linux-kernel - Re: [PATCH 3/4] dt-bindings: soc: samsung: exynos-sysreg: add dedicated SYSREG compatibles to Exynos5433

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Message-ID: <CAPLW+4kwFCLaiowajdCnA09eT4emOB-3d-6cbA=ZYyRLwYuCxw@mail.gmail.com>
Date:   Fri, 25 Nov 2022 08:22:19 -0600
From:   Sam Protsenko <semen.protsenko@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Lee Jones <lee@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org,
        Sriranjani P <sriranjani.p@...sung.com>,
        Chanho Park <chanho61.park@...sung.com>
Subject: Re: [PATCH 3/4] dt-bindings: soc: samsung: exynos-sysreg: add
 dedicated SYSREG compatibles to Exynos5433

On Fri, 25 Nov 2022 at 05:22, Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> Exynos5433 has several different SYSREGs, so use dedicated compatibles
> for them.
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
>
> ---
>
> Cc: Sriranjani P <sriranjani.p@...sung.com>
> Cc: Chanho Park <chanho61.park@...sung.com>
> Cc: Sam Protsenko <semen.protsenko@...aro.org>
> ---

Hi Krzysztof,

Just curious: what is the rationale for adding those more specific
sysregs? AFAIR, e.g. in Exynos850, different SysReg instances have
pretty much the same register layout.

Other than that:

Reviewed-by: Sam Protsenko <semen.protsenko@...aro.org>

>  .../bindings/soc/samsung/samsung,exynos-sysreg.yaml | 13 ++++++++++++-
>  1 file changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
> index 68064a5e339c..42357466005e 100644
> --- a/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
> +++ b/Documentation/devicetree/bindings/soc/samsung/samsung,exynos-sysreg.yaml
> @@ -17,10 +17,21 @@ properties:
>                - samsung,exynos3-sysreg
>                - samsung,exynos4-sysreg
>                - samsung,exynos5-sysreg
> -              - samsung,exynos5433-sysreg
>                - samsung,exynos850-sysreg
>                - samsung,exynosautov9-sysreg
>            - const: syscon
> +      - items:
> +          - enum:
> +              - samsung,exynos5433-cam0-sysreg
> +              - samsung,exynos5433-cam1-sysreg
> +              - samsung,exynos5433-disp-sysreg
> +              - samsung,exynos5433-fsys-sysreg
> +          - const: samsung,exynos5433-sysreg
> +          - const: syscon
> +      - items:
> +          - const: samsung,exynos5433-sysreg
> +          - const: syscon
> +        deprecated: true
>
>    reg:
>      maxItems: 1
> --
> 2.34.1
>