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[linux-block.git] / drivers / gpu / drm / sun4i / sun4i_tcon.h
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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>
80a58240 20#include <linux/list.h>
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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)
27e18de7 40#define SUN4I_TCON0_CTL_SRC_SEL_MASK GENMASK(2, 0)
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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
a88cbbd4 56#define SUN4I_TCON0_BASIC2_V_TOTAL(total) (((total) & 0x1fff) << 16)
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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
a0c1214e 73
9026e0d1 74#define SUN4I_TCON0_LVDS_IF_REG 0x84
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75#define SUN4I_TCON0_LVDS_IF_EN BIT(31)
76#define SUN4I_TCON0_LVDS_IF_BITWIDTH_MASK BIT(26)
77#define SUN4I_TCON0_LVDS_IF_BITWIDTH_18BITS (1 << 26)
78#define SUN4I_TCON0_LVDS_IF_BITWIDTH_24BITS (0 << 26)
79#define SUN4I_TCON0_LVDS_IF_CLK_SEL_MASK BIT(20)
80#define SUN4I_TCON0_LVDS_IF_CLK_SEL_TCON0 (1 << 20)
81#define SUN4I_TCON0_LVDS_IF_CLK_POL_MASK BIT(4)
82#define SUN4I_TCON0_LVDS_IF_CLK_POL_NORMAL (1 << 4)
83#define SUN4I_TCON0_LVDS_IF_CLK_POL_INV (0 << 4)
84#define SUN4I_TCON0_LVDS_IF_DATA_POL_MASK GENMASK(3, 0)
85#define SUN4I_TCON0_LVDS_IF_DATA_POL_NORMAL (0xf)
86#define SUN4I_TCON0_LVDS_IF_DATA_POL_INV (0)
87
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88#define SUN4I_TCON0_IO_POL_REG 0x88
89#define SUN4I_TCON0_IO_POL_DCLK_PHASE(phase) ((phase & 3) << 28)
90#define SUN4I_TCON0_IO_POL_HSYNC_POSITIVE BIT(25)
91#define SUN4I_TCON0_IO_POL_VSYNC_POSITIVE BIT(24)
92
93#define SUN4I_TCON0_IO_TRI_REG 0x8c
94#define SUN4I_TCON0_IO_TRI_HSYNC_DISABLE BIT(25)
95#define SUN4I_TCON0_IO_TRI_VSYNC_DISABLE BIT(24)
96#define SUN4I_TCON0_IO_TRI_DATA_PINS_DISABLE(pins) GENMASK(pins, 0)
97
98#define SUN4I_TCON1_CTL_REG 0x90
99#define SUN4I_TCON1_CTL_TCON_ENABLE BIT(31)
100#define SUN4I_TCON1_CTL_INTERLACE_ENABLE BIT(20)
101#define SUN4I_TCON1_CTL_CLK_DELAY_MASK GENMASK(8, 4)
102#define SUN4I_TCON1_CTL_CLK_DELAY(delay) ((delay << 4) & SUN4I_TCON1_CTL_CLK_DELAY_MASK)
27e18de7 103#define SUN4I_TCON1_CTL_SRC_SEL_MASK GENMASK(1, 0)
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104
105#define SUN4I_TCON1_BASIC0_REG 0x94
106#define SUN4I_TCON1_BASIC0_X(width) ((((width) - 1) & 0xfff) << 16)
107#define SUN4I_TCON1_BASIC0_Y(height) (((height) - 1) & 0xfff)
108
109#define SUN4I_TCON1_BASIC1_REG 0x98
110#define SUN4I_TCON1_BASIC1_X(width) ((((width) - 1) & 0xfff) << 16)
111#define SUN4I_TCON1_BASIC1_Y(height) (((height) - 1) & 0xfff)
112
113#define SUN4I_TCON1_BASIC2_REG 0x9c
114#define SUN4I_TCON1_BASIC2_X(width) ((((width) - 1) & 0xfff) << 16)
115#define SUN4I_TCON1_BASIC2_Y(height) (((height) - 1) & 0xfff)
116
117#define SUN4I_TCON1_BASIC3_REG 0xa0
118#define SUN4I_TCON1_BASIC3_H_TOTAL(total) ((((total) - 1) & 0x1fff) << 16)
119#define SUN4I_TCON1_BASIC3_H_BACKPORCH(bp) (((bp) - 1) & 0xfff)
120
121#define SUN4I_TCON1_BASIC4_REG 0xa4
122#define SUN4I_TCON1_BASIC4_V_TOTAL(total) (((total) & 0x1fff) << 16)
123#define SUN4I_TCON1_BASIC4_V_BACKPORCH(bp) (((bp) - 1) & 0xfff)
124
125#define SUN4I_TCON1_BASIC5_REG 0xa8
126#define SUN4I_TCON1_BASIC5_H_SYNC(width) ((((width) - 1) & 0x3ff) << 16)
127#define SUN4I_TCON1_BASIC5_V_SYNC(height) (((height) - 1) & 0x3ff)
128
129#define SUN4I_TCON1_IO_POL_REG 0xf0
130#define SUN4I_TCON1_IO_TRI_REG 0xf4
131#define SUN4I_TCON_CEU_CTL_REG 0x100
132#define SUN4I_TCON_CEU_MUL_RR_REG 0x110
133#define SUN4I_TCON_CEU_MUL_RG_REG 0x114
134#define SUN4I_TCON_CEU_MUL_RB_REG 0x118
135#define SUN4I_TCON_CEU_ADD_RC_REG 0x11c
136#define SUN4I_TCON_CEU_MUL_GR_REG 0x120
137#define SUN4I_TCON_CEU_MUL_GG_REG 0x124
138#define SUN4I_TCON_CEU_MUL_GB_REG 0x128
139#define SUN4I_TCON_CEU_ADD_GC_REG 0x12c
140#define SUN4I_TCON_CEU_MUL_BR_REG 0x130
141#define SUN4I_TCON_CEU_MUL_BG_REG 0x134
142#define SUN4I_TCON_CEU_MUL_BB_REG 0x138
143#define SUN4I_TCON_CEU_ADD_BC_REG 0x13c
144#define SUN4I_TCON_CEU_RANGE_R_REG 0x140
145#define SUN4I_TCON_CEU_RANGE_G_REG 0x144
146#define SUN4I_TCON_CEU_RANGE_B_REG 0x148
147#define SUN4I_TCON_MUX_CTRL_REG 0x200
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148
149#define SUN4I_TCON0_LVDS_ANA0_REG 0x220
150#define SUN6I_TCON0_LVDS_ANA0_EN_MB BIT(31)
151#define SUN6I_TCON0_LVDS_ANA0_EN_LDO BIT(30)
152#define SUN6I_TCON0_LVDS_ANA0_EN_DRVC BIT(24)
153#define SUN6I_TCON0_LVDS_ANA0_EN_DRVD(x) (((x) & 0xf) << 20)
154#define SUN6I_TCON0_LVDS_ANA0_C(x) (((x) & 3) << 17)
155#define SUN6I_TCON0_LVDS_ANA0_V(x) (((x) & 3) << 8)
156#define SUN6I_TCON0_LVDS_ANA0_PD(x) (((x) & 3) << 4)
157
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158#define SUN4I_TCON1_FILL_CTL_REG 0x300
159#define SUN4I_TCON1_FILL_BEG0_REG 0x304
160#define SUN4I_TCON1_FILL_END0_REG 0x308
161#define SUN4I_TCON1_FILL_DATA0_REG 0x30c
162#define SUN4I_TCON1_FILL_BEG1_REG 0x310
163#define SUN4I_TCON1_FILL_END1_REG 0x314
164#define SUN4I_TCON1_FILL_DATA1_REG 0x318
165#define SUN4I_TCON1_FILL_BEG2_REG 0x31c
166#define SUN4I_TCON1_FILL_END2_REG 0x320
167#define SUN4I_TCON1_FILL_DATA2_REG 0x324
168#define SUN4I_TCON1_GAMMA_TABLE_REG 0x400
169
170#define SUN4I_TCON_MAX_CHANNELS 2
171
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172struct sun4i_tcon;
173
91ea2f29 174struct sun4i_tcon_quirks {
91ea2f29 175 bool has_channel_1; /* a33 does not have channel 1 */
a0c1214e 176 bool has_lvds_alt; /* Does the LVDS clock have a parent other than the TCON clock? */
27e18de7 177 bool needs_de_be_mux; /* sun6i needs mux to select backend */
e742a17c 178 bool supports_lvds; /* Does the TCON support an LVDS output? */
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179
180 /* callback to handle tcon muxing options */
abcb8766 181 int (*set_mux)(struct sun4i_tcon *, const struct drm_encoder *);
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182};
183
9026e0d1 184struct sun4i_tcon {
ae558110 185 struct device *dev;
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186 struct drm_device *drm;
187 struct regmap *regs;
188
189 /* Main bus clock */
190 struct clk *clk;
191
192 /* Clocks for the TCON channels */
193 struct clk *sclk0;
194 struct clk *sclk1;
195
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196 /* Possible mux for the LVDS clock */
197 struct clk *lvds_pll;
198
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199 /* Pixel clock */
200 struct clk *dclk;
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201 u8 dclk_max_div;
202 u8 dclk_min_div;
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203
204 /* Reset control */
205 struct reset_control *lcd_rst;
a0c1214e 206 struct reset_control *lvds_rst;
9026e0d1 207
29e57fab 208 struct drm_panel *panel;
8e924047 209
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210 /* Platform adjustments */
211 const struct sun4i_tcon_quirks *quirks;
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212
213 /* Associated crtc */
214 struct sun4i_crtc *crtc;
80a58240 215
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216 int id;
217
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218 /* TCON list management */
219 struct list_head list;
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220};
221
894f5a9f 222struct drm_bridge *sun4i_tcon_find_bridge(struct device_node *node);
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223struct drm_panel *sun4i_tcon_find_panel(struct device_node *node);
224
9026e0d1 225void sun4i_tcon_enable_vblank(struct sun4i_tcon *tcon, bool enable);
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226void sun4i_tcon_mode_set(struct sun4i_tcon *tcon,
227 const struct drm_encoder *encoder,
228 const struct drm_display_mode *mode);
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229void sun4i_tcon_set_status(struct sun4i_tcon *crtc,
230 const struct drm_encoder *encoder, bool enable);
9026e0d1 231
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232extern const struct of_device_id sun4i_tcon_of_table[];
233
9026e0d1 234#endif /* __SUN4I_TCON_H__ */