From eb40e2f448126b97433f1869e46105f3ebc9f8cb Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Tue, 15 Dec 2020 12:46:42 +0200 Subject: [PATCH] drm/omap: dsi: enable HS before sending the frame We currently use a single VC for sending commands and pixel data. The LP/HS mode for pixel data is correctly set to HS by accident, as we have set the VC to HS already earlier. However, if we use a different VC for video data, the VC is in LP mode. Fix this by always enabling HS mode before starting a frame update. Signed-off-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart Reviewed-by: Sebastian Reichel Link: https://patchwork.freedesktop.org/patch/msgid/20201215104657.802264-70-tomi.valkeinen@ti.com --- drivers/gpu/drm/omapdrm/dss/dsi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c index 6d97ca0..fb21b32 100644 --- a/drivers/gpu/drm/omapdrm/dss/dsi.c +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c @@ -3915,6 +3915,8 @@ static int dsi_update_channel(struct omap_dss_device *dssdev, int vc) dsi_set_ulps_auto(dsi, false); + dsi_vc_enable_hs(dssdev, vc, true); + /* * Send NOP between the frames. If we don't send something here, the * updates stop working. This is probably related to DSI spec stating -- 2.7.4