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