linux-kernel - Re: [PATCH 1/3] dt-bindings: pwm: tegra: Add compatible string for Tegra234

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Message-ID: <75d5e29e-7418-3b8f-f549-6a69fd479852@linaro.org>
Date:   Thu, 8 Sep 2022 14:13:33 +0200
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 1/3] dt-bindings: pwm: tegra: Add compatible string for
 Tegra234

On 07/09/2022 08:25, Sandipan Patra wrote:
> Tegra234 has 8 different PWM controllers and each controller has only
> one output. Add a device tree compatible string for Tegra234.
> 
> Signed-off-by: Sandipan Patra <spatra@...dia.com>
> ---
>  Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt b/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt
> index 74c41e34c3b6..331c1e66e8fa 100644
> --- a/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt
> +++ b/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt
> @@ -9,7 +9,7 @@ Required properties:
>    - "nvidia,tegra132-pwm", "nvidia,tegra20-pwm": for Tegra132
>    - "nvidia,tegra210-pwm", "nvidia,tegra20-pwm": for Tegra210
>    - "nvidia,tegra186-pwm": for Tegra186
> -  - "nvidia,tegra194-pwm": for Tegra194
> +  - "nvidia,tegra194-pwm": for Tegra194, Tegra234

The commit msg suggest it is different. Are you sure they are exactly
the same? If not the same, but compatible, you should use fallback.

Best regards,
Krzysztof