collie: support pda_power driver

This add the pda-power platform device to collie.

1 files changed, 65 insertions, 0 deletions

diff --git a/arch/arm/mach-sa1100/collie.c b/arch/arm/mach-sa1100/collie.c
index 395cf09b28b4..fdab9d929e8e 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[] = {