Commit ce35299e authored by Kieran Bingham's avatar Kieran Bingham Committed by Laurent Pinchart
Browse files

drm: rcar-du: Only initialise TVM_TVSYNC mode when supported 



The R-Car DU as found on the D3, E3, and V3U do not have support
for an external synchronisation method.

In these cases, the dsysr cached register should not be initialised
in DSYSR_TVM_TVSYNC, but instead should be left clear to configure as
DSYSR_TVM_MASTER by default.

Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarKieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
parent 34176f4b

drivers/gpu/drm/rcar-du/rcar_du_crtc.c

+4 −1
Original line number Diff line number Diff line
@@ -1243,7 +1243,10 @@ int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int swindex, 
	rcrtc->group = rgrp;

	rcrtc->mmio_offset = mmio_offsets[hwindex];

	rcrtc->index = hwindex;

	rcrtc->dsysr = (rcrtc->index % 2 ? 0 : DSYSR_DRES) | DSYSR_TVM_TVSYNC;

	rcrtc->dsysr = rcrtc->index % 2 ? 0 : DSYSR_DRES;



	if (rcar_du_has(rcdu, RCAR_DU_FEATURE_TVM_SYNC))

		rcrtc->dsysr |= DSYSR_TVM_TVSYNC;



	if (rcar_du_has(rcdu, RCAR_DU_FEATURE_VSP1_SOURCE))

		primary = &rcrtc->vsp->planes[rcrtc->vsp_pipe].plane;