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drm/vc4: Use pm_runtime_resume_and_get to fix pm_runtime_get_sync() usage

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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: 4078f57571 ("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
This commit is contained in:
Miaoqian Lin 2022-04-20 21:50:07 +08:00 committed by Maxime Ripard
parent 298799a282
commit 3d0b93d92a
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GPG Key ID: E3EF0D6F671851C5
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/vc4/vc4_dsi.c
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@ -846,7 +846,7 @@ 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->variant->port);
return;