linux-kernel - Re: [PATCH v4 2/3] dt-bindings: mmc: Add binding for BlueField SoC

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Message-ID: <20180501162446.GA10012@rob-hp-laptop>
Date:   Tue, 1 May 2018 11:24:46 -0500
From:   Rob Herring <robh@...nel.org>
To:     Liming Sun <lsun@...lanox.com>
Cc:     Ulf Hansson <ulf.hansson@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        Jaehoon Chung <jh80.chung@...sung.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>, linux-mmc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/3] dt-bindings: mmc: Add binding for BlueField SoC

On Tue, May 01, 2018 at 10:32:34AM -0400, Liming Sun wrote:
> This commit adds "mellanox,bluefield-dw-mshc" for dwmmc driver
> extension on Mellanox BlueField SoC platform.
> 
> Signed-off-by: Liming Sun <lsun@...lanox.com>
> ---
>  .../devicetree/bindings/mmc/bluefield-dw-mshc.txt  | 29 ++++++++++++++++++++++
>  1 file changed, 29 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mmc/bluefield-dw-mshc.txt
> 
> diff --git a/Documentation/devicetree/bindings/mmc/bluefield-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/bluefield-dw-mshc.txt
> new file mode 100644
> index 0000000..75bd844d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mmc/bluefield-dw-mshc.txt
> @@ -0,0 +1,29 @@
> +* Mellanox Bluefield SoC specific extensions to the Synopsys Designware
> +  Mobile Storage Host Controller
> +
> +Read synopsys-dw-mshc.txt for more details
> +
> +The Synopsys designware mobile storage host controller is used to interface
> +a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
> +differences between the core Synopsys dw mshc controller properties described
> +by synopsys-dw-mshc.txt and the properties used by the Mellanox Bluefield SoC
> +specific extensions to the Synopsys Designware Mobile Storage Host Controller.
> +
> +Required Properties:
> +
> +* compatible: should be one of the following.
> +  - "mellanox,bluefield-dw-mshc": for controllers with Mellanox Bluefield SoC
> +    specific extensions.
> +
> +Example:
> +
> +	/* Mellanox Bluefield SoC MMC */
> +	mmc@...008000 {

Drop the '0x'.

Building your dtb with 'W=1' will warn on this.

With that,

Reviewed-by: Rob Herring <robh@...nel.org>

> +		compatible = "mellanox,bluefield-dw-mshc";
> +		reg = <0x6008000 0x400>;
> +		interrupts = <32>;
> +		fifo-depth = <0x100>;
> +		clock-frequency = <24000000>;
> +		bus-width = <8>;
> +		cap-mmc-highspeed;
> +	};
> -- 
> 1.8.3.1
>