linux-kernel - Re: [PATCH v4 19/22] arm64: dts: mt8192: Add the mmsys reset bit to reset the dsi0

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Message-ID: <20220322201617.s55p4xp3hcb4zgvi@notapiano>
Date:   Tue, 22 Mar 2022 16:16:17 -0400
From:   Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>
To:     Allen-KH Cheng <allen-kh.cheng@...iatek.com>
Cc:     Matthias Brugger <matthias.bgg@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Project_Global_Chrome_Upstream_Group@...iatek.com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        Chen-Yu Tsai <wenst@...omium.org>,
        Ryder Lee <ryder.lee@...nel.org>,
        Hui Liu <hui.liu@...iatek.com>
Subject: Re: [PATCH v4 19/22] arm64: dts: mt8192: Add the mmsys reset bit to
 reset the dsi0

On Fri, Mar 18, 2022 at 10:45:31PM +0800, Allen-KH Cheng wrote:
> Reset the DSI hardware is needed to prevent different settings between
> the bootloader and the kernel.
> 
> Signed-off-by: Allen-KH Cheng <allen-kh.cheng@...iatek.com>

Reviewed-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>

> ---
>  include/dt-bindings/reset/mt8192-resets.h | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/include/dt-bindings/reset/mt8192-resets.h b/include/dt-bindings/reset/mt8192-resets.h
> index be9a7ca245b9..764ca9910fa9 100644
> --- a/include/dt-bindings/reset/mt8192-resets.h
> +++ b/include/dt-bindings/reset/mt8192-resets.h
> @@ -27,4 +27,7 @@
>  
>  #define MT8192_TOPRGU_SW_RST_NUM				23
>  
> +/* MMSYS resets */
> +#define MT8192_MMSYS_SW0_RST_B_DISP_DSI0			15
> +
>  #endif  /* _DT_BINDINGS_RESET_CONTROLLER_MT8192 */
> -- 
> 2.18.0
> 
>