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Commit 2678aeba authored by Thierry Reding's avatar Thierry Reding Committed by Thierry Reding
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drm/tegra: Don't disable unused planes 



When a plane isn't in use it isn't attached to a CRTC and therefore the
DC registers aren't available for programming.

Signed-off-by: default avatarThierry Reding <thierry.reding@avionic-design.de>
parent c7788792

drivers/gpu/host1x/drm/dc.c

+3 −0
Original line number Diff line number Diff line
@@ -79,6 +79,9 @@ static int tegra_plane_disable(struct drm_plane *plane) 
	struct tegra_plane *p = to_tegra_plane(plane);

	unsigned long value;



	if (!plane->crtc)

		return 0;



	value = WINDOW_A_SELECT << p->index;

	tegra_dc_writel(dc, value, DC_CMD_DISPLAY_WINDOW_HEADER);