linux-kernel - Re: [PATCH 1/3] drm/msm/dpu: Add DPU_INTF_DATABUS

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Date:   Thu, 15 Jun 2023 00:49:53 +0200
From:   Marijn Suijten <marijn.suijten@...ainline.org>
To:     Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc:     Jessica Zhang <quic_jesszhan@...cinc.com>,
        Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
        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 1/3] drm/msm/dpu: Add DPU_INTF_DATABUS_WIDEN feature flag
 for DPU >= 5.0

On 2023-06-14 14:23:38, Marijn Suijten wrote:
<snip>
> Tested this on SM8350 which actually has DSI 2.5, and it is also
> corrupted with this series so something else on this series might be
> broken.

Never mind, this was a bad conflict-resolve.  Jessica's original
BURST_MODE patch was RMW'ing MDP_CTRL2, but the upstreamed patch was
only writing, and the way I conflict-resolved that caused the write of
BURST_MODE to overwrite the RMW DATABUS_WIDEN.

If both are moved to dsi_ctrl_config(), we could do a read, add both
flags in conditionally, and write.

- Marijn