linux-kernel - Re: [PATCH 0/2] Add MSM8996/MSM8953 dpu catalog

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Message-ID: <CAA8EJpr0C-gXDoJsStTxJzCMEkbZaPeEAcBES3GqZp1FcKb=4Q@mail.gmail.com>
Date: Fri, 27 Sep 2024 18:02:13 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: barnabas.czeman@...nlining.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-kernel@...r.kernel.org, 
	linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
	freedreno@...ts.freedesktop.org, Konrad Dybcio <konrad.dybcio@...ainline.org>
Subject: Re: [PATCH 0/2] Add MSM8996/MSM8953 dpu catalog

On Fri, 27 Sept 2024 at 17:39, <barnabas.czeman@...nlining.org> wrote:
>
> On 2024-08-01 21:25, Dmitry Baryshkov wrote:
> > On Fri, Jun 28, 2024 at 04:39:38PM GMT, Barnabás Czémán wrote:
> >> This patch series add dpu support for MSM8996/MSM8953 devices.
> >>
> >> Note, by default these platforms are still handled by the MDP5 driver
> >> unless the `msm.prefer_mdp5=false' parameter is provided.
> >
> > Could you please provide a summary of features actually tested with the
> > DPU driver? Have you tested YUV output? Have you tested RGB planes?
> I have checked all planes they are working fine.
>
> > Which LMs have you tested?
> I have done some more testing and msm8953 LMs are fine but i have found
> out
> on msmm8996 LM_3 and LM_4 is not working as i see in downstream sde code
> they are not exists.
> This kind of messages i got for LM_3 and LM_4
> [   34.751091] [drm:_dpu_rm_make_reservation] [dpu error]unable to find
> appropriate mixers
> [   34.751112] [drm:dpu_rm_reserve] [dpu error]failed to reserve hw
> resources: -119

I think LM_3 / LM_4 are WB-only, but I didn't have time to check that.
Maybe it's easier to omit them for now.

I hope to get back to those platforms during the forthcoming or the
next development cycle, after (hopefully) finishing the HDMI
conversion story.

-- 
With best wishes
Dmitry