[ARM] 4951/1: magician: enable external power supply (pda_power) driver

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 59 insertions, 1 deletions

diff --git a/arch/arm/configs/magician_defconfig b/arch/arm/configs/magician_defconfig
index b35958b50c65..69ac0e4f1fe8 100644
--- a/arch/arm/configs/magician_defconfig
+++ b/arch/arm/configs/magician_defconfig
@@ -695,7 +695,11 @@ CONFIG_I2C_PXA=m
 # CONFIG_SPI is not set
 # CONFIG_SPI_MASTER is not set
 # CONFIG_W1 is not set
-# CONFIG_POWER_SUPPLY is not set
+CONFIG_POWER_SUPPLY=y
+# CONFIG_POWER_SUPPLY_DEBUG is not set
+CONFIG_PDA_POWER=y
+# CONFIG_APM_POWER is not set
+# CONFIG_BATTERY_DS2760 is not set
 # CONFIG_HWMON is not set
 # CONFIG_WATCHDOG is not set
 
diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c
index a931c384d49d..d152a086e734 100644
--- a/arch/arm/mach-pxa/magician.c
+++ b/arch/arm/mach-pxa/magician.c
@@ -22,6 +22,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/physmap.h>
+#include <linux/pda_power.h>
 
 #include <asm/gpio.h>
 #include <asm/hardware.h>
@@ -203,6 +204,58 @@ static struct platform_device backlight = {
 
 
 /*
+ * External power
+ */
+
+static int magician_is_ac_online(void)
+{
+        return gpio_get_value(EGPIO_MAGICIAN_CABLE_STATE_AC);
+}
+
+static int magician_is_usb_online(void)
+{
+        return gpio_get_value(EGPIO_MAGICIAN_CABLE_STATE_USB);
+}
+
+static void magician_set_charge(int flags)
+{
+        gpio_set_value(GPIO30_MAGICIAN_nCHARGE_EN, !flags);
+        gpio_set_value(EGPIO_MAGICIAN_CHARGE_EN, flags);
+}
+
+static struct pda_power_pdata power_supply_info = {
+        .is_ac_online = magician_is_ac_online,
+        .is_usb_online = magician_is_usb_online,
+        .set_charge = magician_set_charge,
+};
+
+static struct resource power_supply_resources[] = {
+        [0] = {
+                .name  = "ac",
+                .flags = IORESOURCE_IRQ,
+                .start = IRQ_MAGICIAN_AC,
+                .end   = IRQ_MAGICIAN_AC,
+        },
+        [1] = {
+                .name  = "usb",
+                .flags = IORESOURCE_IRQ,
+                .start = IRQ_MAGICIAN_AC,
+                .end   = IRQ_MAGICIAN_AC,
+        },
+};
+
+static struct platform_device power_supply = {
+        .name = "pda-power",
+        .id   = -1,
+        .dev  = {
+                .platform_data = &power_supply_info,
+        },
+        .resource      = power_supply_resources,
+        .num_resources = ARRAY_SIZE(power_supply_resources),
+};
+
+
+/*
  * MMC/SD
  */
 
@@ -299,6 +352,7 @@ static struct platform_device *devices[] __initdata = {
         &gpio_keys,
         &egpio,
         &backlight,
+        &power_supply,
         &strataflash,
 };