cb2025d250
The R8A7779 DU is split in per-CRTC resources (scan-out engine, blending unit, timings generator, ...) and device-global resources (start/stop control, planes, ...) shared between the two CRTCs. The R8A7790 introduced a third CRTC with its own set of global resources This would be modeled as two separate DU device instances if it wasn't for a handful or resources that are shared between the three CRTCs (mostly related to input and output routing). For this reason the R8A7790 DU must be modeled as a single device with three CRTCs, two sets of "semi-global" resources, and a few device-global resources. Introduce a new rcar_du_group driver-specific object, without any real counterpart in the DU documentation, that models those semi-global resources. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
/*
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* rcar_du_crtc.h -- R-Car Display Unit CRTCs
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*
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* Copyright (C) 2013 Renesas Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __RCAR_DU_CRTC_H__
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#define __RCAR_DU_CRTC_H__
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#include <linux/mutex.h>
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#include <drm/drmP.h>
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#include <drm/drm_crtc.h>
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struct rcar_du_group;
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struct rcar_du_plane;
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struct rcar_du_crtc {
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struct drm_crtc crtc;
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struct clk *clock;
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unsigned int mmio_offset;
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unsigned int index;
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bool started;
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struct drm_pending_vblank_event *event;
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unsigned int outputs;
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int dpms;
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struct rcar_du_group *group;
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struct rcar_du_plane *plane;
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};
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int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int index);
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void rcar_du_crtc_enable_vblank(struct rcar_du_crtc *rcrtc, bool enable);
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void rcar_du_crtc_cancel_page_flip(struct rcar_du_crtc *rcrtc,
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struct drm_file *file);
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void rcar_du_crtc_suspend(struct rcar_du_crtc *rcrtc);
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void rcar_du_crtc_resume(struct rcar_du_crtc *rcrtc);
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void rcar_du_crtc_route_output(struct drm_crtc *crtc, unsigned int output);
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void rcar_du_crtc_update_planes(struct drm_crtc *crtc);
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#endif /* __RCAR_DU_CRTC_H__ */
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