2 * rcar_du_group.c -- R-Car Display Unit Planes and CRTCs Group
4 * Copyright (C) 2013-2014 Renesas Electronics Corporation
6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
14 #ifndef __RCAR_DU_GROUP_H__
15 #define __RCAR_DU_GROUP_H__
17 #include <linux/mutex.h>
19 #include "rcar_du_plane.h"
21 struct rcar_du_device;
24 * struct rcar_du_group - CRTCs and planes group
26 * @mmio_offset: registers offset in the device memory map
28 * @use_count: number of users of the group (rcar_du_group_(get|put))
29 * @used_crtcs: number of CRTCs currently in use
30 * @lock: protects the DPTSR register
31 * @planes: planes handled by the group
33 struct rcar_du_group {
34 struct rcar_du_device *dev;
35 unsigned int mmio_offset;
38 unsigned int use_count;
39 unsigned int used_crtcs;
43 struct rcar_du_planes planes;
46 u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg);
47 void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data);
49 int rcar_du_group_get(struct rcar_du_group *rgrp);
50 void rcar_du_group_put(struct rcar_du_group *rgrp);
51 void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start);
52 void rcar_du_group_restart(struct rcar_du_group *rgrp);
53 int rcar_du_group_set_routing(struct rcar_du_group *rgrp);
55 #endif /* __RCAR_DU_GROUP_H__ */