tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (C) 2015 Free Electrons
3 * Copyright (C) 2015 NextThing Co
4 *
5 * Boris Brezillon <boris.brezillon@free-electrons.com>
6 * Maxime Ripard <maxime.ripard@free-electrons.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 */
13
14#ifndef __SUN4I_TCON_H__
15#define __SUN4I_TCON_H__
16
17#include <drm/drm_crtc.h>
18
19#include <linux/kernel.h>
20#include <linux/list.h>
21#include <linux/reset.h>
22
23#define SUN4I_TCON_GCTL_REG 0x0
24#define SUN4I_TCON_GCTL_TCON_ENABLE BIT(31)
25#define SUN4I_TCON_GCTL_IOMAP_MASK BIT(0)
26#define SUN4I_TCON_GCTL_IOMAP_TCON1 (1 << 0)
27#define SUN4I_TCON_GCTL_IOMAP_TCON0 (0 << 0)
28
29#define SUN4I_TCON_GINT0_REG 0x4
30#define SUN4I_TCON_GINT0_VBLANK_ENABLE(pipe) BIT(31 - (pipe))
31#define SUN4I_TCON_GINT0_VBLANK_INT(pipe) BIT(15 - (pipe))
32
33#define SUN4I_TCON_GINT1_REG 0x8
34#define SUN4I_TCON_FRM_CTL_REG 0x10
35
36#define SUN4I_TCON0_CTL_REG 0x40
37#define SUN4I_TCON0_CTL_TCON_ENABLE BIT(31)
38#define SUN4I_TCON0_CTL_CLK_DELAY_MASK GENMASK(8, 4)
39#define SUN4I_TCON0_CTL_CLK_DELAY(delay) ((delay << 4) & SUN4I_TCON0_CTL_CLK_DELAY_MASK)
40#define SUN4I_TCON0_CTL_SRC_SEL_MASK GENMASK(2, 0)
41
42#define SUN4I_TCON0_DCLK_REG 0x44
43#define SUN4I_TCON0_DCLK_GATE_BIT (31)
44#define SUN4I_TCON0_DCLK_DIV_SHIFT (0)
45#define SUN4I_TCON0_DCLK_DIV_WIDTH (7)
46
47#define SUN4I_TCON0_BASIC0_REG 0x48
48#define SUN4I_TCON0_BASIC0_X(width) ((((width) - 1) & 0xfff) << 16)
49#define SUN4I_TCON0_BASIC0_Y(height) (((height) - 1) & 0xfff)
50
51#define SUN4I_TCON0_BASIC1_REG 0x4c
52#define SUN4I_TCON0_BASIC1_H_TOTAL(total) ((((total) - 1) & 0x1fff) << 16)
53#define SUN4I_TCON0_BASIC1_H_BACKPORCH(bp) (((bp) - 1) & 0xfff)
54
55#define SUN4I_TCON0_BASIC2_REG 0x50
56#define SUN4I_TCON0_BASIC2_V_TOTAL(total) (((total) & 0x1fff) << 16)
57#define SUN4I_TCON0_BASIC2_V_BACKPORCH(bp) (((bp) - 1) & 0xfff)
58
59#define SUN4I_TCON0_BASIC3_REG 0x54
60#define SUN4I_TCON0_BASIC3_H_SYNC(width) ((((width) - 1) & 0x7ff) << 16)
61#define SUN4I_TCON0_BASIC3_V_SYNC(height) (((height) - 1) & 0x7ff)
62
63#define SUN4I_TCON0_HV_IF_REG 0x58
64#define SUN4I_TCON0_CPU_IF_REG 0x60
65#define SUN4I_TCON0_CPU_WR_REG 0x64
66#define SUN4I_TCON0_CPU_RD0_REG 0x68
67#define SUN4I_TCON0_CPU_RDA_REG 0x6c
68#define SUN4I_TCON0_TTL0_REG 0x70
69#define SUN4I_TCON0_TTL1_REG 0x74
70#define SUN4I_TCON0_TTL2_REG 0x78
71#define SUN4I_TCON0_TTL3_REG 0x7c
72#define SUN4I_TCON0_TTL4_REG 0x80
73#define SUN4I_TCON0_LVDS_IF_REG 0x84
74#define SUN4I_TCON0_IO_POL_REG 0x88
75#define SUN4I_TCON0_IO_POL_DCLK_PHASE(phase) ((phase & 3) << 28)
76#define SUN4I_TCON0_IO_POL_HSYNC_POSITIVE BIT(25)
77#define SUN4I_TCON0_IO_POL_VSYNC_POSITIVE BIT(24)
78
79#define SUN4I_TCON0_IO_TRI_REG 0x8c
80#define SUN4I_TCON0_IO_TRI_HSYNC_DISABLE BIT(25)
81#define SUN4I_TCON0_IO_TRI_VSYNC_DISABLE BIT(24)
82#define SUN4I_TCON0_IO_TRI_DATA_PINS_DISABLE(pins) GENMASK(pins, 0)
83
84#define SUN4I_TCON1_CTL_REG 0x90
85#define SUN4I_TCON1_CTL_TCON_ENABLE BIT(31)
86#define SUN4I_TCON1_CTL_INTERLACE_ENABLE BIT(20)
87#define SUN4I_TCON1_CTL_CLK_DELAY_MASK GENMASK(8, 4)
88#define SUN4I_TCON1_CTL_CLK_DELAY(delay) ((delay << 4) & SUN4I_TCON1_CTL_CLK_DELAY_MASK)
89#define SUN4I_TCON1_CTL_SRC_SEL_MASK GENMASK(1, 0)
90
91#define SUN4I_TCON1_BASIC0_REG 0x94
92#define SUN4I_TCON1_BASIC0_X(width) ((((width) - 1) & 0xfff) << 16)
93#define SUN4I_TCON1_BASIC0_Y(height) (((height) - 1) & 0xfff)
94
95#define SUN4I_TCON1_BASIC1_REG 0x98
96#define SUN4I_TCON1_BASIC1_X(width) ((((width) - 1) & 0xfff) << 16)
97#define SUN4I_TCON1_BASIC1_Y(height) (((height) - 1) & 0xfff)
98
99#define SUN4I_TCON1_BASIC2_REG 0x9c
100#define SUN4I_TCON1_BASIC2_X(width) ((((width) - 1) & 0xfff) << 16)
101#define SUN4I_TCON1_BASIC2_Y(height) (((height) - 1) & 0xfff)
102
103#define SUN4I_TCON1_BASIC3_REG 0xa0
104#define SUN4I_TCON1_BASIC3_H_TOTAL(total) ((((total) - 1) & 0x1fff) << 16)
105#define SUN4I_TCON1_BASIC3_H_BACKPORCH(bp) (((bp) - 1) & 0xfff)
106
107#define SUN4I_TCON1_BASIC4_REG 0xa4
108#define SUN4I_TCON1_BASIC4_V_TOTAL(total) (((total) & 0x1fff) << 16)
109#define SUN4I_TCON1_BASIC4_V_BACKPORCH(bp) (((bp) - 1) & 0xfff)
110
111#define SUN4I_TCON1_BASIC5_REG 0xa8
112#define SUN4I_TCON1_BASIC5_H_SYNC(width) ((((width) - 1) & 0x3ff) << 16)
113#define SUN4I_TCON1_BASIC5_V_SYNC(height) (((height) - 1) & 0x3ff)
114
115#define SUN4I_TCON1_IO_POL_REG 0xf0
116#define SUN4I_TCON1_IO_TRI_REG 0xf4
117#define SUN4I_TCON_CEU_CTL_REG 0x100
118#define SUN4I_TCON_CEU_MUL_RR_REG 0x110
119#define SUN4I_TCON_CEU_MUL_RG_REG 0x114
120#define SUN4I_TCON_CEU_MUL_RB_REG 0x118
121#define SUN4I_TCON_CEU_ADD_RC_REG 0x11c
122#define SUN4I_TCON_CEU_MUL_GR_REG 0x120
123#define SUN4I_TCON_CEU_MUL_GG_REG 0x124
124#define SUN4I_TCON_CEU_MUL_GB_REG 0x128
125#define SUN4I_TCON_CEU_ADD_GC_REG 0x12c
126#define SUN4I_TCON_CEU_MUL_BR_REG 0x130
127#define SUN4I_TCON_CEU_MUL_BG_REG 0x134
128#define SUN4I_TCON_CEU_MUL_BB_REG 0x138
129#define SUN4I_TCON_CEU_ADD_BC_REG 0x13c
130#define SUN4I_TCON_CEU_RANGE_R_REG 0x140
131#define SUN4I_TCON_CEU_RANGE_G_REG 0x144
132#define SUN4I_TCON_CEU_RANGE_B_REG 0x148
133#define SUN4I_TCON_MUX_CTRL_REG 0x200
134#define SUN4I_TCON1_FILL_CTL_REG 0x300
135#define SUN4I_TCON1_FILL_BEG0_REG 0x304
136#define SUN4I_TCON1_FILL_END0_REG 0x308
137#define SUN4I_TCON1_FILL_DATA0_REG 0x30c
138#define SUN4I_TCON1_FILL_BEG1_REG 0x310
139#define SUN4I_TCON1_FILL_END1_REG 0x314
140#define SUN4I_TCON1_FILL_DATA1_REG 0x318
141#define SUN4I_TCON1_FILL_BEG2_REG 0x31c
142#define SUN4I_TCON1_FILL_END2_REG 0x320
143#define SUN4I_TCON1_FILL_DATA2_REG 0x324
144#define SUN4I_TCON1_GAMMA_TABLE_REG 0x400
145
146#define SUN4I_TCON_MAX_CHANNELS 2
147
148struct sun4i_tcon;
149
150struct sun4i_tcon_quirks {
151 bool has_channel_1; /* a33 does not have channel 1 */
152 bool needs_de_be_mux; /* sun6i needs mux to select backend */
153
154 /* callback to handle tcon muxing options */
155 int (*set_mux)(struct sun4i_tcon *, const struct drm_encoder *);
156};
157
158struct sun4i_tcon {
159 struct device *dev;
160 struct drm_device *drm;
161 struct regmap *regs;
162
163 /* Main bus clock */
164 struct clk *clk;
165
166 /* Clocks for the TCON channels */
167 struct clk *sclk0;
168 struct clk *sclk1;
169
170 /* Pixel clock */
171 struct clk *dclk;
172
173 /* Reset control */
174 struct reset_control *lcd_rst;
175
176 struct drm_panel *panel;
177
178 /* Platform adjustments */
179 const struct sun4i_tcon_quirks *quirks;
180
181 /* Associated crtc */
182 struct sun4i_crtc *crtc;
183
184 int id;
185
186 /* TCON list management */
187 struct list_head list;
188};
189
190struct drm_bridge *sun4i_tcon_find_bridge(struct device_node *node);
191struct drm_panel *sun4i_tcon_find_panel(struct device_node *node);
192
193void sun4i_tcon_enable_vblank(struct sun4i_tcon *tcon, bool enable);
194void sun4i_tcon_mode_set(struct sun4i_tcon *tcon,
195 const struct drm_encoder *encoder,
196 const struct drm_display_mode *mode);
197void sun4i_tcon_set_status(struct sun4i_tcon *crtc,
198 const struct drm_encoder *encoder, bool enable);
199
200#endif /* __SUN4I_TCON_H__ */