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| author | Miaoqian Lin <linmq006@gmail.com> | 2022-04-20 21:50:07 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-27 13:53:56 +0200 |
| commit | 0a2cef65b32919af7df4df979c5eede5f7825f17 (patch) | |
| tree | b2f5f391646f12566ad8b6aac2926e35e5324c17 /drivers | |
| parent | f8f8b3124b899867a18a3f63e538c791e21252ac (diff) | |
| download | linux-0a2cef65b32919af7df4df979c5eede5f7825f17.tar.gz linux-0a2cef65b32919af7df4df979c5eede5f7825f17.tar.bz2 linux-0a2cef65b32919af7df4df979c5eede5f7825f17.zip | |
drm/vc4: Use pm_runtime_resume_and_get to fix pm_runtime_get_sync() usage
[ Upstream commit 3d0b93d92a2790337aa9d18cb332d02356a24126 ]
If the device is already in a runtime PM enabled state
pm_runtime_get_sync() will return 1.
Also, we need to call pm_runtime_put_noidle() when pm_runtime_get_sync()
fails, so use pm_runtime_resume_and_get() instead. this function
will handle this.
Fixes: 4078f5757144 ("drm/vc4: Add DSI driver")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220420135008.2757-1-linmq006@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_dsi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_dsi.c b/drivers/gpu/drm/vc4/vc4_dsi.c index eaf276978ee7..ad84b56f4091 100644 --- a/drivers/gpu/drm/vc4/vc4_dsi.c +++ b/drivers/gpu/drm/vc4/vc4_dsi.c @@ -835,7 +835,7 @@ static void vc4_dsi_encoder_enable(struct drm_encoder *encoder) unsigned long phy_clock; int ret; - ret = pm_runtime_get_sync(dev); + ret = pm_runtime_resume_and_get(dev); if (ret) { DRM_ERROR("Failed to runtime PM enable on DSI%d\n", dsi->port); return; |