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: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Vasily Khoruzhick
Ben Dooks
parent
56162badad
commit
ecab01d46c
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@ -25,8 +25,10 @@
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#include <linux/input.h>
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#include <linux/gpio_keys.h>
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#include <linux/sysdev.h>
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#include <linux/pda_power.h>
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#include <linux/pwm_backlight.h>
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#include <linux/pwm.h>
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#include <linux/s3c_adc_battery.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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@ -127,6 +129,162 @@ static struct s3c2410fb_display rx1950_display = {
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};
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static int power_supply_init(struct device *dev)
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{
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return gpio_request(S3C2410_GPF(2), "cable plugged");
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}
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static int rx1950_is_ac_online(void)
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{
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return !gpio_get_value(S3C2410_GPF(2));
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}
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static void power_supply_exit(struct device *dev)
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{
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gpio_free(S3C2410_GPF(2));
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}
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static char *rx1950_supplicants[] = {
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"main-battery"
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};
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static struct pda_power_pdata power_supply_info = {
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.init = power_supply_init,
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.is_ac_online = rx1950_is_ac_online,
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.exit = power_supply_exit,
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.supplied_to = rx1950_supplicants,
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.num_supplicants = ARRAY_SIZE(rx1950_supplicants),
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};
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static struct resource power_supply_resources[] = {
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[0] = {
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.name = "ac",
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE |
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IORESOURCE_IRQ_HIGHEDGE,
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.start = IRQ_EINT2,
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.end = IRQ_EINT2,
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},
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};
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static struct platform_device power_supply = {
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.name = "pda-power",
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.id = -1,
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.dev = {
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.platform_data =
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&power_supply_info,
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},
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.resource = power_supply_resources,
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.num_resources = ARRAY_SIZE(power_supply_resources),
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};
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static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
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{ .volt = 4100, .cur = 156, .level = 100},
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{ .volt = 4050, .cur = 156, .level = 95},
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{ .volt = 4025, .cur = 141, .level = 90},
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{ .volt = 3995, .cur = 144, .level = 85},
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{ .volt = 3957, .cur = 162, .level = 80},
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{ .volt = 3931, .cur = 147, .level = 75},
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{ .volt = 3902, .cur = 147, .level = 70},
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{ .volt = 3863, .cur = 153, .level = 65},
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{ .volt = 3838, .cur = 150, .level = 60},
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{ .volt = 3800, .cur = 153, .level = 55},
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{ .volt = 3765, .cur = 153, .level = 50},
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{ .volt = 3748, .cur = 172, .level = 45},
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{ .volt = 3740, .cur = 153, .level = 40},
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{ .volt = 3714, .cur = 175, .level = 35},
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{ .volt = 3710, .cur = 156, .level = 30},
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{ .volt = 3963, .cur = 156, .level = 25},
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{ .volt = 3672, .cur = 178, .level = 20},
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{ .volt = 3651, .cur = 178, .level = 15},
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{ .volt = 3629, .cur = 178, .level = 10},
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{ .volt = 3612, .cur = 162, .level = 5},
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{ .volt = 3605, .cur = 162, .level = 0},
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};
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static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
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{ .volt = 4200, .cur = 0, .level = 100},
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{ .volt = 4190, .cur = 0, .level = 99},
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{ .volt = 4178, .cur = 0, .level = 95},
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{ .volt = 4110, .cur = 0, .level = 70},
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{ .volt = 4076, .cur = 0, .level = 65},
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{ .volt = 4046, .cur = 0, .level = 60},
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{ .volt = 4021, .cur = 0, .level = 55},
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{ .volt = 3999, .cur = 0, .level = 50},
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{ .volt = 3982, .cur = 0, .level = 45},
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{ .volt = 3965, .cur = 0, .level = 40},
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{ .volt = 3957, .cur = 0, .level = 35},
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{ .volt = 3948, .cur = 0, .level = 30},
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{ .volt = 3936, .cur = 0, .level = 25},
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{ .volt = 3927, .cur = 0, .level = 20},
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{ .volt = 3906, .cur = 0, .level = 15},
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{ .volt = 3880, .cur = 0, .level = 10},
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{ .volt = 3829, .cur = 0, .level = 5},
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{ .volt = 3820, .cur = 0, .level = 0},
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};
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int rx1950_bat_init(void)
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{
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int ret;
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ret = gpio_request(S3C2410_GPJ(2), "rx1950-charger-enable-1");
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if (ret)
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goto err_gpio1;
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ret = gpio_request(S3C2410_GPJ(3), "rx1950-charger-enable-2");
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if (ret)
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goto err_gpio2;
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return 0;
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err_gpio2:
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gpio_free(S3C2410_GPJ(2));
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err_gpio1:
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return ret;
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}
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void rx1950_bat_exit(void)
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{
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gpio_free(S3C2410_GPJ(2));
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gpio_free(S3C2410_GPJ(3));
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}
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void rx1950_enable_charger(void)
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{
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gpio_direction_output(S3C2410_GPJ(2), 1);
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gpio_direction_output(S3C2410_GPJ(3), 1);
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}
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void rx1950_disable_charger(void)
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{
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gpio_direction_output(S3C2410_GPJ(2), 0);
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gpio_direction_output(S3C2410_GPJ(3), 0);
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}
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static struct s3c_adc_bat_pdata rx1950_bat_cfg = {
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.init = rx1950_bat_init,
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.exit = rx1950_bat_exit,
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.enable_charger = rx1950_enable_charger,
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.disable_charger = rx1950_disable_charger,
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.gpio_charge_finished = S3C2410_GPF(3),
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.lut_noac = bat_lut_noac,
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.lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
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.lut_acin = bat_lut_acin,
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.lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
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.volt_channel = 0,
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.current_channel = 1,
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.volt_mult = 4235,
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.current_mult = 2900,
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.internal_impedance = 200,
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};
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static struct platform_device rx1950_battery = {
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.name = "s3c-adc-battery",
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.id = -1,
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.dev = {
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.parent = &s3c_device_adc.dev,
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.platform_data = &rx1950_bat_cfg,
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},
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};
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static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
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.displays = &rx1950_display,
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.num_displays = 1,
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@ -503,6 +661,8 @@ static struct platform_device *rx1950_devices[] __initdata = {
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&s3c_device_timer[1],
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&rx1950_backlight,
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&rx1950_device_gpiokeys,
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&power_supply,
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&rx1950_battery,
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};
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static struct clk *rx1950_clocks[] __initdata = {
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