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authorVasily Khoruzhick <anarsoul@gmail.com>2011-01-06 21:52:48 +0200
committerBen Dooks <ben-linux@fluff.org>2011-03-20 23:14:55 +0000
commit50e2d10da82774e0733ab561c15c84cb92d9ab33 (patch)
tree95e2589290ce2e06372271286a9190d0f2896a40 /arch
parent4119242876d7d6ff539e1aa3d736a87a28fe7b67 (diff)
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ARM: S3C2410: H1940: Use leds-gpio driver for LEDs managing
We can use generic leds-gpio driver, as latch api was converted to gpiolib. Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-s3c2410/h1940-bluetooth.c8
-rw-r--r--arch/arm/mach-s3c2410/include/mach/h1940.h3
-rw-r--r--arch/arm/mach-s3c2410/mach-h1940.c93
3 files changed, 101 insertions, 3 deletions
diff --git a/arch/arm/mach-s3c2410/h1940-bluetooth.c b/arch/arm/mach-s3c2410/h1940-bluetooth.c
index 6c59ef5..2c126bb 100644
--- a/arch/arm/mach-s3c2410/h1940-bluetooth.c
+++ b/arch/arm/mach-s3c2410/h1940-bluetooth.c
@@ -18,12 +18,14 @@
#include <linux/leds.h>
#include <linux/gpio.h>
#include <linux/rfkill.h>
+#include <linux/leds.h>
#include <mach/regs-gpio.h>
#include <mach/hardware.h>
#include <mach/h1940-latch.h>
+#include <mach/h1940.h>
-#define DRV_NAME "h1940-bt"
+#define DRV_NAME "h1940-bt"
/* Bluetooth control */
static void h1940bt_enable(int on)
@@ -37,6 +39,8 @@ static void h1940bt_enable(int on)
gpio_set_value(S3C2410_GPH(1), 1);
mdelay(10);
gpio_set_value(S3C2410_GPH(1), 0);
+
+ h1940_led_blink_set(-EINVAL, GPIO_LED_BLINK, NULL, NULL);
}
else {
gpio_set_value(S3C2410_GPH(1), 1);
@@ -44,6 +48,8 @@ static void h1940bt_enable(int on)
gpio_set_value(S3C2410_GPH(1), 0);
mdelay(10);
gpio_set_value(H1940_LATCH_BLUETOOTH_POWER, 0);
+
+ h1940_led_blink_set(-EINVAL, GPIO_LED_NO_BLINK_LOW, NULL, NULL);
}
}
diff --git a/arch/arm/mach-s3c2410/include/mach/h1940.h b/arch/arm/mach-s3c2410/include/mach/h1940.h
index 4559784..2aa683c 100644
--- a/arch/arm/mach-s3c2410/include/mach/h1940.h
+++ b/arch/arm/mach-s3c2410/include/mach/h1940.h
@@ -17,5 +17,8 @@
#define H1940_SUSPEND_CHECK (0x30080000)
extern void h1940_pm_return(void);
+extern int h1940_led_blink_set(unsigned gpio, int state,
+ unsigned long *delay_on, unsigned long *delay_off);
+
#endif /* __ASM_ARCH_H1940_H */
diff --git a/arch/arm/mach-s3c2410/mach-h1940.c b/arch/arm/mach-s3c2410/mach-h1940.c
index 0756440..36cdb72 100644
--- a/arch/arm/mach-s3c2410/mach-h1940.c
+++ b/arch/arm/mach-s3c2410/mach-h1940.c
@@ -27,6 +27,8 @@
#include <linux/gpio_keys.h>
#include <linux/pwm_backlight.h>
#include <linux/i2c.h>
+#include <linux/leds.h>
+
#include <video/platform_lcd.h>
#include <linux/mmc/host.h>
@@ -216,9 +218,87 @@ static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
.gpdup_mask= 0xffffffff,
};
+DEFINE_SPINLOCK(h1940_blink_spin);
+
+int h1940_led_blink_set(unsigned gpio, int state,
+ unsigned long *delay_on, unsigned long *delay_off)
+{
+ int blink_gpio, check_gpio1, check_gpio2;
+
+ switch (gpio) {
+ case H1940_LATCH_LED_GREEN:
+ blink_gpio = S3C2410_GPA(7);
+ check_gpio1 = S3C2410_GPA(1);
+ check_gpio2 = S3C2410_GPA(3);
+ break;
+ case H1940_LATCH_LED_RED:
+ blink_gpio = S3C2410_GPA(1);
+ check_gpio1 = S3C2410_GPA(7);
+ check_gpio2 = S3C2410_GPA(3);
+ break;
+ default:
+ blink_gpio = S3C2410_GPA(3);
+ check_gpio1 = S3C2410_GPA(1);
+ check_gpio1 = S3C2410_GPA(7);
+ break;
+ }
+
+ if (delay_on && delay_off && !*delay_on && !*delay_off)
+ *delay_on = *delay_off = 500;
+
+ spin_lock(&h1940_blink_spin);
+
+ switch (state) {
+ case GPIO_LED_NO_BLINK_LOW:
+ case GPIO_LED_NO_BLINK_HIGH:
+ if (!gpio_get_value(check_gpio1) &&
+ !gpio_get_value(check_gpio2))
+ gpio_set_value(H1940_LATCH_LED_FLASH, 0);
+ gpio_set_value(blink_gpio, 0);
+ if (gpio_is_valid(gpio))
+ gpio_set_value(gpio, state);
+ break;
+ case GPIO_LED_BLINK:
+ if (gpio_is_valid(gpio))
+ gpio_set_value(gpio, 0);
+ gpio_set_value(H1940_LATCH_LED_FLASH, 1);
+ gpio_set_value(blink_gpio, 1);
+ break;
+ }
+
+ spin_unlock(&h1940_blink_spin);
+
+ return 0;
+}
+EXPORT_SYMBOL(h1940_led_blink_set);
+
+static struct gpio_led h1940_leds_desc[] = {
+ {
+ .name = "Green",
+ .default_trigger = "main-battery-charging-or-full",
+ .gpio = H1940_LATCH_LED_GREEN,
+ .retain_state_suspended = 1,
+ },
+ {
+ .name = "Red",
+ .default_trigger = "main-battery-full",
+ .gpio = H1940_LATCH_LED_RED,
+ .retain_state_suspended = 1,
+ },
+};
+
+static struct gpio_led_platform_data h1940_leds_pdata = {
+ .num_leds = ARRAY_SIZE(h1940_leds_desc),
+ .leds = h1940_leds_desc,
+ .gpio_blink_set = h1940_led_blink_set,
+};
+
static struct platform_device h1940_device_leds = {
- .name = "h1940-leds",
- .id = -1,
+ .name = "leds-gpio",
+ .id = -1,
+ .dev = {
+ .platform_data = &h1940_leds_pdata,
+ },
};
static struct platform_device h1940_device_bluetooth = {
@@ -500,6 +580,15 @@ static void __init h1940_init(void)
platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
+ gpio_request(S3C2410_GPA(1), "Red LED blink");
+ gpio_request(S3C2410_GPA(3), "Blue LED blink");
+ gpio_request(S3C2410_GPA(7), "Green LED blink");
+ gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
+ gpio_direction_output(S3C2410_GPA(1), 0);
+ gpio_direction_output(S3C2410_GPA(3), 0);
+ gpio_direction_output(S3C2410_GPA(7), 0);
+ gpio_direction_output(H1940_LATCH_LED_FLASH, 0);
+
i2c_register_board_info(0, h1940_i2c_devices,
ARRAY_SIZE(h1940_i2c_devices));
}