linux-kernel - Re: [PATCH v6 14/15] drm/msm/dpu: support plane splitting in quad-pipe case

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Message-ID: <5sio6so2dcdadxps4russkuk4i4duui3oxcl3aeiafkbsw4ag2@g6l42epivgpz>
Date: Fri, 21 Feb 2025 18:37:52 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Jun Nie <jun.nie@...aro.org>
Cc: Rob Clark <robdclark@...il.com>, 
	Abhinav Kumar <quic_abhinavk@...cinc.com>, Sean Paul <sean@...rly.run>, 
	Marijn Suijten <marijn.suijten@...ainline.org>, David Airlie <airlied@...il.com>, 
	Simona Vetter <simona@...ll.ch>, Jessica Zhang <quic_jesszhan@...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 v6 14/15] drm/msm/dpu: support plane splitting in
 quad-pipe case

On Mon, Feb 17, 2025 at 10:16:03PM +0800, Jun Nie wrote:
> The content of every half of screen is sent out via one interface in
> dual-DSI case. The content for every interface is blended by a LM
> pair in quad-pipe case, thus a LM pair should not blend any content
> that cross the half of screen in this case. Clip plane into pipes per
> left and right half screen ROI if topology is quad pipe case.
> 
> The clipped rectangle on every half of screen is futher handled by two
> pipes if its width exceeds a limit for a single pipe.
> 
> Signed-off-by: Jun Nie <jun.nie@...aro.org>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c  |  11 +++
>  drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h  |   2 +
>  drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 134 +++++++++++++++++++++---------
>  3 files changed, 107 insertions(+), 40 deletions(-)
> 

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

-- 
With best wishes
Dmitry