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authorArchit Taneja <architt@codeaurora.org>2017-10-06 16:27:06 +0530
committerRob Clark <robdclark@gmail.com>2017-10-12 12:59:46 -0400
commita18a0ea0096833ecb52053b183fcf9709f7bafd8 (patch)
tree5804f0ebbd69fb338679ca2c78cc18fc23d5e88a /mm
parentc9811d0fa55929b182f62e0ee49b71b0bea6a936 (diff)
drm/msm/dsi: Use correct pm_runtime_put variant during host_init
The DSI runtime PM suspend/resume callbacks check whether msm_host->cfg_hnd is non-NULL before trying to enable the bus clocks. This is done to accommodate early calls to these functions that may happen before the bus clocks are even initialized. Calling pm_runtime_put_autosuspend() in dsi_host_init() can result in racy behaviour since msm_host->cfg_hnd is set very soon after. If the suspend callback happens too late, we end up trying to disable clocks that were never enabled, resulting in a bunch of WARN_ON splats. Use pm_runtime_put_sync() so that the suspend callback is called immediately. Reported-by: Nicolas Dechesne <nicolas.dechesne@linaro.org> Signed-off-by: Archit Taneja <architt@codeaurora.org> Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions