summaryrefslogtreecommitdiffstats
path: root/kernel/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt')
-rw-r--r--kernel/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt20
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt b/kernel/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt
new file mode 100644
index 000000000..b8be3d09e
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt
@@ -0,0 +1,20 @@
+Rockchip PWM controller
+
+Required properties:
+ - compatible: should be "rockchip,<name>-pwm"
+ "rockchip,rk2928-pwm": found on RK29XX,RK3066 and RK3188 SoCs
+ "rockchip,rk3288-pwm": found on RK3288 SoC
+ "rockchip,vop-pwm": found integrated in VOP on RK3288 SoC
+ - reg: physical base address and length of the controller's registers
+ - clocks: phandle and clock specifier of the PWM reference clock
+ - #pwm-cells: must be 2 (rk2928) or 3 (rk3288). See pwm.txt in this directory
+ for a description of the cell format.
+
+Example:
+
+ pwm0: pwm@20030000 {
+ compatible = "rockchip,rk2928-pwm";
+ reg = <0x20030000 0x10>;
+ clocks = <&cru PCLK_PWM01>;
+ #pwm-cells = <2>;
+ };