1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * rcar_du_group.c -- 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 17 struct 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 * @num_crtcs: number of CRTCs in this group (1 or 2) 26 * @use_count: number of users of the group (rcar_du_group_(get|put)) 27 * @used_crtcs: number of CRTCs currently in use 28 * @lock: protects the dptsr_planes field and the DPTSR register 29 * @dptsr_planes: bitmask of planes driven by dot-clock and timing generator 1 30 * @num_planes: number of planes in the group 31 * @planes: planes handled by the group 32 * @need_restart: the group needs to be restarted due to a configuration change 33 */ 34 struct rcar_du_group { 35 struct rcar_du_device *dev; 36 unsigned int mmio_offset; 37 unsigned int index; 38 39 unsigned int channels_mask; 40 unsigned int num_crtcs; 41 unsigned int use_count; 42 unsigned int used_crtcs; 43 44 struct mutex lock; 45 unsigned int dptsr_planes; 46 47 unsigned int num_planes; 48 struct rcar_du_plane planes[RCAR_DU_NUM_KMS_PLANES]; 49 bool need_restart; 50 }; 51 52 u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg); 53 void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data); 54 55 int rcar_du_group_get(struct rcar_du_group *rgrp); 56 void rcar_du_group_put(struct rcar_du_group *rgrp); 57 void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start); 58 void rcar_du_group_restart(struct rcar_du_group *rgrp); 59 int rcar_du_group_set_routing(struct rcar_du_group *rgrp); 60 61 int rcar_du_set_dpad0_vsp1_routing(struct rcar_du_device *rcdu); 62 63 #endif /* __RCAR_DU_GROUP_H__ */ 64