linux-kernel - Re: [PATCH 1/3] dt-bindings: reset: Add HI3670 reset controller binding

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Date:   Thu, 07 Feb 2019 11:41:34 +0100
From:   Philipp Zabel <p.zabel@...gutronix.de>
To:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        xuwei5@...ilicon.com, robh+dt@...nel.org
Cc:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, guodong.xu@...aro.org
Subject: Re: [PATCH 1/3] dt-bindings: reset: Add HI3670 reset controller
 binding

Hi Manivannan,

On Fri, 2019-02-01 at 21:08 +0530, Manivannan Sadhasivam wrote:
> HI3670 SoC is architecturally same as the HI3660 SoC. Hence, the same
> driver is reused for HI3670 SoC and the binding is documented here.
> 
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> ---
>  .../devicetree/bindings/reset/hisilicon,hi3660-reset.txt     | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt b/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt
> index 2bf3344b2a02..5d60ec541331 100644
> --- a/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt
> +++ b/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt
> @@ -5,11 +5,12 @@ Please also refer to reset.txt in this directory for common reset
>  controller binding usage.
>  
>  The reset controller registers are part of the system-ctl block on
> -hi3660 SoC.
> +hi3660 and hi3670 SoCs.
>  
>  Required properties:
> -- compatible: should be
> +- compatible: should be one of the following:
>  		 "hisilicon,hi3660-reset"
> +		 "hisilicon,hi3670-reset"

If the HI3670 reset controller is compatible to the HI3660 reset
controller, this could be:

- compatible: should be one of the following:
              "hisilicon,hi3660-reset" for HI3660
              "hisilicon,hi3670-reset", "hisilicon,hi3660-reset" for HI3670

That way there would be no need to change the driver and it would be
documented that the two reset controllers are compatible.

regards
Philipp