[ARM] 5099/1: Tosa: support AC-in detection.
Add support for ac-in via pda_power device.
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index 2fe0998..f3b12d2 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -27,6 +27,7 @@
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/gpio.h>
+#include <linux/pda_power.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
@@ -410,6 +411,70 @@
};
/*
+ * Tosa AC IN
+ */
+static int tosa_power_init(struct device *dev)
+{
+ int ret = gpio_request(TOSA_GPIO_AC_IN, "ac in");
+ if (ret)
+ goto err_gpio_req;
+
+ ret = gpio_direction_input(TOSA_GPIO_AC_IN);
+ if (ret)
+ goto err_gpio_in;
+
+ return 0;
+
+err_gpio_in:
+ gpio_free(TOSA_GPIO_AC_IN);
+err_gpio_req:
+ return ret;
+}
+
+static void tosa_power_exit(struct device *dev)
+{
+ gpio_free(TOSA_GPIO_AC_IN);
+}
+
+static int tosa_power_ac_online(void)
+{
+ return gpio_get_value(TOSA_GPIO_AC_IN) == 0;
+}
+
+static char *tosa_ac_supplied_to[] = {
+ "main-battery",
+ "backup-battery",
+ "jacket-battery",
+};
+
+static struct pda_power_pdata tosa_power_data = {
+ .init = tosa_power_init,
+ .is_ac_online = tosa_power_ac_online,
+ .exit = tosa_power_exit,
+ .supplied_to = tosa_ac_supplied_to,
+ .num_supplicants = ARRAY_SIZE(tosa_ac_supplied_to),
+};
+
+static struct resource tosa_power_resource[] = {
+ {
+ .name = "ac",
+ .start = gpio_to_irq(TOSA_GPIO_AC_IN),
+ .end = gpio_to_irq(TOSA_GPIO_AC_IN),
+ .flags = IORESOURCE_IRQ |
+ IORESOURCE_IRQ_HIGHEDGE |
+ IORESOURCE_IRQ_LOWEDGE,
+ },
+};
+
+static struct platform_device tosa_power_device = {
+ .name = "pda-power",
+ .id = -1,
+ .dev.platform_data = &tosa_power_data,
+ .resource = tosa_power_resource,
+ .num_resources = ARRAY_SIZE(tosa_power_resource),
+};
+
+/*
* Tosa Keyboard
*/
static struct platform_device tosakbd_device = {
@@ -633,6 +698,7 @@
&tosascoop_device,
&tosascoop_jc_device,
&tc6393xb_device,
+ &tosa_power_device,
&tosakbd_device,
&tosa_gpio_keys_device,
&tosaled_device,