23 files changed, 519 insertions, 277 deletions

diff --git a/Documentation/leds-class.txt b/Documentation/leds-class.txt
index 8c35c0426110..56757c751d6f 100644
--- a/Documentation/leds-class.txt
+++ b/Documentation/leds-class.txt
@@ -39,12 +39,33 @@ LED Device Naming
 
 Is currently of the form:
 
-"devicename:colour"
+"devicename:colour:function"
 
 There have been calls for LED properties such as colour to be exported as
 individual led class attributes. As a solution which doesn't incur as much
 overhead, I suggest these become part of the device name. The naming scheme
-above leaves scope for further attributes should they be needed.
+above leaves scope for further attributes should they be needed. If sections
+of the name don't apply, just leave that section blank.
+
+
+Hardware accelerated blink of LEDs
+==================================
+
+Some LEDs can be programmed to blink without any CPU interaction. To
+support this feature, a LED driver can optionally implement the
+blink_set() function (see <linux/leds.h>). If implemeted, triggers can
+attempt to use it before falling back to software timers. The blink_set()
+function should return 0 if the blink setting is supported, or -EINVAL
+otherwise, which means that LED blinking will be handled by software.
+
+The blink_set() function should choose a user friendly blinking
+value if it is called with *delay_on==0 && *delay_off==0 parameters. In
+this case the driver should give back the chosen value through delay_on
+and delay_off parameters to the leds subsystem.
+
+Any call to the brightness_set() callback function should cancel the
+previously programmed hardware blinking function so setting the brightness
+to 0 can also cancel the blinking of the LED.
 
 
 Known Issues
@@ -55,10 +76,6 @@ would cause nightmare dependency issues. I see this as a minor issue
 compared to the benefits the simple trigger functionality brings. The
 rest of the LED subsystem can be modular.
 
-Some leds can be programmed to flash in hardware. As this isn't a generic
-LED device property, this should be exported as a device specific sysfs
-attribute rather than part of the class if this functionality is required.
-
 
 Future Development
 ==================
diff --git a/arch/arm/mach-ixp4xx/dsmg600-setup.c b/arch/arm/mach-ixp4xx/dsmg600-setup.c
index 688659668bdf..8cb07437a807 100644
--- a/arch/arm/mach-ixp4xx/dsmg600-setup.c
+++ b/arch/arm/mach-ixp4xx/dsmg600-setup.c
@@ -71,11 +71,11 @@ static struct i2c_board_info __initdata dsmg600_i2c_board_info [] = {
 
 static struct gpio_led dsmg600_led_pins[] = {
         {
-                .name           = "power",
+                .name           = "dsmg600:green:power",
                 .gpio           = DSMG600_LED_PWR_GPIO,
         },
         {
-                .name           = "wlan",
+                .name           = "dsmg600:green:wlan",
                 .gpio           = DSMG600_LED_WLAN_GPIO,
                 .active_low     = true,
         },
diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c
index 4cecae84837b..159e1c4f1eda 100644
--- a/arch/arm/mach-ixp4xx/nas100d-setup.c
+++ b/arch/arm/mach-ixp4xx/nas100d-setup.c
@@ -60,17 +60,17 @@ static struct i2c_board_info __initdata nas100d_i2c_board_info [] = {
 
 static struct gpio_led nas100d_led_pins[] = {
         {
-                .name           = "wlan",   /* green led */
+                .name           = "nas100d:green:wlan",
                 .gpio           = NAS100D_LED_WLAN_GPIO,
                 .active_low     = true,
         },
         {
-                .name           = "power",  /* blue power led (off=flashing) */
+                .name           = "nas100d:blue:power",  /* (off=flashing) */
                 .gpio           = NAS100D_LED_PWR_GPIO,
                 .active_low     = true,
         },
         {
-                .name           = "disk",   /* yellow led */
+                .name           = "nas100d:yellow:disk",
                 .gpio           = NAS100D_LED_DISK_GPIO,
                 .active_low     = true,
         },
diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c
index acaebcbce53a..d9a182895a0f 100644
--- a/arch/arm/mach-ixp4xx/nslu2-setup.c
+++ b/arch/arm/mach-ixp4xx/nslu2-setup.c
@@ -63,20 +63,20 @@ static struct i2c_board_info __initdata nslu2_i2c_board_info [] = {
 
 static struct gpio_led nslu2_led_pins[] = {
         {
-                .name           = "ready",  /* green led */
+                .name           = "nslu2:green:ready",
                 .gpio           = NSLU2_LED_GRN_GPIO,
         },
         {
-                .name           = "status", /* red led */
+                .name           = "nslu2:red:status",
                 .gpio           = NSLU2_LED_RED_GPIO,
         },
         {
-                .name           = "disk-1",
+                .name           = "nslu2:green:disk-1",
                 .gpio           = NSLU2_LED_DISK1_GPIO,
                 .active_low     = true,
         },
         {
-                .name           = "disk-2",
+                .name           = "nslu2:green:disk-2",
                 .gpio           = NSLU2_LED_DISK2_GPIO,
                 .active_low     = true,
         },
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index 86c66c345f8b..0c94770b7f83 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -905,7 +905,7 @@ static ssize_t applesmc_key_at_index_store(struct device *dev,
 }
 
 static struct led_classdev applesmc_backlight = {
-        .name                   = "smc:kbd_backlight",
+        .name                   = "smc::kbd_backlight",
         .default_trigger        = "nand-disk",
         .brightness_set         = applesmc_brightness_set,
 };
diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c
index b438d998625c..72176f3d49cb 100644
--- a/drivers/input/misc/wistron_btns.c
+++ b/drivers/input/misc/wistron_btns.c
@@ -998,12 +998,12 @@ static void wistron_wifi_led_set(struct led_classdev *led_cdev,
 }
 
 static struct led_classdev wistron_mail_led = {