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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#include <drm/drmP.h>
12
13struct armada_crtc;
14struct armada_gem_object;
15struct clk;
16struct drm_fb_helper;
17
18static inline void
19armada_updatel(uint32_t val, uint32_t mask, void __iomem *ptr)
20{
21 uint32_t ov, v;
22
23 ov = v = readl_relaxed(ptr);
24 v = (v & ~mask) | val;
25 if (ov != v)
26 writel_relaxed(v, ptr);
27}
28
29static inline uint32_t armada_pitch(uint32_t width, uint32_t bpp)
30{
31 uint32_t pitch = bpp != 4 ? width * ((bpp + 7) / 8) : width / 2;
32
33 /* 88AP510 spec recommends pitch be a multiple of 128 */
34 return ALIGN(pitch, 128);
35}
36
37
38struct armada_private;
39
40struct armada_variant {
41 bool has_spu_adv_reg;
42 int (*init)(struct armada_crtc *, struct device *);
43 int (*compute_clock)(struct armada_crtc *,
44 const struct drm_display_mode *,
45 uint32_t *);
46 void (*disable)(struct armada_crtc *);
47 void (*enable)(struct armada_crtc *, const struct drm_display_mode *);
48};
49
50/* Variant ops */
51extern const struct armada_variant armada510_ops;
52
53struct armada_private {
54 struct drm_device drm;
55 struct drm_fb_helper *fbdev;
56 struct armada_crtc *dcrtc[2];
57 struct drm_mm linear; /* protected by linear_lock */
58 struct mutex linear_lock;
59 struct drm_property *colorkey_prop;
60 struct drm_property *colorkey_min_prop;
61 struct drm_property *colorkey_max_prop;
62 struct drm_property *colorkey_val_prop;
63 struct drm_property *colorkey_alpha_prop;
64 struct drm_property *colorkey_mode_prop;
65 struct drm_property *brightness_prop;
66 struct drm_property *contrast_prop;
67 struct drm_property *saturation_prop;
68#ifdef CONFIG_DEBUG_FS
69 struct dentry *de;
70#endif
71};
72
73int armada_fbdev_init(struct drm_device *);
74void armada_fbdev_fini(struct drm_device *);
75
76int armada_overlay_plane_create(struct drm_device *, unsigned long);
77
78void armada_drm_crtc_debugfs_init(struct armada_crtc *dcrtc);
79int armada_drm_debugfs_init(struct drm_minor *);
80
81#endif