linux-kernel - Re: [PATCH 03/11] drm/msm/dpu: use hsync/vsync polarity set by the encoder

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Message-ID: <2ef93811-3716-a259-538c-08e7b5476f7d@linaro.org>
Date:   Thu, 20 Apr 2023 01:29:48 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Arnaud Vrac <avrac@...ebox.fr>, Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 03/11] drm/msm/dpu: use hsync/vsync polarity set by the
 encoder

On 19/04/2023 17:41, Arnaud Vrac wrote:
> Do not override the hsync/vsync polarity passed by the encoder when
> setting up intf timings. The same logic was used in both the encoder and
> intf code to set the DP and DSI polarities, so those interfaces are not
> impacted. However for HDMI, the polarities were overriden to static
> values based on the vertical resolution, instead of using the actual
> mode polarities.
> 
> Signed-off-by: Arnaud Vrac <avrac@...ebox.fr>
> ---
>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c | 16 +++-------------
>   1 file changed, 3 insertions(+), 13 deletions(-)

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

As a side note: I think at some point we should get rid of the override 
in dpu_encoder too and move it to dsi bridge code.

-- 
With best wishes
Dmitry