diff options
Diffstat (limited to 'drivers/gpu/drm/renesas/rcar-du/rcar_du_group.h')
| -rw-r--r-- | drivers/gpu/drm/renesas/rcar-du/rcar_du_group.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_group.h b/drivers/gpu/drm/renesas/rcar-du/rcar_du_group.h new file mode 100644 index 000000000000..55649ad86a10 --- /dev/null +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_group.h @@ -0,0 +1,65 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * R-Car Display Unit Planes and CRTCs Group + * + * Copyright (C) 2013-2014 Renesas Electronics Corporation + * + * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) + */ + +#ifndef __RCAR_DU_GROUP_H__ +#define __RCAR_DU_GROUP_H__ + +#include <linux/mutex.h> + +#include "rcar_du_plane.h" + +struct rcar_du_device; + +/* + * struct rcar_du_group - CRTCs and planes group + * @dev: the DU device + * @mmio_offset: registers offset in the device memory map + * @index: group index + * @channels_mask: bitmask of populated DU channels in this group + * @cmms_mask: bitmask of available CMMs in this group + * @num_crtcs: number of CRTCs in this group (1 or 2) + * @use_count: number of users of the group (rcar_du_group_(get|put)) + * @used_crtcs: number of CRTCs currently in use + * @lock: protects the dptsr_planes field and the DPTSR register + * @dptsr_planes: bitmask of planes driven by dot-clock and timing generator 1 + * @num_planes: number of planes in the group + * @planes: planes handled by the group + * @need_restart: the group needs to be restarted due to a configuration change + */ +struct rcar_du_group { + struct rcar_du_device *dev; + unsigned int mmio_offset; + unsigned int index; + + unsigned int channels_mask; + unsigned int cmms_mask; + unsigned int num_crtcs; + unsigned int use_count; + unsigned int used_crtcs; + + struct mutex lock; + unsigned int dptsr_planes; + + unsigned int num_planes; + struct rcar_du_plane planes[RCAR_DU_NUM_KMS_PLANES]; + bool need_restart; +}; + +u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg); +void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data); + +int rcar_du_group_get(struct rcar_du_group *rgrp); +void rcar_du_group_put(struct rcar_du_group *rgrp); +void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start); +void rcar_du_group_restart(struct rcar_du_group *rgrp); +int rcar_du_group_set_routing(struct rcar_du_group *rgrp); + +int rcar_du_set_dpad0_vsp1_routing(struct rcar_du_device *rcdu); + +#endif /* __RCAR_DU_GROUP_H__ */ |