linux-kernel - Re: [PATCH v5 1/5] dt-bindings: gpu: mali-bifrost: describe clocks for the rk356x gpu

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Message-ID: <YgP/e29ZPgBW/c05@robh.at.kernel.org>
Date:   Wed, 9 Feb 2022 11:52:59 -0600
From:   Rob Herring <robh@...nel.org>
To:     Michael Riesch <michael.riesch@...fvision.net>
Cc:     dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Heiko Stuebner <heiko@...ech.de>,
        Peter Geis <pgwipeout@...il.com>,
        Nicolas Frattaroli <frattaroli.nicolas@...il.com>,
        Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
        Alex Bee <knaerzche@...il.com>, Liang Chen <cl@...k-chips.com>,
        Sascha Hauer <s.hauer@...gutronix.de>
Subject: Re: [PATCH v5 1/5] dt-bindings: gpu: mali-bifrost: describe clocks
 for the rk356x gpu

On Wed, Feb 09, 2022 at 09:51:06AM +0100, Michael Riesch wrote:
> From: Alex Bee <knaerzche@...il.com>
> 
> The Bifrost GPU in Rockchip RK356x SoCs has a core and a bus clock.
> Reflect this in the SoC specific part of the binding.
> 
> Signed-off-by: Alex Bee <knaerzche@...il.com>
> [move the changes to the SoC section]
> Signed-off-by: Michael Riesch <michael.riesch@...fvision.net>
> ---
>  .../devicetree/bindings/gpu/arm,mali-bifrost.yaml | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
> index 63a08f3f321d..21409c8d3813 100644
> --- a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
> +++ b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
> @@ -159,6 +159,21 @@ allOf:
>          power-domains:
>            maxItems: 1
>          sram-supply: false
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: rockchip,rk3568-mali
> +    then:
> +      properties:
> +        clocks:
> +          minItems: 2
> +        clock-names:
> +          items:
> +           - const: core
> +           - const: bus

Please don't invent new names. We already have 'gpu' and 'bus' defined. 
'core' and 'gpu' sound like the same thing to me, and the h/w doesn't 
have different clocks from vendor to vendor.

Rob