linux-kernel - Re: [PATCH v3 3/4] drm/msm/dsi: Add DATABUS_WIDEN MDP

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Date:   Wed, 2 Aug 2023 21:26:47 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Jessica Zhang <quic_jesszhan@...cinc.com>
Cc:     Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>, quic_abhinavk@...cinc.com,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 3/4] drm/msm/dsi: Add DATABUS_WIDEN MDP_CTRL2 bit

On Wed, 2 Aug 2023 at 21:09, Jessica Zhang <quic_jesszhan@...cinc.com> wrote:
>
> Add a DATABUS_WIDEN bit to the MDP_CTRL2 register to allow DSI to enable
> databus widen mode.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

(The patch will probably be replaced by Rob syncing up msm headers).

>
> Signed-off-by: Jessica Zhang <quic_jesszhan@...cinc.com>
> ---
>  drivers/gpu/drm/msm/dsi/dsi.xml.h | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/msm/dsi/dsi.xml.h b/drivers/gpu/drm/msm/dsi/dsi.xml.h
> index a4a154601114..2a7d980e12c3 100644
> --- a/drivers/gpu/drm/msm/dsi/dsi.xml.h
> +++ b/drivers/gpu/drm/msm/dsi/dsi.xml.h
> @@ -664,6 +664,7 @@ static inline uint32_t DSI_CMD_MODE_MDP_CTRL2_INPUT_RGB_SWAP(enum dsi_rgb_swap v
>         return ((val) << DSI_CMD_MODE_MDP_CTRL2_INPUT_RGB_SWAP__SHIFT) & DSI_CMD_MODE_MDP_CTRL2_INPUT_RGB_SWAP__MASK;
>  }
>  #define DSI_CMD_MODE_MDP_CTRL2_BURST_MODE                      0x00010000
> +#define DSI_CMD_MODE_MDP_CTRL2_DATABUS_WIDEN                   0x00100000
>
>  #define REG_DSI_CMD_MODE_MDP_STREAM2_CTRL                      0x000001b8
>  #define DSI_CMD_MODE_MDP_STREAM2_CTRL_DATA_TYPE__MASK          0x0000003f
>
> --
> 2.41.0
>


-- 
With best wishes
Dmitry