From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- .../devicetree/bindings/leds/leds-pwm.txt | 50 ++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 kernel/Documentation/devicetree/bindings/leds/leds-pwm.txt (limited to 'kernel/Documentation/devicetree/bindings/leds/leds-pwm.txt') diff --git a/kernel/Documentation/devicetree/bindings/leds/leds-pwm.txt b/kernel/Documentation/devicetree/bindings/leds/leds-pwm.txt new file mode 100644 index 000000000..6c6583c35 --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/leds/leds-pwm.txt @@ -0,0 +1,50 @@ +LED connected to PWM + +Required properties: +- compatible : should be "pwm-leds". + +Each LED is represented as a sub-node of the pwm-leds device. Each +node's name represents the name of the corresponding LED. + +LED sub-node properties: +- pwms : PWM property to point to the PWM device (phandle)/port (id) and to + specify the period time to be used: <&phandle id period_ns>; +- pwm-names : (optional) Name to be used by the PWM subsystem for the PWM device + For the pwms and pwm-names property please refer to: + Documentation/devicetree/bindings/pwm/pwm.txt +- max-brightness : Maximum brightness possible for the LED +- active-low : (optional) For PWMs where the LED is wired to supply + rather than ground. +- label : (optional) + see Documentation/devicetree/bindings/leds/common.txt +- linux,default-trigger : (optional) + see Documentation/devicetree/bindings/leds/common.txt + +Example: + +twl_pwm: pwm { + /* provides two PWMs (id 0, 1 for PWM1 and PWM2) */ + compatible = "ti,twl6030-pwm"; + #pwm-cells = <2>; +}; + +twl_pwmled: pwmled { + /* provides one PWM (id 0 for Charing indicator LED) */ + compatible = "ti,twl6030-pwmled"; + #pwm-cells = <2>; +}; + +pwmleds { + compatible = "pwm-leds"; + kpad { + label = "omap4::keypad"; + pwms = <&twl_pwm 0 7812500>; + max-brightness = <127>; + }; + + charging { + label = "omap4:green:chrg"; + pwms = <&twl_pwmled 0 7812500>; + max-brightness = <255>; + }; +}; -- cgit 1.2.3-korg