linux-kernel - Re: [PATCH 2/2] arm64: tegra: Add user PWM support on Jetson Orin

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Message-ID: <eebef02c-e9b9-2ab0-5178-7996cb62a116@linaro.org>
Date:   Fri, 26 Aug 2022 20:35:29 +0300
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Sandipan Patra <spatra@...dia.com>, thierry.reding@...il.com,
        jonathanh@...dia.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, devicetree@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     bbasu@...dia.com, kyarlagadda@...dia.com
Subject: Re: [PATCH 2/2] arm64: tegra: Add user PWM support on Jetson Orin

On 26/08/2022 15:17, Sandipan Patra wrote:
> Enable in device tree and use it to drive the PWM controllers on
> 40 pin header of Orin dev-kit.
> 
> Signed-off-by: Sandipan Patra <spatra@...dia.com>
> ---
>  .../arm64/boot/dts/nvidia/tegra234-p3737-0000.dtsi | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000.dtsi
> index a85993c85e45..e76894574d32 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000.dtsi
> +++ b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000.dtsi
> @@ -2,4 +2,18 @@
>  
>  / {
>  	compatible = "nvidia,p3737-0000";
> +
> +	bus@0 {
> +		pwm@...0000 {
> +			status = "okay";
> +		};

Overriding by node path is error-prone. You should override by label.

Best regards,
Krzysztof