Handle the vblank events in the simple_kms_helper driver, otherwise
the drm_atomic_helper flip_done event never happens.
Signed-off-by: Marek Vasut <marex@xxxxxxx>
Cc: Noralf Trønnes <noralf@xxxxxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
---
drivers/gpu/drm/drm_simple_kms_helper.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/gpu/drm/drm_simple_kms_helper.c b/drivers/gpu/drm/drm_simple_kms_helper.c
index 7b6d26e..3345b40 100644
--- a/drivers/gpu/drm/drm_simple_kms_helper.c
+++ b/drivers/gpu/drm/drm_simple_kms_helper.c
@@ -34,6 +34,23 @@ static const struct drm_encoder_funcs drm_simple_kms_encoder_funcs = {
.destroy = drm_encoder_cleanup,
};
+static void drm_simple_kms_crtc_begin(struct drm_crtc *crtc,
+ struct drm_crtc_state *state)
+{
+ struct drm_pending_vblank_event *event = crtc->state->event;
+
+ if (event) {
+ crtc->state->event = NULL;
+
+ spin_lock_irq(&crtc->dev->event_lock);
+ if (drm_crtc_vblank_get(crtc) == 0)
+ drm_crtc_arm_vblank_event(crtc, event);
+ else
+ drm_crtc_send_vblank_event(crtc, event);
+ spin_unlock_irq(&crtc->dev->event_lock);
+ }
+}
+
static int drm_simple_kms_crtc_check(struct drm_crtc *crtc,
struct drm_crtc_state *state)
{
@@ -63,6 +80,7 @@ static void drm_simple_kms_crtc_disable(struct drm_crtc *crtc)
}
static const struct drm_crtc_helper_funcs drm_simple_kms_crtc_helper_funcs = {
+ .atomic_begin = drm_simple_kms_crtc_begin,
.atomic_check = drm_simple_kms_crtc_check,
.disable = drm_simple_kms_crtc_disable,
.enable = drm_simple_kms_crtc_enable,
--
2.9.3
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel
