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Commit ecab01d4 authored by Vasily Khoruzhick's avatar Vasily Khoruzhick Committed by Ben Dooks
Browse files

ARM: rx1950: Add battery device 



This patch adds registration of appropriate device for
s3c-adc-battery driver, so battery monitoring and charging are
available on RX1950 PDA now.

Signed-off-by: default avatarVasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
parent 56162bad

arch/arm/mach-s3c2440/mach-rx1950.c

+160 −0
Original line number Original line Diff line number Diff line
@@ -25,8 +25,10 @@ 
#include <linux/input.h>

#include <linux/input.h>

#include <linux/gpio_keys.h>

#include <linux/gpio_keys.h>

#include <linux/sysdev.h>

#include <linux/sysdev.h>

#include <linux/pda_power.h>

#include <linux/pwm_backlight.h>

#include <linux/pwm_backlight.h>

#include <linux/pwm.h>

#include <linux/pwm.h>

#include <linux/s3c_adc_battery.h>





#include <linux/mtd/mtd.h>

#include <linux/mtd/mtd.h>

#include <linux/mtd/partitions.h>

#include <linux/mtd/partitions.h>
@@ -127,6 +129,162 @@ static struct s3c2410fb_display rx1950_display = { 




};

};





static int power_supply_init(struct device *dev)

{

	return gpio_request(S3C2410_GPF(2), "cable plugged");

}



static int rx1950_is_ac_online(void)

{

	return !gpio_get_value(S3C2410_GPF(2));

}



static void power_supply_exit(struct device *dev)

{

	gpio_free(S3C2410_GPF(2));

}



static char *rx1950_supplicants[] = {

	"main-battery"

};



static struct pda_power_pdata power_supply_info = {

	.init			= power_supply_init,

	.is_ac_online		= rx1950_is_ac_online,

	.exit			= power_supply_exit,

	.supplied_to		= rx1950_supplicants,

	.num_supplicants	= ARRAY_SIZE(rx1950_supplicants),

};



static struct resource power_supply_resources[] = {

	[0] = {

			.name	= "ac",

			.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE |

					  IORESOURCE_IRQ_HIGHEDGE,

			.start	= IRQ_EINT2,

			.end	= IRQ_EINT2,

	},

};



static struct platform_device power_supply = {

	.name			= "pda-power",

	.id			= -1,

	.dev			= {

					.platform_data =

						&power_supply_info,

	},

	.resource		= power_supply_resources,

	.num_resources		= ARRAY_SIZE(power_supply_resources),

};



static const struct s3c_adc_bat_thresh bat_lut_noac[] = {

	{ .volt = 4100, .cur = 156, .level = 100},

	{ .volt = 4050, .cur = 156, .level = 95},

	{ .volt = 4025, .cur = 141, .level = 90},

	{ .volt = 3995, .cur = 144, .level = 85},

	{ .volt = 3957, .cur = 162, .level = 80},

	{ .volt = 3931, .cur = 147, .level = 75},

	{ .volt = 3902, .cur = 147, .level = 70},

	{ .volt = 3863, .cur = 153, .level = 65},

	{ .volt = 3838, .cur = 150, .level = 60},

	{ .volt = 3800, .cur = 153, .level = 55},

	{ .volt = 3765, .cur = 153, .level = 50},

	{ .volt = 3748, .cur = 172, .level = 45},

	{ .volt = 3740, .cur = 153, .level = 40},

	{ .volt = 3714, .cur = 175, .level = 35},

	{ .volt = 3710, .cur = 156, .level = 30},

	{ .volt = 3963, .cur = 156, .level = 25},

	{ .volt = 3672, .cur = 178, .level = 20},

	{ .volt = 3651, .cur = 178, .level = 15},

	{ .volt = 3629, .cur = 178, .level = 10},

	{ .volt = 3612, .cur = 162, .level = 5},

	{ .volt = 3605, .cur = 162, .level = 0},

};



static const struct s3c_adc_bat_thresh bat_lut_acin[] = {

	{ .volt = 4200, .cur = 0, .level = 100},

	{ .volt = 4190, .cur = 0, .level = 99},

	{ .volt = 4178, .cur = 0, .level = 95},

	{ .volt = 4110, .cur = 0, .level = 70},

	{ .volt = 4076, .cur = 0, .level = 65},

	{ .volt = 4046, .cur = 0, .level = 60},

	{ .volt = 4021, .cur = 0, .level = 55},

	{ .volt = 3999, .cur = 0, .level = 50},

	{ .volt = 3982, .cur = 0, .level = 45},

	{ .volt = 3965, .cur = 0, .level = 40},

	{ .volt = 3957, .cur = 0, .level = 35},

	{ .volt = 3948, .cur = 0, .level = 30},

	{ .volt = 3936, .cur = 0, .level = 25},

	{ .volt = 3927, .cur = 0, .level = 20},

	{ .volt = 3906, .cur = 0, .level = 15},

	{ .volt = 3880, .cur = 0, .level = 10},

	{ .volt = 3829, .cur = 0, .level = 5},

	{ .volt = 3820, .cur = 0, .level = 0},

};



int rx1950_bat_init(void)

{

	int ret;



	ret = gpio_request(S3C2410_GPJ(2), "rx1950-charger-enable-1");

	if (ret)

		goto err_gpio1;

	ret = gpio_request(S3C2410_GPJ(3), "rx1950-charger-enable-2");

	if (ret)

		goto err_gpio2;



	return 0;



err_gpio2:

	gpio_free(S3C2410_GPJ(2));

err_gpio1:

	return ret;

}



void rx1950_bat_exit(void)

{

	gpio_free(S3C2410_GPJ(2));

	gpio_free(S3C2410_GPJ(3));

}



void rx1950_enable_charger(void)

{

	gpio_direction_output(S3C2410_GPJ(2), 1);

	gpio_direction_output(S3C2410_GPJ(3), 1);

}



void rx1950_disable_charger(void)

{

	gpio_direction_output(S3C2410_GPJ(2), 0);

	gpio_direction_output(S3C2410_GPJ(3), 0);

}



static struct s3c_adc_bat_pdata rx1950_bat_cfg = {

	.init = rx1950_bat_init,

	.exit = rx1950_bat_exit,

	.enable_charger = rx1950_enable_charger,

	.disable_charger = rx1950_disable_charger,

	.gpio_charge_finished = S3C2410_GPF(3),

	.lut_noac = bat_lut_noac,

	.lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),

	.lut_acin = bat_lut_acin,

	.lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),

	.volt_channel = 0,

	.current_channel = 1,

	.volt_mult = 4235,

	.current_mult = 2900,

	.internal_impedance = 200,

};



static struct platform_device rx1950_battery = {

	.name             = "s3c-adc-battery",

	.id               = -1,

	.dev = {

		.parent = &s3c_device_adc.dev,

		.platform_data = &rx1950_bat_cfg,

	},

};



static struct s3c2410fb_mach_info rx1950_lcd_cfg = {

static struct s3c2410fb_mach_info rx1950_lcd_cfg = {

	.displays = &rx1950_display,

	.displays = &rx1950_display,

	.num_displays = 1,

	.num_displays = 1,
@@ -503,6 +661,8 @@ static struct platform_device *rx1950_devices[] __initdata = { 
	&s3c_device_timer[1],

	&s3c_device_timer[1],

	&rx1950_backlight,

	&rx1950_backlight,

	&rx1950_device_gpiokeys,

	&rx1950_device_gpiokeys,

	&power_supply,

	&rx1950_battery,

};

};





static struct clk *rx1950_clocks[] __initdata = {

static struct clk *rx1950_clocks[] __initdata = {