90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* RZ/G2L Display Unit CRTCs
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*
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* Copyright (C) 2023 Renesas Electronics Corporation
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*
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* Based on rcar_du_crtc.h
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*/
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#ifndef __RZG2L_DU_CRTC_H__
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#define __RZG2L_DU_CRTC_H__
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#include <linux/container_of.h>
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#include <linux/mutex.h>
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#include <linux/spinlock.h>
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#include <linux/wait.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_writeback.h>
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#include <media/vsp1.h>
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struct clk;
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struct reset_control;
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struct rzg2l_du_vsp;
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struct rzg2l_du_format_info;
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/**
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* struct rzg2l_du_crtc - the CRTC, representing a DU superposition processor
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* @crtc: base DRM CRTC
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* @dev: the DU device
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* @initialized: whether the CRTC has been initialized and clocks enabled
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* @vblank_enable: whether vblank events are enabled on this CRTC
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* @event: event to post when the pending page flip completes
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* @flip_wait: wait queue used to signal page flip completion
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* @vsp: VSP feeding video to this CRTC
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* @vsp_pipe: index of the VSP pipeline feeding video to this CRTC
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* @rstc: reset controller
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* @rzg2l_clocks: the bus, main and video clock
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*/
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struct rzg2l_du_crtc {
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struct drm_crtc crtc;
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struct rzg2l_du_device *dev;
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bool initialized;
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bool vblank_enable;
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struct drm_pending_vblank_event *event;
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wait_queue_head_t flip_wait;
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struct rzg2l_du_vsp *vsp;
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unsigned int vsp_pipe;
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const char *const *sources;
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unsigned int sources_count;
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struct reset_control *rstc;
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struct {
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struct clk *aclk;
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struct clk *pclk;
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struct clk *dclk;
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} rzg2l_clocks;
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};
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static inline struct rzg2l_du_crtc *to_rzg2l_crtc(struct drm_crtc *c)
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{
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return container_of(c, struct rzg2l_du_crtc, crtc);
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}
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/**
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* struct rzg2l_du_crtc_state - Driver-specific CRTC state
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* @state: base DRM CRTC state
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* @outputs: bitmask of the outputs (enum rzg2l_du_output) driven by this CRTC
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*/
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struct rzg2l_du_crtc_state {
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struct drm_crtc_state state;
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unsigned int outputs;
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};
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static inline struct rzg2l_du_crtc_state *to_rzg2l_crtc_state(struct drm_crtc_state *s)
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{
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return container_of(s, struct rzg2l_du_crtc_state, state);
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}
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int rzg2l_du_crtc_create(struct rzg2l_du_device *rcdu);
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void rzg2l_du_crtc_finish_page_flip(struct rzg2l_du_crtc *rcrtc);
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#endif /* __RZG2L_DU_CRTC_H__ */
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