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authorLinus Torvalds <torvalds@linux-foundation.org>2016-07-27 14:03:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-07-27 14:03:52 -0700
commit607e11ab6654e167b1b0ec132cedc73e220f63c6 (patch)
treedd6f011b69046ef2ec7b2a8c1c9a142ee531e2a3 /Documentation
parent78d51aee04cd20f540c78f1f98f0f9a762ab697a (diff)
parent5706c01fcfb313cef7aed6a283b43c5452cf8336 (diff)
Merge tag 'leds_for_4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
Pull LED updates from Jacek Anaszewski: "New LED class driver: - LED driver for TI LP3952 6-Channel Color LED LED core improvements: - Only descend into leds directory when CONFIG_NEW_LEDS is set - Add no-op gpio_led_register_device when LED subsystem is disabled - MAINTAINERS: Add file patterns for led device tree bindings LED Trigger core improvements: - return error if invalid trigger name is provided via sysfs LED class drivers improvements - is31fl32xx: define complete i2c_device_id table - is31fl32xx: fix typo in id and match table names - leds-gpio: Set of_node for created LED devices - pca9532: Add device tree support Conversion of IDE trigger to common disk trigger: - leds: convert IDE trigger to common disk trigger - leds: documentation: 'ide-disk' to 'disk-activity' - unicore32: use the new LED disk activity trigger - parisc: use the new LED disk activity trigger - mips: use the new LED disk activity trigger - arm: use the new LED disk activity trigger - powerpc: use the new LED disk activity trigger" * tag 'leds_for_4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: leds: is31fl32xx: define complete i2c_device_id table leds: is31fl32xx: fix typo in id and match table names leds: LED driver for TI LP3952 6-Channel Color LED leds: leds-gpio: Set of_node for created LED devices leds: triggers: return error if invalid trigger name is provided via sysfs leds: Only descend into leds directory when CONFIG_NEW_LEDS is set leds: Add no-op gpio_led_register_device when LED subsystem is disabled unicore32: use the new LED disk activity trigger parisc: use the new LED disk activity trigger mips: use the new LED disk activity trigger arm: use the new LED disk activity trigger powerpc: use the new LED disk activity trigger leds: documentation: 'ide-disk' to 'disk-activity' leds: convert IDE trigger to common disk trigger leds: pca9532: Add device tree support MAINTAINERS: Add file patterns for led device tree bindings
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/leds/common.txt4
-rw-r--r--Documentation/devicetree/bindings/leds/leds-gpio.txt4
-rw-r--r--Documentation/devicetree/bindings/leds/leds-pca9532.txt39
-rw-r--r--Documentation/laptops/asus-laptop.txt2
-rw-r--r--Documentation/leds/leds-class.txt2
5 files changed, 46 insertions, 5 deletions
diff --git a/Documentation/devicetree/bindings/leds/common.txt b/Documentation/devicetree/bindings/leds/common.txt
index af10678ea2f6..93ef6e6e43b5 100644
--- a/Documentation/devicetree/bindings/leds/common.txt
+++ b/Documentation/devicetree/bindings/leds/common.txt
@@ -26,7 +26,9 @@ Optional properties for child nodes:
"default-on" - LED will turn on (but for leds-gpio see "default-state"
property in Documentation/devicetree/bindings/gpio/led.txt)
"heartbeat" - LED "double" flashes at a load average based rate
- "ide-disk" - LED indicates disk activity
+ "disk-activity" - LED indicates disk activity
+ "ide-disk" - LED indicates IDE disk activity (deprecated),
+ in new implementations use "disk-activity"
"timer" - LED flashes at a fixed, configurable rate
- led-max-microamp : Maximum LED supply current in microamperes. This property
diff --git a/Documentation/devicetree/bindings/leds/leds-gpio.txt b/Documentation/devicetree/bindings/leds/leds-gpio.txt
index cbbeb1850910..5b1b43a64265 100644
--- a/Documentation/devicetree/bindings/leds/leds-gpio.txt
+++ b/Documentation/devicetree/bindings/leds/leds-gpio.txt
@@ -33,9 +33,9 @@ Examples:
leds {
compatible = "gpio-leds";
hdd {
- label = "IDE Activity";
+ label = "Disk Activity";
gpios = <&mcu_pio 0 GPIO_ACTIVE_LOW>;
- linux,default-trigger = "ide-disk";
+ linux,default-trigger = "disk-activity";
};
fault {
diff --git a/Documentation/devicetree/bindings/leds/leds-pca9532.txt b/Documentation/devicetree/bindings/leds/leds-pca9532.txt
new file mode 100644
index 000000000000..198f3ba0e01f
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-pca9532.txt
@@ -0,0 +1,39 @@
+*NXP - pca9532 PWM LED Driver
+
+The PCA9532 family is SMBus I/O expander optimized for dimming LEDs.
+The PWM support 256 steps.
+
+Required properties:
+ - compatible:
+ "nxp,pca9530"
+ "nxp,pca9531"
+ "nxp,pca9532"
+ "nxp,pca9533"
+ - reg - I2C slave address
+
+Each led is represented as a sub-node of the nxp,pca9530.
+
+Optional sub-node properties:
+ - label: see Documentation/devicetree/bindings/leds/common.txt
+ - type: Output configuration, see dt-bindings/leds/leds-pca9532.h (default NONE)
+ - linux,default-trigger: see Documentation/devicetree/bindings/leds/common.txt
+
+Example:
+ #include <dt-bindings/leds/leds-pca9532.h>
+
+ leds: pca9530@60 {
+ compatible = "nxp,pca9530";
+ reg = <0x60>;
+
+ red-power {
+ label = "pca:red:power";
+ type = <PCA9532_TYPE_LED>;
+ };
+ green-power {
+ label = "pca:green:power";
+ type = <PCA9532_TYPE_LED>;
+ };
+ };
+
+For more product information please see the link below:
+http://nxp.com/documents/data_sheet/PCA9532.pdf
diff --git a/Documentation/laptops/asus-laptop.txt b/Documentation/laptops/asus-laptop.txt
index 79a1bc675a8d..5f2858712aa0 100644
--- a/Documentation/laptops/asus-laptop.txt
+++ b/Documentation/laptops/asus-laptop.txt
@@ -72,7 +72,7 @@ LEDs
echo 1 > /sys/class/leds/asus::mail/brightness
will switch the mail LED on.
You can also know if they are on/off by reading their content and use
- kernel triggers like ide-disk or heartbeat.
+ kernel triggers like disk-activity or heartbeat.
Backlight
---------
diff --git a/Documentation/leds/leds-class.txt b/Documentation/leds/leds-class.txt
index 44f5e6bccd97..f1f7ec9f5cc5 100644
--- a/Documentation/leds/leds-class.txt
+++ b/Documentation/leds/leds-class.txt
@@ -11,7 +11,7 @@ brightness support so will just be turned on for non-zero brightness settings.
The class also introduces the optional concept of an LED trigger. A trigger
is a kernel based source of led events. Triggers can either be simple or
complex. A simple trigger isn't configurable and is designed to slot into
-existing subsystems with minimal additional code. Examples are the ide-disk,
+existing subsystems with minimal additional code. Examples are the disk-activity,
nand-disk and sharpsl-charge triggers. With led triggers disabled, the code
optimises away.