linux/drivers/gpu/drm/arm/display/komeda/komeda_plane.c

// SPDX-License-Identifier: GPL-2.0
/*
 * (C) COPYRIGHT 2018 ARM Limited. All rights reserved.
 * Author: James.Qian.Wang <[email protected]>
 *
 */
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_blend.h>
#include <drm/drm_print.h>
#include "komeda_dev.h"
#include "komeda_kms.h"
#include "komeda_framebuffer.h"

static int
komeda_plane_init_data_flow(struct drm_plane_state *st,
			    struct komeda_crtc_state *kcrtc_st,
			    struct komeda_data_flow_cfg *dflow)
{ … }

/**
 * komeda_plane_atomic_check - build input data flow
 * @plane: DRM plane
 * @state: the plane state object
 *
 * RETURNS:
 * Zero for success or -errno
 */
static int
komeda_plane_atomic_check(struct drm_plane *plane,
			  struct drm_atomic_state *state)
{ … }

/* plane doesn't represent a real HW, so there is no HW update for plane.
 * komeda handles all the HW update in crtc->atomic_flush
 */
static void
komeda_plane_atomic_update(struct drm_plane *plane,
			   struct drm_atomic_state *state)
{ … }

static const struct drm_plane_helper_funcs komeda_plane_helper_funcs = …;

static void komeda_plane_destroy(struct drm_plane *plane)
{ … }

static void komeda_plane_reset(struct drm_plane *plane)
{ … }

static struct drm_plane_state *
komeda_plane_atomic_duplicate_state(struct drm_plane *plane)
{ … }

static void
komeda_plane_atomic_destroy_state(struct drm_plane *plane,
				  struct drm_plane_state *state)
{ … }

static bool
komeda_plane_format_mod_supported(struct drm_plane *plane,
				  u32 format, u64 modifier)
{ … }

static const struct drm_plane_funcs komeda_plane_funcs = …;

/* for komeda, which is pipeline can be share between crtcs */
static u32 get_possible_crtcs(struct komeda_kms_dev *kms,
			      struct komeda_pipeline *pipe)
{ … }

static void
komeda_set_crtc_plane_mask(struct komeda_kms_dev *kms,
			   struct komeda_pipeline *pipe,
			   struct drm_plane *plane)
{ … }

/* use Layer0 as primary */
static u32 get_plane_type(struct komeda_kms_dev *kms,
			  struct komeda_component *c)
{ … }

static int komeda_plane_add(struct komeda_kms_dev *kms,
			    struct komeda_layer *layer)
{ … }

int komeda_kms_add_planes(struct komeda_kms_dev *kms, struct komeda_dev *mdev)
{ … }