linux-kernel - [PATCH 0/3] drm/msm/dp: Simplify aux code

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Date:   Fri,  7 May 2021 14:25:02 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Rob Clark <robdclark@...il.com>
Cc:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Abhinav Kumar <abhinavk@...eaurora.org>,
        Kuogee Hsieh <khsieh@...eaurora.org>, aravindh@...eaurora.org,
        Sean Paul <sean@...rly.run>
Subject: [PATCH 0/3] drm/msm/dp: Simplify aux code

Here's a few patches that simplify the aux handling code and bubble up
timeouts and nacks to the upper DRM layers. The goal is to get DRM to
know that the other side isn't there or that there's been a timeout,
instead of saying that everything is fine and putting some error message
into the logs.

Cc: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: Abhinav Kumar <abhinavk@...eaurora.org>
Cc: Kuogee Hsieh <khsieh@...eaurora.org>
Cc: aravindh@...eaurora.org
Cc: Sean Paul <sean@...rly.run>

Stephen Boyd (3):
  drm/msm/dp: Simplify aux irq handling code
  drm/msm/dp: Shrink locking area of dp_aux_transfer()
  drm/msm/dp: Handle aux timeouts, nacks, defers

 drivers/gpu/drm/msm/dp/dp_aux.c     | 181 ++++++++++++----------------
 drivers/gpu/drm/msm/dp/dp_aux.h     |   8 --
 drivers/gpu/drm/msm/dp/dp_catalog.c |   2 +-
 drivers/gpu/drm/msm/dp/dp_catalog.h |   2 +-
 4 files changed, 80 insertions(+), 113 deletions(-)


base-commit: 51595e3b4943b0079638b2657f603cf5c8ea3a66
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