From 63e1ed2364050073770c085021377d7764969b85 Mon Sep 17 00:00:00 2001 From: Tony Prisk <linux@prisktech.co.nz> Date: Sat, 27 Oct 2012 14:49:57 +1300 Subject: pwm: vt8500: Update vt8500 PWM driver support This patch updates pwm-vt8500.c to support devicetree probing and make use of the common clock subsystem. A binding document describing the PWM controller found on arch-vt8500 is also included. Signed-off-by: Tony Prisk <linux@prisktech.co.nz> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> --- Documentation/devicetree/bindings/pwm/vt8500-pwm.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/vt8500-pwm.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pwm/vt8500-pwm.txt b/Documentation/devicetree/bindings/pwm/vt8500-pwm.txt new file mode 100644 index 000000000000..bcc63678a9a5 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/vt8500-pwm.txt @@ -0,0 +1,17 @@ +VIA/Wondermedia VT8500/WM8xxx series SoC PWM controller + +Required properties: +- compatible: should be "via,vt8500-pwm" +- reg: physical base address and length of the controller's registers +- #pwm-cells: should be 2. The first cell specifies the per-chip index + of the PWM to use and the second cell is the period in nanoseconds. +- clocks: phandle to the PWM source clock + +Example: + +pwm1: pwm@d8220000 { + #pwm-cells = <2>; + compatible = "via,vt8500-pwm"; + reg = <0xd8220000 0x1000>; + clocks = <&clkpwm>; +}; -- cgit v1.2.3