1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * R-Car Display Unit Planes and CRTCs Group
4 *
5 * Copyright (C) 2013-2014 Renesas Electronics Corporation
6 *
7 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
8 */
9
10#ifndef __RCAR_DU_GROUP_H__
11#define __RCAR_DU_GROUP_H__
12
13#include <linux/mutex.h>
14
15#include "rcar_du_plane.h"
16
17struct rcar_du_device;
18
19/*
20 * struct rcar_du_group - CRTCs and planes group
21 * @dev: the DU device
22 * @mmio_offset: registers offset in the device memory map
23 * @index: group index
24 * @channels_mask: bitmask of populated DU channels in this group
25 * @cmms_mask: bitmask of available CMMs in this group
26 * @num_crtcs: number of CRTCs in this group (1 or 2)
27 * @use_count: number of users of the group (rcar_du_group_(get|put))
28 * @used_crtcs: number of CRTCs currently in use
29 * @lock: protects the dptsr_planes field and the DPTSR register
30 * @dptsr_planes: bitmask of planes driven by dot-clock and timing generator 1
31 * @num_planes: number of planes in the group
32 * @planes: planes handled by the group
33 * @need_restart: the group needs to be restarted due to a configuration change
34 */
35struct rcar_du_group {
36	struct rcar_du_device *dev;
37	unsigned int mmio_offset;
38	unsigned int index;
39
40	unsigned int channels_mask;
41	unsigned int cmms_mask;
42	unsigned int num_crtcs;
43	unsigned int use_count;
44	unsigned int used_crtcs;
45
46	struct mutex lock;
47	unsigned int dptsr_planes;
48
49	unsigned int num_planes;
50	struct rcar_du_plane planes[RCAR_DU_NUM_KMS_PLANES];
51	bool need_restart;
52};
53
54u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg);
55void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data);
56
57int rcar_du_group_get(struct rcar_du_group *rgrp);
58void rcar_du_group_put(struct rcar_du_group *rgrp);
59void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start);
60void rcar_du_group_restart(struct rcar_du_group *rgrp);
61int rcar_du_group_set_routing(struct rcar_du_group *rgrp);
62
63int rcar_du_set_dpad0_vsp1_routing(struct rcar_du_device *rcdu);
64
65#endif /* __RCAR_DU_GROUP_H__ */
66