From: Dave Airlie <airlied@redhat.com>
Date: Fri, 21 Oct 2016 03:26:15 +0000 (+1000)
Subject: Merge branch 'drm-armada-fixes' of git://git.armlinux.org.uk/~rmk/linux-arm into... 
X-Git-Tag: v4.9-rc2~18^2~2
X-Git-Url: http://git.cascardo.eti.br/?a=commitdiff_plain;h=e947f03d9367d8fdce1054c7df2387662a9daa50;hp=961050d7284e5a17a6e13b3f7341696a99cae607;p=cascardo%2Flinux.git

Merge branch 'drm-armada-fixes' of git://git.armlinux.org.uk/~rmk/linux-arm into drm-fixes

One small fix for Armada, where the clock prepare/enable counts were
going awry.

* 'drm-armada-fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
  drm/armada: fix clock counts
---

diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c
index 2f58e9e2a59c..a51f8cbcfe26 100644
--- a/drivers/gpu/drm/armada/armada_crtc.c
+++ b/drivers/gpu/drm/armada/armada_crtc.c
@@ -332,17 +332,19 @@ static void armada_drm_crtc_dpms(struct drm_crtc *crtc, int dpms)
 {
 	struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
 
-	if (dcrtc->dpms != dpms) {
-		dcrtc->dpms = dpms;
-		if (!IS_ERR(dcrtc->clk) && !dpms_blanked(dpms))
-			WARN_ON(clk_prepare_enable(dcrtc->clk));
-		armada_drm_crtc_update(dcrtc);
-		if (!IS_ERR(dcrtc->clk) && dpms_blanked(dpms))
-			clk_disable_unprepare(dcrtc->clk);
+	if (dpms_blanked(dcrtc->dpms) != dpms_blanked(dpms)) {
 		if (dpms_blanked(dpms))
 			armada_drm_vblank_off(dcrtc);
-		else
+		else if (!IS_ERR(dcrtc->clk))
+			WARN_ON(clk_prepare_enable(dcrtc->clk));
+		dcrtc->dpms = dpms;
+		armada_drm_crtc_update(dcrtc);
+		if (!dpms_blanked(dpms))
 			drm_crtc_vblank_on(&dcrtc->crtc);
+		else if (!IS_ERR(dcrtc->clk))
+			clk_disable_unprepare(dcrtc->clk);
+	} else if (dcrtc->dpms != dpms) {
+		dcrtc->dpms = dpms;
 	}
 }