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1/* SPDX-License-Identifier: GPL-2.0+ */2/*3 * R-Car Display Unit Planes and CRTCs Group4 *5 * Copyright (C) 2013-2014 Renesas Electronics Corporation6 *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 group21 * @dev: the DU device22 * @mmio_offset: registers offset in the device memory map23 * @index: group index24 * @channels_mask: bitmask of populated DU channels in this group25 * @cmms_mask: bitmask of available CMMs in this group26 * @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 use29 * @lock: protects the dptsr_planes field and the DPTSR register30 * @dptsr_planes: bitmask of planes driven by dot-clock and timing generator 131 * @num_planes: number of planes in the group32 * @planes: planes handled by the group33 * @need_restart: the group needs to be restarted due to a configuration change34 */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