1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * R-Car Display Unit Planes and CRTCs Group
5 * Copyright (C) 2013-2014 Renesas Electronics Corporation
7 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
10 #ifndef __RCAR_DU_GROUP_H__
11 #define __RCAR_DU_GROUP_H__
13 #include <linux/mutex.h>
15 #include "rcar_du_plane.h"
17 struct rcar_du_device;
20 * struct rcar_du_group - CRTCs and planes group
22 * @mmio_offset: registers offset in the device memory map
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
35 struct rcar_du_group {
36 struct rcar_du_device *dev;
37 unsigned int mmio_offset;
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;
47 unsigned int dptsr_planes;
49 unsigned int num_planes;
50 struct rcar_du_plane planes[RCAR_DU_NUM_KMS_PLANES];
54 u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg);
55 void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data);
57 int rcar_du_group_get(struct rcar_du_group *rgrp);
58 void rcar_du_group_put(struct rcar_du_group *rgrp);
59 void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start);
60 void rcar_du_group_restart(struct rcar_du_group *rgrp);
61 int rcar_du_group_set_routing(struct rcar_du_group *rgrp);
63 int rcar_du_set_dpad0_vsp1_routing(struct rcar_du_device *rcdu);
65 #endif /* __RCAR_DU_GROUP_H__ */