add patch for gpio-leds to support special brightness values, thanks to Bernhard Held (closes: #2572)

SVN-Revision: 9360

target/linux/adm5120/patches-2.6.23/203-gpio_leds_brightness.patch

@@ -0,0 +1,29 @@
+Index: linux-2.6.23/drivers/leds/leds-gpio.c
+===================================================================
+--- linux-2.6.23.orig/drivers/leds/leds-gpio.c
++++ linux-2.6.23/drivers/leds/leds-gpio.c
+@@ -41,13 +41,17 @@
+ 		container_of(led_cdev, struct gpio_led_data, cdev);
+ 	int level;
+ 
+-	if (value == LED_OFF)
+-		level = 0;
+-	else
+-		level = 1;
+-
+-	if (led_dat->active_low)
+-		level = !level;
++	switch (value) {
++	case LED_OFF:
++		level = led_dat->active_low ? 1 : 0;
++		break;
++	case LED_FULL:
++		level = led_dat->active_low ? 0 : 1;
++		break;
++	default:
++		level = value;
++		break;
++	}
+ 
+ 	/* setting GPIOs with I2C/etc requires a preemptible task context */
+ 	if (led_dat->can_sleep) {