From: Lucas Stach <dev@lynxeye.de>
Date: Wed, 19 Dec 2012 21:38:57 +0000 (+0000)
Subject: drm: tegra: program only one window during modeset
X-Git-Tag: v3.8-rc2~13^2~1
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=500df2e5d870ef5be3d37f0798f770028b69fd47;p=users%2Fhch%2Fblock.git

drm: tegra: program only one window during modeset

The intention is to program exactly WIN_A, not WIN_A and possibly
others.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index b256574409e7..3475bd9f9719 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -223,8 +223,7 @@ static int tegra_crtc_mode_set(struct drm_crtc *crtc,
 	win.stride = crtc->fb->pitches[0];
 
 	/* program window registers */
-	value = tegra_dc_readl(dc, DC_CMD_DISPLAY_WINDOW_HEADER);
-	value |= WINDOW_A_SELECT;
+	value = WINDOW_A_SELECT;
 	tegra_dc_writel(dc, value, DC_CMD_DISPLAY_WINDOW_HEADER);
 
 	tegra_dc_writel(dc, win.fmt, DC_WIN_COLOR_DEPTH);