linux-kernel - Re: [PATCH v2 11/14] drm/msm/dpu: Share SSPP info for multi-rect case

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Message-ID: <CABymUCO0u8hOLtie7typUQ3XV4AAds3RhT_hF23WB5Ruiz9AnQ@mail.gmail.com>
Date: Fri, 11 Oct 2024 14:53:49 +0800
From: Jun Nie <jun.nie@...aro.org>
To: Dmitry Baryshkov <dmitry.baryshkov@...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>, Daniel Vetter <daniel@...ll.ch>, linux-arm-msm@...r.kernel.org, 
	dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 11/14] drm/msm/dpu: Share SSPP info for multi-rect case

Dmitry Baryshkov <dmitry.baryshkov@...aro.org> 于2024年10月10日周四 21:21写道：
>
> On Wed, Oct 09, 2024 at 04:50:24PM GMT, Jun Nie wrote:
> > Share SSPP info for multi-rect case if virtual plane is not enabled.
> > Otherwise, the 2nd half of DMA content is not displayed due to sspp
> > pointer of r_pipe is null.
>
> Fixes?

Yeah. It is to fix bug in non virtual plane mode. Do you suggest to split
to another patch set?
>
> >
> > Signed-off-by: Jun Nie <jun.nie@...aro.org>
> > ---
> >  drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 5 +++++
> >  1 file changed, 5 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
> > index 904ebec1c8a18..898fc2937954e 100644
> > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
> > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
> > @@ -1042,6 +1042,11 @@ static int dpu_plane_atomic_check(struct drm_plane *plane,
> >               pipe->multirect_index = DPU_SSPP_RECT_0;
> >               pipe->multirect_mode = DPU_SSPP_MULTIRECT_PARALLEL;
> >
> > +             /*
> > +              * Signifies that r_pipe is to be used if the width of the 2nd
> > +              * pipe is not 0. This does not apply to virtual plane case.
> > +              */
> > +             r_pipe->sspp = pipe->sspp;
> >               r_pipe->multirect_index = DPU_SSPP_RECT_1;
> >               r_pipe->multirect_mode = DPU_SSPP_MULTIRECT_PARALLEL;
> >       }
> >
> > --
> > 2.34.1
> >
>
> --
> With best wishes
> Dmitry