Re: [PATCH v3 3/5] dt-bindings: sdhci-omap: Add bindings for the sdhci-omap controller

[Rob Herring <robh@kernel.org>]

On Wed, Aug 23, 2017 at 11:12:46AM +0530, Kishon Vijay Abraham I wrote:
> Add binding for the TI's sdhci-omap controller. This now includes only
> a subset of properties documented in ti-omap-hsmmc.txt but will eventually
> include all the properties.
> 
> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
> ---
> Changes from v2:
> *) Fixed example to use the updated compatible
> 
> Changes from v1:
> *) Create a new sdhci-omap.txt document for TI's sdhci-omap controller instead
>    of using the ti-omap-hsmmc.txt as suggested by Tony
>  .../devicetree/bindings/mmc/sdhci-omap.txt         | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mmc/sdhci-omap.txt
> 
> diff --git a/Documentation/devicetree/bindings/mmc/sdhci-omap.txt b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt
> new file mode 100644
> index 000000000000..139695ad2d58
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt
> @@ -0,0 +1,22 @@
> +* TI OMAP SDHCI Controller
> +
> +Refer to mmc.txt for standard MMC bindings.
> +
> +Required properties:
> +- compatible: Should be "ti,dra7-sdhci" for DRA7 and DRA72 controllers
> +- ti,hwmods: Must be "mmc<n>", <n> is controller instance starting 1
> +
> +Optional properties:
> +- ti,dual-volt: boolean, supports dual voltage cards
> +- ti,non-removable: non-removable slot (like eMMC)

Well, if you are doing a new compatible, then why aren't you using 
common properties?

> +
> +Example:
> +	mmc1: mmc@0x4809c000 {

Drop the '0x'.

> +		compatible = "ti,dra7-sdhci";
> +		reg = <0x4809c000 0x400>;
> +		ti,hwmods = "mmc1";
> +		ti,dual-volt;
> +		bus-width = <4>;
> +		vmmc-supply = <&vmmc>; /* phandle to regulator node */
> +		ti,non-removable;
> +	};
> -- 
> 2.11.0
>