From: Jyri Sarha <jsarha@ti.com>
Date: Mon, 29 May 2017 22:06:26 +0300
Subject: drm/tilcdc: Remove WARN_ON(!drm_modeset_is_locked(&crtc->mutex))
 checks
Git-commit: 125fcc19dad5a0ac9d3f2e4ceb7827951d31ccc7
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Remove WARN_ON(!drm_modeset_is_locked(&crtc->mutex)) checks from
tilcdc_crtc_enable(), tilcdc_crtc_disable(), and
tilcdc_crtc_update_fb().

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/tilcdc/tilcdc_crtc.c |    4 ----
 1 file changed, 4 deletions(-)

--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -467,7 +467,6 @@ static void tilcdc_crtc_enable(struct dr
 	struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
 	unsigned long flags;
 
-	WARN_ON(!drm_modeset_is_locked(&crtc->mutex));
 	mutex_lock(&tilcdc_crtc->enable_lock);
 	if (tilcdc_crtc->enabled || tilcdc_crtc->shutdown) {
 		mutex_unlock(&tilcdc_crtc->enable_lock);
@@ -564,7 +563,6 @@ static void tilcdc_crtc_off(struct drm_c
 
 static void tilcdc_crtc_disable(struct drm_crtc *crtc)
 {
-	WARN_ON(!drm_modeset_is_locked(&crtc->mutex));
 	tilcdc_crtc_off(crtc, false);
 }
 
@@ -626,8 +624,6 @@ int tilcdc_crtc_update_fb(struct drm_crt
 	struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
 	struct drm_device *dev = crtc->dev;
 
-	WARN_ON(!drm_modeset_is_locked(&crtc->mutex));
-
 	if (tilcdc_crtc->event) {
 		dev_err(dev->dev, "already pending page flip!\n");
 		return -EBUSY;