1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (C) STMicroelectronics SA 2014
4 * Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
5 *          Fabien Dessenne <fabien.dessenne@st.com>
6 *          for STMicroelectronics.
7 */
8
9#ifndef _STI_COMPOSITOR_H_
10#define _STI_COMPOSITOR_H_
11
12#include <linux/clk.h>
13#include <linux/kernel.h>
14
15#include "sti_mixer.h"
16#include "sti_plane.h"
17
18#define WAIT_NEXT_VSYNC_MS      50 /*ms*/
19
20#define STI_MAX_MIXER 2
21#define STI_MAX_VID   1
22
23enum sti_compositor_subdev_type {
24	STI_MIXER_MAIN_SUBDEV,
25	STI_MIXER_AUX_SUBDEV,
26	STI_GPD_SUBDEV,
27	STI_VID_SUBDEV,
28	STI_CURSOR_SUBDEV,
29};
30
31struct sti_compositor_subdev_descriptor {
32	enum sti_compositor_subdev_type type;
33	int id;
34	unsigned int offset;
35};
36
37/**
38 * STI Compositor data structure
39 *
40 * @nb_subdev: number of subdevices supported by the compositor
41 * @subdev_desc: subdev list description
42 */
43#define MAX_SUBDEV 9
44struct sti_compositor_data {
45	unsigned int nb_subdev;
46	struct sti_compositor_subdev_descriptor subdev_desc[MAX_SUBDEV];
47};
48
49/**
50 * STI Compositor structure
51 *
52 * @dev: driver device
53 * @regs: registers (main)
54 * @data: device data
55 * @clk_compo_main: clock for main compo
56 * @clk_compo_aux: clock for aux compo
57 * @clk_pix_main: pixel clock for main path
58 * @clk_pix_aux: pixel clock for aux path
59 * @rst_main: reset control of the main path
60 * @rst_aux: reset control of the aux path
61 * @mixer: array of mixers
62 * @vid: array of vids
63 * @vtg: array of vtgs
64 * @vtg_vblank_nb: array of callbacks for VTG VSYNC notification
65 */
66struct sti_compositor {
67	struct device *dev;
68	void __iomem *regs;
69	struct sti_compositor_data data;
70	struct clk *clk_compo_main;
71	struct clk *clk_compo_aux;
72	struct clk *clk_pix_main;
73	struct clk *clk_pix_aux;
74	struct reset_control *rst_main;
75	struct reset_control *rst_aux;
76	struct sti_mixer *mixer[STI_MAX_MIXER];
77	struct sti_vid *vid[STI_MAX_VID];
78	struct sti_vtg *vtg[STI_MAX_MIXER];
79	struct notifier_block vtg_vblank_nb[STI_MAX_MIXER];
80};
81
82void sti_compositor_debugfs_init(struct sti_compositor *compo,
83				 struct drm_minor *minor);
84
85#endif
86