linux/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * RZ/G2L Display Unit CRTCs
 *
 * Copyright (C) 2023 Renesas Electronics Corporation
 *
 * Based on rcar_du_crtc.c
 */

#include <linux/clk.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/reset.h>

#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_bridge.h>
#include <drm/drm_crtc.h>
#include <drm/drm_device.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_gem_dma_helper.h>
#include <drm/drm_vblank.h>

#include "rzg2l_du_crtc.h"
#include "rzg2l_du_drv.h"
#include "rzg2l_du_encoder.h"
#include "rzg2l_du_kms.h"
#include "rzg2l_du_vsp.h"

#define DU_MCR0 …
#define DU_MCR0_DPI_OE …
#define DU_MCR0_DI_EN …

#define DU_DITR0 …
#define DU_DITR0_DEMD_HIGH …
#define DU_DITR0_VSPOL …
#define DU_DITR0_HSPOL …

#define DU_DITR1 …
#define DU_DITR1_VSA(x) …
#define DU_DITR1_VACTIVE(x) …

#define DU_DITR2 …
#define DU_DITR2_VBP(x) …
#define DU_DITR2_VFP(x) …

#define DU_DITR3 …
#define DU_DITR3_HSA(x) …
#define DU_DITR3_HACTIVE(x) …

#define DU_DITR4 …
#define DU_DITR4_HBP(x) …
#define DU_DITR4_HFP(x) …

#define DU_MCR1 …
#define DU_MCR1_PB_AUTOCLR …

#define DU_PBCR0 …
#define DU_PBCR0_PB_DEP(x) …

/* -----------------------------------------------------------------------------
 * Hardware Setup
 */

static void rzg2l_du_crtc_set_display_timing(struct rzg2l_du_crtc *rcrtc)
{ … }

/* -----------------------------------------------------------------------------
 * Page Flip
 */

void rzg2l_du_crtc_finish_page_flip(struct rzg2l_du_crtc *rcrtc)
{ … }

static bool rzg2l_du_crtc_page_flip_pending(struct rzg2l_du_crtc *rcrtc)
{ … }

static void rzg2l_du_crtc_wait_page_flip(struct rzg2l_du_crtc *rcrtc)
{ … }

/* -----------------------------------------------------------------------------
 * Start/Stop and Suspend/Resume
 */

static void rzg2l_du_crtc_setup(struct rzg2l_du_crtc *rcrtc)
{ … }

static int rzg2l_du_crtc_get(struct rzg2l_du_crtc *rcrtc)
{ … }

static void rzg2l_du_crtc_put(struct rzg2l_du_crtc *rcrtc)
{ … }

static void rzg2l_du_start_stop(struct rzg2l_du_crtc *rcrtc, bool start)
{ … }

static void rzg2l_du_crtc_start(struct rzg2l_du_crtc *rcrtc)
{ … }

static void rzg2l_du_crtc_stop(struct rzg2l_du_crtc *rcrtc)
{ … }

/* -----------------------------------------------------------------------------
 * CRTC Functions
 */

static void rzg2l_du_crtc_atomic_enable(struct drm_crtc *crtc,
					struct drm_atomic_state *state)
{ … }

static void rzg2l_du_crtc_atomic_disable(struct drm_crtc *crtc,
					 struct drm_atomic_state *state)
{ … }

static void rzg2l_du_crtc_atomic_flush(struct drm_crtc *crtc,
				       struct drm_atomic_state *state)
{ … }

static const struct drm_crtc_helper_funcs crtc_helper_funcs = …;

static struct drm_crtc_state *
rzg2l_du_crtc_atomic_duplicate_state(struct drm_crtc *crtc)
{ … }

static void rzg2l_du_crtc_atomic_destroy_state(struct drm_crtc *crtc,
					       struct drm_crtc_state *state)
{ … }

static void rzg2l_du_crtc_reset(struct drm_crtc *crtc)
{ … }

static int rzg2l_du_crtc_enable_vblank(struct drm_crtc *crtc)
{ … }

static void rzg2l_du_crtc_disable_vblank(struct drm_crtc *crtc)
{ … }

static const struct drm_crtc_funcs crtc_funcs_rz = …;

/* -----------------------------------------------------------------------------
 * Initialization
 */

int rzg2l_du_crtc_create(struct rzg2l_du_device *rcdu)
{ … }