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drm/exynos: remove wait queue for pending page flip 

Exynos atomic commit procedures already does this job of waiting for
pending updates to finish, that means using pending_flip_queue is
pointless now because the disable CRTC procedure will never happen
during a page_flip.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
hifive-unleashed-5.1
Gustavo Padovan 2015-08-15 13:26:19 -03:00 committed by Inki Dae
parent c4533665d8
commit 7cf23eaf0d
2 changed files with 1 additions and 11 deletions
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11
drivers/gpu/drm/exynos/exynos_drm_crtc.c
View File

@ -35,11 +35,6 @@ static void exynos_drm_crtc_disable(struct drm_crtc *crtc)
{
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
/* wait for the completion of page flip. */
if (!wait_event_timeout(exynos_crtc->pending_flip_queue,
(exynos_crtc->event == NULL), HZ/20))
exynos_crtc->event = NULL;
drm_crtc_vblank_off(crtc);
if (exynos_crtc->ops->disable)
@ -146,8 +141,6 @@ struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
if (!exynos_crtc)
return ERR_PTR(-ENOMEM);
init_waitqueue_head(&exynos_crtc->pending_flip_queue);
exynos_crtc->pipe = pipe;
exynos_crtc->type = type;
exynos_crtc->ops = ops;
@ -215,10 +208,8 @@ void exynos_drm_crtc_finish_update(struct exynos_drm_crtc *exynos_crtc,
wake_up(&exynos_crtc->wait_update);
spin_lock_irqsave(&crtc->dev->event_lock, flags);
if (exynos_crtc->event) {
if (exynos_crtc->event)
drm_crtc_send_vblank_event(crtc, exynos_crtc->event);
wake_up(&exynos_crtc->pending_flip_queue);
}
exynos_crtc->event = NULL;
spin_unlock_irqrestore(&crtc->dev->event_lock, flags);

1
drivers/gpu/drm/exynos/exynos_drm_drv.h
View File

@ -145,7 +145,6 @@ struct exynos_drm_crtc {
struct drm_crtc base;
enum exynos_drm_output_type type;
unsigned int pipe;
wait_queue_head_t pending_flip_queue;
struct drm_pending_vblank_event *event;
wait_queue_head_t wait_update;
atomic_t pending_update;