB_IO_4 \
| UCB_IO_6)
#endif

19
arch/arm/mach-sa1100/include/mach/gpio.h
View File

@ -49,20 +49,9 @@ static inline void gpio_set_value(unsigned gpio, int value)
#define gpio_cansleep __gpio_cansleep
static inline unsigned gpio_to_irq(unsigned gpio)
{
if (gpio < 11)
return IRQ_GPIO0 + gpio;
else
return IRQ_GPIO11 - 11 + gpio;
}
static inline unsigned irq_to_gpio(unsigned irq)
{
if (irq < IRQ_GPIO11_27)
return irq - IRQ_GPIO0;
else
return irq - IRQ_GPIO11 + 11;
}
#define gpio_to_irq(gpio) ((gpio < 11) ? (IRQ_GPIO0 + gpio) : \
(IRQ_GPIO11 - 11 + gpio))
#define irq_to_gpio(irq) ((irq < IRQ_GPIO11_27) ? (irq - IRQ_GPIO0) : \
(irq - IRQ_GPIO11 + 11))
#endif

1
arch/arm/mach-sa1100/include/mach/mcp.h
View File

@ -16,6 +16,7 @@ struct mcp_plat_data {
u32 mccr0;
u32 mccr1;
unsigned int sclk_rate;
int gpio_base;
};
#endif

2
drivers/leds/leds-locomo.c
View File

@ -44,7 +44,7 @@ static void locomoled_brightness_set1(struct led_classdev *led_cdev,
static struct led_classdev locomo_led0 = {
.name = "locomo:amber:charge",
.default_trigger = "sharpsl-charge",
.default_trigger = "main-battery-charging",
.brightness_set = locomoled_brightness_set0,
};

2
drivers/mfd/mcp-core.c
View File

@ -17,11 +17,11 @@
#include <linux/device.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/mfd/mcp.h>
#include <mach/dma.h>
#include <asm/system.h>
#include "mcp.h"
#define to_mcp(d) container_of(d, struct mcp, attached_device)
#define to_mcp_driver(d) container_of(d, struct mcp_driver, drv)

3
drivers/mfd/mcp-sa11x0.c
View File

@ -19,6 +19,7 @@
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/mfd/mcp.h>
#include <mach/dma.h>
#include <mach/hardware.h>
@ -28,7 +29,6 @@
#include <mach/assabet.h>
#include "mcp.h"
struct mcp_sa11x0 {
u32 mccr0;
@ -163,6 +163,7 @@ static int mcp_sa11x0_probe(struct platform_device *pdev)
mcp->dma_audio_wr = DMA_Ser4MCP0Wr;
mcp->dma_telco_rd = DMA_Ser4MCP1Rd;
mcp->dma_telco_wr = DMA_Ser4MCP1Wr;
mcp->gpio_base = data->gpio_base;
platform_set_drvdata(pdev, mcp);

2
drivers/mfd/ucb1x00-assabet.c
View File

@ -14,10 +14,10 @@
#include <linux/fs.h>
#include <linux/proc_fs.h>
#include <linux/device.h>
#include <linux/mfd/ucb1x00.h>
#include <mach/dma.h>
#include "ucb1x00.h"
#define UCB1X00_ATTR(name,input)\
static ssize_t name##_show(struct device *dev, struct device_attribute *attr, \

89
drivers/mfd/ucb1x00-core.c
View File

@ -25,12 +25,12 @@
#include <linux/interrupt.h>
#include <linux/device.h>
#include <linux/mutex.h>
#include <linux/mfd/ucb1x00.h>
#include <linux/gpio.h>
#include <mach/dma.h>
#include <mach/hardware.h>
#include "ucb1x00.h"
static DEFINE_MUTEX(ucb1x00_mutex);
static LIST_HEAD(ucb1x00_drivers);
static LIST_HEAD(ucb1x00_devices);
@ -108,6 +108,60 @@ unsigned int ucb1x00_io_read(struct ucb1x00 *ucb)
return ucb1x00_reg_read(ucb, UCB_IO_DATA);
}
static void ucb1x00_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
unsigned long flags;
spin_lock_irqsave(&ucb->io_lock, flags);
if (value)
ucb->io_out |= 1 << offset;
else
ucb->io_out &= ~(1 << offset);
ucb1x00_reg_write(ucb, UCB_IO_DATA, ucb->io_out);
spin_unlock_irqrestore(&ucb->io_lock, flags);
}
static int ucb1x00_gpio_get(struct gpio_chip *chip, unsigned offset)
{
struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
return ucb1x00_reg_read(ucb, UCB_IO_DATA) & (1 << offset);
}
static int ucb1x00_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
{
struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
unsigned long flags;
spin_lock_irqsave(&ucb->io_lock, flags);
ucb->io_dir &= ~(1 << offset);
ucb1x00_reg_write(ucb, UCB_IO_DIR, ucb->io_dir);
spin_unlock_irqrestore(&ucb->io_lock, flags);
return 0;
}
static int ucb1x00_gpio_direction_output(struct gpio_chip *chip, unsigned offset
, int value)
{
struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
unsigned long flags;
spin_lock_irqsave(&ucb->io_lock, flags);
ucb->io_dir |= (1 << offset);
ucb1x00_reg_write(ucb, UCB_IO_DIR, ucb->io_dir);
if (value)
ucb->io_out |= 1 << offset;
else
ucb->io_out &= ~(1 << offset);
ucb1x00_reg_write(ucb, UCB_IO_DATA, ucb->io_out);
spin_unlock_irqrestore(&ucb->io_lock, flags);
return 0;
}
/*
* UCB1300 data sheet says we must:
* 1. enable ADC => 5us (including reference startup time)
@ -476,6 +530,7 @@ static int ucb1x00_probe(struct mcp *mcp)
struct ucb1x00_driver *drv;
unsigned int id;
int ret = -ENODEV;
int temp;
mcp_enable(mcp);
id = mcp_reg_read(mcp, UCB_ID);
@ -508,12 +563,27 @@ static int ucb1x00_probe(struct mcp *mcp)
goto err_free;
}
ucb->gpio.base = -1;
if (mcp->gpio_base != 0) {
ucb->gpio.label = dev_name(&ucb->dev);
ucb->gpio.base = mcp->gpio_base;
ucb->gpio.ngpio = 10;
ucb->gpio.set = ucb1x00_gpio_set;
ucb->gpio.get = ucb1x00_gpio_get;
ucb->gpio.direction_input = ucb1x00_gpio_direction_input;
ucb->gpio.direction_output = ucb1x00_gpio_direction_output;
ret = gpiochip_add(&ucb->gpio);
if (ret)
goto err_free;
} else
dev_info(&ucb->dev, "gpio_base not set so no gpiolib support");
ret = request_irq(ucb->irq, ucb1x00_irq, IRQF_TRIGGER_RISING,
"UCB1x00", ucb);
if (ret) {
printk(KERN_ERR "ucb1x00: unable to grab irq%d: %d\n",
ucb->irq, ret);
goto err_free;
goto err_gpio;
}
mcp_set_drvdata(mcp, ucb);
@ -522,6 +592,7 @@ static int ucb1x00_probe(struct mcp *mcp)
if (ret)
goto err_irq;
INIT_LIST_HEAD(&ucb->devs);
mutex_lock(&ucb1x00_mutex);
list_add(&ucb->node, &ucb1x00_devices);
@ -529,10 +600,14 @@ static int ucb1x00_probe(struct mcp *mcp)
ucb1x00_add_dev(ucb, drv);
}
mutex_unlock(&ucb1x00_mutex);
goto out;
err_irq:
free_irq(ucb->irq, ucb);
err_gpio:
if (ucb->gpio.base != -1)
temp = gpiochip_remove(&ucb->gpio);
err_free:
kfree(ucb);
err_disable:
@ -545,6 +620,7 @@ static void ucb1x00_remove(struct mcp *mcp)
{
struct ucb1x00 *ucb = mcp_get_drvdata(mcp);
struct list_head *l, *n;
int ret;
mutex_lock(&ucb1x00_mutex);
list_del(&ucb->node);
@ -554,6 +630,12 @@ static void ucb1x00_remove(struct mcp *mcp)
}
mutex_unlock(&ucb1x00_mutex);
if (ucb->gpio.base != -1) {
ret = gpiochip_remove(&ucb->gpio);
if (ret)
dev_err(&ucb->dev, "Can't remove gpio chip: %d\n", ret);
}
free_irq(ucb->irq, ucb);
device_unregister(&ucb->dev);
}
@ -604,6 +686,7 @@ static int ucb1x00_resume(struct mcp *mcp)
struct ucb1x00 *ucb = mcp_get_drvdata(mcp);
struct ucb1x00_dev *dev;
ucb1x00_reg_write(ucb, UCB_IO_DIR, ucb->io_dir);
mutex_lock(&ucb1x00_mutex);
list_for_each_entry(dev, &ucb->devs, dev_node) {
if (dev->drv->resume)

2
drivers/mfd/ucb1x00-ts.c
View File

@ -30,12 +30,12 @@
#include <linux/freezer.h>
#include <linux/slab.h>
#include <linux/kthread.h>
#include <linux/mfd/ucb1x00.h>
#include <mach/dma.h>
#include <mach/collie.h>
#include <asm/mach-types.h>
#include "ucb1x00.h"
struct ucb1x00_ts {

7
drivers/power/Kconfig
View File

@ -77,6 +77,13 @@ config BATTERY_TOSA
Say Y to enable support for the battery on the Sharp Zaurus
SL-6000 (tosa) models.
config BATTERY_COLLIE
tristate "Sharp SL-5500 (collie) battery"
depends on SA1100_COLLIE && MCP_UCB1200
help
Say Y to enable support for the battery on the Sharp Zaurus
SL-5500 (collie) models.
config BATTERY_WM97XX
bool "WM97xx generic battery driver"
depends on TOUCHSCREEN_WM97XX=y

1
drivers/power/Makefile
View File

@ -24,6 +24,7 @@ obj-$(CONFIG_BATTERY_DS2782) += ds2782_battery.o
obj-$(CONFIG_BATTERY_PMU) += pmu_battery.o
obj-$(CONFIG_BATTERY_OLPC) += olpc_battery.o
obj-$(CONFIG_BATTERY_TOSA) += tosa_battery.o
obj-$(CONFIG_BATTERY_COLLIE) += collie_battery.o
obj-$(CONFIG_BATTERY_WM97XX) += wm97xx_battery.o
obj-$(CONFIG_BATTERY_BQ27x00) += bq27x00_battery.o
obj-$(CONFIG_BATTERY_DA9030) += da9030_battery.o

418
drivers/power/collie_battery.c Normal file
View File

@ -0,0 +1,418 @@
/*
* Battery and Power Management code for the Sharp SL-5x00
*
* Copyright (C) 2009 Thomas Kunze
*
* based on tosa_battery.c
*
* 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 <linux/kernel.h>
#include <linux/module.h>
#include <linux/power_supply.h>
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/gpio.h>
#include <linux/mfd/ucb1x00.h>
#include <asm/mach/sharpsl_param.h>
#include <asm/mach-types.h>
#include <mach/collie.h>
static DEFINE_MUTEX(bat_lock); /* protects gpio pins */
static struct work_struct bat_work;
static struct ucb1x00 *ucb;
struct collie_bat {
int status;
struct power_supply psy;
int full_chrg;
struct mutex work_lock; /* protects data */
bool (*is_present)(struct collie_bat *bat);
int gpio_full;
int gpio_charge_on;
int technology;
int gpio_bat;
int adc_bat;
int adc_bat_divider;
int bat_max;
int bat_min;
int gpio_temp;
int adc_temp;
int adc_temp_divider;
};
static struct collie_bat collie_bat_main;
static unsigned long collie_read_bat(struct collie_bat *bat)
{
unsigned long value = 0;
if (bat->gpio_bat < 0 || bat->adc_bat < 0)
return 0;
mutex_lock(&bat_lock);
gpio_set_value(bat->gpio_bat, 1);
msleep(5);
ucb1x00_adc_enable(ucb);
value = ucb1x00_adc_read(ucb, bat->adc_bat, UCB_SYNC);
ucb1x00_adc_disable(ucb);
gpio_set_value(bat->gpio_bat, 0);
mutex_unlock(&bat_lock);
value = value * 1000000 / bat->adc_bat_divider;
return value;
}
static unsigned long collie_read_temp(struct collie_bat *bat)
{
unsigned long value = 0;
if (bat->gpio_temp < 0 || bat->adc_temp < 0)
return 0;
mutex_lock(&bat_lock);
gpio_set_value(bat->gpio_temp, 1);
msleep(5);
ucb1x00_adc_enable(ucb);
value = ucb1x00_adc_read(ucb, bat->adc_temp, UCB_SYNC);
ucb1x00_adc_disable(ucb);
gpio_set_value(bat->gpio_temp, 0);
mutex_unlock(&bat_lock);
value = value * 10000 / bat->adc_temp_divider;
return value;
}
static int collie_bat_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
int ret = 0;
struct collie_bat *bat = container_of(psy, struct collie_bat, psy);
if (bat->is_present && !bat->is_present(bat)
&& psp != POWER_SUPPLY_PROP_PRESENT) {
return -ENODEV;
}
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
val->intval = bat->status;
break;
case POWER_SUPPLY_PROP_TECHNOLOGY:
val->intval = bat->technology;
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
val->intval = collie_read_bat(bat);
break;
case POWER_SUPPLY_PROP_VOLTAGE_MAX:
if (bat->full_chrg == -1)
val->intval = bat->bat_max;
else
val->intval = bat->full_chrg;
break;
case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
val->intval = bat->bat_max;
break;
case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
val->intval = bat->bat_min;
break;
case POWER_SUPPLY_PROP_TEMP:
val->intval = collie_read_temp(bat);
break;
case POWER_SUPPLY_PROP_PRESENT:
val->intval = bat->is_present ? bat->is_present(bat) : 1;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static void collie_bat_external_power_changed(struct power_supply *psy)
{
schedule_work(&bat_work);
}
static irqreturn_t collie_bat_gpio_isr(int irq, void *data)
{
pr_info("collie_bat_gpio irq: %d\n", gpio_get_value(irq_to_gpio(irq)));
schedule_work(&bat_work);
return IRQ_HANDLED;
}
static void collie_bat_update(struct collie_bat *bat)
{
int old;
struct power_supply *psy = &bat->psy;
mutex_lock(&bat->work_lock);
old = bat->status;
if (bat->is_present && !bat->is_present(bat)) {
printk(KERN_NOTICE "%s not present\n", psy->name);
bat->status = POWER_SUPPLY_STATUS_UNKNOWN;
bat->full_chrg = -1;
} else if (power_supply_am_i_supplied(psy)) {
if (bat->status == POWER_SUPPLY_STATUS_DISCHARGING) {
gpio_set_value(bat->gpio_charge_on, 1);
mdelay(15);
}
if (gpio_get_value(bat->gpio_full)) {
if (old == POWER_SUPPLY_STATUS_CHARGING ||
bat->full_chrg == -1)
bat->full_chrg = collie_read_bat(bat);
gpio_set_value(bat->gpio_charge_on, 0);
bat->status = POWER_SUPPLY_STATUS_FULL;
} else {
gpio_set_value(bat->gpio_charge_on, 1);
bat->status = POWER_SUPPLY_STATUS_CHARGING;
}
} else {
gpio_set_value(bat->gpio_charge_on, 0);
bat->status = POWER_SUPPLY_STATUS_DISCHARGING;
}
if (old != bat->status)
power_supply_changed(psy);
mutex_unlock(&bat->work_lock);
}
static void collie_bat_work(struct work_struct *work)
{
collie_bat_update(&collie_bat_main);
}
static enum power_supply_property collie_bat_main_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_MAX,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_TEMP,
};
static enum power_supply_property collie_bat_bu_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_MAX,
POWER_SUPPLY_PROP_PRESENT,
};
static struct collie_bat collie_bat_main = {
.status = POWER_SUPPLY_STATUS_DISCHARGING,
.full_chrg = -1,
.psy = {
.name = "main-battery",
.type = POWER_SUPPLY_TYPE_BATTERY,
.properties = collie_bat_main_props,
.num_properties = ARRAY_SIZE(collie_bat_main_props),
.get_property = collie_bat_get_property,
.external_power_changed = collie_bat_external_power_changed,
.use_for_apm = 1,
},
.gpio_full = COLLIE_GPIO_CO,
.gpio_charge_on = COLLIE_GPIO_CHARGE_ON,
.technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
.gpio_bat = COLLIE_GPIO_MBAT_ON,
.adc_bat = UCB_ADC_INP_AD1,
.adc_bat_divider = 155,
.bat_max = 4310000,
.bat_min = 1551 * 1000000 / 414,
.gpio_temp = COLLIE_GPIO_TMP_ON,
.adc_temp = UCB_ADC_INP_AD0,
.adc_temp_divider = 10000,
};
static struct collie_bat collie_bat_bu = {
.status = POWER_SUPPLY_STATUS_UNKNOWN,
.full_chrg = -1,
.psy = {
.name = "backup-battery",
.type = POWER_SUPPLY_TYPE_BATTERY,
.properties = collie_bat_bu_props,
.num_properties = ARRAY_SIZE(collie_bat_bu_props),
.get_property = collie_bat_get_property,
.external_power_changed = collie_bat_external_power_changed,
},
.gpio_full = -1,
.gpio_charge_on = -1,
.technology = POWER_SUPPLY_TECHNOLOGY_LiMn,
.gpio_bat = COLLIE_GPIO_BBAT_ON,
.adc_bat = UCB_ADC_INP_AD1,
.adc_bat_divider = 155,
.bat_max = 3000000,
.bat_min = 1900000,
.gpio_temp = -1,
.adc_temp = -1,
.adc_temp_divider = -1,
};
static struct {
int gpio;
char *name;
bool output;
int value;
} gpios[] = {
{ COLLIE_GPIO_CO, "main battery full", 0, 0 },
{ COLLIE_GPIO_MAIN_BAT_LOW, "main battery low", 0, 0 },
{ COLLIE_GPIO_CHARGE_ON, "main charge on", 1, 0 },
{ COLLIE_GPIO_MBAT_ON, "main battery", 1, 0 },
{ COLLIE_GPIO_TMP_ON, "main battery temp", 1, 0 },
{ COLLIE_GPIO_BBAT_ON, "backup battery", 1, 0 },
};
#ifdef CONFIG_PM
static int collie_bat_suspend(struct ucb1x00_dev *dev, pm_message_t state)
{
/* flush all pending status updates */
flush_scheduled_work();
return 0;
}
static int collie_bat_resume(struct ucb1x00_dev *dev)
{
/* things may have changed while we were away */
schedule_work(&bat_work);
return 0;
}
#else
#define collie_bat_suspend NULL
#define collie_bat_resume NULL
#endif
static int __devinit collie_bat_probe(struct ucb1x00_dev *dev)
{
int ret;
int i;
if (!machine_is_collie())
return -ENODEV;
ucb = dev->ucb;
for (i = 0; i < ARRAY_SIZE(gpios); i++) {
ret = gpio_request(gpios[i].gpio, gpios[i].name);
if (ret) {
i--;
goto err_gpio;
}
if (gpios[i].output)
ret = gpio_direction_output(gpios[i].gpio,
gpios[i].value);
else
ret = gpio_direction_input(gpios[i].gpio);
if (ret)
goto err_gpio;
}
mutex_init(&collie_bat_main.work_lock);
INIT_WORK(&bat_work, collie_bat_work);
ret = power_supply_register(&dev->ucb->dev, &collie_bat_main.psy);
if (ret)
goto err_psy_reg_main;
ret = power_supply_register(&dev->ucb->dev, &collie_bat_bu.psy);
if (ret)
goto err_psy_reg_bu;
ret = request_irq(gpio_to_irq(COLLIE_GPIO_CO),
collie_bat_gpio_isr,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"main full", &collie_bat_main);
if (!ret) {
schedule_work(&bat_work);
return 0;
}
power_supply_unregister(&collie_bat_bu.psy);
err_psy_reg_bu:
power_supply_unregister(&collie_bat_main.psy);
err_psy_reg_main:
/* see comment in collie_bat_remove */
flush_scheduled_work();
i--;
err_gpio:
for (; i >= 0; i--)
gpio_free(gpios[i].gpio);
return ret;
}
static void __devexit collie_bat_remove(struct ucb1x00_dev *dev)
{
int i;
free_irq(gpio_to_irq(COLLIE_GPIO_CO), &collie_bat_main);
power_supply_unregister(&collie_bat_bu.psy);
power_supply_unregister(&collie_bat_main.psy);
/*
* now flush all pending work.
* we won't get any more schedules, since all
* sources (isr and external_power_changed)
* are unregistered now.
*/
flush_scheduled_work();
for (i = ARRAY_SIZE(gpios) - 1; i >= 0; i--)
gpio_free(gpios[i].gpio);
}
static struct ucb1x00_driver collie_bat_driver = {
.add = collie_bat_probe,
.remove = __devexit_p(collie_bat_remove),
.suspend = collie_bat_suspend,
.resume = collie_bat_resume,
};
static int __init collie_bat_init(void)
{
return ucb1x00_register_driver(&collie_bat_driver);
}
static void __exit collie_bat_exit(void)
{
ucb1x00_unregister_driver(&collie_bat_driver);
}
module_init(collie_bat_init);
module_exit(collie_bat_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Thomas Kunze");
MODULE_DESCRIPTION("Collie battery driver");

3
drivers/mfd/mcp.h → include/linux/mfd/mcp.h
View File

@ -10,6 +10,8 @@
#ifndef MCP_H
#define MCP_H
#include <mach/dma.h>
struct mcp_ops;
struct mcp {
@ -24,6 +26,7 @@ struct mcp {
dma_device_t dma_telco_rd;
dma_device_t dma_telco_wr;
struct device attached_device;
int gpio_base;
};
struct mcp_ops {

7
drivers/mfd/ucb1x00.h → include/linux/mfd/ucb1x00.h
View File

@ -1,5 +1,5 @@
/*
* linux/drivers/mfd/ucb1x00.h
* linux/include/mfd/ucb1x00.h
*
* Copyright (C) 2001 Russell King, All Rights Reserved.
*
@ -10,6 +10,9 @@
#ifndef UCB1200_H
#define UCB1200_H
#include <linux/mfd/mcp.h>
#include <linux/gpio.h>
#define UCB_IO_DATA 0x00
#define UCB_IO_DIR 0x01
@ -100,7 +103,6 @@
#define UCB_MODE_DYN_VFLAG_ENA (1 << 12)
#define UCB_MODE_AUD_OFF_CAN (1 << 13)
#include "mcp.h"
struct ucb1x00_irq {
void *devid;
@ -123,6 +125,7 @@ struct ucb1x00 {
struct device dev;
struct list_head node;
struct list_head devs;
struct gpio_chip gpio;
};
struct ucb1x00_driver;