android_kernel_motorola_sm6225/Documentation/devicetree/bindings/pwm/vt8500-pwm.txt
Tony Prisk 63e1ed2364 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>
2012-11-01 16:23:19 +01:00

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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>;
};