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 <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
chewitt · Dec 30, 2012 · 500df2e · 500df2e
1 parent e39250a
commit 500df2e
Showing 1 changed file with 1 addition and 2 deletions.
diff --git 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);