On Thu, Sep 20, 2018 at 09:28:00PM -0700, Can Guo wrote:
> From: Can Guo <[email protected]>
> 
> Add core reset support string for UFS.
> 
> Signed-off-by: Amit Nischal <[email protected]>
> Signed-off-by: Can Guo <[email protected]>
> ---
>  Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt 
> b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
> index c39dfef..6b697c4 100644
> --- a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
> +++ b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
> @@ -11,6 +11,11 @@ Required properties:
>                                         "qcom,ufshc"
>  - interrupts        : <interrupt mapping for UFS host controller IRQ>
>  - reg               : <registers mapping>
> +- reset             : reset specifier pair consists of phandle for the reset 
> provider
> +                      and reset lines used by this controller. It is 
> mandatory for
> +                   QCOM SDM845 platform.
> +- reset-names       : reset signal name strings sorted in the same order as 
> the
> +                   resets property. It is mandatory for QCOM SDM845 platform.

This already exists as of 4.19 under optional properties. (And you can't 
add new required properties anyways.)

>  
>  Optional properties:
>  - phys                  : phandle to UFS PHY node
> @@ -64,6 +69,8 @@ Example:
>               clocks = <&core 0>, <&ref 0>, <&iface 0>;
>               clock-names = "core_clk", "ref_clk", "iface_clk";
>               freq-table-hz = <100000000 200000000>, <0 0>, <0 0>;
> +             resets = <clock_gcc GCC_UFS_BCR>;
> +             reset-names = "core_reset";

And the name should be "rst" (or omitted).

>               phys = <&ufsphy1>;
>               phy-names = "ufsphy";
>       };
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
> 

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