diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-sa1100/collie.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/collie.c b/arch/arm/mach-sa1100/collie.c index 395cf09b28b..fdab9d929e8 100644 --- a/arch/arm/mach-sa1100/collie.c +++ b/arch/arm/mach-sa1100/collie.c @@ -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> @@ -89,6 +90,69 @@ static struct mcp_plat_data collie_mcp_data = { .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 /* * low-level UART features. @@ -180,6 +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[] = { |