linux-kernel - Re: [PATCH v6 0/6] Add DSC v1.2 Support for DSI

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Date:   Thu, 15 Jun 2023 14:25:35 +0200
From:   Marijn Suijten <marijn.suijten@...ainline.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>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Jessica Zhang <quic_jesszhan@...cinc.com>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 0/6] Add DSC v1.2 Support for DSI

On 2023-06-15 14:31:26, Dmitry Baryshkov wrote:
> 
> On Fri, 09 Jun 2023 15:57:12 -0700, Jessica Zhang wrote:
> > This is a series of changes for DSI to enable command mode support
> > for DSC v1.2.
> > 
> > This includes:
> > 
> > 1) Rounding up `hdisplay / 3` in dsc_timing_setup()
> > 2) Adjusting pclk_rate to account for compression
> > 3) Fixing incorrect uses of slice_count in DSI DSC calculations
> > 4) Setting the DATA_COMPRESS bit when DSC is enabled
> > 
> > [...]
> 
> Applied, thanks!
> 
> [1/6] msm/drm/dsi: Round up DSC hdisplay calculation
>       https://gitlab.freedesktop.org/lumag/msm/-/commit/21bf617110ba
> [2/6] drm/msm/dsi: Reduce pclk rate for compression
>       https://gitlab.freedesktop.org/lumag/msm/-/commit/7c9e4a554d4a
> [3/6] drm/msm/dpu: Add DPU_INTF_DATA_COMPRESS feature flag for DPU >= 7.0
>       https://gitlab.freedesktop.org/lumag/msm/-/commit/22598cfc94bb
> [4/6] drm/msm/dpu: Set DATA_COMPRESS on command mode for DCE/DSC 1.2
>       https://gitlab.freedesktop.org/lumag/msm/-/commit/1642b5803473
> [5/6] drm/msm/dsi: Remove incorrect references to slice_count
>       https://gitlab.freedesktop.org/lumag/msm/-/commit/155fa3a91d64
> 
> Note, patch 6 is skipped for now

Note that we also haven't finished discussions on where the ratio in
patch 2/6 comes from and how that should be outlined in patch 6.
Related to the widebus patches which affect the ratio as well.

- Marijn