From eae266a284f370d40c50dbed7a988a744bab0d44 Mon Sep 17 00:00:00 2001 From: Beniamino Galvani Date: Sat, 21 Jun 2014 16:22:07 +0200 Subject: pwm: rockchip: document device tree bindings This adds binding documentation for Rockchip SoC PWM driver. Signed-off-by: Beniamino Galvani Signed-off-by: Thierry Reding --- Documentation/devicetree/bindings/pwm/pwm-rockchip.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/pwm-rockchip.txt (limited to 'Documentation/devicetree') diff --git a/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt b/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt new file mode 100644 index 000000000000..3182126189bf --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt @@ -0,0 +1,17 @@ +Rockchip PWM controller + +Required properties: + - compatible: should be "rockchip,rk2928-pwm" + - reg: physical base address and length of the controller's registers + - clocks: phandle and clock specifier of the PWM reference clock + - #pwm-cells: should be 2. 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>; + }; -- cgit From acad00d3d67ef2a7177beb70e7aeef5f0bd2bcf0 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Mon, 14 Jul 2014 15:33:28 +0100 Subject: pwm: sti: Supply Device Tree binding documentation for ST's PWM IP Signed-off-by: Ajit Pal Singh Signed-off-by: Lee Jones Signed-off-by: Thierry Reding --- Documentation/devicetree/bindings/pwm/pwm-st.txt | 41 ++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/pwm-st.txt (limited to 'Documentation/devicetree') diff --git a/Documentation/devicetree/bindings/pwm/pwm-st.txt b/Documentation/devicetree/bindings/pwm/pwm-st.txt new file mode 100644 index 000000000000..84d2fb807d3c --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/pwm-st.txt @@ -0,0 +1,41 @@ +STMicroelectronics PWM driver bindings +-------------------------------------- + +Required parameters: +- compatible : "st,pwm" +- #pwm-cells : Number of cells used to specify a PWM. First cell + specifies the per-chip index of the PWM to use and the + second cell is the period in nanoseconds - fixed to 2 + for STiH41x. +- reg : Physical base address and length of the controller's + registers. +- pinctrl-names: Set to "default". +- pinctrl-0: List of phandles pointing to pin configuration nodes + for PWM module. + For Pinctrl properties, please refer to [1]. +- clock-names: Set to "pwm". +- clocks: phandle of the clock used by the PWM module. + For Clk properties, please refer to [2]. + +Optional properties: +- st,pwm-num-chan: Number of available channels. If not passed, the driver + will consider single channel by default. + +[1] Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt +[2] Documentation/devicetree/bindings/clock/clock-bindings.txt + +Example: + +pwm1: pwm@fe510000 { + compatible = "st,pwm"; + reg = <0xfe510000 0x68>; + #pwm-cells = <2>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pwm1_chan0_default + &pinctrl_pwm1_chan1_default + &pinctrl_pwm1_chan2_default + &pinctrl_pwm1_chan3_default>; + clocks = <&clk_sysin>; + clock-names = "pwm"; + st,pwm-num-chan = <4>; +}; -- cgit From 695d49d941387baa3b2f3f412845a25918e030d5 Mon Sep 17 00:00:00 2001 From: Caesar Wang Date: Fri, 8 Aug 2014 15:28:48 +0800 Subject: pwm: rockchip: document RK3288 SoC compatible Document new compatible for PWM founding on RK3288 SoC Signed-off-by: Caesar Wang Signed-off-by: Thierry Reding --- Documentation/devicetree/bindings/pwm/pwm-rockchip.txt | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'Documentation/devicetree') diff --git a/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt b/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt index 3182126189bf..d47d15a6a298 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt @@ -1,7 +1,10 @@ Rockchip PWM controller Required properties: - - compatible: should be "rockchip,rk2928-pwm" + - compatible: should be "rockchip,-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: should be 2. See pwm.txt in this directory for a -- cgit