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 b256574..3475bd9 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -223,8 +223,7 @@
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);