[PATCH 2/4] drm/msm/dp: remove redundant ST_DISPLAY_OFF checks in msm_dp_bridge_atomic_enable()

[Abhinav Kumar]

The checks in msm_dp_display_prepare() for making sure that we are in
ST_DISPLAY_OFF OR ST_MAINLINK_READY seem redundant.

DRM fwk shall not issue any commits if state is not ST_MAINLINK_READY as
msm_dp's atomic_check callback returns a failure if state is not ST_MAINLINK_READY.

For the ST_DISPLAY_OFF check, its mainly to guard against a scenario that
there is an atomic_enable() without a prior atomic_disable() which once again
should not really happen.

To simplify the code, get rid of these checks.

Signed-off-by: Abhinav Kumar <quic_abhinavk at quicinc.com>
---
 drivers/gpu/drm/msm/dp/dp_display.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index 992184cc17e4..614fff09e5f2 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -1513,12 +1513,6 @@ void msm_dp_bridge_atomic_enable(struct drm_bridge *drm_bridge,
 		return;
 	}
 
-	state = msm_dp_display->hpd_state;
-	if (state != ST_DISPLAY_OFF && state != ST_MAINLINK_READY) {
-		mutex_unlock(&msm_dp_display->event_mutex);
-		return;
-	}
-
 	rc = msm_dp_display_set_mode(dp, &msm_dp_display->msm_dp_mode);
 	if (rc) {
 		DRM_ERROR("Failed to perform a mode set, rc=%d\n", rc);

-- 
2.34.1