ARM: S3C64XX: Support GPIO LEDs on Cragganmore

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@opensource.wolfsonmicro.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
index dd20c66..dc45123 100644 (file)
--- 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 8077f65..9da2d78 100644 (file)
--- 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/regulator/machine.h>
 #include <linux/regulator/fixed.h>
@@ -698,6 +699,54 @@ static struct s3c_sdhci_platdata crag6410_hsmmc0_pdata = {
        .cfg_gpio               = crag6410_cfg_sdhci0,
 };
 
+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 */
@@ -730,6 +779,8 @@ 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();