collie: support pda_power driver
Thomas Kunze [Tue, 10 Feb 2009 12:48:32 +0000 (13:48 +0100)]
This add the pda-power platform device to collie.

arch/arm/mach-sa1100/collie.c

index 395cf09..fdab9d9 100644 (file)
@@ -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[] = {