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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>
This commit is contained in:
Mark Brown 2011-12-29 18:05:29 +09:00 committed by Kukjin Kim
parent 84207d83ad
commit 66211f98d6
2 changed files with 52 additions and 0 deletions
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1
arch/arm/mach-s3c64xx/Kconfig
View File

@ -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.

51
arch/arm/mach-s3c64xx/mach-crag6410.c
View File

@ -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();