linux-kernel - [PATCH 0/4] drm/msm/adreno: fix runtime PM imbalance at unbind

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Message-Id: <20230221101430.14546-1-johan+linaro@kernel.org>
Date:   Tue, 21 Feb 2023 11:14:26 +0100
From:   Johan Hovold <johan+linaro@...nel.org>
To:     Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc:     Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Bjorn Andersson <andersson@...nel.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Johan Hovold <johan+linaro@...nel.org>
Subject: [PATCH 0/4] drm/msm/adreno: fix runtime PM imbalance at unbind

As reported by Bjorn, we can end up with an unbalanced runtime PM
disable count if unbind() is called before the drm device is opened
(e.g. if component bind fails due to the panel driver not having been
loaded yet).

As runtime PM must currently stay disabled until the firmware has been
loaded, fix this by making the runtime PM disable call at unbind()
conditional.

The rest of the series removes a bogus pm_runtime_set_active() call and
drops the redundant pm_runtime_disable() from adreno_gpu_cleanup().
Included is also a related indentation cleanup.

Johan

Johan Hovold (4):
  drm/msm/adreno: fix runtime PM imbalance at unbind
  drm/msm/adreno: drop bogus pm_runtime_set_active()
  drm/msm/adreno: drop redundant pm_runtime_disable()
  drm/msm/adreno: clean up component ops indentation

 drivers/gpu/drm/msm/adreno/adreno_device.c | 10 ++++------
 drivers/gpu/drm/msm/adreno/adreno_gpu.c    |  5 -----
 2 files changed, 4 insertions(+), 11 deletions(-)

-- 
2.39.2