1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2012 Russell King
4 */
5#ifndef ARMADA_DRM_H
6#define ARMADA_DRM_H
7
8#include <linux/kfifo.h>
9#include <linux/io.h>
10#include <linux/workqueue.h>
11
12#include <drm/drm_device.h>
13#include <drm/drm_mm.h>
14
15struct armada_crtc;
16struct armada_gem_object;
17struct clk;
18struct drm_display_mode;
19
20static inline void
21armada_updatel(uint32_t val, uint32_t mask, void __iomem *ptr)
22{
23	uint32_t ov, v;
24
25	ov = v = readl_relaxed(ptr);
26	v = (v & ~mask) | val;
27	if (ov != v)
28		writel_relaxed(v, ptr);
29}
30
31static inline uint32_t armada_pitch(uint32_t width, uint32_t bpp)
32{
33	uint32_t pitch = bpp != 4 ? width * ((bpp + 7) / 8) : width / 2;
34
35	/* 88AP510 spec recommends pitch be a multiple of 128 */
36	return ALIGN(pitch, 128);
37}
38
39
40struct armada_private;
41
42struct armada_variant {
43	bool has_spu_adv_reg;
44	int (*init)(struct armada_crtc *, struct device *);
45	int (*compute_clock)(struct armada_crtc *,
46			     const struct drm_display_mode *,
47			     uint32_t *);
48	void (*disable)(struct armada_crtc *);
49	void (*enable)(struct armada_crtc *, const struct drm_display_mode *);
50};
51
52/* Variant ops */
53extern const struct armada_variant armada510_ops;
54
55struct armada_private {
56	struct drm_device	drm;
57	struct armada_crtc	*dcrtc[2];
58	struct drm_mm		linear; /* protected by linear_lock */
59	struct mutex		linear_lock;
60	struct drm_property	*colorkey_prop;
61	struct drm_property	*colorkey_min_prop;
62	struct drm_property	*colorkey_max_prop;
63	struct drm_property	*colorkey_val_prop;
64	struct drm_property	*colorkey_alpha_prop;
65	struct drm_property	*colorkey_mode_prop;
66	struct drm_property	*brightness_prop;
67	struct drm_property	*contrast_prop;
68	struct drm_property	*saturation_prop;
69#ifdef CONFIG_DEBUG_FS
70	struct dentry		*de;
71#endif
72};
73
74#define drm_to_armada_dev(dev) container_of(dev, struct armada_private, drm)
75
76#if defined(CONFIG_DRM_FBDEV_EMULATION)
77void armada_fbdev_setup(struct drm_device *dev);
78#else
79static inline void armada_fbdev_setup(struct drm_device *dev)
80{ }
81#endif
82
83int armada_overlay_plane_create(struct drm_device *, unsigned long);
84
85void armada_drm_crtc_debugfs_init(struct armada_crtc *dcrtc);
86int armada_drm_debugfs_init(struct drm_minor *);
87
88#endif
89