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| author | Tony Prisk <linux@prisktech.co.nz> | 2012-10-27 14:49:57 +1300 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@avionic-design.de> | 2012-11-01 16:23:19 +0100 |
| commit | 63e1ed2364050073770c085021377d7764969b85 (patch) | |
| tree | e95f1e874f5c2096ff63567fcdf00c55fdb660d3 /Documentation/devicetree | |
| parent | 8f0d8163b50e01f398b14bcd4dc039ac5ab18d64 (diff) | |
| download | blackbird-op-linux-63e1ed2364050073770c085021377d7764969b85.tar.gz blackbird-op-linux-63e1ed2364050073770c085021377d7764969b85.zip | |
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>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/pwm/vt8500-pwm.txt | 17 |
1 files changed, 17 insertions, 0 deletions
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>; +}; |
