0001 MediaTek PWM controller
0002
0003 Required properties:
0004 - compatible: should be "mediatek,<name>-pwm":
0005 - "mediatek,mt2712-pwm": found on mt2712 SoC.
0006 - "mediatek,mt6795-pwm": found on mt6795 SoC.
0007 - "mediatek,mt7622-pwm": found on mt7622 SoC.
0008 - "mediatek,mt7623-pwm": found on mt7623 SoC.
0009 - "mediatek,mt7628-pwm": found on mt7628 SoC.
0010 - "mediatek,mt7629-pwm": found on mt7629 SoC.
0011 - "mediatek,mt8183-pwm": found on mt8183 SoC.
0012 - "mediatek,mt8195-pwm", "mediatek,mt8183-pwm": found on mt8195 SoC.
0013 - "mediatek,mt8365-pwm": found on mt8365 SoC.
0014 - "mediatek,mt8516-pwm": found on mt8516 SoC.
0015 - reg: physical base address and length of the controller's registers.
0016 - #pwm-cells: must be 2. See pwm.yaml in this directory for a description of
0017 the cell format.
0018 - clocks: phandle and clock specifier of the PWM reference clock.
0019 - clock-names: must contain the following, except for MT7628 which
0020 has no clocks
0021 - "top": the top clock generator
0022 - "main": clock used by the PWM core
0023 - "pwm1-3": the three per PWM clocks for mt8365
0024 - "pwm1-8": the eight per PWM clocks for mt2712
0025 - "pwm1-6": the six per PWM clocks for mt7622
0026 - "pwm1-5": the five per PWM clocks for mt7623
0027 - "pwm1" : the PWM1 clock for mt7629
0028 - pinctrl-names: Must contain a "default" entry.
0029 - pinctrl-0: One property must exist for each entry in pinctrl-names.
0030 See pinctrl/pinctrl-bindings.txt for details of the property values.
0031
0032 Optional properties:
0033 - assigned-clocks: Reference to the PWM clock entries.
0034 - assigned-clock-parents: The phandle of the parent clock of PWM clock.
0035
0036 Example:
0037 pwm0: pwm@11006000 {
0038 compatible = "mediatek,mt7623-pwm";
0039 reg = <0 0x11006000 0 0x1000>;
0040 #pwm-cells = <2>;
0041 clocks = <&topckgen CLK_TOP_PWM_SEL>,
0042 <&pericfg CLK_PERI_PWM>,
0043 <&pericfg CLK_PERI_PWM1>,
0044 <&pericfg CLK_PERI_PWM2>,
0045 <&pericfg CLK_PERI_PWM3>,
0046 <&pericfg CLK_PERI_PWM4>,
0047 <&pericfg CLK_PERI_PWM5>;
0048 clock-names = "top", "main", "pwm1", "pwm2",
0049 "pwm3", "pwm4", "pwm5";
0050 pinctrl-names = "default";
0051 pinctrl-0 = <&pwm0_pins>;
0052 };
