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drm/amd/amdgpu/amdgpu_drv.c: Replace drm_modeset_lock_all with drm_modeset_lock

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drm_modeset_lock_all() is not needed here, so it is replaced with
drm_modeset_lock(). The crtc list around which we are looping never
changes, therefore the only lock we need is to protect access to
crtc->state.

Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Fabio M. De Francesco 2021-04-27 11:44:49 +02:00 committed by Alex Deucher
parent 2b24c19938
commit fb63726523
1 changed files with 4 additions and 6 deletions
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10
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
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@ -1599,17 +1599,15 @@ static int amdgpu_pmops_runtime_idle(struct device *dev)
if (amdgpu_device_has_dc_support(adev)) {
struct drm_crtc *crtc;
drm_modeset_lock_all(drm_dev);
drm_for_each_crtc(crtc, drm_dev) {
if (crtc->state->active) {
drm_modeset_lock(&crtc->mutex, NULL);
if (crtc->state->active)
ret = -EBUSY;
drm_modeset_unlock(&crtc->mutex);
if (ret < 0)
break;
}
}
drm_modeset_unlock_all(drm_dev);
} else {
struct drm_connector *list_connector;
struct drm_connector_list_iter iter;