omap_plane_atomic_update() calls dispc_ovl_setup(), which can fail (but
shouldn't). To make the code a bit more robust, make sure the plane gets
disabled if dispc_ovl_setup() fails, as otherwise we might get illegal
HW configuration leading to error interrupts.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
---
drivers/gpu/drm/omapdrm/omap_plane.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/omapdrm/omap_plane.c b/drivers/gpu/drm/omapdrm/omap_plane.c
index b13fb2fd4a9a..cfa8276c4deb 100644
--- a/drivers/gpu/drm/omapdrm/omap_plane.c
+++ b/drivers/gpu/drm/omapdrm/omap_plane.c
@@ -132,8 +132,10 @@ static void omap_plane_atomic_update(struct drm_plane *plane,
/* and finally, update omapdss: */
ret = dispc_ovl_setup(omap_plane->id, &info, false,
omap_crtc_timings(state->crtc), false);
- if (WARN_ON(ret))
+ if (WARN_ON(ret)) {
+ dispc_ovl_enable(omap_plane->id, false);
return;
+ }
dispc_ovl_enable(omap_plane->id, true);
}
--
2.1.4
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