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45244b87 ED |
1 | /* |
2 | * Copyright © 2012 Intel Corporation | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice (including the next | |
12 | * paragraph) shall be included in all copies or substantial portions of the | |
13 | * Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | |
21 | * IN THE SOFTWARE. | |
22 | * | |
23 | * Authors: | |
24 | * Eugeni Dodonov <eugeni.dodonov@intel.com> | |
25 | * | |
26 | */ | |
27 | ||
28 | #include "i915_drv.h" | |
29 | #include "intel_drv.h" | |
30 | ||
10122051 JN |
31 | struct ddi_buf_trans { |
32 | u32 trans1; /* balance leg enable, de-emph level */ | |
33 | u32 trans2; /* vref sel, vswing */ | |
f8896f5d | 34 | u8 i_boost; /* SKL: I_boost; valid: 0x0, 0x1, 0x3, 0x7 */ |
10122051 JN |
35 | }; |
36 | ||
97eeb872 VS |
37 | static const u8 index_to_dp_signal_levels[] = { |
38 | [0] = DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_0, | |
39 | [1] = DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_1, | |
40 | [2] = DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_2, | |
41 | [3] = DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_3, | |
42 | [4] = DP_TRAIN_VOLTAGE_SWING_LEVEL_1 | DP_TRAIN_PRE_EMPH_LEVEL_0, | |
43 | [5] = DP_TRAIN_VOLTAGE_SWING_LEVEL_1 | DP_TRAIN_PRE_EMPH_LEVEL_1, | |
44 | [6] = DP_TRAIN_VOLTAGE_SWING_LEVEL_1 | DP_TRAIN_PRE_EMPH_LEVEL_2, | |
45 | [7] = DP_TRAIN_VOLTAGE_SWING_LEVEL_2 | DP_TRAIN_PRE_EMPH_LEVEL_0, | |
46 | [8] = DP_TRAIN_VOLTAGE_SWING_LEVEL_2 | DP_TRAIN_PRE_EMPH_LEVEL_1, | |
47 | [9] = DP_TRAIN_VOLTAGE_SWING_LEVEL_3 | DP_TRAIN_PRE_EMPH_LEVEL_0, | |
48 | }; | |
49 | ||
45244b87 ED |
50 | /* HDMI/DVI modes ignore everything but the last 2 items. So we share |
51 | * them for both DP and FDI transports, allowing those ports to | |
52 | * automatically adapt to HDMI connections as well | |
53 | */ | |
10122051 | 54 | static const struct ddi_buf_trans hsw_ddi_translations_dp[] = { |
f8896f5d DW |
55 | { 0x00FFFFFF, 0x0006000E, 0x0 }, |
56 | { 0x00D75FFF, 0x0005000A, 0x0 }, | |
57 | { 0x00C30FFF, 0x00040006, 0x0 }, | |
58 | { 0x80AAAFFF, 0x000B0000, 0x0 }, | |
59 | { 0x00FFFFFF, 0x0005000A, 0x0 }, | |
60 | { 0x00D75FFF, 0x000C0004, 0x0 }, | |
61 | { 0x80C30FFF, 0x000B0000, 0x0 }, | |
62 | { 0x00FFFFFF, 0x00040006, 0x0 }, | |
63 | { 0x80D75FFF, 0x000B0000, 0x0 }, | |
45244b87 ED |
64 | }; |
65 | ||
10122051 | 66 | static const struct ddi_buf_trans hsw_ddi_translations_fdi[] = { |
f8896f5d DW |
67 | { 0x00FFFFFF, 0x0007000E, 0x0 }, |
68 | { 0x00D75FFF, 0x000F000A, 0x0 }, | |
69 | { 0x00C30FFF, 0x00060006, 0x0 }, | |
70 | { 0x00AAAFFF, 0x001E0000, 0x0 }, | |
71 | { 0x00FFFFFF, 0x000F000A, 0x0 }, | |
72 | { 0x00D75FFF, 0x00160004, 0x0 }, | |
73 | { 0x00C30FFF, 0x001E0000, 0x0 }, | |
74 | { 0x00FFFFFF, 0x00060006, 0x0 }, | |
75 | { 0x00D75FFF, 0x001E0000, 0x0 }, | |
6acab15a PZ |
76 | }; |
77 | ||
10122051 JN |
78 | static const struct ddi_buf_trans hsw_ddi_translations_hdmi[] = { |
79 | /* Idx NT mV d T mV d db */ | |
f8896f5d DW |
80 | { 0x00FFFFFF, 0x0006000E, 0x0 },/* 0: 400 400 0 */ |
81 | { 0x00E79FFF, 0x000E000C, 0x0 },/* 1: 400 500 2 */ | |
82 | { 0x00D75FFF, 0x0005000A, 0x0 },/* 2: 400 600 3.5 */ | |
83 | { 0x00FFFFFF, 0x0005000A, 0x0 },/* 3: 600 600 0 */ | |
84 | { 0x00E79FFF, 0x001D0007, 0x0 },/* 4: 600 750 2 */ | |
85 | { 0x00D75FFF, 0x000C0004, 0x0 },/* 5: 600 900 3.5 */ | |
86 | { 0x00FFFFFF, 0x00040006, 0x0 },/* 6: 800 800 0 */ | |
87 | { 0x80E79FFF, 0x00030002, 0x0 },/* 7: 800 1000 2 */ | |
88 | { 0x00FFFFFF, 0x00140005, 0x0 },/* 8: 850 850 0 */ | |
89 | { 0x00FFFFFF, 0x000C0004, 0x0 },/* 9: 900 900 0 */ | |
90 | { 0x00FFFFFF, 0x001C0003, 0x0 },/* 10: 950 950 0 */ | |
91 | { 0x80FFFFFF, 0x00030002, 0x0 },/* 11: 1000 1000 0 */ | |
45244b87 ED |
92 | }; |
93 | ||
10122051 | 94 | static const struct ddi_buf_trans bdw_ddi_translations_edp[] = { |
f8896f5d DW |
95 | { 0x00FFFFFF, 0x00000012, 0x0 }, |
96 | { 0x00EBAFFF, 0x00020011, 0x0 }, | |
97 | { 0x00C71FFF, 0x0006000F, 0x0 }, | |
98 | { 0x00AAAFFF, 0x000E000A, 0x0 }, | |
99 | { 0x00FFFFFF, 0x00020011, 0x0 }, | |
100 | { 0x00DB6FFF, 0x0005000F, 0x0 }, | |
101 | { 0x00BEEFFF, 0x000A000C, 0x0 }, | |
102 | { 0x00FFFFFF, 0x0005000F, 0x0 }, | |
103 | { 0x00DB6FFF, 0x000A000C, 0x0 }, | |
300644c7 PZ |
104 | }; |
105 | ||
10122051 | 106 | static const struct ddi_buf_trans bdw_ddi_translations_dp[] = { |
f8896f5d DW |
107 | { 0x00FFFFFF, 0x0007000E, 0x0 }, |
108 | { 0x00D75FFF, 0x000E000A, 0x0 }, | |
109 | { 0x00BEFFFF, 0x00140006, 0x0 }, | |
110 | { 0x80B2CFFF, 0x001B0002, 0x0 }, | |
111 | { 0x00FFFFFF, 0x000E000A, 0x0 }, | |
112 | { 0x00DB6FFF, 0x00160005, 0x0 }, | |
113 | { 0x80C71FFF, 0x001A0002, 0x0 }, | |
114 | { 0x00F7DFFF, 0x00180004, 0x0 }, | |
115 | { 0x80D75FFF, 0x001B0002, 0x0 }, | |
e58623cb AR |
116 | }; |
117 | ||
10122051 | 118 | static const struct ddi_buf_trans bdw_ddi_translations_fdi[] = { |
f8896f5d DW |
119 | { 0x00FFFFFF, 0x0001000E, 0x0 }, |
120 | { 0x00D75FFF, 0x0004000A, 0x0 }, | |
121 | { 0x00C30FFF, 0x00070006, 0x0 }, | |
122 | { 0x00AAAFFF, 0x000C0000, 0x0 }, | |
123 | { 0x00FFFFFF, 0x0004000A, 0x0 }, | |
124 | { 0x00D75FFF, 0x00090004, 0x0 }, | |
125 | { 0x00C30FFF, 0x000C0000, 0x0 }, | |
126 | { 0x00FFFFFF, 0x00070006, 0x0 }, | |
127 | { 0x00D75FFF, 0x000C0000, 0x0 }, | |
e58623cb AR |
128 | }; |
129 | ||
10122051 JN |
130 | static const struct ddi_buf_trans bdw_ddi_translations_hdmi[] = { |
131 | /* Idx NT mV d T mV df db */ | |
f8896f5d DW |
132 | { 0x00FFFFFF, 0x0007000E, 0x0 },/* 0: 400 400 0 */ |
133 | { 0x00D75FFF, 0x000E000A, 0x0 },/* 1: 400 600 3.5 */ | |
134 | { 0x00BEFFFF, 0x00140006, 0x0 },/* 2: 400 800 6 */ | |
135 | { 0x00FFFFFF, 0x0009000D, 0x0 },/* 3: 450 450 0 */ | |
136 | { 0x00FFFFFF, 0x000E000A, 0x0 },/* 4: 600 600 0 */ | |
137 | { 0x00D7FFFF, 0x00140006, 0x0 },/* 5: 600 800 2.5 */ | |
138 | { 0x80CB2FFF, 0x001B0002, 0x0 },/* 6: 600 1000 4.5 */ | |
139 | { 0x00FFFFFF, 0x00140006, 0x0 },/* 7: 800 800 0 */ | |
140 | { 0x80E79FFF, 0x001B0002, 0x0 },/* 8: 800 1000 2 */ | |
141 | { 0x80FFFFFF, 0x001B0002, 0x0 },/* 9: 1000 1000 0 */ | |
a26aa8ba DL |
142 | }; |
143 | ||
5f8b2531 | 144 | /* Skylake H and S */ |
7f88e3af | 145 | static const struct ddi_buf_trans skl_ddi_translations_dp[] = { |
f8896f5d DW |
146 | { 0x00002016, 0x000000A0, 0x0 }, |
147 | { 0x00005012, 0x0000009B, 0x0 }, | |
148 | { 0x00007011, 0x00000088, 0x0 }, | |
d7097cff | 149 | { 0x80009010, 0x000000C0, 0x1 }, |
f8896f5d DW |
150 | { 0x00002016, 0x0000009B, 0x0 }, |
151 | { 0x00005012, 0x00000088, 0x0 }, | |
d7097cff | 152 | { 0x80007011, 0x000000C0, 0x1 }, |
f8896f5d | 153 | { 0x00002016, 0x000000DF, 0x0 }, |
d7097cff | 154 | { 0x80005012, 0x000000C0, 0x1 }, |
7f88e3af DL |
155 | }; |
156 | ||
f8896f5d DW |
157 | /* Skylake U */ |
158 | static const struct ddi_buf_trans skl_u_ddi_translations_dp[] = { | |
5f8b2531 | 159 | { 0x0000201B, 0x000000A2, 0x0 }, |
f8896f5d | 160 | { 0x00005012, 0x00000088, 0x0 }, |
5ac90567 | 161 | { 0x80007011, 0x000000CD, 0x1 }, |
d7097cff | 162 | { 0x80009010, 0x000000C0, 0x1 }, |
5f8b2531 | 163 | { 0x0000201B, 0x0000009D, 0x0 }, |
d7097cff RV |
164 | { 0x80005012, 0x000000C0, 0x1 }, |
165 | { 0x80007011, 0x000000C0, 0x1 }, | |
f8896f5d | 166 | { 0x00002016, 0x00000088, 0x0 }, |
d7097cff | 167 | { 0x80005012, 0x000000C0, 0x1 }, |
f8896f5d DW |
168 | }; |
169 | ||
5f8b2531 RV |
170 | /* Skylake Y */ |
171 | static const struct ddi_buf_trans skl_y_ddi_translations_dp[] = { | |
f8896f5d DW |
172 | { 0x00000018, 0x000000A2, 0x0 }, |
173 | { 0x00005012, 0x00000088, 0x0 }, | |
5ac90567 | 174 | { 0x80007011, 0x000000CD, 0x3 }, |
d7097cff | 175 | { 0x80009010, 0x000000C0, 0x3 }, |
f8896f5d | 176 | { 0x00000018, 0x0000009D, 0x0 }, |
d7097cff RV |
177 | { 0x80005012, 0x000000C0, 0x3 }, |
178 | { 0x80007011, 0x000000C0, 0x3 }, | |
f8896f5d | 179 | { 0x00000018, 0x00000088, 0x0 }, |
d7097cff | 180 | { 0x80005012, 0x000000C0, 0x3 }, |
f8896f5d DW |
181 | }; |
182 | ||
0fdd4918 RV |
183 | /* Kabylake H and S */ |
184 | static const struct ddi_buf_trans kbl_ddi_translations_dp[] = { | |
185 | { 0x00002016, 0x000000A0, 0x0 }, | |
186 | { 0x00005012, 0x0000009B, 0x0 }, | |
187 | { 0x00007011, 0x00000088, 0x0 }, | |
188 | { 0x80009010, 0x000000C0, 0x1 }, | |
189 | { 0x00002016, 0x0000009B, 0x0 }, | |
190 | { 0x00005012, 0x00000088, 0x0 }, | |
191 | { 0x80007011, 0x000000C0, 0x1 }, | |
192 | { 0x00002016, 0x00000097, 0x0 }, | |
193 | { 0x80005012, 0x000000C0, 0x1 }, | |
194 | }; | |
195 | ||
196 | /* Kabylake U */ | |
197 | static const struct ddi_buf_trans kbl_u_ddi_translations_dp[] = { | |
198 | { 0x0000201B, 0x000000A1, 0x0 }, | |
199 | { 0x00005012, 0x00000088, 0x0 }, | |
200 | { 0x80007011, 0x000000CD, 0x3 }, | |
201 | { 0x80009010, 0x000000C0, 0x3 }, | |
202 | { 0x0000201B, 0x0000009D, 0x0 }, | |
203 | { 0x80005012, 0x000000C0, 0x3 }, | |
204 | { 0x80007011, 0x000000C0, 0x3 }, | |
205 | { 0x00002016, 0x0000004F, 0x0 }, | |
206 | { 0x80005012, 0x000000C0, 0x3 }, | |
207 | }; | |
208 | ||
209 | /* Kabylake Y */ | |
210 | static const struct ddi_buf_trans kbl_y_ddi_translations_dp[] = { | |
211 | { 0x00001017, 0x000000A1, 0x0 }, | |
212 | { 0x00005012, 0x00000088, 0x0 }, | |
213 | { 0x80007011, 0x000000CD, 0x3 }, | |
214 | { 0x8000800F, 0x000000C0, 0x3 }, | |
215 | { 0x00001017, 0x0000009D, 0x0 }, | |
216 | { 0x80005012, 0x000000C0, 0x3 }, | |
217 | { 0x80007011, 0x000000C0, 0x3 }, | |
218 | { 0x00001017, 0x0000004C, 0x0 }, | |
219 | { 0x80005012, 0x000000C0, 0x3 }, | |
220 | }; | |
221 | ||
f8896f5d | 222 | /* |
0fdd4918 | 223 | * Skylake/Kabylake H and S |
f8896f5d DW |
224 | * eDP 1.4 low vswing translation parameters |
225 | */ | |
7ad14a29 | 226 | static const struct ddi_buf_trans skl_ddi_translations_edp[] = { |
f8896f5d DW |
227 | { 0x00000018, 0x000000A8, 0x0 }, |
228 | { 0x00004013, 0x000000A9, 0x0 }, | |
229 | { 0x00007011, 0x000000A2, 0x0 }, | |
230 | { 0x00009010, 0x0000009C, 0x0 }, | |
231 | { 0x00000018, 0x000000A9, 0x0 }, | |
232 | { 0x00006013, 0x000000A2, 0x0 }, | |
233 | { 0x00007011, 0x000000A6, 0x0 }, | |
234 | { 0x00000018, 0x000000AB, 0x0 }, | |
235 | { 0x00007013, 0x0000009F, 0x0 }, | |
236 | { 0x00000018, 0x000000DF, 0x0 }, | |
237 | }; | |
238 | ||
239 | /* | |
0fdd4918 | 240 | * Skylake/Kabylake U |
f8896f5d DW |
241 | * eDP 1.4 low vswing translation parameters |
242 | */ | |
243 | static const struct ddi_buf_trans skl_u_ddi_translations_edp[] = { | |
244 | { 0x00000018, 0x000000A8, 0x0 }, | |
245 | { 0x00004013, 0x000000A9, 0x0 }, | |
246 | { 0x00007011, 0x000000A2, 0x0 }, | |
247 | { 0x00009010, 0x0000009C, 0x0 }, | |
248 | { 0x00000018, 0x000000A9, 0x0 }, | |
249 | { 0x00006013, 0x000000A2, 0x0 }, | |
250 | { 0x00007011, 0x000000A6, 0x0 }, | |
251 | { 0x00002016, 0x000000AB, 0x0 }, | |
252 | { 0x00005013, 0x0000009F, 0x0 }, | |
253 | { 0x00000018, 0x000000DF, 0x0 }, | |
7ad14a29 SJ |
254 | }; |
255 | ||
f8896f5d | 256 | /* |
0fdd4918 | 257 | * Skylake/Kabylake Y |
f8896f5d DW |
258 | * eDP 1.4 low vswing translation parameters |
259 | */ | |
5f8b2531 | 260 | static const struct ddi_buf_trans skl_y_ddi_translations_edp[] = { |
f8896f5d DW |
261 | { 0x00000018, 0x000000A8, 0x0 }, |
262 | { 0x00004013, 0x000000AB, 0x0 }, | |
263 | { 0x00007011, 0x000000A4, 0x0 }, | |
264 | { 0x00009010, 0x000000DF, 0x0 }, | |
265 | { 0x00000018, 0x000000AA, 0x0 }, | |
266 | { 0x00006013, 0x000000A4, 0x0 }, | |
267 | { 0x00007011, 0x0000009D, 0x0 }, | |
268 | { 0x00000018, 0x000000A0, 0x0 }, | |
269 | { 0x00006012, 0x000000DF, 0x0 }, | |
270 | { 0x00000018, 0x0000008A, 0x0 }, | |
271 | }; | |
7ad14a29 | 272 | |
0fdd4918 | 273 | /* Skylake/Kabylake U, H and S */ |
7f88e3af | 274 | static const struct ddi_buf_trans skl_ddi_translations_hdmi[] = { |
f8896f5d DW |
275 | { 0x00000018, 0x000000AC, 0x0 }, |
276 | { 0x00005012, 0x0000009D, 0x0 }, | |
277 | { 0x00007011, 0x00000088, 0x0 }, | |
278 | { 0x00000018, 0x000000A1, 0x0 }, | |
279 | { 0x00000018, 0x00000098, 0x0 }, | |
280 | { 0x00004013, 0x00000088, 0x0 }, | |
2e78416e | 281 | { 0x80006012, 0x000000CD, 0x1 }, |
f8896f5d | 282 | { 0x00000018, 0x000000DF, 0x0 }, |
2e78416e RV |
283 | { 0x80003015, 0x000000CD, 0x1 }, /* Default */ |
284 | { 0x80003015, 0x000000C0, 0x1 }, | |
285 | { 0x80000018, 0x000000C0, 0x1 }, | |
f8896f5d DW |
286 | }; |
287 | ||
0fdd4918 | 288 | /* Skylake/Kabylake Y */ |
5f8b2531 | 289 | static const struct ddi_buf_trans skl_y_ddi_translations_hdmi[] = { |
f8896f5d DW |
290 | { 0x00000018, 0x000000A1, 0x0 }, |
291 | { 0x00005012, 0x000000DF, 0x0 }, | |
2e78416e | 292 | { 0x80007011, 0x000000CB, 0x3 }, |
f8896f5d DW |
293 | { 0x00000018, 0x000000A4, 0x0 }, |
294 | { 0x00000018, 0x0000009D, 0x0 }, | |
295 | { 0x00004013, 0x00000080, 0x0 }, | |
2e78416e | 296 | { 0x80006013, 0x000000C0, 0x3 }, |
f8896f5d | 297 | { 0x00000018, 0x0000008A, 0x0 }, |
2e78416e RV |
298 | { 0x80003015, 0x000000C0, 0x3 }, /* Default */ |
299 | { 0x80003015, 0x000000C0, 0x3 }, | |
300 | { 0x80000018, 0x000000C0, 0x3 }, | |
7f88e3af DL |
301 | }; |
302 | ||
96fb9f9b VK |
303 | struct bxt_ddi_buf_trans { |
304 | u32 margin; /* swing value */ | |
305 | u32 scale; /* scale value */ | |
306 | u32 enable; /* scale enable */ | |
307 | u32 deemphasis; | |
308 | bool default_index; /* true if the entry represents default value */ | |
309 | }; | |
310 | ||
96fb9f9b VK |
311 | static const struct bxt_ddi_buf_trans bxt_ddi_translations_dp[] = { |
312 | /* Idx NT mV diff db */ | |
fe4c63c8 ID |
313 | { 52, 0x9A, 0, 128, true }, /* 0: 400 0 */ |
314 | { 78, 0x9A, 0, 85, false }, /* 1: 400 3.5 */ | |
315 | { 104, 0x9A, 0, 64, false }, /* 2: 400 6 */ | |
316 | { 154, 0x9A, 0, 43, false }, /* 3: 400 9.5 */ | |
317 | { 77, 0x9A, 0, 128, false }, /* 4: 600 0 */ | |
318 | { 116, 0x9A, 0, 85, false }, /* 5: 600 3.5 */ | |
319 | { 154, 0x9A, 0, 64, false }, /* 6: 600 6 */ | |
320 | { 102, 0x9A, 0, 128, false }, /* 7: 800 0 */ | |
321 | { 154, 0x9A, 0, 85, false }, /* 8: 800 3.5 */ | |
f8896f5d | 322 | { 154, 0x9A, 1, 128, false }, /* 9: 1200 0 */ |
96fb9f9b VK |
323 | }; |
324 | ||
d9d7000d SJ |
325 | static const struct bxt_ddi_buf_trans bxt_ddi_translations_edp[] = { |
326 | /* Idx NT mV diff db */ | |
327 | { 26, 0, 0, 128, false }, /* 0: 200 0 */ | |
328 | { 38, 0, 0, 112, false }, /* 1: 200 1.5 */ | |
329 | { 48, 0, 0, 96, false }, /* 2: 200 4 */ | |
330 | { 54, 0, 0, 69, false }, /* 3: 200 6 */ | |
331 | { 32, 0, 0, 128, false }, /* 4: 250 0 */ | |
332 | { 48, 0, 0, 104, false }, /* 5: 250 1.5 */ | |
333 | { 54, 0, 0, 85, false }, /* 6: 250 4 */ | |
334 | { 43, 0, 0, 128, false }, /* 7: 300 0 */ | |
335 | { 54, 0, 0, 101, false }, /* 8: 300 1.5 */ | |
336 | { 48, 0, 0, 128, false }, /* 9: 300 0 */ | |
337 | }; | |
338 | ||
96fb9f9b VK |
339 | /* BSpec has 2 recommended values - entries 0 and 8. |
340 | * Using the entry with higher vswing. | |
341 | */ | |
342 | static const struct bxt_ddi_buf_trans bxt_ddi_translations_hdmi[] = { | |
343 | /* Idx NT mV diff db */ | |
fe4c63c8 ID |
344 | { 52, 0x9A, 0, 128, false }, /* 0: 400 0 */ |
345 | { 52, 0x9A, 0, 85, false }, /* 1: 400 3.5 */ | |
346 | { 52, 0x9A, 0, 64, false }, /* 2: 400 6 */ | |
347 | { 42, 0x9A, 0, 43, false }, /* 3: 400 9.5 */ | |
348 | { 77, 0x9A, 0, 128, false }, /* 4: 600 0 */ | |
349 | { 77, 0x9A, 0, 85, false }, /* 5: 600 3.5 */ | |
350 | { 77, 0x9A, 0, 64, false }, /* 6: 600 6 */ | |
351 | { 102, 0x9A, 0, 128, false }, /* 7: 800 0 */ | |
352 | { 102, 0x9A, 0, 85, false }, /* 8: 800 3.5 */ | |
96fb9f9b VK |
353 | { 154, 0x9A, 1, 128, true }, /* 9: 1200 0 */ |
354 | }; | |
355 | ||
83fb7ab4 RV |
356 | struct cnl_ddi_buf_trans { |
357 | u32 dw2_swing_sel; | |
358 | u32 dw7_n_scalar; | |
359 | u32 dw4_cursor_coeff; | |
360 | u32 dw4_post_cursor_2; | |
361 | u32 dw4_post_cursor_1; | |
362 | }; | |
363 | ||
364 | /* Voltage Swing Programming for VccIO 0.85V for DP */ | |
365 | static const struct cnl_ddi_buf_trans cnl_ddi_translations_dp_0_85V[] = { | |
366 | /* NT mV Trans mV db */ | |
367 | { 0xA, 0x5D, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */ | |
368 | { 0xA, 0x6A, 0x38, 0x00, 0x07 }, /* 350 500 3.1 */ | |
369 | { 0xB, 0x7A, 0x32, 0x00, 0x0D }, /* 350 700 6.0 */ | |
370 | { 0x6, 0x7C, 0x2D, 0x00, 0x12 }, /* 350 900 8.2 */ | |
371 | { 0xA, 0x69, 0x3F, 0x00, 0x00 }, /* 500 500 0.0 */ | |
372 | { 0xB, 0x7A, 0x36, 0x00, 0x09 }, /* 500 700 2.9 */ | |
373 | { 0x6, 0x7C, 0x30, 0x00, 0x0F }, /* 500 900 5.1 */ | |
374 | { 0xB, 0x7D, 0x3C, 0x00, 0x03 }, /* 650 725 0.9 */ | |
375 | { 0x6, 0x7C, 0x34, 0x00, 0x0B }, /* 600 900 3.5 */ | |
376 | { 0x6, 0x7B, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */ | |
377 | }; | |
378 | ||
379 | /* Voltage Swing Programming for VccIO 0.85V for HDMI */ | |
380 | static const struct cnl_ddi_buf_trans cnl_ddi_translations_hdmi_0_85V[] = { | |
381 | /* NT mV Trans mV db */ | |
382 | { 0xA, 0x60, 0x3F, 0x00, 0x00 }, /* 450 450 0.0 */ | |
383 | { 0xB, 0x73, 0x36, 0x00, 0x09 }, /* 450 650 3.2 */ | |
384 | { 0x6, 0x7F, 0x31, 0x00, 0x0E }, /* 450 850 5.5 */ | |
385 | { 0xB, 0x73, 0x3F, 0x00, 0x00 }, /* 650 650 0.0 */ | |
386 | { 0x6, 0x7F, 0x37, 0x00, 0x08 }, /* 650 850 2.3 */ | |
387 | { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 850 850 0.0 */ | |
388 | { 0x6, 0x7F, 0x35, 0x00, 0x0A }, /* 600 850 3.0 */ | |
389 | }; | |
390 | ||
391 | /* Voltage Swing Programming for VccIO 0.85V for eDP */ | |
392 | static const struct cnl_ddi_buf_trans cnl_ddi_translations_edp_0_85V[] = { | |
393 | /* NT mV Trans mV db */ | |
394 | { 0xA, 0x66, 0x3A, 0x00, 0x05 }, /* 384 500 2.3 */ | |
395 | { 0x0, 0x7F, 0x38, 0x00, 0x07 }, /* 153 200 2.3 */ | |
396 | { 0x8, 0x7F, 0x38, 0x00, 0x07 }, /* 192 250 2.3 */ | |
397 | { 0x1, 0x7F, 0x38, 0x00, 0x07 }, /* 230 300 2.3 */ | |
398 | { 0x9, 0x7F, 0x38, 0x00, 0x07 }, /* 269 350 2.3 */ | |
399 | { 0xA, 0x66, 0x3C, 0x00, 0x03 }, /* 446 500 1.0 */ | |
400 | { 0xB, 0x70, 0x3C, 0x00, 0x03 }, /* 460 600 2.3 */ | |
401 | { 0xC, 0x75, 0x3C, 0x00, 0x03 }, /* 537 700 2.3 */ | |
402 | { 0x2, 0x7F, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */ | |
403 | }; | |
404 | ||
405 | /* Voltage Swing Programming for VccIO 0.95V for DP */ | |
406 | static const struct cnl_ddi_buf_trans cnl_ddi_translations_dp_0_95V[] = { | |
407 | /* NT mV Trans mV db */ | |
408 | { 0xA, 0x5D, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */ | |
409 | { 0xA, 0x6A, 0x38, 0x00, 0x07 }, /* 350 500 3.1 */ | |
410 | { 0xB, 0x7A, 0x32, 0x00, 0x0D }, /* 350 700 6.0 */ | |
411 | { 0x6, 0x7C, 0x2D, 0x00, 0x12 }, /* 350 900 8.2 */ | |
412 | { 0xA, 0x69, 0x3F, 0x00, 0x00 }, /* 500 500 0.0 */ | |
413 | { 0xB, 0x7A, 0x36, 0x00, 0x09 }, /* 500 700 2.9 */ | |
414 | { 0x6, 0x7C, 0x30, 0x00, 0x0F }, /* 500 900 5.1 */ | |
415 | { 0xB, 0x7D, 0x3C, 0x00, 0x03 }, /* 650 725 0.9 */ | |
416 | { 0x6, 0x7C, 0x34, 0x00, 0x0B }, /* 600 900 3.5 */ | |
417 | { 0x6, 0x7B, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */ | |
418 | }; | |
419 | ||
420 | /* Voltage Swing Programming for VccIO 0.95V for HDMI */ | |
421 | static const struct cnl_ddi_buf_trans cnl_ddi_translations_hdmi_0_95V[] = { | |
422 | /* NT mV Trans mV db */ | |
423 | { 0xA, 0x5C, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */ | |
424 | { 0xB, 0x69, 0x37, 0x00, 0x08 }, /* 400 600 3.5 */ | |
425 | { 0x5, 0x76, 0x31, 0x00, 0x0E }, /* 400 800 6.0 */ | |
426 | { 0xA, 0x5E, 0x3F, 0x00, 0x00 }, /* 450 450 0.0 */ | |
427 | { 0xB, 0x69, 0x3F, 0x00, 0x00 }, /* 600 600 0.0 */ | |
428 | { 0xB, 0x79, 0x35, 0x00, 0x0A }, /* 600 850 3.0 */ | |
429 | { 0x6, 0x7D, 0x32, 0x00, 0x0D }, /* 600 1000 4.4 */ | |
430 | { 0x5, 0x76, 0x3F, 0x00, 0x00 }, /* 800 800 0.0 */ | |
431 | { 0x6, 0x7D, 0x39, 0x00, 0x06 }, /* 800 1000 1.9 */ | |
432 | { 0x6, 0x7F, 0x39, 0x00, 0x06 }, /* 850 1050 1.8 */ | |
433 | { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 1050 1050 0.0 */ | |
434 | }; | |
435 | ||
436 | /* Voltage Swing Programming for VccIO 0.95V for eDP */ | |
437 | static const struct cnl_ddi_buf_trans cnl_ddi_translations_edp_0_95V[] = { | |
438 | /* NT mV Trans mV db */ | |
439 | { 0xA, 0x61, 0x3A, 0x00, 0x05 }, /* 384 500 2.3 */ | |
440 | { 0x0, 0x7F, 0x38, 0x00, 0x07 }, /* 153 200 2.3 */ | |
441 | { 0x8, 0x7F, 0x38, 0x00, 0x07 }, /* 192 250 2.3 */ | |
442 | { 0x1, 0x7F, 0x38, 0x00, 0x07 }, /* 230 300 2.3 */ | |
443 | { 0x9, 0x7F, 0x38, 0x00, 0x07 }, /* 269 350 2.3 */ | |
444 | { 0xA, 0x61, 0x3C, 0x00, 0x03 }, /* 446 500 1.0 */ | |
445 | { 0xB, 0x68, 0x39, 0x00, 0x06 }, /* 460 600 2.3 */ | |
446 | { 0xC, 0x6E, 0x39, 0x00, 0x06 }, /* 537 700 2.3 */ | |
447 | { 0x4, 0x7F, 0x3A, 0x00, 0x05 }, /* 460 600 2.3 */ | |
448 | { 0x2, 0x7F, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */ | |
449 | }; | |
450 | ||
451 | /* Voltage Swing Programming for VccIO 1.05V for DP */ | |
452 | static const struct cnl_ddi_buf_trans cnl_ddi_translations_dp_1_05V[] = { | |
453 | /* NT mV Trans mV db */ | |
454 | { 0xA, 0x58, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */ | |
455 | { 0xB, 0x64, 0x37, 0x00, 0x08 }, /* 400 600 3.5 */ | |
456 | { 0x5, 0x70, 0x31, 0x00, 0x0E }, /* 400 800 6.0 */ | |
457 | { 0x6, 0x7F, 0x2C, 0x00, 0x13 }, /* 400 1050 8.4 */ | |
458 | { 0xB, 0x64, 0x3F, 0x00, 0x00 }, /* 600 600 0.0 */ | |
459 | { 0x5, 0x73, 0x35, 0x00, 0x0A }, /* 600 850 3.0 */ | |
460 | { 0x6, 0x7F, 0x30, 0x00, 0x0F }, /* 550 1050 5.6 */ | |
461 | { 0x5, 0x76, 0x3E, 0x00, 0x01 }, /* 850 900 0.5 */ | |
462 | { 0x6, 0x7F, 0x36, 0x00, 0x09 }, /* 750 1050 2.9 */ | |
463 | { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 1050 1050 0.0 */ | |
464 | }; | |
465 | ||
466 | /* Voltage Swing Programming for VccIO 1.05V for HDMI */ | |
467 | static const struct cnl_ddi_buf_trans cnl_ddi_translations_hdmi_1_05V[] = { | |
468 | /* NT mV Trans mV db */ | |
469 | { 0xA, 0x58, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */ | |
470 | { 0xB, 0x64, 0x37, 0x00, 0x08 }, /* 400 600 3.5 */ | |
471 | { 0x5, 0x70, 0x31, 0x00, 0x0E }, /* 400 800 6.0 */ | |
472 | { 0xA, 0x5B, 0x3F, 0x00, 0x00 }, /* 450 450 0.0 */ | |
473 | { 0xB, 0x64, 0x3F, 0x00, 0x00 }, /* 600 600 0.0 */ | |
474 | { 0x5, 0x73, 0x35, 0x00, 0x0A }, /* 600 850 3.0 */ | |
475 | { 0x6, 0x7C, 0x32, 0x00, 0x0D }, /* 600 1000 4.4 */ | |
476 | { 0x5, 0x70, 0x3F, 0x00, 0x00 }, /* 800 800 0.0 */ | |
477 | { 0x6, 0x7C, 0x39, 0x00, 0x06 }, /* 800 1000 1.9 */ | |
478 | { 0x6, 0x7F, 0x39, 0x00, 0x06 }, /* 850 1050 1.8 */ | |
479 | { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 1050 1050 0.0 */ | |
480 | }; | |
481 | ||
482 | /* Voltage Swing Programming for VccIO 1.05V for eDP */ | |
483 | static const struct cnl_ddi_buf_trans cnl_ddi_translations_edp_1_05V[] = { | |
484 | /* NT mV Trans mV db */ | |
485 | { 0xA, 0x5E, 0x3A, 0x00, 0x05 }, /* 384 500 2.3 */ | |
486 | { 0x0, 0x7F, 0x38, 0x00, 0x07 }, /* 153 200 2.3 */ | |
487 | { 0x8, 0x7F, 0x38, 0x00, 0x07 }, /* 192 250 2.3 */ | |
488 | { 0x1, 0x7F, 0x38, 0x00, 0x07 }, /* 230 300 2.3 */ | |
489 | { 0x9, 0x7F, 0x38, 0x00, 0x07 }, /* 269 350 2.3 */ | |
490 | { 0xA, 0x5E, 0x3C, 0x00, 0x03 }, /* 446 500 1.0 */ | |
491 | { 0xB, 0x64, 0x39, 0x00, 0x06 }, /* 460 600 2.3 */ | |
492 | { 0xE, 0x6A, 0x39, 0x00, 0x06 }, /* 537 700 2.3 */ | |
493 | { 0x2, 0x7F, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */ | |
494 | }; | |
495 | ||
5a5d24dc | 496 | enum port intel_ddi_get_encoder_port(struct intel_encoder *encoder) |
fc914639 | 497 | { |
5a5d24dc | 498 | switch (encoder->type) { |
8cd21b7f | 499 | case INTEL_OUTPUT_DP_MST: |
5a5d24dc | 500 | return enc_to_mst(&encoder->base)->primary->port; |
cca0502b | 501 | case INTEL_OUTPUT_DP: |
8cd21b7f JN |
502 | case INTEL_OUTPUT_EDP: |
503 | case INTEL_OUTPUT_HDMI: | |
504 | case INTEL_OUTPUT_UNKNOWN: | |
5a5d24dc | 505 | return enc_to_dig_port(&encoder->base)->port; |
8cd21b7f | 506 | case INTEL_OUTPUT_ANALOG: |
5a5d24dc VS |
507 | return PORT_E; |
508 | default: | |
509 | MISSING_CASE(encoder->type); | |
510 | return PORT_A; | |
fc914639 PZ |
511 | } |
512 | } | |
513 | ||
a930acd9 VS |
514 | static const struct ddi_buf_trans * |
515 | bdw_get_buf_trans_edp(struct drm_i915_private *dev_priv, int *n_entries) | |
516 | { | |
517 | if (dev_priv->vbt.edp.low_vswing) { | |
518 | *n_entries = ARRAY_SIZE(bdw_ddi_translations_edp); | |
519 | return bdw_ddi_translations_edp; | |
520 | } else { | |
521 | *n_entries = ARRAY_SIZE(bdw_ddi_translations_dp); | |
522 | return bdw_ddi_translations_dp; | |
523 | } | |
524 | } | |
525 | ||
acee2998 | 526 | static const struct ddi_buf_trans * |
78ab0bae | 527 | skl_get_buf_trans_dp(struct drm_i915_private *dev_priv, int *n_entries) |
f8896f5d | 528 | { |
0fdd4918 | 529 | if (IS_SKL_ULX(dev_priv)) { |
5f8b2531 | 530 | *n_entries = ARRAY_SIZE(skl_y_ddi_translations_dp); |
acee2998 | 531 | return skl_y_ddi_translations_dp; |
0fdd4918 | 532 | } else if (IS_SKL_ULT(dev_priv)) { |
f8896f5d | 533 | *n_entries = ARRAY_SIZE(skl_u_ddi_translations_dp); |
acee2998 | 534 | return skl_u_ddi_translations_dp; |
f8896f5d | 535 | } else { |
f8896f5d | 536 | *n_entries = ARRAY_SIZE(skl_ddi_translations_dp); |
acee2998 | 537 | return skl_ddi_translations_dp; |
f8896f5d | 538 | } |
f8896f5d DW |
539 | } |
540 | ||
0fdd4918 RV |
541 | static const struct ddi_buf_trans * |
542 | kbl_get_buf_trans_dp(struct drm_i915_private *dev_priv, int *n_entries) | |
543 | { | |
544 | if (IS_KBL_ULX(dev_priv)) { | |
545 | *n_entries = ARRAY_SIZE(kbl_y_ddi_translations_dp); | |
546 | return kbl_y_ddi_translations_dp; | |
da411a48 | 547 | } else if (IS_KBL_ULT(dev_priv) || IS_CFL_ULT(dev_priv)) { |
0fdd4918 RV |
548 | *n_entries = ARRAY_SIZE(kbl_u_ddi_translations_dp); |
549 | return kbl_u_ddi_translations_dp; | |
550 | } else { | |
551 | *n_entries = ARRAY_SIZE(kbl_ddi_translations_dp); | |
552 | return kbl_ddi_translations_dp; | |
553 | } | |
554 | } | |
555 | ||
acee2998 | 556 | static const struct ddi_buf_trans * |
78ab0bae | 557 | skl_get_buf_trans_edp(struct drm_i915_private *dev_priv, int *n_entries) |
f8896f5d | 558 | { |
06411f08 | 559 | if (dev_priv->vbt.edp.low_vswing) { |
78ab0bae | 560 | if (IS_SKL_ULX(dev_priv) || IS_KBL_ULX(dev_priv)) { |
5f8b2531 | 561 | *n_entries = ARRAY_SIZE(skl_y_ddi_translations_edp); |
acee2998 | 562 | return skl_y_ddi_translations_edp; |
da411a48 RV |
563 | } else if (IS_SKL_ULT(dev_priv) || IS_KBL_ULT(dev_priv) || |
564 | IS_CFL_ULT(dev_priv)) { | |
f8896f5d | 565 | *n_entries = ARRAY_SIZE(skl_u_ddi_translations_edp); |
acee2998 | 566 | return skl_u_ddi_translations_edp; |
f8896f5d | 567 | } else { |
f8896f5d | 568 | *n_entries = ARRAY_SIZE(skl_ddi_translations_edp); |
acee2998 | 569 | return skl_ddi_translations_edp; |
f8896f5d DW |
570 | } |
571 | } | |
cd1101cb | 572 | |
da411a48 | 573 | if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) |
0fdd4918 RV |
574 | return kbl_get_buf_trans_dp(dev_priv, n_entries); |
575 | else | |
576 | return skl_get_buf_trans_dp(dev_priv, n_entries); | |
f8896f5d DW |
577 | } |
578 | ||
579 | static const struct ddi_buf_trans * | |
78ab0bae | 580 | skl_get_buf_trans_hdmi(struct drm_i915_private *dev_priv, int *n_entries) |
f8896f5d | 581 | { |
78ab0bae | 582 | if (IS_SKL_ULX(dev_priv) || IS_KBL_ULX(dev_priv)) { |
5f8b2531 | 583 | *n_entries = ARRAY_SIZE(skl_y_ddi_translations_hdmi); |
acee2998 | 584 | return skl_y_ddi_translations_hdmi; |
f8896f5d | 585 | } else { |
f8896f5d | 586 | *n_entries = ARRAY_SIZE(skl_ddi_translations_hdmi); |
acee2998 | 587 | return skl_ddi_translations_hdmi; |
f8896f5d | 588 | } |
f8896f5d DW |
589 | } |
590 | ||
8d8bb85e VS |
591 | static int intel_ddi_hdmi_level(struct drm_i915_private *dev_priv, enum port port) |
592 | { | |
593 | int n_hdmi_entries; | |
594 | int hdmi_level; | |
595 | int hdmi_default_entry; | |
596 | ||
597 | hdmi_level = dev_priv->vbt.ddi_port_info[port].hdmi_level_shift; | |
598 | ||
cc3f90f0 | 599 | if (IS_GEN9_LP(dev_priv)) |
8d8bb85e VS |
600 | return hdmi_level; |
601 | ||
b976dc53 | 602 | if (IS_GEN9_BC(dev_priv)) { |
8d8bb85e VS |
603 | skl_get_buf_trans_hdmi(dev_priv, &n_hdmi_entries); |
604 | hdmi_default_entry = 8; | |
605 | } else if (IS_BROADWELL(dev_priv)) { | |
606 | n_hdmi_entries = ARRAY_SIZE(bdw_ddi_translations_hdmi); | |
607 | hdmi_default_entry = 7; | |
608 | } else if (IS_HASWELL(dev_priv)) { | |
609 | n_hdmi_entries = ARRAY_SIZE(hsw_ddi_translations_hdmi); | |
610 | hdmi_default_entry = 6; | |
611 | } else { | |
612 | WARN(1, "ddi translation table missing\n"); | |
613 | n_hdmi_entries = ARRAY_SIZE(bdw_ddi_translations_hdmi); | |
614 | hdmi_default_entry = 7; | |
615 | } | |
616 | ||
617 | /* Choose a good default if VBT is badly populated */ | |
618 | if (hdmi_level == HDMI_LEVEL_SHIFT_UNKNOWN || | |
619 | hdmi_level >= n_hdmi_entries) | |
620 | hdmi_level = hdmi_default_entry; | |
621 | ||
622 | return hdmi_level; | |
623 | } | |
624 | ||
7d1c42e6 VS |
625 | static const struct ddi_buf_trans * |
626 | intel_ddi_get_buf_trans_dp(struct drm_i915_private *dev_priv, | |
627 | int *n_entries) | |
628 | { | |
da411a48 | 629 | if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) { |
7d1c42e6 VS |
630 | return kbl_get_buf_trans_dp(dev_priv, n_entries); |
631 | } else if (IS_SKYLAKE(dev_priv)) { | |
632 | return skl_get_buf_trans_dp(dev_priv, n_entries); | |
633 | } else if (IS_BROADWELL(dev_priv)) { | |
634 | *n_entries = ARRAY_SIZE(bdw_ddi_translations_dp); | |
635 | return bdw_ddi_translations_dp; | |
636 | } else if (IS_HASWELL(dev_priv)) { | |
637 | *n_entries = ARRAY_SIZE(hsw_ddi_translations_dp); | |
638 | return hsw_ddi_translations_dp; | |
639 | } | |
640 | ||
641 | *n_entries = 0; | |
642 | return NULL; | |
643 | } | |
644 | ||
645 | static const struct ddi_buf_trans * | |
646 | intel_ddi_get_buf_trans_edp(struct drm_i915_private *dev_priv, | |
647 | int *n_entries) | |
648 | { | |
da411a48 | 649 | if (IS_GEN9_BC(dev_priv)) { |
7d1c42e6 VS |
650 | return skl_get_buf_trans_edp(dev_priv, n_entries); |
651 | } else if (IS_BROADWELL(dev_priv)) { | |
652 | return bdw_get_buf_trans_edp(dev_priv, n_entries); | |
653 | } else if (IS_HASWELL(dev_priv)) { | |
654 | *n_entries = ARRAY_SIZE(hsw_ddi_translations_dp); | |
655 | return hsw_ddi_translations_dp; | |
656 | } | |
657 | ||
658 | *n_entries = 0; | |
659 | return NULL; | |
660 | } | |
661 | ||
662 | static const struct ddi_buf_trans * | |
663 | intel_ddi_get_buf_trans_fdi(struct drm_i915_private *dev_priv, | |
664 | int *n_entries) | |
665 | { | |
666 | if (IS_BROADWELL(dev_priv)) { | |
667 | *n_entries = ARRAY_SIZE(hsw_ddi_translations_fdi); | |
668 | return hsw_ddi_translations_fdi; | |
669 | } else if (IS_HASWELL(dev_priv)) { | |
670 | *n_entries = ARRAY_SIZE(hsw_ddi_translations_fdi); | |
671 | return hsw_ddi_translations_fdi; | |
672 | } | |
673 | ||
674 | *n_entries = 0; | |
675 | return NULL; | |
676 | } | |
677 | ||
e58623cb AR |
678 | /* |
679 | * Starting with Haswell, DDI port buffers must be programmed with correct | |
32bdc400 VS |
680 | * values in advance. This function programs the correct values for |
681 | * DP/eDP/FDI use cases. | |
45244b87 | 682 | */ |
d7c530b2 | 683 | static void intel_prepare_dp_ddi_buffers(struct intel_encoder *encoder) |
45244b87 | 684 | { |
6a7e4f99 | 685 | struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); |
75067dde | 686 | u32 iboost_bit = 0; |
7d1c42e6 | 687 | int i, n_entries; |
32bdc400 | 688 | enum port port = intel_ddi_get_encoder_port(encoder); |
10122051 | 689 | const struct ddi_buf_trans *ddi_translations; |
e58623cb | 690 | |
cc3f90f0 | 691 | if (IS_GEN9_LP(dev_priv)) |
96fb9f9b | 692 | return; |
6a7e4f99 | 693 | |
7d1c42e6 VS |
694 | switch (encoder->type) { |
695 | case INTEL_OUTPUT_EDP: | |
696 | ddi_translations = intel_ddi_get_buf_trans_edp(dev_priv, | |
697 | &n_entries); | |
698 | break; | |
699 | case INTEL_OUTPUT_DP: | |
700 | ddi_translations = intel_ddi_get_buf_trans_dp(dev_priv, | |
701 | &n_entries); | |
702 | break; | |
703 | case INTEL_OUTPUT_ANALOG: | |
704 | ddi_translations = intel_ddi_get_buf_trans_fdi(dev_priv, | |
705 | &n_entries); | |
706 | break; | |
707 | default: | |
708 | MISSING_CASE(encoder->type); | |
709 | return; | |
e58623cb AR |
710 | } |
711 | ||
b976dc53 | 712 | if (IS_GEN9_BC(dev_priv)) { |
0a91877c RV |
713 | /* If we're boosting the current, set bit 31 of trans1 */ |
714 | if (dev_priv->vbt.ddi_port_info[port].dp_boost_level) | |
715 | iboost_bit = DDI_BUF_BALANCE_LEG_ENABLE; | |
716 | ||
717 | if (WARN_ON(encoder->type == INTEL_OUTPUT_EDP && | |
718 | port != PORT_A && port != PORT_E && | |
7d1c42e6 VS |
719 | n_entries > 9)) |
720 | n_entries = 9; | |
300644c7 | 721 | } |
45244b87 | 722 | |
7d1c42e6 | 723 | for (i = 0; i < n_entries; i++) { |
9712e688 VS |
724 | I915_WRITE(DDI_BUF_TRANS_LO(port, i), |
725 | ddi_translations[i].trans1 | iboost_bit); | |
726 | I915_WRITE(DDI_BUF_TRANS_HI(port, i), | |
727 | ddi_translations[i].trans2); | |
45244b87 | 728 | } |
32bdc400 VS |
729 | } |
730 | ||
731 | /* | |
732 | * Starting with Haswell, DDI port buffers must be programmed with correct | |
733 | * values in advance. This function programs the correct values for | |
734 | * HDMI/DVI use cases. | |
735 | */ | |
736 | static void intel_prepare_hdmi_ddi_buffers(struct intel_encoder *encoder) | |
737 | { | |
738 | struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); | |
739 | u32 iboost_bit = 0; | |
740 | int n_hdmi_entries, hdmi_level; | |
741 | enum port port = intel_ddi_get_encoder_port(encoder); | |
742 | const struct ddi_buf_trans *ddi_translations_hdmi; | |
ce4dd49e | 743 | |
cc3f90f0 | 744 | if (IS_GEN9_LP(dev_priv)) |
ce3b7e9b DL |
745 | return; |
746 | ||
32bdc400 VS |
747 | hdmi_level = intel_ddi_hdmi_level(dev_priv, port); |
748 | ||
b976dc53 | 749 | if (IS_GEN9_BC(dev_priv)) { |
32bdc400 | 750 | ddi_translations_hdmi = skl_get_buf_trans_hdmi(dev_priv, &n_hdmi_entries); |
1edaaa2f | 751 | |
32bdc400 | 752 | /* If we're boosting the current, set bit 31 of trans1 */ |
1edaaa2f | 753 | if (dev_priv->vbt.ddi_port_info[port].hdmi_boost_level) |
32bdc400 VS |
754 | iboost_bit = DDI_BUF_BALANCE_LEG_ENABLE; |
755 | } else if (IS_BROADWELL(dev_priv)) { | |
756 | ddi_translations_hdmi = bdw_ddi_translations_hdmi; | |
757 | n_hdmi_entries = ARRAY_SIZE(bdw_ddi_translations_hdmi); | |
758 | } else if (IS_HASWELL(dev_priv)) { | |
759 | ddi_translations_hdmi = hsw_ddi_translations_hdmi; | |
760 | n_hdmi_entries = ARRAY_SIZE(hsw_ddi_translations_hdmi); | |
761 | } else { | |
762 | WARN(1, "ddi translation table missing\n"); | |
763 | ddi_translations_hdmi = bdw_ddi_translations_hdmi; | |
764 | n_hdmi_entries = ARRAY_SIZE(bdw_ddi_translations_hdmi); | |
765 | } | |
766 | ||
6acab15a | 767 | /* Entry 9 is for HDMI: */ |
ed9c77d2 | 768 | I915_WRITE(DDI_BUF_TRANS_LO(port, 9), |
9712e688 | 769 | ddi_translations_hdmi[hdmi_level].trans1 | iboost_bit); |
ed9c77d2 | 770 | I915_WRITE(DDI_BUF_TRANS_HI(port, 9), |
9712e688 | 771 | ddi_translations_hdmi[hdmi_level].trans2); |
45244b87 ED |
772 | } |
773 | ||
248138b5 PZ |
774 | static void intel_wait_ddi_buf_idle(struct drm_i915_private *dev_priv, |
775 | enum port port) | |
776 | { | |
f0f59a00 | 777 | i915_reg_t reg = DDI_BUF_CTL(port); |
248138b5 PZ |
778 | int i; |
779 | ||
3449ca85 | 780 | for (i = 0; i < 16; i++) { |
248138b5 PZ |
781 | udelay(1); |
782 | if (I915_READ(reg) & DDI_BUF_IS_IDLE) | |
783 | return; | |
784 | } | |
785 | DRM_ERROR("Timeout waiting for DDI BUF %c idle bit\n", port_name(port)); | |
786 | } | |
c82e4d26 | 787 | |
c856052a ACO |
788 | static uint32_t hsw_pll_to_ddi_pll_sel(struct intel_shared_dpll *pll) |
789 | { | |
790 | switch (pll->id) { | |
791 | case DPLL_ID_WRPLL1: | |
792 | return PORT_CLK_SEL_WRPLL1; | |
793 | case DPLL_ID_WRPLL2: | |
794 | return PORT_CLK_SEL_WRPLL2; | |
795 | case DPLL_ID_SPLL: | |
796 | return PORT_CLK_SEL_SPLL; | |
797 | case DPLL_ID_LCPLL_810: | |
798 | return PORT_CLK_SEL_LCPLL_810; | |
799 | case DPLL_ID_LCPLL_1350: | |
800 | return PORT_CLK_SEL_LCPLL_1350; | |
801 | case DPLL_ID_LCPLL_2700: | |
802 | return PORT_CLK_SEL_LCPLL_2700; | |
803 | default: | |
804 | MISSING_CASE(pll->id); | |
805 | return PORT_CLK_SEL_NONE; | |
806 | } | |
807 | } | |
808 | ||
c82e4d26 ED |
809 | /* Starting with Haswell, different DDI ports can work in FDI mode for |
810 | * connection to the PCH-located connectors. For this, it is necessary to train | |
811 | * both the DDI port and PCH receiver for the desired DDI buffer settings. | |
812 | * | |
813 | * The recommended port to work in FDI mode is DDI E, which we use here. Also, | |
814 | * please note that when FDI mode is active on DDI E, it shares 2 lines with | |
815 | * DDI A (which is used for eDP) | |
816 | */ | |
817 | ||
dc4a1094 ACO |
818 | void hsw_fdi_link_train(struct intel_crtc *crtc, |
819 | const struct intel_crtc_state *crtc_state) | |
c82e4d26 | 820 | { |
4cbe4b2b | 821 | struct drm_device *dev = crtc->base.dev; |
fac5e23e | 822 | struct drm_i915_private *dev_priv = to_i915(dev); |
6a7e4f99 | 823 | struct intel_encoder *encoder; |
c856052a | 824 | u32 temp, i, rx_ctl_val, ddi_pll_sel; |
c82e4d26 | 825 | |
4cbe4b2b | 826 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) { |
6a7e4f99 | 827 | WARN_ON(encoder->type != INTEL_OUTPUT_ANALOG); |
32bdc400 | 828 | intel_prepare_dp_ddi_buffers(encoder); |
6a7e4f99 VS |
829 | } |
830 | ||
04945641 PZ |
831 | /* Set the FDI_RX_MISC pwrdn lanes and the 2 workarounds listed at the |
832 | * mode set "sequence for CRT port" document: | |
833 | * - TP1 to TP2 time with the default value | |
834 | * - FDI delay to 90h | |
8693a824 DL |
835 | * |
836 | * WaFDIAutoLinkSetTimingOverrride:hsw | |
04945641 | 837 | */ |
eede3b53 | 838 | I915_WRITE(FDI_RX_MISC(PIPE_A), FDI_RX_PWRDN_LANE1_VAL(2) | |
04945641 PZ |
839 | FDI_RX_PWRDN_LANE0_VAL(2) | |
840 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
841 | ||
842 | /* Enable the PCH Receiver FDI PLL */ | |
3e68320e | 843 | rx_ctl_val = dev_priv->fdi_rx_config | FDI_RX_ENHANCE_FRAME_ENABLE | |
33d29b14 | 844 | FDI_RX_PLL_ENABLE | |
dc4a1094 | 845 | FDI_DP_PORT_WIDTH(crtc_state->fdi_lanes); |
eede3b53 VS |
846 | I915_WRITE(FDI_RX_CTL(PIPE_A), rx_ctl_val); |
847 | POSTING_READ(FDI_RX_CTL(PIPE_A)); | |
04945641 PZ |
848 | udelay(220); |
849 | ||
850 | /* Switch from Rawclk to PCDclk */ | |
851 | rx_ctl_val |= FDI_PCDCLK; | |
eede3b53 | 852 | I915_WRITE(FDI_RX_CTL(PIPE_A), rx_ctl_val); |
04945641 PZ |
853 | |
854 | /* Configure Port Clock Select */ | |
dc4a1094 | 855 | ddi_pll_sel = hsw_pll_to_ddi_pll_sel(crtc_state->shared_dpll); |
c856052a ACO |
856 | I915_WRITE(PORT_CLK_SEL(PORT_E), ddi_pll_sel); |
857 | WARN_ON(ddi_pll_sel != PORT_CLK_SEL_SPLL); | |
04945641 PZ |
858 | |
859 | /* Start the training iterating through available voltages and emphasis, | |
860 | * testing each value twice. */ | |
10122051 | 861 | for (i = 0; i < ARRAY_SIZE(hsw_ddi_translations_fdi) * 2; i++) { |
c82e4d26 ED |
862 | /* Configure DP_TP_CTL with auto-training */ |
863 | I915_WRITE(DP_TP_CTL(PORT_E), | |
864 | DP_TP_CTL_FDI_AUTOTRAIN | | |
865 | DP_TP_CTL_ENHANCED_FRAME_ENABLE | | |
866 | DP_TP_CTL_LINK_TRAIN_PAT1 | | |
867 | DP_TP_CTL_ENABLE); | |
868 | ||
876a8cdf DL |
869 | /* Configure and enable DDI_BUF_CTL for DDI E with next voltage. |
870 | * DDI E does not support port reversal, the functionality is | |
871 | * achieved on the PCH side in FDI_RX_CTL, so no need to set the | |
872 | * port reversal bit */ | |
c82e4d26 | 873 | I915_WRITE(DDI_BUF_CTL(PORT_E), |
04945641 | 874 | DDI_BUF_CTL_ENABLE | |
dc4a1094 | 875 | ((crtc_state->fdi_lanes - 1) << 1) | |
c5fe6a06 | 876 | DDI_BUF_TRANS_SELECT(i / 2)); |
04945641 | 877 | POSTING_READ(DDI_BUF_CTL(PORT_E)); |
c82e4d26 ED |
878 | |
879 | udelay(600); | |
880 | ||
04945641 | 881 | /* Program PCH FDI Receiver TU */ |
eede3b53 | 882 | I915_WRITE(FDI_RX_TUSIZE1(PIPE_A), TU_SIZE(64)); |
04945641 PZ |
883 | |
884 | /* Enable PCH FDI Receiver with auto-training */ | |
885 | rx_ctl_val |= FDI_RX_ENABLE | FDI_LINK_TRAIN_AUTO; | |
eede3b53 VS |
886 | I915_WRITE(FDI_RX_CTL(PIPE_A), rx_ctl_val); |
887 | POSTING_READ(FDI_RX_CTL(PIPE_A)); | |
04945641 PZ |
888 | |
889 | /* Wait for FDI receiver lane calibration */ | |
890 | udelay(30); | |
891 | ||
892 | /* Unset FDI_RX_MISC pwrdn lanes */ | |
eede3b53 | 893 | temp = I915_READ(FDI_RX_MISC(PIPE_A)); |
04945641 | 894 | temp &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); |
eede3b53 VS |
895 | I915_WRITE(FDI_RX_MISC(PIPE_A), temp); |
896 | POSTING_READ(FDI_RX_MISC(PIPE_A)); | |
04945641 PZ |
897 | |
898 | /* Wait for FDI auto training time */ | |
899 | udelay(5); | |
c82e4d26 ED |
900 | |
901 | temp = I915_READ(DP_TP_STATUS(PORT_E)); | |
902 | if (temp & DP_TP_STATUS_AUTOTRAIN_DONE) { | |
04945641 | 903 | DRM_DEBUG_KMS("FDI link training done on step %d\n", i); |
a308ccb3 VS |
904 | break; |
905 | } | |
c82e4d26 | 906 | |
a308ccb3 VS |
907 | /* |
908 | * Leave things enabled even if we failed to train FDI. | |
909 | * Results in less fireworks from the state checker. | |
910 | */ | |
911 | if (i == ARRAY_SIZE(hsw_ddi_translations_fdi) * 2 - 1) { | |
912 | DRM_ERROR("FDI link training failed!\n"); | |
913 | break; | |
c82e4d26 | 914 | } |
04945641 | 915 | |
5b421c57 VS |
916 | rx_ctl_val &= ~FDI_RX_ENABLE; |
917 | I915_WRITE(FDI_RX_CTL(PIPE_A), rx_ctl_val); | |
918 | POSTING_READ(FDI_RX_CTL(PIPE_A)); | |
919 | ||
248138b5 PZ |
920 | temp = I915_READ(DDI_BUF_CTL(PORT_E)); |
921 | temp &= ~DDI_BUF_CTL_ENABLE; | |
922 | I915_WRITE(DDI_BUF_CTL(PORT_E), temp); | |
923 | POSTING_READ(DDI_BUF_CTL(PORT_E)); | |
924 | ||
04945641 | 925 | /* Disable DP_TP_CTL and FDI_RX_CTL and retry */ |
248138b5 PZ |
926 | temp = I915_READ(DP_TP_CTL(PORT_E)); |
927 | temp &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK); | |
928 | temp |= DP_TP_CTL_LINK_TRAIN_PAT1; | |
929 | I915_WRITE(DP_TP_CTL(PORT_E), temp); | |
930 | POSTING_READ(DP_TP_CTL(PORT_E)); | |
931 | ||
932 | intel_wait_ddi_buf_idle(dev_priv, PORT_E); | |
04945641 | 933 | |
04945641 | 934 | /* Reset FDI_RX_MISC pwrdn lanes */ |
eede3b53 | 935 | temp = I915_READ(FDI_RX_MISC(PIPE_A)); |
04945641 PZ |
936 | temp &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); |
937 | temp |= FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2); | |
eede3b53 VS |
938 | I915_WRITE(FDI_RX_MISC(PIPE_A), temp); |
939 | POSTING_READ(FDI_RX_MISC(PIPE_A)); | |
c82e4d26 ED |
940 | } |
941 | ||
a308ccb3 VS |
942 | /* Enable normal pixel sending for FDI */ |
943 | I915_WRITE(DP_TP_CTL(PORT_E), | |
944 | DP_TP_CTL_FDI_AUTOTRAIN | | |
945 | DP_TP_CTL_LINK_TRAIN_NORMAL | | |
946 | DP_TP_CTL_ENHANCED_FRAME_ENABLE | | |
947 | DP_TP_CTL_ENABLE); | |
c82e4d26 | 948 | } |
0e72a5b5 | 949 | |
d7c530b2 | 950 | static void intel_ddi_init_dp_buf_reg(struct intel_encoder *encoder) |
44905a27 DA |
951 | { |
952 | struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base); | |
953 | struct intel_digital_port *intel_dig_port = | |
954 | enc_to_dig_port(&encoder->base); | |
955 | ||
956 | intel_dp->DP = intel_dig_port->saved_port_bits | | |
c5fe6a06 | 957 | DDI_BUF_CTL_ENABLE | DDI_BUF_TRANS_SELECT(0); |
901c2daf | 958 | intel_dp->DP |= DDI_PORT_WIDTH(intel_dp->lane_count); |
44905a27 DA |
959 | } |
960 | ||
8d9ddbcb | 961 | static struct intel_encoder * |
e9ce1a62 | 962 | intel_ddi_get_crtc_encoder(struct intel_crtc *crtc) |
8d9ddbcb | 963 | { |
e9ce1a62 | 964 | struct drm_device *dev = crtc->base.dev; |
1524e93e | 965 | struct intel_encoder *encoder, *ret = NULL; |
8d9ddbcb PZ |
966 | int num_encoders = 0; |
967 | ||
1524e93e SS |
968 | for_each_encoder_on_crtc(dev, &crtc->base, encoder) { |
969 | ret = encoder; | |
8d9ddbcb PZ |
970 | num_encoders++; |
971 | } | |
972 | ||
973 | if (num_encoders != 1) | |
84f44ce7 | 974 | WARN(1, "%d encoders on crtc for pipe %c\n", num_encoders, |
e9ce1a62 | 975 | pipe_name(crtc->pipe)); |
8d9ddbcb PZ |
976 | |
977 | BUG_ON(ret == NULL); | |
978 | return ret; | |
979 | } | |
980 | ||
44a126ba PZ |
981 | /* Finds the only possible encoder associated with the given CRTC. */ |
982 | struct intel_encoder * | |
3165c074 | 983 | intel_ddi_get_crtc_new_encoder(struct intel_crtc_state *crtc_state) |
d0737e1d | 984 | { |
3165c074 ACO |
985 | struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); |
986 | struct intel_encoder *ret = NULL; | |
987 | struct drm_atomic_state *state; | |
da3ced29 ACO |
988 | struct drm_connector *connector; |
989 | struct drm_connector_state *connector_state; | |
d0737e1d | 990 | int num_encoders = 0; |
3165c074 | 991 | int i; |
d0737e1d | 992 | |
3165c074 ACO |
993 | state = crtc_state->base.state; |
994 | ||
b77c7a90 | 995 | for_each_new_connector_in_state(state, connector, connector_state, i) { |
da3ced29 | 996 | if (connector_state->crtc != crtc_state->base.crtc) |
3165c074 ACO |
997 | continue; |
998 | ||
da3ced29 | 999 | ret = to_intel_encoder(connector_state->best_encoder); |
3165c074 | 1000 | num_encoders++; |
d0737e1d ACO |
1001 | } |
1002 | ||
1003 | WARN(num_encoders != 1, "%d encoders on crtc for pipe %c\n", num_encoders, | |
1004 | pipe_name(crtc->pipe)); | |
1005 | ||
1006 | BUG_ON(ret == NULL); | |
1007 | return ret; | |
1008 | } | |
1009 | ||
1c0b85c5 | 1010 | #define LC_FREQ 2700 |
1c0b85c5 | 1011 | |
f0f59a00 VS |
1012 | static int hsw_ddi_calc_wrpll_link(struct drm_i915_private *dev_priv, |
1013 | i915_reg_t reg) | |
11578553 JB |
1014 | { |
1015 | int refclk = LC_FREQ; | |
1016 | int n, p, r; | |
1017 | u32 wrpll; | |
1018 | ||
1019 | wrpll = I915_READ(reg); | |
114fe488 DV |
1020 | switch (wrpll & WRPLL_PLL_REF_MASK) { |
1021 | case WRPLL_PLL_SSC: | |
1022 | case WRPLL_PLL_NON_SSC: | |
11578553 JB |
1023 | /* |
1024 | * We could calculate spread here, but our checking | |
1025 | * code only cares about 5% accuracy, and spread is a max of | |
1026 | * 0.5% downspread. | |
1027 | */ | |
1028 | refclk = 135; | |
1029 | break; | |
114fe488 | 1030 | case WRPLL_PLL_LCPLL: |
11578553 JB |
1031 | refclk = LC_FREQ; |
1032 | break; | |
1033 | default: | |
1034 | WARN(1, "bad wrpll refclk\n"); | |
1035 | return 0; | |
1036 | } | |
1037 | ||
1038 | r = wrpll & WRPLL_DIVIDER_REF_MASK; | |
1039 | p = (wrpll & WRPLL_DIVIDER_POST_MASK) >> WRPLL_DIVIDER_POST_SHIFT; | |
1040 | n = (wrpll & WRPLL_DIVIDER_FB_MASK) >> WRPLL_DIVIDER_FB_SHIFT; | |
1041 | ||
20f0ec16 JB |
1042 | /* Convert to KHz, p & r have a fixed point portion */ |
1043 | return (refclk * n * 100) / (p * r); | |
11578553 JB |
1044 | } |
1045 | ||
540e732c S |
1046 | static int skl_calc_wrpll_link(struct drm_i915_private *dev_priv, |
1047 | uint32_t dpll) | |
1048 | { | |
f0f59a00 | 1049 | i915_reg_t cfgcr1_reg, cfgcr2_reg; |
540e732c S |
1050 | uint32_t cfgcr1_val, cfgcr2_val; |
1051 | uint32_t p0, p1, p2, dco_freq; | |
1052 | ||
923c1241 VS |
1053 | cfgcr1_reg = DPLL_CFGCR1(dpll); |
1054 | cfgcr2_reg = DPLL_CFGCR2(dpll); | |
540e732c S |
1055 | |
1056 | cfgcr1_val = I915_READ(cfgcr1_reg); | |
1057 | cfgcr2_val = I915_READ(cfgcr2_reg); | |
1058 | ||
1059 | p0 = cfgcr2_val & DPLL_CFGCR2_PDIV_MASK; | |
1060 | p2 = cfgcr2_val & DPLL_CFGCR2_KDIV_MASK; | |
1061 | ||
1062 | if (cfgcr2_val & DPLL_CFGCR2_QDIV_MODE(1)) | |
1063 | p1 = (cfgcr2_val & DPLL_CFGCR2_QDIV_RATIO_MASK) >> 8; | |
1064 | else | |
1065 | p1 = 1; | |
1066 | ||
1067 | ||
1068 | switch (p0) { | |
1069 | case DPLL_CFGCR2_PDIV_1: | |
1070 | p0 = 1; | |
1071 | break; | |
1072 | case DPLL_CFGCR2_PDIV_2: | |
1073 | p0 = 2; | |
1074 | break; | |
1075 | case DPLL_CFGCR2_PDIV_3: | |
1076 | p0 = 3; | |
1077 | break; | |
1078 | case DPLL_CFGCR2_PDIV_7: | |
1079 | p0 = 7; | |
1080 | break; | |
1081 | } | |
1082 | ||
1083 | switch (p2) { | |
1084 | case DPLL_CFGCR2_KDIV_5: | |
1085 | p2 = 5; | |
1086 | break; | |
1087 | case DPLL_CFGCR2_KDIV_2: | |
1088 | p2 = 2; | |
1089 | break; | |
1090 | case DPLL_CFGCR2_KDIV_3: | |
1091 | p2 = 3; | |
1092 | break; | |
1093 | case DPLL_CFGCR2_KDIV_1: | |
1094 | p2 = 1; | |
1095 | break; | |
1096 | } | |
1097 | ||
1098 | dco_freq = (cfgcr1_val & DPLL_CFGCR1_DCO_INTEGER_MASK) * 24 * 1000; | |
1099 | ||
1100 | dco_freq += (((cfgcr1_val & DPLL_CFGCR1_DCO_FRACTION_MASK) >> 9) * 24 * | |
1101 | 1000) / 0x8000; | |
1102 | ||
1103 | return dco_freq / (p0 * p1 * p2 * 5); | |
1104 | } | |
1105 | ||
a9701a89 RV |
1106 | static int cnl_calc_wrpll_link(struct drm_i915_private *dev_priv, |
1107 | uint32_t pll_id) | |
1108 | { | |
1109 | uint32_t cfgcr0, cfgcr1; | |
1110 | uint32_t p0, p1, p2, dco_freq, ref_clock; | |
1111 | ||
1112 | cfgcr0 = I915_READ(CNL_DPLL_CFGCR0(pll_id)); | |
1113 | cfgcr1 = I915_READ(CNL_DPLL_CFGCR1(pll_id)); | |
1114 | ||
1115 | p0 = cfgcr1 & DPLL_CFGCR1_PDIV_MASK; | |
1116 | p2 = cfgcr1 & DPLL_CFGCR1_KDIV_MASK; | |
1117 | ||
1118 | if (cfgcr1 & DPLL_CFGCR1_QDIV_MODE(1)) | |
1119 | p1 = (cfgcr1 & DPLL_CFGCR1_QDIV_RATIO_MASK) >> | |
1120 | DPLL_CFGCR1_QDIV_RATIO_SHIFT; | |
1121 | else | |
1122 | p1 = 1; | |
1123 | ||
1124 | ||
1125 | switch (p0) { | |
1126 | case DPLL_CFGCR1_PDIV_2: | |
1127 | p0 = 2; | |
1128 | break; | |
1129 | case DPLL_CFGCR1_PDIV_3: | |
1130 | p0 = 3; | |
1131 | break; | |
1132 | case DPLL_CFGCR1_PDIV_5: | |
1133 | p0 = 5; | |
1134 | break; | |
1135 | case DPLL_CFGCR1_PDIV_7: | |
1136 | p0 = 7; | |
1137 | break; | |
1138 | } | |
1139 | ||
1140 | switch (p2) { | |
1141 | case DPLL_CFGCR1_KDIV_1: | |
1142 | p2 = 1; | |
1143 | break; | |
1144 | case DPLL_CFGCR1_KDIV_2: | |
1145 | p2 = 2; | |
1146 | break; | |
1147 | case DPLL_CFGCR1_KDIV_4: | |
1148 | p2 = 4; | |
1149 | break; | |
1150 | } | |
1151 | ||
1152 | ref_clock = dev_priv->cdclk.hw.ref; | |
1153 | ||
1154 | dco_freq = (cfgcr0 & DPLL_CFGCR0_DCO_INTEGER_MASK) * ref_clock; | |
1155 | ||
1156 | dco_freq += (((cfgcr0 & DPLL_CFGCR0_DCO_FRACTION_MASK) >> | |
1157 | DPLL_CFGCR0_DCO_FRAC_SHIFT) * ref_clock) / 0x8000; | |
1158 | ||
1159 | return dco_freq / (p0 * p1 * p2 * 5); | |
1160 | } | |
1161 | ||
398a017e VS |
1162 | static void ddi_dotclock_get(struct intel_crtc_state *pipe_config) |
1163 | { | |
1164 | int dotclock; | |
1165 | ||
1166 | if (pipe_config->has_pch_encoder) | |
1167 | dotclock = intel_dotclock_calculate(pipe_config->port_clock, | |
1168 | &pipe_config->fdi_m_n); | |
37a5650b | 1169 | else if (intel_crtc_has_dp_encoder(pipe_config)) |
398a017e VS |
1170 | dotclock = intel_dotclock_calculate(pipe_config->port_clock, |
1171 | &pipe_config->dp_m_n); | |
1172 | else if (pipe_config->has_hdmi_sink && pipe_config->pipe_bpp == 36) | |
1173 | dotclock = pipe_config->port_clock * 2 / 3; | |
1174 | else | |
1175 | dotclock = pipe_config->port_clock; | |
1176 | ||
1177 | if (pipe_config->pixel_multiplier) | |
1178 | dotclock /= pipe_config->pixel_multiplier; | |
1179 | ||
1180 | pipe_config->base.adjusted_mode.crtc_clock = dotclock; | |
1181 | } | |
540e732c | 1182 | |
a9701a89 RV |
1183 | static void cnl_ddi_clock_get(struct intel_encoder *encoder, |
1184 | struct intel_crtc_state *pipe_config) | |
1185 | { | |
1186 | struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); | |
1187 | int link_clock = 0; | |
1188 | uint32_t cfgcr0, pll_id; | |
1189 | ||
1190 | pll_id = intel_get_shared_dpll_id(dev_priv, pipe_config->shared_dpll); | |
1191 | ||
1192 | cfgcr0 = I915_READ(CNL_DPLL_CFGCR0(pll_id)); | |
1193 | ||
1194 | if (cfgcr0 & DPLL_CFGCR0_HDMI_MODE) { | |
1195 | link_clock = cnl_calc_wrpll_link(dev_priv, pll_id); | |
1196 | } else { | |
1197 | link_clock = cfgcr0 & DPLL_CFGCR0_LINK_RATE_MASK; | |
1198 | ||
1199 | switch (link_clock) { | |
1200 | case DPLL_CFGCR0_LINK_RATE_810: | |
1201 | link_clock = 81000; | |
1202 | break; | |
1203 | case DPLL_CFGCR0_LINK_RATE_1080: | |
1204 | link_clock = 108000; | |
1205 | break; | |
1206 | case DPLL_CFGCR0_LINK_RATE_1350: | |
1207 | link_clock = 135000; | |
1208 | break; | |
1209 | case DPLL_CFGCR0_LINK_RATE_1620: | |
1210 | link_clock = 162000; | |
1211 | break; | |
1212 | case DPLL_CFGCR0_LINK_RATE_2160: | |
1213 | link_clock = 216000; | |
1214 | break; | |
1215 | case DPLL_CFGCR0_LINK_RATE_2700: | |
1216 | link_clock = 270000; | |
1217 | break; | |
1218 | case DPLL_CFGCR0_LINK_RATE_3240: | |
1219 | link_clock = 324000; | |
1220 | break; | |
1221 | case DPLL_CFGCR0_LINK_RATE_4050: | |
1222 | link_clock = 405000; | |
1223 | break; | |
1224 | default: | |
1225 | WARN(1, "Unsupported link rate\n"); | |
1226 | break; | |
1227 | } | |
1228 | link_clock *= 2; | |
1229 | } | |
1230 | ||
1231 | pipe_config->port_clock = link_clock; | |
1232 | ||
1233 | ddi_dotclock_get(pipe_config); | |
1234 | } | |
1235 | ||
540e732c | 1236 | static void skl_ddi_clock_get(struct intel_encoder *encoder, |
5cec258b | 1237 | struct intel_crtc_state *pipe_config) |
540e732c | 1238 | { |
fac5e23e | 1239 | struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); |
540e732c S |
1240 | int link_clock = 0; |
1241 | uint32_t dpll_ctl1, dpll; | |
1242 | ||
c856052a | 1243 | dpll = intel_get_shared_dpll_id(dev_priv, pipe_config->shared_dpll); |
540e732c S |
1244 | |
1245 | dpll_ctl1 = I915_READ(DPLL_CTRL1); | |
1246 | ||
1247 | if (dpll_ctl1 & DPLL_CTRL1_HDMI_MODE(dpll)) { | |
1248 | link_clock = skl_calc_wrpll_link(dev_priv, dpll); | |
1249 | } else { | |
71cd8423 DL |
1250 | link_clock = dpll_ctl1 & DPLL_CTRL1_LINK_RATE_MASK(dpll); |
1251 | link_clock >>= DPLL_CTRL1_LINK_RATE_SHIFT(dpll); | |
540e732c S |
1252 | |
1253 | switch (link_clock) { | |
71cd8423 | 1254 | case DPLL_CTRL1_LINK_RATE_810: |
540e732c S |
1255 | link_clock = 81000; |
1256 | break; | |
71cd8423 | 1257 | case DPLL_CTRL1_LINK_RATE_1080: |
a8f3ef61 SJ |
1258 | link_clock = 108000; |
1259 | break; | |
71cd8423 | 1260 | case DPLL_CTRL1_LINK_RATE_1350: |
540e732c S |
1261 | link_clock = 135000; |
1262 | break; | |
71cd8423 | 1263 | case DPLL_CTRL1_LINK_RATE_1620: |
a8f3ef61 SJ |
1264 | link_clock = 162000; |
1265 | break; | |
71cd8423 | 1266 | case DPLL_CTRL1_LINK_RATE_2160: |
a8f3ef61 SJ |
1267 | link_clock = 216000; |
1268 | break; | |
71cd8423 | 1269 | case DPLL_CTRL1_LINK_RATE_2700: |
540e732c S |
1270 | link_clock = 270000; |
1271 | break; | |
1272 | default: | |
1273 | WARN(1, "Unsupported link rate\n"); | |
1274 | break; | |
1275 | } | |
1276 | link_clock *= 2; | |
1277 | } | |
1278 | ||
1279 | pipe_config->port_clock = link_clock; | |
1280 | ||
398a017e | 1281 | ddi_dotclock_get(pipe_config); |
540e732c S |
1282 | } |
1283 | ||
3d51278a | 1284 | static void hsw_ddi_clock_get(struct intel_encoder *encoder, |
5cec258b | 1285 | struct intel_crtc_state *pipe_config) |
11578553 | 1286 | { |
fac5e23e | 1287 | struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); |
11578553 JB |
1288 | int link_clock = 0; |
1289 | u32 val, pll; | |
1290 | ||
c856052a | 1291 | val = hsw_pll_to_ddi_pll_sel(pipe_config->shared_dpll); |
11578553 JB |
1292 | switch (val & PORT_CLK_SEL_MASK) { |
1293 | case PORT_CLK_SEL_LCPLL_810: | |
1294 | link_clock = 81000; | |
1295 | break; | |
1296 | case PORT_CLK_SEL_LCPLL_1350: | |
1297 | link_clock = 135000; | |
1298 | break; | |
1299 | case PORT_CLK_SEL_LCPLL_2700: | |
1300 | link_clock = 270000; | |
1301 | break; | |
1302 | case PORT_CLK_SEL_WRPLL1: | |
01403de3 | 1303 | link_clock = hsw_ddi_calc_wrpll_link(dev_priv, WRPLL_CTL(0)); |
11578553 JB |
1304 | break; |
1305 | case PORT_CLK_SEL_WRPLL2: | |
01403de3 | 1306 | link_clock = hsw_ddi_calc_wrpll_link(dev_priv, WRPLL_CTL(1)); |
11578553 JB |
1307 | break; |
1308 | case PORT_CLK_SEL_SPLL: | |
1309 | pll = I915_READ(SPLL_CTL) & SPLL_PLL_FREQ_MASK; | |
1310 | if (pll == SPLL_PLL_FREQ_810MHz) | |
1311 | link_clock = 81000; | |
1312 | else if (pll == SPLL_PLL_FREQ_1350MHz) | |
1313 | link_clock = 135000; | |
1314 | else if (pll == SPLL_PLL_FREQ_2700MHz) | |
1315 | link_clock = 270000; | |
1316 | else { | |
1317 | WARN(1, "bad spll freq\n"); | |
1318 | return; | |
1319 | } | |
1320 | break; | |
1321 | default: | |
1322 | WARN(1, "bad port clock sel\n"); | |
1323 | return; | |
1324 | } | |
1325 | ||
1326 | pipe_config->port_clock = link_clock * 2; | |
1327 | ||
398a017e | 1328 | ddi_dotclock_get(pipe_config); |
11578553 JB |
1329 | } |
1330 | ||
977bb38d S |
1331 | static int bxt_calc_pll_link(struct drm_i915_private *dev_priv, |
1332 | enum intel_dpll_id dpll) | |
1333 | { | |
aa610dcb ID |
1334 | struct intel_shared_dpll *pll; |
1335 | struct intel_dpll_hw_state *state; | |
9e2c8475 | 1336 | struct dpll clock; |
aa610dcb ID |
1337 | |
1338 | /* For DDI ports we always use a shared PLL. */ | |
1339 | if (WARN_ON(dpll == DPLL_ID_PRIVATE)) | |
1340 | return 0; | |
1341 | ||
1342 | pll = &dev_priv->shared_dplls[dpll]; | |
2c42e535 | 1343 | state = &pll->state.hw_state; |
aa610dcb ID |
1344 | |
1345 | clock.m1 = 2; | |
1346 | clock.m2 = (state->pll0 & PORT_PLL_M2_MASK) << 22; | |
1347 | if (state->pll3 & PORT_PLL_M2_FRAC_ENABLE) | |
1348 | clock.m2 |= state->pll2 & PORT_PLL_M2_FRAC_MASK; | |
1349 | clock.n = (state->pll1 & PORT_PLL_N_MASK) >> PORT_PLL_N_SHIFT; | |
1350 | clock.p1 = (state->ebb0 & PORT_PLL_P1_MASK) >> PORT_PLL_P1_SHIFT; | |
1351 | clock.p2 = (state->ebb0 & PORT_PLL_P2_MASK) >> PORT_PLL_P2_SHIFT; | |
1352 | ||
1353 | return chv_calc_dpll_params(100000, &clock); | |
977bb38d S |
1354 | } |
1355 | ||
1356 | static void bxt_ddi_clock_get(struct intel_encoder *encoder, | |
1357 | struct intel_crtc_state *pipe_config) | |
1358 | { | |
fac5e23e | 1359 | struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); |
977bb38d S |
1360 | enum port port = intel_ddi_get_encoder_port(encoder); |
1361 | uint32_t dpll = port; | |
1362 | ||
398a017e | 1363 | pipe_config->port_clock = bxt_calc_pll_link(dev_priv, dpll); |
977bb38d | 1364 | |
398a017e | 1365 | ddi_dotclock_get(pipe_config); |
977bb38d S |
1366 | } |
1367 | ||
3d51278a | 1368 | void intel_ddi_clock_get(struct intel_encoder *encoder, |
5cec258b | 1369 | struct intel_crtc_state *pipe_config) |
3d51278a | 1370 | { |
0853723b | 1371 | struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); |
22606a18 | 1372 | |
0853723b | 1373 | if (INTEL_GEN(dev_priv) <= 8) |
22606a18 | 1374 | hsw_ddi_clock_get(encoder, pipe_config); |
b976dc53 | 1375 | else if (IS_GEN9_BC(dev_priv)) |
22606a18 | 1376 | skl_ddi_clock_get(encoder, pipe_config); |
cc3f90f0 | 1377 | else if (IS_GEN9_LP(dev_priv)) |
977bb38d | 1378 | bxt_ddi_clock_get(encoder, pipe_config); |
a9701a89 RV |
1379 | else if (IS_CANNONLAKE(dev_priv)) |
1380 | cnl_ddi_clock_get(encoder, pipe_config); | |
3d51278a DV |
1381 | } |
1382 | ||
3dc38eea | 1383 | void intel_ddi_set_pipe_settings(const struct intel_crtc_state *crtc_state) |
dae84799 | 1384 | { |
3dc38eea | 1385 | struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); |
e9ce1a62 | 1386 | struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); |
1524e93e | 1387 | struct intel_encoder *encoder = intel_ddi_get_crtc_encoder(crtc); |
3dc38eea | 1388 | enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; |
1524e93e | 1389 | int type = encoder->type; |
dae84799 PZ |
1390 | uint32_t temp; |
1391 | ||
cca0502b | 1392 | if (type == INTEL_OUTPUT_DP || type == INTEL_OUTPUT_EDP || type == INTEL_OUTPUT_DP_MST) { |
4d1de975 JN |
1393 | WARN_ON(transcoder_is_dsi(cpu_transcoder)); |
1394 | ||
c9809791 | 1395 | temp = TRANS_MSA_SYNC_CLK; |
3dc38eea | 1396 | switch (crtc_state->pipe_bpp) { |
dae84799 | 1397 | case 18: |
c9809791 | 1398 | temp |= TRANS_MSA_6_BPC; |
dae84799 PZ |
1399 | break; |
1400 | case 24: | |
c9809791 | 1401 | temp |= TRANS_MSA_8_BPC; |
dae84799 PZ |
1402 | break; |
1403 | case 30: | |
c9809791 | 1404 | temp |= TRANS_MSA_10_BPC; |
dae84799 PZ |
1405 | break; |
1406 | case 36: | |
c9809791 | 1407 | temp |= TRANS_MSA_12_BPC; |
dae84799 PZ |
1408 | break; |
1409 | default: | |
4e53c2e0 | 1410 | BUG(); |
dae84799 | 1411 | } |
c9809791 | 1412 | I915_WRITE(TRANS_MSA_MISC(cpu_transcoder), temp); |
dae84799 PZ |
1413 | } |
1414 | } | |
1415 | ||
3dc38eea ACO |
1416 | void intel_ddi_set_vc_payload_alloc(const struct intel_crtc_state *crtc_state, |
1417 | bool state) | |
0e32b39c | 1418 | { |
3dc38eea | 1419 | struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); |
e9ce1a62 | 1420 | struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); |
3dc38eea | 1421 | enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; |
0e32b39c DA |
1422 | uint32_t temp; |
1423 | temp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); | |
1424 | if (state == true) | |
1425 | temp |= TRANS_DDI_DP_VC_PAYLOAD_ALLOC; | |
1426 | else | |
1427 | temp &= ~TRANS_DDI_DP_VC_PAYLOAD_ALLOC; | |
1428 | I915_WRITE(TRANS_DDI_FUNC_CTL(cpu_transcoder), temp); | |
1429 | } | |
1430 | ||
3dc38eea | 1431 | void intel_ddi_enable_transcoder_func(const struct intel_crtc_state *crtc_state) |
8d9ddbcb | 1432 | { |
3dc38eea | 1433 | struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); |
1524e93e | 1434 | struct intel_encoder *encoder = intel_ddi_get_crtc_encoder(crtc); |
e9ce1a62 ACO |
1435 | struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); |
1436 | enum pipe pipe = crtc->pipe; | |
3dc38eea | 1437 | enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; |
1524e93e SS |
1438 | enum port port = intel_ddi_get_encoder_port(encoder); |
1439 | int type = encoder->type; | |
8d9ddbcb PZ |
1440 | uint32_t temp; |
1441 | ||
ad80a810 PZ |
1442 | /* Enable TRANS_DDI_FUNC_CTL for the pipe to work in HDMI mode */ |
1443 | temp = TRANS_DDI_FUNC_ENABLE; | |
174edf1f | 1444 | temp |= TRANS_DDI_SELECT_PORT(port); |
dfcef252 | 1445 | |
3dc38eea | 1446 | switch (crtc_state->pipe_bpp) { |
dfcef252 | 1447 | case 18: |
ad80a810 | 1448 | temp |= TRANS_DDI_BPC_6; |
dfcef252 PZ |
1449 | break; |
1450 | case 24: | |
ad80a810 | 1451 | temp |= TRANS_DDI_BPC_8; |
dfcef252 PZ |
1452 | break; |
1453 | case 30: | |
ad80a810 | 1454 | temp |= TRANS_DDI_BPC_10; |
dfcef252 PZ |
1455 | break; |
1456 | case 36: | |
ad80a810 | 1457 | temp |= TRANS_DDI_BPC_12; |
dfcef252 PZ |
1458 | break; |
1459 | default: | |
4e53c2e0 | 1460 | BUG(); |
dfcef252 | 1461 | } |
72662e10 | 1462 | |
3dc38eea | 1463 | if (crtc_state->base.adjusted_mode.flags & DRM_MODE_FLAG_PVSYNC) |
ad80a810 | 1464 | temp |= TRANS_DDI_PVSYNC; |
3dc38eea | 1465 | if (crtc_state->base.adjusted_mode.flags & DRM_MODE_FLAG_PHSYNC) |
ad80a810 | 1466 | temp |= TRANS_DDI_PHSYNC; |
f63eb7c4 | 1467 | |
e6f0bfc4 PZ |
1468 | if (cpu_transcoder == TRANSCODER_EDP) { |
1469 | switch (pipe) { | |
1470 | case PIPE_A: | |
c7670b10 PZ |
1471 | /* On Haswell, can only use the always-on power well for |
1472 | * eDP when not using the panel fitter, and when not | |
1473 | * using motion blur mitigation (which we don't | |
1474 | * support). */ | |
772c2a51 | 1475 | if (IS_HASWELL(dev_priv) && |
3dc38eea ACO |
1476 | (crtc_state->pch_pfit.enabled || |
1477 | crtc_state->pch_pfit.force_thru)) | |
d6dd9eb1 DV |
1478 | temp |= TRANS_DDI_EDP_INPUT_A_ONOFF; |
1479 | else | |
1480 | temp |= TRANS_DDI_EDP_INPUT_A_ON; | |
e6f0bfc4 PZ |
1481 | break; |
1482 | case PIPE_B: | |
1483 | temp |= TRANS_DDI_EDP_INPUT_B_ONOFF; | |
1484 | break; | |
1485 | case PIPE_C: | |
1486 | temp |= TRANS_DDI_EDP_INPUT_C_ONOFF; | |
1487 | break; | |
1488 | default: | |
1489 | BUG(); | |
1490 | break; | |
1491 | } | |
1492 | } | |
1493 | ||
7739c33b | 1494 | if (type == INTEL_OUTPUT_HDMI) { |
3dc38eea | 1495 | if (crtc_state->has_hdmi_sink) |
ad80a810 | 1496 | temp |= TRANS_DDI_MODE_SELECT_HDMI; |
8d9ddbcb | 1497 | else |
ad80a810 | 1498 | temp |= TRANS_DDI_MODE_SELECT_DVI; |
15953637 SS |
1499 | |
1500 | if (crtc_state->hdmi_scrambling) | |
1501 | temp |= TRANS_DDI_HDMI_SCRAMBLING_MASK; | |
1502 | if (crtc_state->hdmi_high_tmds_clock_ratio) | |
1503 | temp |= TRANS_DDI_HIGH_TMDS_CHAR_RATE; | |
7739c33b | 1504 | } else if (type == INTEL_OUTPUT_ANALOG) { |
ad80a810 | 1505 | temp |= TRANS_DDI_MODE_SELECT_FDI; |
3dc38eea | 1506 | temp |= (crtc_state->fdi_lanes - 1) << 1; |
cca0502b | 1507 | } else if (type == INTEL_OUTPUT_DP || |
7739c33b | 1508 | type == INTEL_OUTPUT_EDP) { |
64ee2fd2 | 1509 | temp |= TRANS_DDI_MODE_SELECT_DP_SST; |
3dc38eea | 1510 | temp |= DDI_PORT_WIDTH(crtc_state->lane_count); |
0e32b39c | 1511 | } else if (type == INTEL_OUTPUT_DP_MST) { |
64ee2fd2 | 1512 | temp |= TRANS_DDI_MODE_SELECT_DP_MST; |
3dc38eea | 1513 | temp |= DDI_PORT_WIDTH(crtc_state->lane_count); |
8d9ddbcb | 1514 | } else { |
84f44ce7 | 1515 | WARN(1, "Invalid encoder type %d for pipe %c\n", |
1524e93e | 1516 | encoder->type, pipe_name(pipe)); |
8d9ddbcb PZ |
1517 | } |
1518 | ||
ad80a810 | 1519 | I915_WRITE(TRANS_DDI_FUNC_CTL(cpu_transcoder), temp); |
8d9ddbcb | 1520 | } |
72662e10 | 1521 | |
ad80a810 PZ |
1522 | void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv, |
1523 | enum transcoder cpu_transcoder) | |
8d9ddbcb | 1524 | { |
f0f59a00 | 1525 | i915_reg_t reg = TRANS_DDI_FUNC_CTL(cpu_transcoder); |
8d9ddbcb PZ |
1526 | uint32_t val = I915_READ(reg); |
1527 | ||
0e32b39c | 1528 | val &= ~(TRANS_DDI_FUNC_ENABLE | TRANS_DDI_PORT_MASK | TRANS_DDI_DP_VC_PAYLOAD_ALLOC); |
ad80a810 | 1529 | val |= TRANS_DDI_PORT_NONE; |
8d9ddbcb | 1530 | I915_WRITE(reg, val); |
72662e10 ED |
1531 | } |
1532 | ||
bcbc889b PZ |
1533 | bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector) |
1534 | { | |
1535 | struct drm_device *dev = intel_connector->base.dev; | |
fac5e23e | 1536 | struct drm_i915_private *dev_priv = to_i915(dev); |
1524e93e | 1537 | struct intel_encoder *encoder = intel_connector->encoder; |
bcbc889b | 1538 | int type = intel_connector->base.connector_type; |
1524e93e | 1539 | enum port port = intel_ddi_get_encoder_port(encoder); |
bcbc889b PZ |
1540 | enum pipe pipe = 0; |
1541 | enum transcoder cpu_transcoder; | |
1542 | uint32_t tmp; | |
e27daab4 | 1543 | bool ret; |
bcbc889b | 1544 | |
79f255a0 | 1545 | if (!intel_display_power_get_if_enabled(dev_priv, |
1524e93e | 1546 | encoder->power_domain)) |
882244a3 PZ |
1547 | return false; |
1548 | ||
1524e93e | 1549 | if (!encoder->get_hw_state(encoder, &pipe)) { |
e27daab4 ID |
1550 | ret = false; |
1551 | goto out; | |
1552 | } | |
bcbc889b PZ |
1553 | |
1554 | if (port == PORT_A) | |
1555 | cpu_transcoder = TRANSCODER_EDP; | |
1556 | else | |
1a240d4d | 1557 | cpu_transcoder = (enum transcoder) pipe; |
bcbc889b PZ |
1558 | |
1559 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); | |
1560 | ||
1561 | switch (tmp & TRANS_DDI_MODE_SELECT_MASK) { | |
1562 | case TRANS_DDI_MODE_SELECT_HDMI: | |
1563 | case TRANS_DDI_MODE_SELECT_DVI: | |
e27daab4 ID |
1564 | ret = type == DRM_MODE_CONNECTOR_HDMIA; |
1565 | break; | |
bcbc889b PZ |
1566 | |
1567 | case TRANS_DDI_MODE_SELECT_DP_SST: | |
e27daab4 ID |
1568 | ret = type == DRM_MODE_CONNECTOR_eDP || |
1569 | type == DRM_MODE_CONNECTOR_DisplayPort; | |
1570 | break; | |
1571 | ||
0e32b39c DA |
1572 | case TRANS_DDI_MODE_SELECT_DP_MST: |
1573 | /* if the transcoder is in MST state then | |
1574 | * connector isn't connected */ | |
e27daab4 ID |
1575 | ret = false; |
1576 | break; | |
bcbc889b PZ |
1577 | |
1578 | case TRANS_DDI_MODE_SELECT_FDI: | |
e27daab4 ID |
1579 | ret = type == DRM_MODE_CONNECTOR_VGA; |
1580 | break; | |
bcbc889b PZ |
1581 | |
1582 | default: | |
e27daab4 ID |
1583 | ret = false; |
1584 | break; | |
bcbc889b | 1585 | } |
e27daab4 ID |
1586 | |
1587 | out: | |
1524e93e | 1588 | intel_display_power_put(dev_priv, encoder->power_domain); |
e27daab4 ID |
1589 | |
1590 | return ret; | |
bcbc889b PZ |
1591 | } |
1592 | ||
85234cdc DV |
1593 | bool intel_ddi_get_hw_state(struct intel_encoder *encoder, |
1594 | enum pipe *pipe) | |
1595 | { | |
1596 | struct drm_device *dev = encoder->base.dev; | |
fac5e23e | 1597 | struct drm_i915_private *dev_priv = to_i915(dev); |
fe43d3f5 | 1598 | enum port port = intel_ddi_get_encoder_port(encoder); |
85234cdc DV |
1599 | u32 tmp; |
1600 | int i; | |
e27daab4 | 1601 | bool ret; |
85234cdc | 1602 | |
79f255a0 ACO |
1603 | if (!intel_display_power_get_if_enabled(dev_priv, |
1604 | encoder->power_domain)) | |
6d129bea ID |
1605 | return false; |
1606 | ||
e27daab4 ID |
1607 | ret = false; |
1608 | ||
fe43d3f5 | 1609 | tmp = I915_READ(DDI_BUF_CTL(port)); |
85234cdc DV |
1610 | |
1611 | if (!(tmp & DDI_BUF_CTL_ENABLE)) | |
e27daab4 | 1612 | goto out; |
85234cdc | 1613 | |
ad80a810 PZ |
1614 | if (port == PORT_A) { |
1615 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP)); | |
85234cdc | 1616 | |
ad80a810 PZ |
1617 | switch (tmp & TRANS_DDI_EDP_INPUT_MASK) { |
1618 | case TRANS_DDI_EDP_INPUT_A_ON: | |
1619 | case TRANS_DDI_EDP_INPUT_A_ONOFF: | |
1620 | *pipe = PIPE_A; | |
1621 | break; | |
1622 | case TRANS_DDI_EDP_INPUT_B_ONOFF: | |
1623 | *pipe = PIPE_B; | |
1624 | break; | |
1625 | case TRANS_DDI_EDP_INPUT_C_ONOFF: | |
1626 | *pipe = PIPE_C; | |
1627 | break; | |
1628 | } | |
1629 | ||
e27daab4 | 1630 | ret = true; |
ad80a810 | 1631 | |
e27daab4 ID |
1632 | goto out; |
1633 | } | |
0e32b39c | 1634 | |
e27daab4 ID |
1635 | for (i = TRANSCODER_A; i <= TRANSCODER_C; i++) { |
1636 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(i)); | |
1637 | ||
1638 | if ((tmp & TRANS_DDI_PORT_MASK) == TRANS_DDI_SELECT_PORT(port)) { | |
1639 | if ((tmp & TRANS_DDI_MODE_SELECT_MASK) == | |
1640 | TRANS_DDI_MODE_SELECT_DP_MST) | |
1641 | goto out; | |
1642 | ||
1643 | *pipe = i; | |
1644 | ret = true; | |
1645 | ||
1646 | goto out; | |
85234cdc DV |
1647 | } |
1648 | } | |
1649 | ||
84f44ce7 | 1650 | DRM_DEBUG_KMS("No pipe for ddi port %c found\n", port_name(port)); |
85234cdc | 1651 | |
e27daab4 | 1652 | out: |
cc3f90f0 | 1653 | if (ret && IS_GEN9_LP(dev_priv)) { |
e93da0a0 ID |
1654 | tmp = I915_READ(BXT_PHY_CTL(port)); |
1655 | if ((tmp & (BXT_PHY_LANE_POWERDOWN_ACK | | |
1656 | BXT_PHY_LANE_ENABLED)) != BXT_PHY_LANE_ENABLED) | |
1657 | DRM_ERROR("Port %c enabled but PHY powered down? " | |
1658 | "(PHY_CTL %08x)\n", port_name(port), tmp); | |
1659 | } | |
1660 | ||
79f255a0 | 1661 | intel_display_power_put(dev_priv, encoder->power_domain); |
e27daab4 ID |
1662 | |
1663 | return ret; | |
85234cdc DV |
1664 | } |
1665 | ||
62b69566 ACO |
1666 | static u64 intel_ddi_get_power_domains(struct intel_encoder *encoder) |
1667 | { | |
1668 | struct intel_digital_port *dig_port = enc_to_dig_port(&encoder->base); | |
1669 | enum pipe pipe; | |
1670 | ||
1671 | if (intel_ddi_get_hw_state(encoder, &pipe)) | |
1672 | return BIT_ULL(dig_port->ddi_io_power_domain); | |
1673 | ||
1674 | return 0; | |
1675 | } | |
1676 | ||
3dc38eea | 1677 | void intel_ddi_enable_pipe_clock(const struct intel_crtc_state *crtc_state) |
fc914639 | 1678 | { |
3dc38eea | 1679 | struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); |
e9ce1a62 | 1680 | struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); |
1524e93e SS |
1681 | struct intel_encoder *encoder = intel_ddi_get_crtc_encoder(crtc); |
1682 | enum port port = intel_ddi_get_encoder_port(encoder); | |
3dc38eea | 1683 | enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; |
fc914639 | 1684 | |
bb523fc0 PZ |
1685 | if (cpu_transcoder != TRANSCODER_EDP) |
1686 | I915_WRITE(TRANS_CLK_SEL(cpu_transcoder), | |
1687 | TRANS_CLK_SEL_PORT(port)); | |
fc914639 PZ |
1688 | } |
1689 | ||
3dc38eea | 1690 | void intel_ddi_disable_pipe_clock(const struct intel_crtc_state *crtc_state) |
fc914639 | 1691 | { |
3dc38eea ACO |
1692 | struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev); |
1693 | enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; | |
fc914639 | 1694 | |
bb523fc0 PZ |
1695 | if (cpu_transcoder != TRANSCODER_EDP) |
1696 | I915_WRITE(TRANS_CLK_SEL(cpu_transcoder), | |
1697 | TRANS_CLK_SEL_DISABLED); | |
fc914639 PZ |
1698 | } |
1699 | ||
a7d8dbc0 VS |
1700 | static void _skl_ddi_set_iboost(struct drm_i915_private *dev_priv, |
1701 | enum port port, uint8_t iboost) | |
f8896f5d | 1702 | { |
a7d8dbc0 VS |
1703 | u32 tmp; |
1704 | ||
1705 | tmp = I915_READ(DISPIO_CR_TX_BMU_CR0); | |
1706 | tmp &= ~(BALANCE_LEG_MASK(port) | BALANCE_LEG_DISABLE(port)); | |
1707 | if (iboost) | |
1708 | tmp |= iboost << BALANCE_LEG_SHIFT(port); | |
1709 | else | |
1710 | tmp |= BALANCE_LEG_DISABLE(port); | |
1711 | I915_WRITE(DISPIO_CR_TX_BMU_CR0, tmp); | |
1712 | } | |
1713 | ||
1714 | static void skl_ddi_set_iboost(struct intel_encoder *encoder, u32 level) | |
1715 | { | |
1716 | struct intel_digital_port *intel_dig_port = enc_to_dig_port(&encoder->base); | |
1717 | struct drm_i915_private *dev_priv = to_i915(intel_dig_port->base.base.dev); | |
1718 | enum port port = intel_dig_port->port; | |
1719 | int type = encoder->type; | |
f8896f5d DW |
1720 | const struct ddi_buf_trans *ddi_translations; |
1721 | uint8_t iboost; | |
75067dde | 1722 | uint8_t dp_iboost, hdmi_iboost; |
f8896f5d | 1723 | int n_entries; |
f8896f5d | 1724 | |
75067dde AK |
1725 | /* VBT may override standard boost values */ |
1726 | dp_iboost = dev_priv->vbt.ddi_port_info[port].dp_boost_level; | |
1727 | hdmi_iboost = dev_priv->vbt.ddi_port_info[port].hdmi_boost_level; | |
1728 | ||
cca0502b | 1729 | if (type == INTEL_OUTPUT_DP) { |
75067dde AK |
1730 | if (dp_iboost) { |
1731 | iboost = dp_iboost; | |
1732 | } else { | |
da411a48 | 1733 | if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) |
0fdd4918 RV |
1734 | ddi_translations = kbl_get_buf_trans_dp(dev_priv, |
1735 | &n_entries); | |
1736 | else | |
1737 | ddi_translations = skl_get_buf_trans_dp(dev_priv, | |
1738 | &n_entries); | |
e4d4c05b | 1739 | iboost = ddi_translations[level].i_boost; |
75067dde | 1740 | } |
f8896f5d | 1741 | } else if (type == INTEL_OUTPUT_EDP) { |
75067dde AK |
1742 | if (dp_iboost) { |
1743 | iboost = dp_iboost; | |
1744 | } else { | |
78ab0bae | 1745 | ddi_translations = skl_get_buf_trans_edp(dev_priv, &n_entries); |
10afa0b6 VS |
1746 | |
1747 | if (WARN_ON(port != PORT_A && | |
1748 | port != PORT_E && n_entries > 9)) | |
1749 | n_entries = 9; | |
1750 | ||
e4d4c05b | 1751 | iboost = ddi_translations[level].i_boost; |
75067dde | 1752 | } |
f8896f5d | 1753 | } else if (type == INTEL_OUTPUT_HDMI) { |
75067dde AK |
1754 | if (hdmi_iboost) { |
1755 | iboost = hdmi_iboost; | |
1756 | } else { | |
78ab0bae | 1757 | ddi_translations = skl_get_buf_trans_hdmi(dev_priv, &n_entries); |
e4d4c05b | 1758 | iboost = ddi_translations[level].i_boost; |
75067dde | 1759 | } |
f8896f5d DW |
1760 | } else { |
1761 | return; | |
1762 | } | |
1763 | ||
1764 | /* Make sure that the requested I_boost is valid */ | |
1765 | if (iboost && iboost != 0x1 && iboost != 0x3 && iboost != 0x7) { | |
1766 | DRM_ERROR("Invalid I_boost value %u\n", iboost); | |
1767 | return; | |
1768 | } | |
1769 | ||
a7d8dbc0 | 1770 | _skl_ddi_set_iboost(dev_priv, port, iboost); |
f8896f5d | 1771 | |
a7d8dbc0 VS |
1772 | if (port == PORT_A && intel_dig_port->max_lanes == 4) |
1773 | _skl_ddi_set_iboost(dev_priv, PORT_E, iboost); | |
f8896f5d DW |
1774 | } |
1775 | ||
78ab0bae VS |
1776 | static void bxt_ddi_vswing_sequence(struct drm_i915_private *dev_priv, |
1777 | u32 level, enum port port, int type) | |
96fb9f9b | 1778 | { |
96fb9f9b VK |
1779 | const struct bxt_ddi_buf_trans *ddi_translations; |
1780 | u32 n_entries, i; | |
96fb9f9b | 1781 | |
06411f08 | 1782 | if (type == INTEL_OUTPUT_EDP && dev_priv->vbt.edp.low_vswing) { |
d9d7000d SJ |
1783 | n_entries = ARRAY_SIZE(bxt_ddi_translations_edp); |
1784 | ddi_translations = bxt_ddi_translations_edp; | |
cca0502b | 1785 | } else if (type == INTEL_OUTPUT_DP |
d9d7000d | 1786 | || type == INTEL_OUTPUT_EDP) { |
96fb9f9b VK |
1787 | n_entries = ARRAY_SIZE(bxt_ddi_translations_dp); |
1788 | ddi_translations = bxt_ddi_translations_dp; | |
1789 | } else if (type == INTEL_OUTPUT_HDMI) { | |
1790 | n_entries = ARRAY_SIZE(bxt_ddi_translations_hdmi); | |
1791 | ddi_translations = bxt_ddi_translations_hdmi; | |
1792 | } else { | |
1793 | DRM_DEBUG_KMS("Vswing programming not done for encoder %d\n", | |
1794 | type); | |
1795 | return; | |
1796 | } | |
1797 | ||
1798 | /* Check if default value has to be used */ | |
1799 | if (level >= n_entries || | |
1800 | (type == INTEL_OUTPUT_HDMI && level == HDMI_LEVEL_SHIFT_UNKNOWN)) { | |
1801 | for (i = 0; i < n_entries; i++) { | |
1802 | if (ddi_translations[i].default_index) { | |
1803 | level = i; | |
1804 | break; | |
1805 | } | |
1806 | } | |
1807 | } | |
1808 | ||
b6e08203 ACO |
1809 | bxt_ddi_phy_set_signal_level(dev_priv, port, |
1810 | ddi_translations[level].margin, | |
1811 | ddi_translations[level].scale, | |
1812 | ddi_translations[level].enable, | |
1813 | ddi_translations[level].deemphasis); | |
96fb9f9b VK |
1814 | } |
1815 | ||
ffe5111e VS |
1816 | u8 intel_ddi_dp_voltage_max(struct intel_encoder *encoder) |
1817 | { | |
1818 | struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); | |
1819 | int n_entries; | |
1820 | ||
1821 | if (encoder->type == INTEL_OUTPUT_EDP) | |
1822 | intel_ddi_get_buf_trans_edp(dev_priv, &n_entries); | |
1823 | else | |
1824 | intel_ddi_get_buf_trans_dp(dev_priv, &n_entries); | |
1825 | ||
1826 | if (WARN_ON(n_entries < 1)) | |
1827 | n_entries = 1; | |
1828 | if (WARN_ON(n_entries > ARRAY_SIZE(index_to_dp_signal_levels))) | |
1829 | n_entries = ARRAY_SIZE(index_to_dp_signal_levels); | |
1830 | ||
1831 | return index_to_dp_signal_levels[n_entries - 1] & | |
1832 | DP_TRAIN_VOLTAGE_SWING_MASK; | |
1833 | } | |
1834 | ||
cf54ca8b RV |
1835 | static const struct cnl_ddi_buf_trans * |
1836 | cnl_get_buf_trans_hdmi(struct drm_i915_private *dev_priv, | |
1837 | u32 voltage, int *n_entries) | |
1838 | { | |
1839 | if (voltage == VOLTAGE_INFO_0_85V) { | |
1840 | *n_entries = ARRAY_SIZE(cnl_ddi_translations_hdmi_0_85V); | |
1841 | return cnl_ddi_translations_hdmi_0_85V; | |
1842 | } else if (voltage == VOLTAGE_INFO_0_95V) { | |
1843 | *n_entries = ARRAY_SIZE(cnl_ddi_translations_hdmi_0_95V); | |
1844 | return cnl_ddi_translations_hdmi_0_95V; | |
1845 | } else if (voltage == VOLTAGE_INFO_1_05V) { | |
1846 | *n_entries = ARRAY_SIZE(cnl_ddi_translations_hdmi_1_05V); | |
1847 | return cnl_ddi_translations_hdmi_1_05V; | |
1848 | } | |
1849 | return NULL; | |
1850 | } | |
1851 | ||
1852 | static const struct cnl_ddi_buf_trans * | |
1853 | cnl_get_buf_trans_dp(struct drm_i915_private *dev_priv, | |
1854 | u32 voltage, int *n_entries) | |
1855 | { | |
1856 | if (voltage == VOLTAGE_INFO_0_85V) { | |
1857 | *n_entries = ARRAY_SIZE(cnl_ddi_translations_dp_0_85V); | |
1858 | return cnl_ddi_translations_dp_0_85V; | |
1859 | } else if (voltage == VOLTAGE_INFO_0_95V) { | |
1860 | *n_entries = ARRAY_SIZE(cnl_ddi_translations_dp_0_95V); | |
1861 | return cnl_ddi_translations_dp_0_95V; | |
1862 | } else if (voltage == VOLTAGE_INFO_1_05V) { | |
1863 | *n_entries = ARRAY_SIZE(cnl_ddi_translations_dp_1_05V); | |
1864 | return cnl_ddi_translations_dp_1_05V; | |
1865 | } | |
1866 | return NULL; | |
1867 | } | |
1868 | ||
1869 | static const struct cnl_ddi_buf_trans * | |
1870 | cnl_get_buf_trans_edp(struct drm_i915_private *dev_priv, | |
1871 | u32 voltage, int *n_entries) | |
1872 | { | |
1873 | if (dev_priv->vbt.edp.low_vswing) { | |
1874 | if (voltage == VOLTAGE_INFO_0_85V) { | |
1875 | *n_entries = ARRAY_SIZE(cnl_ddi_translations_edp_0_85V); | |
1876 | return cnl_ddi_translations_dp_0_85V; | |
1877 | } else if (voltage == VOLTAGE_INFO_0_95V) { | |
1878 | *n_entries = ARRAY_SIZE(cnl_ddi_translations_edp_0_95V); | |
1879 | return cnl_ddi_translations_edp_0_95V; | |
1880 | } else if (voltage == VOLTAGE_INFO_1_05V) { | |
1881 | *n_entries = ARRAY_SIZE(cnl_ddi_translations_edp_1_05V); | |
1882 | return cnl_ddi_translations_edp_1_05V; | |
1883 | } | |
1884 | return NULL; | |
1885 | } else { | |
1886 | return cnl_get_buf_trans_dp(dev_priv, voltage, n_entries); | |
1887 | } | |
1888 | } | |
1889 | ||
1890 | static void cnl_ddi_vswing_program(struct drm_i915_private *dev_priv, | |
1891 | u32 level, enum port port, int type) | |
1892 | { | |
1893 | const struct cnl_ddi_buf_trans *ddi_translations = NULL; | |
1894 | u32 n_entries, val, voltage; | |
1895 | int ln; | |
1896 | ||
1897 | /* | |
1898 | * Values for each port type are listed in | |
1899 | * voltage swing programming tables. | |
1900 | * Vccio voltage found in PORT_COMP_DW3. | |
1901 | */ | |
1902 | voltage = I915_READ(CNL_PORT_COMP_DW3) & VOLTAGE_INFO_MASK; | |
1903 | ||
1904 | if (type == INTEL_OUTPUT_HDMI) { | |
1905 | ddi_translations = cnl_get_buf_trans_hdmi(dev_priv, | |
1906 | voltage, &n_entries); | |
1907 | } else if (type == INTEL_OUTPUT_DP) { | |
1908 | ddi_translations = cnl_get_buf_trans_dp(dev_priv, | |
1909 | voltage, &n_entries); | |
1910 | } else if (type == INTEL_OUTPUT_EDP) { | |
1911 | ddi_translations = cnl_get_buf_trans_edp(dev_priv, | |
1912 | voltage, &n_entries); | |
1913 | } | |
1914 | ||
1915 | if (ddi_translations == NULL) { | |
1916 | MISSING_CASE(voltage); | |
1917 | return; | |
1918 | } | |
1919 | ||
1920 | if (level >= n_entries) { | |
1921 | DRM_DEBUG_KMS("DDI translation not found for level %d. Using %d instead.", level, n_entries - 1); | |
1922 | level = n_entries - 1; | |
1923 | } | |
1924 | ||
1925 | /* Set PORT_TX_DW5 Scaling Mode Sel to 010b. */ | |
1926 | val = I915_READ(CNL_PORT_TX_DW5_LN0(port)); | |
1f588aeb | 1927 | val &= ~SCALING_MODE_SEL_MASK; |
cf54ca8b RV |
1928 | val |= SCALING_MODE_SEL(2); |
1929 | I915_WRITE(CNL_PORT_TX_DW5_GRP(port), val); | |
1930 | ||
1931 | /* Program PORT_TX_DW2 */ | |
1932 | val = I915_READ(CNL_PORT_TX_DW2_LN0(port)); | |
1f588aeb RV |
1933 | val &= ~(SWING_SEL_LOWER_MASK | SWING_SEL_UPPER_MASK | |
1934 | RCOMP_SCALAR_MASK); | |
cf54ca8b RV |
1935 | val |= SWING_SEL_UPPER(ddi_translations[level].dw2_swing_sel); |
1936 | val |= SWING_SEL_LOWER(ddi_translations[level].dw2_swing_sel); | |
1937 | /* Rcomp scalar is fixed as 0x98 for every table entry */ | |
1938 | val |= RCOMP_SCALAR(0x98); | |
1939 | I915_WRITE(CNL_PORT_TX_DW2_GRP(port), val); | |
1940 | ||
1941 | /* Program PORT_TX_DW4 */ | |
1942 | /* We cannot write to GRP. It would overrite individual loadgen */ | |
1943 | for (ln = 0; ln < 4; ln++) { | |
1944 | val = I915_READ(CNL_PORT_TX_DW4_LN(port, ln)); | |
1f588aeb RV |
1945 | val &= ~(POST_CURSOR_1_MASK | POST_CURSOR_2_MASK | |
1946 | CURSOR_COEFF_MASK); | |
cf54ca8b RV |
1947 | val |= POST_CURSOR_1(ddi_translations[level].dw4_post_cursor_1); |
1948 | val |= POST_CURSOR_2(ddi_translations[level].dw4_post_cursor_2); | |
1949 | val |= CURSOR_COEFF(ddi_translations[level].dw4_cursor_coeff); | |
1950 | I915_WRITE(CNL_PORT_TX_DW4_LN(port, ln), val); | |
1951 | } | |
1952 | ||
1953 | /* Program PORT_TX_DW5 */ | |
1954 | /* All DW5 values are fixed for every table entry */ | |
1955 | val = I915_READ(CNL_PORT_TX_DW5_LN0(port)); | |
1f588aeb | 1956 | val &= ~RTERM_SELECT_MASK; |
cf54ca8b RV |
1957 | val |= RTERM_SELECT(6); |
1958 | val |= TAP3_DISABLE; | |
1959 | I915_WRITE(CNL_PORT_TX_DW5_GRP(port), val); | |
1960 | ||
1961 | /* Program PORT_TX_DW7 */ | |
1962 | val = I915_READ(CNL_PORT_TX_DW7_LN0(port)); | |
1f588aeb | 1963 | val &= ~N_SCALAR_MASK; |
cf54ca8b RV |
1964 | val |= N_SCALAR(ddi_translations[level].dw7_n_scalar); |
1965 | I915_WRITE(CNL_PORT_TX_DW7_GRP(port), val); | |
1966 | } | |
1967 | ||
0091abc3 | 1968 | static void cnl_ddi_vswing_sequence(struct intel_encoder *encoder, u32 level) |
cf54ca8b | 1969 | { |
0091abc3 CT |
1970 | struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); |
1971 | struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base); | |
1972 | enum port port = intel_ddi_get_encoder_port(encoder); | |
1973 | int type = encoder->type; | |
1974 | int width = 0; | |
1975 | int rate = 0; | |
cf54ca8b | 1976 | u32 val; |
0091abc3 CT |
1977 | int ln = 0; |
1978 | ||
1979 | if ((intel_dp) && (type == INTEL_OUTPUT_EDP || type == INTEL_OUTPUT_DP)) { | |
1980 | width = intel_dp->lane_count; | |
1981 | rate = intel_dp->link_rate; | |
1982 | } else { | |
1983 | width = 4; | |
1984 | /* Rate is always < than 6GHz for HDMI */ | |
1985 | } | |
cf54ca8b RV |
1986 | |
1987 | /* | |
1988 | * 1. If port type is eDP or DP, | |
1989 | * set PORT_PCS_DW1 cmnkeeper_enable to 1b, | |
1990 | * else clear to 0b. | |
1991 | */ | |
1992 | val = I915_READ(CNL_PORT_PCS_DW1_LN0(port)); | |
1993 | if (type == INTEL_OUTPUT_EDP || type == INTEL_OUTPUT_DP) | |
1994 | val |= COMMON_KEEPER_EN; | |
1995 | else | |
1996 | val &= ~COMMON_KEEPER_EN; | |
1997 | I915_WRITE(CNL_PORT_PCS_DW1_GRP(port), val); | |
1998 | ||
1999 | /* 2. Program loadgen select */ | |
2000 | /* | |
0091abc3 CT |
2001 | * Program PORT_TX_DW4_LN depending on Bit rate and used lanes |
2002 | * <= 6 GHz and 4 lanes (LN0=0, LN1=1, LN2=1, LN3=1) | |
2003 | * <= 6 GHz and 1,2 lanes (LN0=0, LN1=1, LN2=1, LN3=0) | |
2004 | * > 6 GHz (LN0=0, LN1=0, LN2=0, LN3=0) | |
cf54ca8b | 2005 | */ |
0091abc3 CT |
2006 | for (ln = 0; ln <= 3; ln++) { |
2007 | val = I915_READ(CNL_PORT_TX_DW4_LN(port, ln)); | |
2008 | val &= ~LOADGEN_SELECT; | |
2009 | ||
2010 | if (((rate < 600000) && (width == 4) && (ln >= 1)) || | |
2011 | ((rate < 600000) && (width < 4) && ((ln == 1) || (ln == 2)))) { | |
2012 | val |= LOADGEN_SELECT; | |
2013 | } | |
2014 | I915_WRITE(CNL_PORT_TX_DW4_LN(port, ln), val); | |
2015 | } | |
cf54ca8b RV |
2016 | |
2017 | /* 3. Set PORT_CL_DW5 SUS Clock Config to 11b */ | |
2018 | val = I915_READ(CNL_PORT_CL1CM_DW5); | |
2019 | val |= SUS_CLOCK_CONFIG; | |
2020 | I915_WRITE(CNL_PORT_CL1CM_DW5, val); | |
2021 | ||
2022 | /* 4. Clear training enable to change swing values */ | |
2023 | val = I915_READ(CNL_PORT_TX_DW5_LN0(port)); | |
2024 | val &= ~TX_TRAINING_EN; | |
2025 | I915_WRITE(CNL_PORT_TX_DW5_GRP(port), val); | |
2026 | ||
2027 | /* 5. Program swing and de-emphasis */ | |
2028 | cnl_ddi_vswing_program(dev_priv, level, port, type); | |
2029 | ||
2030 | /* 6. Set training enable to trigger update */ | |
2031 | val = I915_READ(CNL_PORT_TX_DW5_LN0(port)); | |
2032 | val |= TX_TRAINING_EN; | |
2033 | I915_WRITE(CNL_PORT_TX_DW5_GRP(port), val); | |
2034 | } | |
2035 | ||
f8896f5d DW |
2036 | static uint32_t translate_signal_level(int signal_levels) |
2037 | { | |
97eeb872 | 2038 | int i; |
f8896f5d | 2039 | |
97eeb872 VS |
2040 | for (i = 0; i < ARRAY_SIZE(index_to_dp_signal_levels); i++) { |
2041 | if (index_to_dp_signal_levels[i] == signal_levels) | |
2042 | return i; | |
f8896f5d DW |
2043 | } |
2044 | ||
97eeb872 VS |
2045 | WARN(1, "Unsupported voltage swing/pre-emphasis level: 0x%x\n", |
2046 | signal_levels); | |
2047 | ||
2048 | return 0; | |
f8896f5d DW |
2049 | } |
2050 | ||
2051 | uint32_t ddi_signal_levels(struct intel_dp *intel_dp) | |
2052 | { | |
2053 | struct intel_digital_port *dport = dp_to_dig_port(intel_dp); | |
78ab0bae | 2054 | struct drm_i915_private *dev_priv = to_i915(dport->base.base.dev); |
f8896f5d DW |
2055 | struct intel_encoder *encoder = &dport->base; |
2056 | uint8_t train_set = intel_dp->train_set[0]; | |
2057 | int signal_levels = train_set & (DP_TRAIN_VOLTAGE_SWING_MASK | | |
2058 | DP_TRAIN_PRE_EMPHASIS_MASK); | |
2059 | enum port port = dport->port; | |
2060 | uint32_t level; | |
2061 | ||
2062 | level = translate_signal_level(signal_levels); | |
2063 | ||
b976dc53 | 2064 | if (IS_GEN9_BC(dev_priv)) |
a7d8dbc0 | 2065 | skl_ddi_set_iboost(encoder, level); |
cc3f90f0 | 2066 | else if (IS_GEN9_LP(dev_priv)) |
78ab0bae | 2067 | bxt_ddi_vswing_sequence(dev_priv, level, port, encoder->type); |
cf54ca8b | 2068 | else if (IS_CANNONLAKE(dev_priv)) { |
0091abc3 | 2069 | cnl_ddi_vswing_sequence(encoder, level); |
cf54ca8b RV |
2070 | /* DDI_BUF_CTL bits 27:24 are reserved on CNL */ |
2071 | return 0; | |
2072 | } | |
f8896f5d DW |
2073 | return DDI_BUF_TRANS_SELECT(level); |
2074 | } | |
2075 | ||
d7c530b2 PZ |
2076 | static void intel_ddi_clk_select(struct intel_encoder *encoder, |
2077 | struct intel_shared_dpll *pll) | |
6441ab5f | 2078 | { |
e404ba8d VS |
2079 | struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); |
2080 | enum port port = intel_ddi_get_encoder_port(encoder); | |
555e38d2 | 2081 | uint32_t val; |
6441ab5f | 2082 | |
c856052a ACO |
2083 | if (WARN_ON(!pll)) |
2084 | return; | |
2085 | ||
555e38d2 RV |
2086 | if (IS_CANNONLAKE(dev_priv)) { |
2087 | /* Configure DPCLKA_CFGCR0 to map the DPLL to the DDI. */ | |
2088 | val = I915_READ(DPCLKA_CFGCR0); | |
2089 | val |= DPCLKA_CFGCR0_DDI_CLK_SEL(pll->id, port); | |
2090 | I915_WRITE(DPCLKA_CFGCR0, val); | |
efa80add | 2091 | |
555e38d2 RV |
2092 | /* |
2093 | * Configure DPCLKA_CFGCR0 to turn on the clock for the DDI. | |
2094 | * This step and the step before must be done with separate | |
2095 | * register writes. | |
2096 | */ | |
2097 | val = I915_READ(DPCLKA_CFGCR0); | |
2098 | val &= ~(DPCLKA_CFGCR0_DDI_CLK_OFF(port) | | |
2099 | DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(port)); | |
2100 | I915_WRITE(DPCLKA_CFGCR0, val); | |
2101 | } else if (IS_GEN9_BC(dev_priv)) { | |
5416d871 | 2102 | /* DDI -> PLL mapping */ |
efa80add S |
2103 | val = I915_READ(DPLL_CTRL2); |
2104 | ||
2105 | val &= ~(DPLL_CTRL2_DDI_CLK_OFF(port) | | |
2106 | DPLL_CTRL2_DDI_CLK_SEL_MASK(port)); | |
c856052a | 2107 | val |= (DPLL_CTRL2_DDI_CLK_SEL(pll->id, port) | |
efa80add S |
2108 | DPLL_CTRL2_DDI_SEL_OVERRIDE(port)); |
2109 | ||
2110 | I915_WRITE(DPLL_CTRL2, val); | |
5416d871 | 2111 | |
e404ba8d | 2112 | } else if (INTEL_INFO(dev_priv)->gen < 9) { |
c856052a | 2113 | I915_WRITE(PORT_CLK_SEL(port), hsw_pll_to_ddi_pll_sel(pll)); |
efa80add | 2114 | } |
e404ba8d VS |
2115 | } |
2116 | ||
ba88d153 MN |
2117 | static void intel_ddi_pre_enable_dp(struct intel_encoder *encoder, |
2118 | int link_rate, uint32_t lane_count, | |
2119 | struct intel_shared_dpll *pll, | |
2120 | bool link_mst) | |
e404ba8d | 2121 | { |
ba88d153 MN |
2122 | struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base); |
2123 | struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); | |
2124 | enum port port = intel_ddi_get_encoder_port(encoder); | |
62b69566 | 2125 | struct intel_digital_port *dig_port = enc_to_dig_port(&encoder->base); |
b2ccb822 | 2126 | |
e081c846 ACO |
2127 | WARN_ON(link_mst && (port == PORT_A || port == PORT_E)); |
2128 | ||
ba88d153 MN |
2129 | intel_dp_set_link_params(intel_dp, link_rate, lane_count, |
2130 | link_mst); | |
2131 | if (encoder->type == INTEL_OUTPUT_EDP) | |
e404ba8d | 2132 | intel_edp_panel_on(intel_dp); |
32bdc400 | 2133 | |
ba88d153 | 2134 | intel_ddi_clk_select(encoder, pll); |
62b69566 ACO |
2135 | |
2136 | intel_display_power_get(dev_priv, dig_port->ddi_io_power_domain); | |
2137 | ||
ba88d153 MN |
2138 | intel_prepare_dp_ddi_buffers(encoder); |
2139 | intel_ddi_init_dp_buf_reg(encoder); | |
2140 | intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON); | |
2141 | intel_dp_start_link_train(intel_dp); | |
2142 | if (port != PORT_A || INTEL_GEN(dev_priv) >= 9) | |
2143 | intel_dp_stop_link_train(intel_dp); | |
2144 | } | |
901c2daf | 2145 | |
ba88d153 MN |
2146 | static void intel_ddi_pre_enable_hdmi(struct intel_encoder *encoder, |
2147 | bool has_hdmi_sink, | |
ac240288 ML |
2148 | const struct intel_crtc_state *crtc_state, |
2149 | const struct drm_connector_state *conn_state, | |
ba88d153 MN |
2150 | struct intel_shared_dpll *pll) |
2151 | { | |
2152 | struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); | |
2153 | struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); | |
2154 | struct drm_encoder *drm_encoder = &encoder->base; | |
2155 | enum port port = intel_ddi_get_encoder_port(encoder); | |
2156 | int level = intel_ddi_hdmi_level(dev_priv, port); | |
62b69566 | 2157 | struct intel_digital_port *dig_port = enc_to_dig_port(&encoder->base); |
c19b0669 | 2158 | |
ba88d153 MN |
2159 | intel_dp_dual_mode_set_tmds_output(intel_hdmi, true); |
2160 | intel_ddi_clk_select(encoder, pll); | |
62b69566 ACO |
2161 | |
2162 | intel_display_power_get(dev_priv, dig_port->ddi_io_power_domain); | |
2163 | ||
ba88d153 | 2164 | intel_prepare_hdmi_ddi_buffers(encoder); |
b976dc53 | 2165 | if (IS_GEN9_BC(dev_priv)) |
ba88d153 | 2166 | skl_ddi_set_iboost(encoder, level); |
cc3f90f0 | 2167 | else if (IS_GEN9_LP(dev_priv)) |
ba88d153 MN |
2168 | bxt_ddi_vswing_sequence(dev_priv, level, port, |
2169 | INTEL_OUTPUT_HDMI); | |
cf54ca8b | 2170 | else if (IS_CANNONLAKE(dev_priv)) |
0091abc3 | 2171 | cnl_ddi_vswing_sequence(encoder, level); |
8d8bb85e | 2172 | |
ba88d153 MN |
2173 | intel_hdmi->set_infoframes(drm_encoder, |
2174 | has_hdmi_sink, | |
ac240288 | 2175 | crtc_state, conn_state); |
ba88d153 | 2176 | } |
32bdc400 | 2177 | |
1524e93e | 2178 | static void intel_ddi_pre_enable(struct intel_encoder *encoder, |
ba88d153 MN |
2179 | struct intel_crtc_state *pipe_config, |
2180 | struct drm_connector_state *conn_state) | |
2181 | { | |
1524e93e | 2182 | int type = encoder->type; |
30cf6db8 | 2183 | |
ba88d153 | 2184 | if (type == INTEL_OUTPUT_DP || type == INTEL_OUTPUT_EDP) { |
1524e93e | 2185 | intel_ddi_pre_enable_dp(encoder, |
3dc38eea ACO |
2186 | pipe_config->port_clock, |
2187 | pipe_config->lane_count, | |
2188 | pipe_config->shared_dpll, | |
2189 | intel_crtc_has_type(pipe_config, | |
ba88d153 MN |
2190 | INTEL_OUTPUT_DP_MST)); |
2191 | } | |
2192 | if (type == INTEL_OUTPUT_HDMI) { | |
1524e93e | 2193 | intel_ddi_pre_enable_hdmi(encoder, |
ac240288 ML |
2194 | pipe_config->has_hdmi_sink, |
2195 | pipe_config, conn_state, | |
3dc38eea | 2196 | pipe_config->shared_dpll); |
c19b0669 | 2197 | } |
6441ab5f PZ |
2198 | } |
2199 | ||
fd6bbda9 ML |
2200 | static void intel_ddi_post_disable(struct intel_encoder *intel_encoder, |
2201 | struct intel_crtc_state *old_crtc_state, | |
2202 | struct drm_connector_state *old_conn_state) | |
6441ab5f PZ |
2203 | { |
2204 | struct drm_encoder *encoder = &intel_encoder->base; | |
66478475 | 2205 | struct drm_i915_private *dev_priv = to_i915(encoder->dev); |
6441ab5f | 2206 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
62b69566 | 2207 | struct intel_digital_port *dig_port = enc_to_dig_port(encoder); |
7618138d | 2208 | struct intel_dp *intel_dp = NULL; |
82a4d9c0 | 2209 | int type = intel_encoder->type; |
2886e93f | 2210 | uint32_t val; |
a836bdf9 | 2211 | bool wait = false; |
2886e93f | 2212 | |
fd6bbda9 ML |
2213 | /* old_crtc_state and old_conn_state are NULL when called from DP_MST */ |
2214 | ||
7618138d ID |
2215 | if (type == INTEL_OUTPUT_DP || type == INTEL_OUTPUT_EDP) { |
2216 | intel_dp = enc_to_intel_dp(encoder); | |
2217 | intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF); | |
2218 | } | |
2219 | ||
2886e93f PZ |
2220 | val = I915_READ(DDI_BUF_CTL(port)); |
2221 | if (val & DDI_BUF_CTL_ENABLE) { | |
2222 | val &= ~DDI_BUF_CTL_ENABLE; | |
2223 | I915_WRITE(DDI_BUF_CTL(port), val); | |
a836bdf9 | 2224 | wait = true; |
2886e93f | 2225 | } |
6441ab5f | 2226 | |
a836bdf9 PZ |
2227 | val = I915_READ(DP_TP_CTL(port)); |
2228 | val &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK); | |
2229 | val |= DP_TP_CTL_LINK_TRAIN_PAT1; | |
2230 | I915_WRITE(DP_TP_CTL(port), val); | |
2231 | ||
2232 | if (wait) | |
2233 | intel_wait_ddi_buf_idle(dev_priv, port); | |
2234 | ||
7618138d | 2235 | if (intel_dp) { |
24f3e092 | 2236 | intel_edp_panel_vdd_on(intel_dp); |
4be73780 | 2237 | intel_edp_panel_off(intel_dp); |
82a4d9c0 PZ |
2238 | } |
2239 | ||
62b69566 ACO |
2240 | if (dig_port) |
2241 | intel_display_power_put(dev_priv, dig_port->ddi_io_power_domain); | |
2242 | ||
555e38d2 RV |
2243 | if (IS_CANNONLAKE(dev_priv)) |
2244 | I915_WRITE(DPCLKA_CFGCR0, I915_READ(DPCLKA_CFGCR0) | | |
2245 | DPCLKA_CFGCR0_DDI_CLK_OFF(port)); | |
2246 | else if (IS_GEN9_BC(dev_priv)) | |
efa80add S |
2247 | I915_WRITE(DPLL_CTRL2, (I915_READ(DPLL_CTRL2) | |
2248 | DPLL_CTRL2_DDI_CLK_OFF(port))); | |
66478475 | 2249 | else if (INTEL_GEN(dev_priv) < 9) |
efa80add | 2250 | I915_WRITE(PORT_CLK_SEL(port), PORT_CLK_SEL_NONE); |
b2ccb822 VS |
2251 | |
2252 | if (type == INTEL_OUTPUT_HDMI) { | |
2253 | struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); | |
2254 | ||
2255 | intel_dp_dual_mode_set_tmds_output(intel_hdmi, false); | |
2256 | } | |
6441ab5f PZ |
2257 | } |
2258 | ||
1524e93e | 2259 | void intel_ddi_fdi_post_disable(struct intel_encoder *encoder, |
b7076546 ML |
2260 | struct intel_crtc_state *old_crtc_state, |
2261 | struct drm_connector_state *old_conn_state) | |
2262 | { | |
1524e93e | 2263 | struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); |
b7076546 ML |
2264 | uint32_t val; |
2265 | ||
2266 | /* | |
2267 | * Bspec lists this as both step 13 (before DDI_BUF_CTL disable) | |
2268 | * and step 18 (after clearing PORT_CLK_SEL). Based on a BUN, | |
2269 | * step 13 is the correct place for it. Step 18 is where it was | |
2270 | * originally before the BUN. | |
2271 | */ | |
2272 | val = I915_READ(FDI_RX_CTL(PIPE_A)); | |
2273 | val &= ~FDI_RX_ENABLE; | |
2274 | I915_WRITE(FDI_RX_CTL(PIPE_A), val); | |
2275 | ||
1524e93e | 2276 | intel_ddi_post_disable(encoder, old_crtc_state, old_conn_state); |
b7076546 ML |
2277 | |
2278 | val = I915_READ(FDI_RX_MISC(PIPE_A)); | |
2279 | val &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); | |
2280 | val |= FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2); | |
2281 | I915_WRITE(FDI_RX_MISC(PIPE_A), val); | |
2282 | ||
2283 | val = I915_READ(FDI_RX_CTL(PIPE_A)); | |
2284 | val &= ~FDI_PCDCLK; | |
2285 | I915_WRITE(FDI_RX_CTL(PIPE_A), val); | |
2286 | ||
2287 | val = I915_READ(FDI_RX_CTL(PIPE_A)); | |
2288 | val &= ~FDI_RX_PLL_ENABLE; | |
2289 | I915_WRITE(FDI_RX_CTL(PIPE_A), val); | |
2290 | } | |
2291 | ||
fd6bbda9 ML |
2292 | static void intel_enable_ddi(struct intel_encoder *intel_encoder, |
2293 | struct intel_crtc_state *pipe_config, | |
2294 | struct drm_connector_state *conn_state) | |
72662e10 | 2295 | { |
6547fef8 | 2296 | struct drm_encoder *encoder = &intel_encoder->base; |
66478475 | 2297 | struct drm_i915_private *dev_priv = to_i915(encoder->dev); |
6547fef8 PZ |
2298 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
2299 | int type = intel_encoder->type; | |
72662e10 | 2300 | |
6547fef8 | 2301 | if (type == INTEL_OUTPUT_HDMI) { |
876a8cdf DL |
2302 | struct intel_digital_port *intel_dig_port = |
2303 | enc_to_dig_port(encoder); | |
15953637 SS |
2304 | bool clock_ratio = pipe_config->hdmi_high_tmds_clock_ratio; |
2305 | bool scrambling = pipe_config->hdmi_scrambling; | |
2306 | ||
2307 | intel_hdmi_handle_sink_scrambling(intel_encoder, | |
2308 | conn_state->connector, | |
2309 | clock_ratio, scrambling); | |
876a8cdf | 2310 | |
6547fef8 PZ |
2311 | /* In HDMI/DVI mode, the port width, and swing/emphasis values |
2312 | * are ignored so nothing special needs to be done besides | |
2313 | * enabling the port. | |
2314 | */ | |
876a8cdf | 2315 | I915_WRITE(DDI_BUF_CTL(port), |
bcf53de4 SM |
2316 | intel_dig_port->saved_port_bits | |
2317 | DDI_BUF_CTL_ENABLE); | |
d6c50ff8 PZ |
2318 | } else if (type == INTEL_OUTPUT_EDP) { |
2319 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); | |
2320 | ||
66478475 | 2321 | if (port == PORT_A && INTEL_GEN(dev_priv) < 9) |
3ab9c637 ID |
2322 | intel_dp_stop_link_train(intel_dp); |
2323 | ||
b037d58f | 2324 | intel_edp_backlight_on(pipe_config, conn_state); |
0bc12bcb | 2325 | intel_psr_enable(intel_dp); |
85cb48a1 | 2326 | intel_edp_drrs_enable(intel_dp, pipe_config); |
6547fef8 | 2327 | } |
7b9f35a6 | 2328 | |
37255d8d | 2329 | if (pipe_config->has_audio) |
bbf35e9d | 2330 | intel_audio_codec_enable(intel_encoder, pipe_config, conn_state); |
5ab432ef DV |
2331 | } |
2332 | ||
fd6bbda9 ML |
2333 | static void intel_disable_ddi(struct intel_encoder *intel_encoder, |
2334 | struct intel_crtc_state *old_crtc_state, | |
2335 | struct drm_connector_state *old_conn_state) | |
5ab432ef | 2336 | { |
d6c50ff8 PZ |
2337 | struct drm_encoder *encoder = &intel_encoder->base; |
2338 | int type = intel_encoder->type; | |
2339 | ||
37255d8d | 2340 | if (old_crtc_state->has_audio) |
69bfe1a9 | 2341 | intel_audio_codec_disable(intel_encoder); |
2831d842 | 2342 | |
15953637 SS |
2343 | if (type == INTEL_OUTPUT_HDMI) { |
2344 | intel_hdmi_handle_sink_scrambling(intel_encoder, | |
2345 | old_conn_state->connector, | |
2346 | false, false); | |
2347 | } | |
2348 | ||
d6c50ff8 PZ |
2349 | if (type == INTEL_OUTPUT_EDP) { |
2350 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); | |
2351 | ||
85cb48a1 | 2352 | intel_edp_drrs_disable(intel_dp, old_crtc_state); |
0bc12bcb | 2353 | intel_psr_disable(intel_dp); |
b037d58f | 2354 | intel_edp_backlight_off(old_conn_state); |
d6c50ff8 | 2355 | } |
72662e10 | 2356 | } |
79f689aa | 2357 | |
fd6bbda9 ML |
2358 | static void bxt_ddi_pre_pll_enable(struct intel_encoder *encoder, |
2359 | struct intel_crtc_state *pipe_config, | |
2360 | struct drm_connector_state *conn_state) | |
95a7a2ae | 2361 | { |
3dc38eea | 2362 | uint8_t mask = pipe_config->lane_lat_optim_mask; |
95a7a2ae | 2363 | |
47a6bc61 | 2364 | bxt_ddi_phy_set_lane_optim_mask(encoder, mask); |
95a7a2ae ID |
2365 | } |
2366 | ||
ad64217b | 2367 | void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp) |
c19b0669 | 2368 | { |
ad64217b ACO |
2369 | struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); |
2370 | struct drm_i915_private *dev_priv = | |
2371 | to_i915(intel_dig_port->base.base.dev); | |
174edf1f | 2372 | enum port port = intel_dig_port->port; |
c19b0669 | 2373 | uint32_t val; |
f3e227df | 2374 | bool wait = false; |
c19b0669 PZ |
2375 | |
2376 | if (I915_READ(DP_TP_CTL(port)) & DP_TP_CTL_ENABLE) { | |
2377 | val = I915_READ(DDI_BUF_CTL(port)); | |
2378 | if (val & DDI_BUF_CTL_ENABLE) { | |
2379 | val &= ~DDI_BUF_CTL_ENABLE; | |
2380 | I915_WRITE(DDI_BUF_CTL(port), val); | |
2381 | wait = true; | |
2382 | } | |
2383 | ||
2384 | val = I915_READ(DP_TP_CTL(port)); | |
2385 | val &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK); | |
2386 | val |= DP_TP_CTL_LINK_TRAIN_PAT1; | |
2387 | I915_WRITE(DP_TP_CTL(port), val); | |
2388 | POSTING_READ(DP_TP_CTL(port)); | |
2389 | ||
2390 | if (wait) | |
2391 | intel_wait_ddi_buf_idle(dev_priv, port); | |
2392 | } | |
2393 | ||
0e32b39c | 2394 | val = DP_TP_CTL_ENABLE | |
c19b0669 | 2395 | DP_TP_CTL_LINK_TRAIN_PAT1 | DP_TP_CTL_SCRAMBLE_DISABLE; |
64ee2fd2 | 2396 | if (intel_dp->link_mst) |
0e32b39c DA |
2397 | val |= DP_TP_CTL_MODE_MST; |
2398 | else { | |
2399 | val |= DP_TP_CTL_MODE_SST; | |
2400 | if (drm_dp_enhanced_frame_cap(intel_dp->dpcd)) | |
2401 | val |= DP_TP_CTL_ENHANCED_FRAME_ENABLE; | |
2402 | } | |
c19b0669 PZ |
2403 | I915_WRITE(DP_TP_CTL(port), val); |
2404 | POSTING_READ(DP_TP_CTL(port)); | |
2405 | ||
2406 | intel_dp->DP |= DDI_BUF_CTL_ENABLE; | |
2407 | I915_WRITE(DDI_BUF_CTL(port), intel_dp->DP); | |
2408 | POSTING_READ(DDI_BUF_CTL(port)); | |
2409 | ||
2410 | udelay(600); | |
2411 | } | |
00c09d70 | 2412 | |
9935f7fa LY |
2413 | bool intel_ddi_is_audio_enabled(struct drm_i915_private *dev_priv, |
2414 | struct intel_crtc *intel_crtc) | |
2415 | { | |
2416 | u32 temp; | |
2417 | ||
2418 | if (intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_AUDIO)) { | |
2419 | temp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD); | |
2420 | if (temp & AUDIO_OUTPUT_ENABLE(intel_crtc->pipe)) | |
2421 | return true; | |
2422 | } | |
2423 | return false; | |
2424 | } | |
2425 | ||
6801c18c | 2426 | void intel_ddi_get_config(struct intel_encoder *encoder, |
5cec258b | 2427 | struct intel_crtc_state *pipe_config) |
045ac3b5 | 2428 | { |
fac5e23e | 2429 | struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); |
045ac3b5 | 2430 | struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc); |
0cb09a97 | 2431 | enum transcoder cpu_transcoder = pipe_config->cpu_transcoder; |
bbd440fb | 2432 | struct intel_hdmi *intel_hdmi; |
045ac3b5 JB |
2433 | u32 temp, flags = 0; |
2434 | ||
4d1de975 JN |
2435 | /* XXX: DSI transcoder paranoia */ |
2436 | if (WARN_ON(transcoder_is_dsi(cpu_transcoder))) | |
2437 | return; | |
2438 | ||
045ac3b5 JB |
2439 | temp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); |
2440 | if (temp & TRANS_DDI_PHSYNC) | |
2441 | flags |= DRM_MODE_FLAG_PHSYNC; | |
2442 | else | |
2443 | flags |= DRM_MODE_FLAG_NHSYNC; | |
2444 | if (temp & TRANS_DDI_PVSYNC) | |
2445 | flags |= DRM_MODE_FLAG_PVSYNC; | |
2446 | else | |
2447 | flags |= DRM_MODE_FLAG_NVSYNC; | |
2448 | ||
2d112de7 | 2449 | pipe_config->base.adjusted_mode.flags |= flags; |
42571aef VS |
2450 | |
2451 | switch (temp & TRANS_DDI_BPC_MASK) { | |
2452 | case TRANS_DDI_BPC_6: | |
2453 | pipe_config->pipe_bpp = 18; | |
2454 | break; | |
2455 | case TRANS_DDI_BPC_8: | |
2456 | pipe_config->pipe_bpp = 24; | |
2457 | break; | |
2458 | case TRANS_DDI_BPC_10: | |
2459 | pipe_config->pipe_bpp = 30; | |
2460 | break; | |
2461 | case TRANS_DDI_BPC_12: | |
2462 | pipe_config->pipe_bpp = 36; | |
2463 | break; | |
2464 | default: | |
2465 | break; | |
2466 | } | |
eb14cb74 VS |
2467 | |
2468 | switch (temp & TRANS_DDI_MODE_SELECT_MASK) { | |
2469 | case TRANS_DDI_MODE_SELECT_HDMI: | |
6897b4b5 | 2470 | pipe_config->has_hdmi_sink = true; |
bbd440fb DV |
2471 | intel_hdmi = enc_to_intel_hdmi(&encoder->base); |
2472 | ||
cda0aaaf | 2473 | if (intel_hdmi->infoframe_enabled(&encoder->base, pipe_config)) |
bbd440fb | 2474 | pipe_config->has_infoframe = true; |
15953637 SS |
2475 | |
2476 | if ((temp & TRANS_DDI_HDMI_SCRAMBLING_MASK) == | |
2477 | TRANS_DDI_HDMI_SCRAMBLING_MASK) | |
2478 | pipe_config->hdmi_scrambling = true; | |
2479 | if (temp & TRANS_DDI_HIGH_TMDS_CHAR_RATE) | |
2480 | pipe_config->hdmi_high_tmds_clock_ratio = true; | |
d4d6279a | 2481 | /* fall through */ |
eb14cb74 | 2482 | case TRANS_DDI_MODE_SELECT_DVI: |
d4d6279a ACO |
2483 | pipe_config->lane_count = 4; |
2484 | break; | |
eb14cb74 VS |
2485 | case TRANS_DDI_MODE_SELECT_FDI: |
2486 | break; | |
2487 | case TRANS_DDI_MODE_SELECT_DP_SST: | |
2488 | case TRANS_DDI_MODE_SELECT_DP_MST: | |
90a6b7b0 VS |
2489 | pipe_config->lane_count = |
2490 | ((temp & DDI_PORT_WIDTH_MASK) >> DDI_PORT_WIDTH_SHIFT) + 1; | |
eb14cb74 VS |
2491 | intel_dp_get_m_n(intel_crtc, pipe_config); |
2492 | break; | |
2493 | default: | |
2494 | break; | |
2495 | } | |
10214420 | 2496 | |
9935f7fa LY |
2497 | pipe_config->has_audio = |
2498 | intel_ddi_is_audio_enabled(dev_priv, intel_crtc); | |
9ed109a7 | 2499 | |
6aa23e65 JN |
2500 | if (encoder->type == INTEL_OUTPUT_EDP && dev_priv->vbt.edp.bpp && |
2501 | pipe_config->pipe_bpp > dev_priv->vbt.edp.bpp) { | |
10214420 DV |
2502 | /* |
2503 | * This is a big fat ugly hack. | |
2504 | * | |
2505 | * Some machines in UEFI boot mode provide us a VBT that has 18 | |
2506 | * bpp and 1.62 GHz link bandwidth for eDP, which for reasons | |
2507 | * unknown we fail to light up. Yet the same BIOS boots up with | |
2508 | * 24 bpp and 2.7 GHz link. Use the same bpp as the BIOS uses as | |
2509 | * max, not what it tells us to use. | |
2510 | * | |
2511 | * Note: This will still be broken if the eDP panel is not lit | |
2512 | * up by the BIOS, and thus we can't get the mode at module | |
2513 | * load. | |
2514 | */ | |
2515 | DRM_DEBUG_KMS("pipe has %d bpp for eDP panel, overriding BIOS-provided max %d bpp\n", | |
6aa23e65 JN |
2516 | pipe_config->pipe_bpp, dev_priv->vbt.edp.bpp); |
2517 | dev_priv->vbt.edp.bpp = pipe_config->pipe_bpp; | |
10214420 | 2518 | } |
11578553 | 2519 | |
22606a18 | 2520 | intel_ddi_clock_get(encoder, pipe_config); |
95a7a2ae | 2521 | |
cc3f90f0 | 2522 | if (IS_GEN9_LP(dev_priv)) |
95a7a2ae ID |
2523 | pipe_config->lane_lat_optim_mask = |
2524 | bxt_ddi_phy_get_lane_lat_optim_mask(encoder); | |
045ac3b5 JB |
2525 | } |
2526 | ||
5bfe2ac0 | 2527 | static bool intel_ddi_compute_config(struct intel_encoder *encoder, |
0a478c27 ML |
2528 | struct intel_crtc_state *pipe_config, |
2529 | struct drm_connector_state *conn_state) | |
00c09d70 | 2530 | { |
fac5e23e | 2531 | struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); |
5bfe2ac0 | 2532 | int type = encoder->type; |
eccb140b | 2533 | int port = intel_ddi_get_encoder_port(encoder); |
95a7a2ae | 2534 | int ret; |
00c09d70 | 2535 | |
5bfe2ac0 | 2536 | WARN(type == INTEL_OUTPUT_UNKNOWN, "compute_config() on unknown output!\n"); |
00c09d70 | 2537 | |
eccb140b DV |
2538 | if (port == PORT_A) |
2539 | pipe_config->cpu_transcoder = TRANSCODER_EDP; | |
2540 | ||
00c09d70 | 2541 | if (type == INTEL_OUTPUT_HDMI) |
0a478c27 | 2542 | ret = intel_hdmi_compute_config(encoder, pipe_config, conn_state); |
00c09d70 | 2543 | else |
0a478c27 | 2544 | ret = intel_dp_compute_config(encoder, pipe_config, conn_state); |
95a7a2ae | 2545 | |
cc3f90f0 | 2546 | if (IS_GEN9_LP(dev_priv) && ret) |
95a7a2ae ID |
2547 | pipe_config->lane_lat_optim_mask = |
2548 | bxt_ddi_phy_calc_lane_lat_optim_mask(encoder, | |
b284eeda | 2549 | pipe_config->lane_count); |
95a7a2ae ID |
2550 | |
2551 | return ret; | |
2552 | ||
00c09d70 PZ |
2553 | } |
2554 | ||
2555 | static const struct drm_encoder_funcs intel_ddi_funcs = { | |
bf93ba67 ID |
2556 | .reset = intel_dp_encoder_reset, |
2557 | .destroy = intel_dp_encoder_destroy, | |
00c09d70 PZ |
2558 | }; |
2559 | ||
4a28ae58 PZ |
2560 | static struct intel_connector * |
2561 | intel_ddi_init_dp_connector(struct intel_digital_port *intel_dig_port) | |
2562 | { | |
2563 | struct intel_connector *connector; | |
2564 | enum port port = intel_dig_port->port; | |
2565 | ||
9bdbd0b9 | 2566 | connector = intel_connector_alloc(); |
4a28ae58 PZ |
2567 | if (!connector) |
2568 | return NULL; | |
2569 | ||
2570 | intel_dig_port->dp.output_reg = DDI_BUF_CTL(port); | |
2571 | if (!intel_dp_init_connector(intel_dig_port, connector)) { | |
2572 | kfree(connector); | |
2573 | return NULL; | |
2574 | } | |
2575 | ||
2576 | return connector; | |
2577 | } | |
2578 | ||
2579 | static struct intel_connector * | |
2580 | intel_ddi_init_hdmi_connector(struct intel_digital_port *intel_dig_port) | |
2581 | { | |
2582 | struct intel_connector *connector; | |
2583 | enum port port = intel_dig_port->port; | |
2584 | ||
9bdbd0b9 | 2585 | connector = intel_connector_alloc(); |
4a28ae58 PZ |
2586 | if (!connector) |
2587 | return NULL; | |
2588 | ||
2589 | intel_dig_port->hdmi.hdmi_reg = DDI_BUF_CTL(port); | |
2590 | intel_hdmi_init_connector(intel_dig_port, connector); | |
2591 | ||
2592 | return connector; | |
2593 | } | |
2594 | ||
c39055b0 | 2595 | void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port) |
00c09d70 PZ |
2596 | { |
2597 | struct intel_digital_port *intel_dig_port; | |
2598 | struct intel_encoder *intel_encoder; | |
2599 | struct drm_encoder *encoder; | |
ff662124 | 2600 | bool init_hdmi, init_dp, init_lspcon = false; |
10e7bec3 VS |
2601 | int max_lanes; |
2602 | ||
2603 | if (I915_READ(DDI_BUF_CTL(PORT_A)) & DDI_A_4_LANES) { | |
2604 | switch (port) { | |
2605 | case PORT_A: | |
2606 | max_lanes = 4; | |
2607 | break; | |
2608 | case PORT_E: | |
2609 | max_lanes = 0; | |
2610 | break; | |
2611 | default: | |
2612 | max_lanes = 4; | |
2613 | break; | |
2614 | } | |
2615 | } else { | |
2616 | switch (port) { | |
2617 | case PORT_A: | |
2618 | max_lanes = 2; | |
2619 | break; | |
2620 | case PORT_E: | |
2621 | max_lanes = 2; | |
2622 | break; | |
2623 | default: | |
2624 | max_lanes = 4; | |
2625 | break; | |
2626 | } | |
2627 | } | |
311a2094 PZ |
2628 | |
2629 | init_hdmi = (dev_priv->vbt.ddi_port_info[port].supports_dvi || | |
2630 | dev_priv->vbt.ddi_port_info[port].supports_hdmi); | |
2631 | init_dp = dev_priv->vbt.ddi_port_info[port].supports_dp; | |
ff662124 SS |
2632 | |
2633 | if (intel_bios_is_lspcon_present(dev_priv, port)) { | |
2634 | /* | |
2635 | * Lspcon device needs to be driven with DP connector | |
2636 | * with special detection sequence. So make sure DP | |
2637 | * is initialized before lspcon. | |
2638 | */ | |
2639 | init_dp = true; | |
2640 | init_lspcon = true; | |
2641 | init_hdmi = false; | |
2642 | DRM_DEBUG_KMS("VBT says port %c has lspcon\n", port_name(port)); | |
2643 | } | |
2644 | ||
311a2094 | 2645 | if (!init_dp && !init_hdmi) { |
500ea70d | 2646 | DRM_DEBUG_KMS("VBT says port %c is not DVI/HDMI/DP compatible, respect it\n", |
311a2094 | 2647 | port_name(port)); |
500ea70d | 2648 | return; |
311a2094 | 2649 | } |
00c09d70 | 2650 | |
b14c5679 | 2651 | intel_dig_port = kzalloc(sizeof(*intel_dig_port), GFP_KERNEL); |
00c09d70 PZ |
2652 | if (!intel_dig_port) |
2653 | return; | |
2654 | ||
00c09d70 PZ |
2655 | intel_encoder = &intel_dig_port->base; |
2656 | encoder = &intel_encoder->base; | |
2657 | ||
c39055b0 | 2658 | drm_encoder_init(&dev_priv->drm, encoder, &intel_ddi_funcs, |
580d8ed5 | 2659 | DRM_MODE_ENCODER_TMDS, "DDI %c", port_name(port)); |
00c09d70 | 2660 | |
5bfe2ac0 | 2661 | intel_encoder->compute_config = intel_ddi_compute_config; |
00c09d70 | 2662 | intel_encoder->enable = intel_enable_ddi; |
cc3f90f0 | 2663 | if (IS_GEN9_LP(dev_priv)) |
95a7a2ae | 2664 | intel_encoder->pre_pll_enable = bxt_ddi_pre_pll_enable; |
00c09d70 PZ |
2665 | intel_encoder->pre_enable = intel_ddi_pre_enable; |
2666 | intel_encoder->disable = intel_disable_ddi; | |
2667 | intel_encoder->post_disable = intel_ddi_post_disable; | |
2668 | intel_encoder->get_hw_state = intel_ddi_get_hw_state; | |
045ac3b5 | 2669 | intel_encoder->get_config = intel_ddi_get_config; |
bf93ba67 | 2670 | intel_encoder->suspend = intel_dp_encoder_suspend; |
62b69566 | 2671 | intel_encoder->get_power_domains = intel_ddi_get_power_domains; |
00c09d70 PZ |
2672 | |
2673 | intel_dig_port->port = port; | |
bcf53de4 SM |
2674 | intel_dig_port->saved_port_bits = I915_READ(DDI_BUF_CTL(port)) & |
2675 | (DDI_BUF_PORT_REVERSAL | | |
2676 | DDI_A_4_LANES); | |
00c09d70 | 2677 | |
62b69566 ACO |
2678 | switch (port) { |
2679 | case PORT_A: | |
2680 | intel_dig_port->ddi_io_power_domain = | |
2681 | POWER_DOMAIN_PORT_DDI_A_IO; | |
2682 | break; | |
2683 | case PORT_B: | |
2684 | intel_dig_port->ddi_io_power_domain = | |
2685 | POWER_DOMAIN_PORT_DDI_B_IO; | |
2686 | break; | |
2687 | case PORT_C: | |
2688 | intel_dig_port->ddi_io_power_domain = | |
2689 | POWER_DOMAIN_PORT_DDI_C_IO; | |
2690 | break; | |
2691 | case PORT_D: | |
2692 | intel_dig_port->ddi_io_power_domain = | |
2693 | POWER_DOMAIN_PORT_DDI_D_IO; | |
2694 | break; | |
2695 | case PORT_E: | |
2696 | intel_dig_port->ddi_io_power_domain = | |
2697 | POWER_DOMAIN_PORT_DDI_E_IO; | |
2698 | break; | |
2699 | default: | |
2700 | MISSING_CASE(port); | |
2701 | } | |
2702 | ||
6c566dc9 MR |
2703 | /* |
2704 | * Bspec says that DDI_A_4_LANES is the only supported configuration | |
2705 | * for Broxton. Yet some BIOS fail to set this bit on port A if eDP | |
2706 | * wasn't lit up at boot. Force this bit on in our internal | |
2707 | * configuration so that we use the proper lane count for our | |
2708 | * calculations. | |
2709 | */ | |
cc3f90f0 | 2710 | if (IS_GEN9_LP(dev_priv) && port == PORT_A) { |
6c566dc9 MR |
2711 | if (!(intel_dig_port->saved_port_bits & DDI_A_4_LANES)) { |
2712 | DRM_DEBUG_KMS("BXT BIOS forgot to set DDI_A_4_LANES for port A; fixing\n"); | |
2713 | intel_dig_port->saved_port_bits |= DDI_A_4_LANES; | |
ed8d60f4 | 2714 | max_lanes = 4; |
6c566dc9 MR |
2715 | } |
2716 | } | |
2717 | ||
ed8d60f4 MR |
2718 | intel_dig_port->max_lanes = max_lanes; |
2719 | ||
00c09d70 | 2720 | intel_encoder->type = INTEL_OUTPUT_UNKNOWN; |
79f255a0 | 2721 | intel_encoder->power_domain = intel_port_to_power_domain(port); |
03cdc1d4 | 2722 | intel_encoder->port = port; |
f68d697e | 2723 | intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2); |
bc079e8b | 2724 | intel_encoder->cloneable = 0; |
00c09d70 | 2725 | |
f68d697e CW |
2726 | if (init_dp) { |
2727 | if (!intel_ddi_init_dp_connector(intel_dig_port)) | |
2728 | goto err; | |
13cf5504 | 2729 | |
f68d697e | 2730 | intel_dig_port->hpd_pulse = intel_dp_hpd_pulse; |
ca4c3890 | 2731 | dev_priv->hotplug.irq_port[port] = intel_dig_port; |
f68d697e | 2732 | } |
21a8e6a4 | 2733 | |
311a2094 PZ |
2734 | /* In theory we don't need the encoder->type check, but leave it just in |
2735 | * case we have some really bad VBTs... */ | |
f68d697e CW |
2736 | if (intel_encoder->type != INTEL_OUTPUT_EDP && init_hdmi) { |
2737 | if (!intel_ddi_init_hdmi_connector(intel_dig_port)) | |
2738 | goto err; | |
21a8e6a4 | 2739 | } |
f68d697e | 2740 | |
ff662124 SS |
2741 | if (init_lspcon) { |
2742 | if (lspcon_init(intel_dig_port)) | |
2743 | /* TODO: handle hdmi info frame part */ | |
2744 | DRM_DEBUG_KMS("LSPCON init success on port %c\n", | |
2745 | port_name(port)); | |
2746 | else | |
2747 | /* | |
2748 | * LSPCON init faied, but DP init was success, so | |
2749 | * lets try to drive as DP++ port. | |
2750 | */ | |
2751 | DRM_ERROR("LSPCON init failed on port %c\n", | |
2752 | port_name(port)); | |
2753 | } | |
2754 | ||
f68d697e CW |
2755 | return; |
2756 | ||
2757 | err: | |
2758 | drm_encoder_cleanup(encoder); | |
2759 | kfree(intel_dig_port); | |
00c09d70 | 2760 | } |