| Message ID | 1565779497-23621-2-git-send-email-sam.shih@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2,1/10] pwm: mediatek: add a property "num-pwms" | expand |
On Wed, 2019-08-14 at 18:43 +0800, Sam Shih wrote: > From: sam shih <sam.shih@mediatek.com> > > This updates bindings for MT7628 pwm controller. > > Signed-off-by: Sam Shih <sam.shih@mediatek.com> > --- > .../devicetree/bindings/pwm/pwm-mediatek.txt | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt b/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt > index c7bd5633d1eb..9d2d893a07ff 100644 > --- a/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt > +++ b/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt > @@ -21,6 +21,8 @@ Required properties: > - pinctrl-0: One property must exist for each entry in pinctrl-names. > See pinctrl/pinctrl-bindings.txt for details of the property values. > - num-pwms: the number of PWM channels. > + - clock-frequency: fix clock frequency, this is an optional property, only use in MT7628 SoC > + for period calculation. This SoC has no complex clock tree. Optional properties: - clock-frequency: ... > Example: > pwm0: pwm@11006000 { > @@ -40,3 +42,13 @@ Example: > pinctrl-0 = <&pwm0_pins>; > num-pwms = <5>; > }; Add a blank here > +MT7628 Example: > + pwm: pwm@5000 { > + compatible = "mediatek,mt7628-pwm"; > + reg = <0x5000 0x1000>; > + #pwm-cells = <2>; > + pinctrl-names = "default"; > + pinctrl-0 = <&pwm0_pins>, <&pwm1_pins>; > + num-pwms = <4>; > + clock-frequency = <100000>; > + };
diff --git a/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt b/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt index c7bd5633d1eb..9d2d893a07ff 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt @@ -21,6 +21,8 @@ Required properties: - pinctrl-0: One property must exist for each entry in pinctrl-names. See pinctrl/pinctrl-bindings.txt for details of the property values. - num-pwms: the number of PWM channels. + - clock-frequency: fix clock frequency, this is an optional property, only use in MT7628 SoC + for period calculation. This SoC has no complex clock tree. Example: pwm0: pwm@11006000 { @@ -40,3 +42,13 @@ Example: pinctrl-0 = <&pwm0_pins>; num-pwms = <5>; }; +MT7628 Example: + pwm: pwm@5000 { + compatible = "mediatek,mt7628-pwm"; + reg = <0x5000 0x1000>; + #pwm-cells = <2>; + pinctrl-names = "default"; + pinctrl-0 = <&pwm0_pins>, <&pwm1_pins>; + num-pwms = <4>; + clock-frequency = <100000>; + };