linux-kernel - Re: [PATCH v7 1/2] arm64: dts: ti: k3-j721e-main: Add dts nodes for EHRPWMs

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Date:   Thu, 3 Nov 2022 16:53:01 -0500
From:   Nishanth Menon <nm@...com>
To:     Rahul T R <r-ravikumar@...com>
CC:     <vigneshr@...com>, <kristo@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <jkridner@...il.com>
Subject: Re: [PATCH v7 1/2] arm64: dts: ti: k3-j721e-main: Add dts nodes for
 EHRPWMs

On 23:17-20221103, Rahul T R wrote:
> From: Vijay Pothukuchi <vijayp@...com>
> 
> Add dts nodes for 6 EHRPWM instances on SoC

OK - I  am able to understand why you'd want this to be disabled because
I have the background, however, the intent of a commit message is to
provide information to folks who is not me.

To give you a guidance, please see how Andrew has done
in https://lore.kernel.org/linux-arm-kernel/20221028142417.10642-10-afd@ti.com/

You are permitted to disable, but you need to provide explanation why
you are choosing to do that by default.

> 
> Signed-off-by: Vijay Pothukuchi <vijayp@...com>
> Signed-off-by: Rahul T R <r-ravikumar@...com>
> ---
>  arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 68 ++++++++++++++++++++++-
>  1 file changed, 67 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> index 5c4a0e28cde5..bc3146e24816 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> @@ -66,7 +66,73 @@ usb_serdes_mux: mux-controller@...0 {
>  			#mux-control-cells = <1>;
>  			mux-reg-masks = <0x4000 0x8000000>, /* USB0 to SERDES0/3 mux */
>  					<0x4010 0x8000000>; /* USB1 to SERDES1/2 mux */
> -	    };
> +		};
> +
> +		ehrpwm_tbclk: clock-controller@...0 {
> +			compatible = "ti,am654-ehrpwm-tbclk", "syscon";
> +			reg = <0x4140 0x18>;
> +			#clock-cells = <1>;
> +		};
> +	};
> +
> +	main_ehrpwm0: pwm@...0000 {
> +		compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> +		#pwm-cells = <3>;
> +		reg = <0x00 0x3000000 0x00 0x100>;
> +		power-domains = <&k3_pds 83 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&ehrpwm_tbclk 0>, <&k3_clks 83 0>;
> +		clock-names = "tbclk", "fck";
> +		status = "disabled";
> +	};
> +
> +	main_ehrpwm1: pwm@...0000 {
> +		compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> +		#pwm-cells = <3>;
> +		reg = <0x00 0x3010000 0x00 0x100>;
> +		power-domains = <&k3_pds 84 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&ehrpwm_tbclk 1>, <&k3_clks 84 0>;
> +		clock-names = "tbclk", "fck";
> +		status = "disabled";
> +	};
> +
> +	main_ehrpwm2: pwm@...0000 {
> +		compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> +		#pwm-cells = <3>;
> +		reg = <0x00 0x3020000 0x00 0x100>;
> +		power-domains = <&k3_pds 85 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&ehrpwm_tbclk 2>, <&k3_clks 85 0>;
> +		clock-names = "tbclk", "fck";
> +		status = "disabled";
> +	};
> +
> +	main_ehrpwm3: pwm@...0000 {
> +		compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> +		#pwm-cells = <3>;
> +		reg = <0x00 0x3030000 0x00 0x100>;
> +		power-domains = <&k3_pds 86 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&ehrpwm_tbclk 3>, <&k3_clks 86 0>;
> +		clock-names = "tbclk", "fck";
> +		status = "disabled";
> +	};
> +
> +	main_ehrpwm4: pwm@...0000 {
> +		compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> +		#pwm-cells = <3>;
> +		reg = <0x00 0x3040000 0x00 0x100>;
> +		power-domains = <&k3_pds 87 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&ehrpwm_tbclk 4>, <&k3_clks 87 0>;
> +		clock-names = "tbclk", "fck";
> +		status = "disabled";
> +	};
> +
> +	main_ehrpwm5: pwm@...0000 {
> +		compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> +		#pwm-cells = <3>;
> +		reg = <0x00 0x3050000 0x00 0x100>;
> +		power-domains = <&k3_pds 88 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&ehrpwm_tbclk 5>, <&k3_clks 88 0>;
> +		clock-names = "tbclk", "fck";
> +		status = "disabled";
>  	};
>  
>  	gic500: interrupt-controller@...0000 {
> -- 
> 2.38.0
> 

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D