[v2,9/10] dt-bindings: pwm: update bindings for MT7628 SoC
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Message ID 1565779497-23621-2-git-send-email-sam.shih@mediatek.com
State New
Headers show
Series
  • [v2,1/10] pwm: mediatek: add a property "num-pwms"
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Commit Message

Sam Shih Aug. 14, 2019, 10:43 a.m. UTC
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(+)

Comments

Ryder Lee Aug. 14, 2019, 11:52 a.m. UTC | #1
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>;
> +	};

Patch
diff mbox series

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>;
+	};