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/pwm/pwm-bcm2835.txt | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 kernel/Documentation/devicetree/bindings/pwm/pwm-bcm2835.txt (limited to 'kernel/Documentation/devicetree/bindings/pwm/pwm-bcm2835.txt') diff --git a/kernel/Documentation/devicetree/bindings/pwm/pwm-bcm2835.txt b/kernel/Documentation/devicetree/bindings/pwm/pwm-bcm2835.txt new file mode 100644 index 000000000..fb6fb31bc --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/pwm/pwm-bcm2835.txt @@ -0,0 +1,30 @@ +BCM2835 PWM controller (Raspberry Pi controller) + +Required properties: +- compatible: should be "brcm,bcm2835-pwm" +- reg: physical base address and length of the controller's registers +- clock: This clock defines the base clock frequency of the PWM hardware + system, the period and the duty_cycle of the PWM signal is a multiple of + the base period. +- #pwm-cells: Should be 2. See pwm.txt in this directory for a description of + the cells format. + +Examples: + +pwm@2020c000 { + compatible = "brcm,bcm2835-pwm"; + reg = <0x2020c000 0x28>; + clocks = <&clk_pwm>; + #pwm-cells = <2>; +}; + +clocks { + .... + clk_pwm: pwm { + compatible = "fixed-clock"; + reg = <3>; + #clock-cells = <0>; + clock-frequency = <9200000>; + }; + .... +}; -- cgit 1.2.3-korg