Message-ID: <66b7815c-1103-54bd-adde-e08126401729@linaro.org>
Date:   Tue, 31 Jan 2023 14:45:59 +0200
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Subject: Re: [PATCH v12 00/14] Add PSR support for eDP
Content-Language: en-GB
To:     Vinod Polimera <quic_vpolimer@quicinc.com>,
        dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org,
        freedreno@lists.freedesktop.org, devicetree@vger.kernel.org
Cc:     linux-kernel@vger.kernel.org, robdclark@gmail.com,
        dianders@chromium.org, swboyd@chromium.org,
        quic_kalyant@quicinc.com, quic_khsieh@quicinc.com,
        quic_vproddut@quicinc.com, quic_bjorande@quicinc.com,
        quic_abhinavk@quicinc.com, quic_sbillaka@quicinc.com
References: <1675091494-13988-1-git-send-email-quic_vpolimer@quicinc.com>
From:   Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
In-Reply-To: <1675091494-13988-1-git-send-email-quic_vpolimer@quicinc.com>
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On 30/01/2023 17:11, Vinod Polimera wrote:
> Changes in v2:
>    - Use dp bridge to set psr entry/exit instead of dpu_enocder.
>    - Don't modify whitespaces.
>    - Set self refresh aware from atomic_check.
>    - Set self refresh aware only if psr is supported.
>    - Provide a stub for msm_dp_display_set_psr.
>    - Move dp functions to bridge code.
> 
> Changes in v3:
>    - Change callback names to reflect atomic interfaces.
>    - Move bridge callback change to separate patch as suggested by Dmitry.
>    - Remove psr function declaration from msm_drv.h.
>    - Set self_refresh_aware flag only if psr is supported.
>    - Modify the variable names to simpler form.
>    - Define bit fields for PSR settings.
>    - Add comments explaining the steps to enter/exit psr.
>    - Change DRM_INFO to drm_dbg_db.
> 
> Changes in v4:
>    - Move the get crtc functions to drm_atomic.
>    - Add atomic functions for DP bridge too.
>    - Add ternary operator to choose eDP or DP ops.
>    - Return true/false instead of 1/0.
>    - mode_valid missing in the eDP bridge ops.
>    - Move the functions to get crtc into drm_atomic.c.
>    - Fix compilation issues.
>    - Remove dpu_assign_crtc and get crtc from drm_enc instead of dpu_enc.
>    - Check for crtc state enable while reserving resources.
> 
> Changes in v5:
>    - Move the mode_valid changes into a different patch.
>    - Complete psr_op_comp only when isr is set.
>    - Move the DP atomic callback changes to a different patch.
>    - Get crtc from drm connector state crtc.
>    - Move to separate patch for check for crtc state enable while
> reserving resources.
> 
> Changes in v6:
>    - Remove crtc from dpu_encoder_virt struct.
>    - fix crtc check during vblank toggle crtc.
>    - Misc changes.
> 
> Changes in v7:
>    - Add fix for underrun issue on kasan build.
> 
> Changes in v8:
>    - Drop the enc spinlock as it won't serve any purpose in
> protetcing conn state.(Dmitry/Doug)
> 
> Changes in v9:
>    - Update commit message and fix alignment using spaces.(Marijn)
>    - Misc changes.(Marijn)
> 
> Changes in v10:
>    - Get crtc cached in dpu_enc during obj init.(Dmitry)
> 
> Changes in v11:
>    - Remove crtc cached in dpu_enc during obj init.
>    - Update dpu_enc crtc state on crtc enable/disable during self refresh.
> 
> Changes in v12:
>    - Update sc7180 intf mask to get intf timing gen status
> based on DPU_INTF_STATUS_SUPPORTED bit.(Dmitry)
>    - Remove "clear active interface in the datapath cleanup" change
> as it is already included.
>    - Move core changes to top of the series.(Dmitry)

Unfortunately they still are not at the top.

> 
> Sankeerth Billakanti (1):
>    drm/msm/dp: disable self_refresh_aware after entering psr
> 
> Vinod Polimera (13):
>    drm/msm/disp/dpu: check for crtc enable rather than crtc active to
>      release shared resources
>    drm/msm/disp/dpu: get timing engine status from intf status register
>    drm/msm/disp/dpu: wait for extra vsync till timing engine status is
>      disabled
>    drm/msm/disp/dpu: reset the datapath after timing engine disable
>    drm: add helper functions to retrieve old and new crtc
>    drm/msm/dp: use atomic callbacks for DP bridge ops
>    drm/msm/dp: Add basic PSR support for eDP
>    drm/msm/dp: use the eDP bridge ops to validate eDP modes
>    drm/bridge: use atomic enable/disable callbacks for panel bridge
>    drm/bridge: add psr support for panel bridge callbacks
>    drm/msm/disp/dpu: use atomic enable/disable callbacks for encoder
>      functions
>    drm/msm/disp/dpu: add PSR support for eDP interface in dpu driver
>    drm/msm/disp/dpu: update dpu_enc crtc state on crtc enable/disable
>      during self refresh
> 
>   drivers/gpu/drm/bridge/panel.c                     |  68 +++++++-
>   drivers/gpu/drm/drm_atomic.c                       |  60 +++++++
>   drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c           |  40 ++++-
>   drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c        |  26 ++-
>   .../gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c   |  22 +++
>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c     |   6 +-
>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h     |  12 +-
>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c        |   8 +-
>   drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c            |   2 +-
>   drivers/gpu/drm/msm/dp/dp_catalog.c                |  80 +++++++++
>   drivers/gpu/drm/msm/dp/dp_catalog.h                |   4 +
>   drivers/gpu/drm/msm/dp/dp_ctrl.c                   |  80 +++++++++
>   drivers/gpu/drm/msm/dp/dp_ctrl.h                   |   3 +
>   drivers/gpu/drm/msm/dp/dp_display.c                |  36 ++--
>   drivers/gpu/drm/msm/dp/dp_display.h                |   2 +
>   drivers/gpu/drm/msm/dp/dp_drm.c                    | 194 ++++++++++++++++++++-
>   drivers/gpu/drm/msm/dp/dp_drm.h                    |   9 +-
>   drivers/gpu/drm/msm/dp/dp_link.c                   |  36 ++++
>   drivers/gpu/drm/msm/dp/dp_panel.c                  |  22 +++
>   drivers/gpu/drm/msm/dp/dp_panel.h                  |   6 +
>   drivers/gpu/drm/msm/dp/dp_reg.h                    |  27 +++
>   include/drm/drm_atomic.h                           |   7 +
>   22 files changed, 706 insertions(+), 44 deletions(-)
> 

-- 
With best wishes
Dmitry