linux-kernel - Re: [PATCH v5 00/10] Add PSR support for eDP

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Message-ID: <9005c10b-01a6-b463-d150-1935e79f92eb@linaro.org>
Date:   Mon, 11 Jul 2022 13:07:54 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Vinod Polimera <quic_vpolimer@...cinc.com>,
        dri-devel@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, robdclark@...il.com,
        dianders@...omium.org, swboyd@...omium.org,
        quic_kalyant@...cinc.com, quic_khsieh@...cinc.com,
        quic_vproddut@...cinc.com, bjorn.andersson@...aro.org,
        quic_aravindh@...cinc.com, quic_abhinavk@...cinc.com,
        quic_sbillaka@...cinc.com
Subject: Re: [PATCH v5 00/10] Add PSR support for eDP

On 11/07/2022 12:47, 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.
> 
> Signed-off-by: Sankeerth Billakanti <quic_sbillaka@...cinc.com>
> Signed-off-by: Kalyan Thota <quic_kalyant@...cinc.com>
> Signed-off-by: Vinod Polimera <quic_vpolimer@...cinc.com>
> 
> Vinod Polimera (10):
>    drm/msm/disp/dpu1: clear dpu_assign_crtc and get crtc from connector
>      state instead of dpu_enc

Generic comment: please use 'drm/msm/dpu:' prefix instead.

>    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/dpu1: use atomic enable/disable callbacks for encoder
>      functions
>    drm/msm/disp/dpu1: add PSR support for eDP interface in dpu driver
>    drm/msm/disp/dpu1: check for crtc enable rather than crtc active to
>      release shared resources
> 
>   drivers/gpu/drm/bridge/panel.c              |  68 ++++++++--
>   drivers/gpu/drm/drm_atomic.c                |  60 +++++++++
>   drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c    |  17 ++-
>   drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c |  55 +++++---
>   drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h |   8 --
>   drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c     |   2 +-
>   drivers/gpu/drm/msm/dp/dp_catalog.c         |  81 ++++++++++++
>   drivers/gpu/drm/msm/dp/dp_catalog.h         |   4 +
>   drivers/gpu/drm/msm/dp/dp_ctrl.c            |  73 +++++++++++
>   drivers/gpu/drm/msm/dp/dp_ctrl.h            |   3 +
>   drivers/gpu/drm/msm/dp/dp_display.c         |  31 +++--
>   drivers/gpu/drm/msm/dp/dp_display.h         |   2 +
>   drivers/gpu/drm/msm/dp/dp_drm.c             | 187 ++++++++++++++++++++++++++--
>   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 ++
>   19 files changed, 634 insertions(+), 64 deletions(-)
> 


-- 
With best wishes
Dmitry