The 3rd LED on this board is something like a power-led, it is on all the
time. With this change to the leds-wrap driver it is possible to use this
LED too.
Signed-off-by: Michael Loeffler <[email protected]>
---
Hi
I wonder why there was no support for this LED. This LED and the GPIO
line is documented in the first commit message (0d75565f) for this file.
I use this changed version for five weeks and it just works. I think this
patch can be included in 2.6.25.
bye
PS: I'm not subscribed to the lkml, so please Cc me.
drivers/leds/leds-wrap.c | 43 +++++++++++++++++++++++++++++++++++++------
1 files changed, 37 insertions(+), 6 deletions(-)
diff --git a/drivers/leds/leds-wrap.c b/drivers/leds/leds-wrap.c
index 27fb2d8..254e426 100644
--- a/drivers/leds/leds-wrap.c
+++ b/drivers/leds/leds-wrap.c
@@ -19,11 +19,21 @@
#include <linux/scx200_gpio.h>
#define DRVNAME "wrap-led"
+#define WRAP_POWER_LED_GPIO 2
#define WRAP_ERROR_LED_GPIO 3
-#define WRAP_EXTRA_LED_GPIO 18
+#define WRAP_EXTRA_LED_GPIO 18
static struct platform_device *pdev;
+static void wrap_power_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ if (value)
+ scx200_gpio_set_low(WRAP_POWER_LED_GPIO);
+ else
+ scx200_gpio_set_high(WRAP_POWER_LED_GPIO);
+}
+
static void wrap_error_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
@@ -42,6 +52,11 @@ static void wrap_extra_led_set(struct led_classdev *led_cdev,
scx200_gpio_set_high(WRAP_EXTRA_LED_GPIO);
}
+static struct led_classdev wrap_power_led = {
+ .name = "wrap:power",
+ .brightness_set = wrap_power_led_set,
+};
+
static struct led_classdev wrap_error_led = {
.name = "wrap:error",
.brightness_set = wrap_error_led_set,
@@ -56,6 +71,7 @@ static struct led_classdev wrap_extra_led = {
static int wrap_led_suspend(struct platform_device *dev,
pm_message_t state)
{
+ led_classdev_suspend(&wrap_power_led);
led_classdev_suspend(&wrap_error_led);
led_classdev_suspend(&wrap_extra_led);
return 0;
@@ -63,6 +79,7 @@ static int wrap_led_suspend(struct platform_device *dev,
static int wrap_led_resume(struct platform_device *dev)
{
+ led_classdev_resume(&wrap_power_led);
led_classdev_resume(&wrap_error_led);
led_classdev_resume(&wrap_extra_led);
return 0;
@@ -76,17 +93,31 @@ static int wrap_led_probe(struct platform_device *pdev)
{
int ret;
+ ret = led_classdev_register(&pdev->dev, &wrap_power_led);
+ if (ret < 0)
+ return ret;
+
ret = led_classdev_register(&pdev->dev, &wrap_error_led);
- if (ret == 0) {
- ret = led_classdev_register(&pdev->dev, &wrap_extra_led);
- if (ret < 0)
- led_classdev_unregister(&wrap_error_led);
- }
+ if (ret < 0)
+ goto err1;
+
+ ret = led_classdev_register(&pdev->dev, &wrap_extra_led);
+ if (ret < 0)
+ goto err2;
+
+ return ret;
+
+err2:
+ led_classdev_unregister(&wrap_error_led);
+err1:
+ led_classdev_unregister(&wrap_power_led);
+
return ret;
}
static int wrap_led_remove(struct platform_device *pdev)
{
+ led_classdev_unregister(&wrap_power_led);
led_classdev_unregister(&wrap_error_led);
led_classdev_unregister(&wrap_extra_led);
return 0;
--
1.5.3.7.1112.g9758e
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