linux-kernel - Re: [PATCH v2 1/3] dt-bindings: mmc: Add support for rk3576 dw-mshc

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Message-ID: <0e46f4c2-5092-4803-9e6a-aa539a106fab@kernel.org>
Date: Sat, 10 Aug 2024 14:32:01 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Detlev Casanova <detlev.casanova@...labora.com>,
 linux-kernel@...r.kernel.org
Cc: Ulf Hansson <ulf.hansson@...aro.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>,
 Jaehoon Chung <jh80.chung@...sung.com>, linux-mmc@...r.kernel.org,
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-rockchip@...ts.infradead.org, kernel@...labora.com
Subject: Re: [PATCH v2 1/3] dt-bindings: mmc: Add support for rk3576 dw-mshc

On 08/08/2024 18:47, Detlev Casanova wrote:
> Add the compatible string for rockchip,rk3576-dw-mshc and add support
> for the rockchip,v2-tuning flag, a new feature of this core.
> 
> Signed-off-by: Detlev Casanova <detlev.casanova@...labora.com>
> ---
>  .../devicetree/bindings/mmc/rockchip-dw-mshc.yaml          | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml
> index 211cd0b0bc5f3..86c986a7adb23 100644
> --- a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml
> +++ b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml
> @@ -39,6 +39,7 @@ properties:
>                - rockchip,rk3368-dw-mshc
>                - rockchip,rk3399-dw-mshc
>                - rockchip,rk3568-dw-mshc
> +              - rockchip,rk3576-dw-mshc
>                - rockchip,rk3588-dw-mshc
>                - rockchip,rv1108-dw-mshc
>                - rockchip,rv1126-dw-mshc
> @@ -95,6 +96,12 @@ properties:
>        If not specified, the host will do tuning for 360 times,
>        namely tuning for each degree.
>  
> +  rockchip,v2-tuning:
> +    $ref: /schemas/types.yaml#/definitions/flag
> +    description:
> +      Specify when the v2 tuning is supported. In this case, the hardware
> +      inherits pre-stage loader's phase settings.

Is supported? This sounds compatible specific, so drop it. Unless it is
bootloader dependent, but how?

Best regards,
Krzysztof