From 350d115d1eaa29e64324847badf27c93159ba8e0 Mon Sep 17 00:00:00 2001
From: Philipp Zabel <philipp.zabel@gmail.com>
Date: Wed, 9 Apr 2008 19:25:56 +0100
Subject: [PATCH] [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>
---
 arch/arm/configs/magician_defconfig |  6 +++-
 arch/arm/mach-pxa/magician.c        | 54 +++++++++++++++++++++++++++++
 2 files changed, 59 insertions(+), 1 deletion(-)

diff --git a/arch/arm/configs/magician_defconfig b/arch/arm/configs/magician_defconfig
index b35958b50c6..69ac0e4f1fe 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 a931c384d49..d152a086e73 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>
@@ -202,6 +203,58 @@ 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,
 };
 
-- 
2.20.1