[PATCH 13/23] drm: omapdrm: crtc: update plane fifos on lcd config change

Sebastian Reichel
2016-03-08T16:52:35Z

Due to a hardware bug, FIFOs thresholds must be
configured very carefully for manually updated
displays.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
---
drivers/gpu/drm/omapdrm/omap_crtc.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c
index 8967013c1fb5..094e89a2fa94 100644
--- a/drivers/gpu/drm/omapdrm/omap_crtc.c
+++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
@@ -253,6 +253,10 @@ static void omap_crtc_dss_set_lcd_config(struct omap_overlay_manager *mgr,
omap_crtc->manually_updated = dss_lcd_mgr_config_get_stallmode(config);

dispc_mgr_set_lcd_config(omap_crtc->channel, config);
+
+ drm_for_each_plane(plane, dev) {
+ omap_plane_update_fifo(plane);
+ }
}

static int omap_crtc_dss_register_framedone(
--
2.7.0