[PATCH 2/2] ARM: S3C64XX: Support GPIO LEDs on Cragganmore

[Mark Brown]

Cragganmore has a bank of 8 LEDs connected to the memory mapped GPIO
bank, mostly intended for low level diagnostics. Register these with
the LED subsystem for runtime use.

Signed-off-by: Mark Brown <broonie at opensource.wolfsonmicro.com>
---
 arch/arm/mach-s3c64xx/Kconfig         |    1 +
 arch/arm/mach-s3c64xx/mach-crag6410.c |   51 +++++++++++++++++++++++++++++++++
 2 files changed, 52 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
index dd20c66..dc45123 100644
--- a/arch/arm/mach-s3c64xx/Kconfig
+++ b/arch/arm/mach-s3c64xx/Kconfig
@@ -296,5 +296,6 @@ config MACH_WLF_CRAGG_6410
 	select S3C64XX_DEV_SPI0
 	select SAMSUNG_GPIO_EXTRA128
 	select I2C
+	select LEDS_GPIO_REGISTER
 	help
 	  Machine support for the Wolfson Cragganmore S3C6410 variant.
diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c
index d0308f0..139d16e 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -19,6 +19,7 @@
 #include <linux/io.h>
 #include <linux/init.h>
 #include <linux/gpio.h>
+#include <linux/leds.h>
 #include <linux/delay.h>
 #include <linux/mmc/host.h>
 #include <linux/regulator/machine.h>
@@ -710,6 +711,54 @@ static struct s3c_sdhci_platdata crag6410_hsmmc0_pdata = {
 	.host_caps		= MMC_CAP_POWER_OFF_CARD,
 };
 
+static const struct gpio_led gpio_leds[] = {
+	{
+		.name = "d13:green:",
+		.gpio = MMGPIO_GPIO_BASE + 0,
+		.default_state = LEDS_GPIO_DEFSTATE_ON,
+	},
+	{
+		.name = "d14:green:",
+		.gpio = MMGPIO_GPIO_BASE + 1,
+		.default_state = LEDS_GPIO_DEFSTATE_ON,
+	},
+	{
+		.name = "d15:green:",
+		.gpio = MMGPIO_GPIO_BASE + 2,
+		.default_state = LEDS_GPIO_DEFSTATE_ON,
+	},
+	{
+		.name = "d16:green:",
+		.gpio = MMGPIO_GPIO_BASE + 3,
+		.default_state = LEDS_GPIO_DEFSTATE_ON,
+	},
+	{
+		.name = "d17:green:",
+		.gpio = MMGPIO_GPIO_BASE + 4,
+		.default_state = LEDS_GPIO_DEFSTATE_ON,
+	},
+	{
+		.name = "d18:green:",
+		.gpio = MMGPIO_GPIO_BASE + 5,
+		.default_state = LEDS_GPIO_DEFSTATE_ON,
+	},
+	{
+		.name = "d19:green:",
+		.gpio = MMGPIO_GPIO_BASE + 6,
+		.default_state = LEDS_GPIO_DEFSTATE_ON,
+	},
+	{
+		.name = "d20:green:",
+		.gpio = MMGPIO_GPIO_BASE + 7,
+		.default_state = LEDS_GPIO_DEFSTATE_ON,
+	},
+};
+
+static const struct gpio_led_platform_data gpio_leds_pdata = {
+	.leds = gpio_leds,
+	.num_leds = ARRAY_SIZE(gpio_leds),
+};
+
 static void __init crag6410_machine_init(void)
 {
 	/* Open drain IRQs need pullups */
@@ -743,6 +792,8 @@ static void __init crag6410_machine_init(void)
 
 	platform_add_devices(crag6410_devices, ARRAY_SIZE(crag6410_devices));
 
+	gpio_led_register_device(-1, &gpio_leds_pdata);
+
 	regulator_has_full_constraints();
 
 	s3c64xx_pm_init();
-- 
1.7.7.3