1 // SPDX-License-Identifier: MIT
2 /*
3 * Copyright © 2018 Intel Corporation
4 */
5
6 #include <linux/dmi.h>
7
8 #include <drm/drm_print.h>
9
10 #include "intel_display_core.h"
11 #include "intel_display_types.h"
12 #include "intel_quirks.h"
13
intel_set_quirk(struct intel_display * display,enum intel_quirk_id quirk)14 static void intel_set_quirk(struct intel_display *display, enum intel_quirk_id quirk)
15 {
16 display->quirks.mask |= BIT(quirk);
17 }
18
intel_set_dpcd_quirk(struct intel_dp * intel_dp,enum intel_quirk_id quirk)19 static void intel_set_dpcd_quirk(struct intel_dp *intel_dp, enum intel_quirk_id quirk)
20 {
21 intel_dp->quirks.mask |= BIT(quirk);
22 }
23
24 /*
25 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
26 */
quirk_ssc_force_disable(struct intel_display * display)27 static void quirk_ssc_force_disable(struct intel_display *display)
28 {
29 intel_set_quirk(display, QUIRK_LVDS_SSC_DISABLE);
30 drm_info(display->drm, "applying lvds SSC disable quirk\n");
31 }
32
33 /*
34 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
35 * brightness value
36 */
quirk_invert_brightness(struct intel_display * display)37 static void quirk_invert_brightness(struct intel_display *display)
38 {
39 intel_set_quirk(display, QUIRK_INVERT_BRIGHTNESS);
40 drm_info(display->drm, "applying inverted panel brightness quirk\n");
41 }
42
43 /* Some VBT's incorrectly indicate no backlight is present */
quirk_backlight_present(struct intel_display * display)44 static void quirk_backlight_present(struct intel_display *display)
45 {
46 intel_set_quirk(display, QUIRK_BACKLIGHT_PRESENT);
47 drm_info(display->drm, "applying backlight present quirk\n");
48 }
49
50 /* Toshiba Satellite P50-C-18C requires T12 delay to be min 800ms
51 * which is 300 ms greater than eDP spec T12 min.
52 */
quirk_increase_t12_delay(struct intel_display * display)53 static void quirk_increase_t12_delay(struct intel_display *display)
54 {
55 intel_set_quirk(display, QUIRK_INCREASE_T12_DELAY);
56 drm_info(display->drm, "Applying T12 delay quirk\n");
57 }
58
59 /*
60 * GeminiLake NUC HDMI outputs require additional off time
61 * this allows the onboard retimer to correctly sync to signal
62 */
quirk_increase_ddi_disabled_time(struct intel_display * display)63 static void quirk_increase_ddi_disabled_time(struct intel_display *display)
64 {
65 intel_set_quirk(display, QUIRK_INCREASE_DDI_DISABLED_TIME);
66 drm_info(display->drm, "Applying Increase DDI Disabled quirk\n");
67 }
68
quirk_no_pps_backlight_power_hook(struct intel_display * display)69 static void quirk_no_pps_backlight_power_hook(struct intel_display *display)
70 {
71 intel_set_quirk(display, QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK);
72 drm_info(display->drm, "Applying no pps backlight power quirk\n");
73 }
74
quirk_fw_sync_len(struct intel_dp * intel_dp)75 static void quirk_fw_sync_len(struct intel_dp *intel_dp)
76 {
77 struct intel_display *display = to_intel_display(intel_dp);
78
79 intel_set_dpcd_quirk(intel_dp, QUIRK_FW_SYNC_LEN);
80 drm_info(display->drm, "Applying Fast Wake sync pulse count quirk\n");
81 }
82
quirk_edp_limit_rate_hbr2(struct intel_display * display)83 static void quirk_edp_limit_rate_hbr2(struct intel_display *display)
84 {
85 intel_set_quirk(display, QUIRK_EDP_LIMIT_RATE_HBR2);
86 drm_info(display->drm, "Applying eDP Limit rate to HBR2 quirk\n");
87 }
88
quirk_disable_edp_panel_replay(struct intel_dp * intel_dp)89 static void quirk_disable_edp_panel_replay(struct intel_dp *intel_dp)
90 {
91 struct intel_display *display = to_intel_display(intel_dp);
92
93 intel_set_dpcd_quirk(intel_dp, QUIRK_DISABLE_EDP_PANEL_REPLAY);
94 drm_info(display->drm, "Applying disable Panel Replay quirk\n");
95 }
96
quirk_disable_psr2(struct intel_display * display)97 static void quirk_disable_psr2(struct intel_display *display)
98 {
99 intel_set_quirk(display, QUIRK_DISABLE_PSR2);
100 drm_info(display->drm, "PSR2 support not currently available for this setup, applying disable PSR2 quirk\n");
101 }
102
103 struct intel_quirk {
104 int device;
105 int subsystem_vendor;
106 int subsystem_device;
107 void (*hook)(struct intel_display *display);
108 };
109
110 struct intel_dpcd_quirk {
111 int device;
112 int subsystem_vendor;
113 int subsystem_device;
114 u8 sink_oui[3];
115 u8 sink_device_id[6];
116 void (*hook)(struct intel_dp *intel_dp);
117 };
118
119 #define SINK_OUI(first, second, third) { (first), (second), (third) }
120 #define SINK_DEVICE_ID(first, second, third, fourth, fifth, sixth) \
121 { (first), (second), (third), (fourth), (fifth), (sixth) }
122
123 #define SINK_DEVICE_ID_ANY SINK_DEVICE_ID(0, 0, 0, 0, 0, 0)
124
125 #define DEVICE_ID_ANY 0
126
127 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
128 struct intel_dmi_quirk {
129 void (*hook)(struct intel_display *display);
130 const struct dmi_system_id (*dmi_id_list)[];
131 };
132
intel_dmi_reverse_brightness(const struct dmi_system_id * id)133 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
134 {
135 DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
136 return 1;
137 }
138
intel_dmi_no_pps_backlight(const struct dmi_system_id * id)139 static int intel_dmi_no_pps_backlight(const struct dmi_system_id *id)
140 {
141 DRM_INFO("No pps backlight support on %s\n", id->ident);
142 return 1;
143 }
144
145 static const struct intel_dmi_quirk intel_dmi_quirks[] = {
146 {
147 .dmi_id_list = &(const struct dmi_system_id[]) {
148 {
149 .callback = intel_dmi_reverse_brightness,
150 .ident = "NCR Corporation",
151 .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
152 DMI_MATCH(DMI_PRODUCT_NAME, ""),
153 },
154 },
155 {
156 .callback = intel_dmi_reverse_brightness,
157 .ident = "Thundersoft TST178 tablet",
158 /* DMI strings are too generic, also match on BIOS date */
159 .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
160 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
161 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "To be filled by O.E.M."),
162 DMI_EXACT_MATCH(DMI_BIOS_DATE, "04/15/2014"),
163 },
164 },
165 { } /* terminating entry */
166 },
167 .hook = quirk_invert_brightness,
168 },
169 {
170 .dmi_id_list = &(const struct dmi_system_id[]) {
171 {
172 .callback = intel_dmi_no_pps_backlight,
173 .ident = "Google Lillipup sku524294",
174 .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Google"),
175 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Lindar"),
176 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "sku524294"),
177 },
178 },
179 {
180 .callback = intel_dmi_no_pps_backlight,
181 .ident = "Google Lillipup sku524295",
182 .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Google"),
183 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Lindar"),
184 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "sku524295"),
185 },
186 },
187 { }
188 },
189 .hook = quirk_no_pps_backlight_power_hook,
190 },
191 };
192
193 static struct intel_quirk intel_quirks[] = {
194 /* Lenovo U160 cannot use SSC on LVDS */
195 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
196
197 /* Sony Vaio Y cannot use SSC on LVDS */
198 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
199
200 /* Acer Aspire 5734Z must invert backlight brightness */
201 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
202
203 /* Acer/eMachines G725 */
204 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
205
206 /* Acer/eMachines e725 */
207 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
208
209 /* Acer/Packard Bell NCL20 */
210 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
211
212 /* Acer Aspire 4736Z */
213 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
214
215 /* Acer Aspire 5336 */
216 { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness },
217
218 /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
219 { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present },
220
221 /* Acer C720 Chromebook (Core i3 4005U) */
222 { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present },
223
224 /* Apple Macbook 2,1 (Core 2 T7400) */
225 { 0x27a2, 0x8086, 0x7270, quirk_backlight_present },
226
227 /* Apple Macbook 4,1 */
228 { 0x2a02, 0x106b, 0x00a1, quirk_backlight_present },
229
230 /* Toshiba CB35 Chromebook (Celeron 2955U) */
231 { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present },
232
233 /* HP Chromebook 14 (Celeron 2955U) */
234 { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present },
235
236 /* Dell Chromebook 11 */
237 { 0x0a06, 0x1028, 0x0a35, quirk_backlight_present },
238
239 /* Dell Chromebook 11 (2015 version) */
240 { 0x0a16, 0x1028, 0x0a35, quirk_backlight_present },
241
242 /* Toshiba Satellite P50-C-18C */
243 { 0x191B, 0x1179, 0xF840, quirk_increase_t12_delay },
244
245 /* GeminiLake NUC */
246 { 0x3185, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },
247 { 0x3184, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },
248 /* ASRock ITX*/
249 { 0x3185, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
250 { 0x3184, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
251 /* ECS Liva Q2 */
252 { 0x3185, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },
253 { 0x3184, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },
254 /* HP Notebook - 14-r206nv */
255 { 0x0f31, 0x103c, 0x220f, quirk_invert_brightness },
256
257 /* Dell XPS 13 7390 2-in-1 */
258 { 0x8a52, 0x1028, 0x08b0, quirk_edp_limit_rate_hbr2 },
259
260 /* HP Pavilion Plus Laptop 14-ew1xxx */
261 { 0x7d55, 0x103c, 0x8c31, quirk_edp_limit_rate_hbr2 },
262
263 /* Xiaomi Book Pro 14 2026 */
264 { 0xb081, 0x1d72, 0x2424, quirk_disable_psr2 },
265 };
266
267 static const struct intel_dpcd_quirk intel_dpcd_quirks[] = {
268 /* Dell Precision 5490 */
269 {
270 .device = 0x7d55,
271 .subsystem_vendor = 0x1028,
272 .subsystem_device = 0x0cc7,
273 .sink_oui = SINK_OUI(0x38, 0xec, 0x11),
274 .hook = quirk_fw_sync_len,
275 },
276 /* Dell XPS 14 DA14260 */
277 {
278 .device = DEVICE_ID_ANY,
279 .subsystem_vendor = 0x1028,
280 .subsystem_device = 0x0db9,
281 .sink_oui = SINK_OUI(0x00, 0x22, 0xb9),
282 .hook = quirk_disable_edp_panel_replay,
283 },
284 /* Dell XPS 16 DA16260 */
285 {
286 .device = DEVICE_ID_ANY,
287 .subsystem_vendor = 0x1028,
288 .subsystem_device = 0x0dba,
289 .sink_oui = SINK_OUI(0x00, 0x22, 0xb9),
290 .hook = quirk_disable_edp_panel_replay,
291 },
292 };
293
intel_init_quirks(struct intel_display * display)294 void intel_init_quirks(struct intel_display *display)
295 {
296 struct pci_dev *d = to_pci_dev(display->drm->dev);
297 int i;
298
299 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
300 struct intel_quirk *q = &intel_quirks[i];
301
302 if ((d->device == q->device ||
303 q->device == DEVICE_ID_ANY) &&
304 (d->subsystem_vendor == q->subsystem_vendor ||
305 q->subsystem_vendor == PCI_ANY_ID) &&
306 (d->subsystem_device == q->subsystem_device ||
307 q->subsystem_device == PCI_ANY_ID))
308 q->hook(display);
309 }
310 for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
311 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
312 intel_dmi_quirks[i].hook(display);
313 }
314 }
315
intel_init_dpcd_quirks(struct intel_dp * intel_dp,const struct drm_dp_dpcd_ident * ident)316 void intel_init_dpcd_quirks(struct intel_dp *intel_dp,
317 const struct drm_dp_dpcd_ident *ident)
318 {
319 struct intel_display *display = to_intel_display(intel_dp);
320 struct pci_dev *d = to_pci_dev(display->drm->dev);
321 int i;
322
323 for (i = 0; i < ARRAY_SIZE(intel_dpcd_quirks); i++) {
324 const struct intel_dpcd_quirk *q = &intel_dpcd_quirks[i];
325
326 if ((d->device == q->device ||
327 q->device == DEVICE_ID_ANY) &&
328 (d->subsystem_vendor == q->subsystem_vendor ||
329 q->subsystem_vendor == PCI_ANY_ID) &&
330 (d->subsystem_device == q->subsystem_device ||
331 q->subsystem_device == PCI_ANY_ID) &&
332 !memcmp(q->sink_oui, ident->oui, sizeof(ident->oui)) &&
333 (!memcmp(q->sink_device_id, ident->device_id,
334 sizeof(ident->device_id)) ||
335 mem_is_zero(q->sink_device_id, sizeof(q->sink_device_id))))
336 q->hook(intel_dp);
337 }
338 }
339
intel_has_quirk(struct intel_display * display,enum intel_quirk_id quirk)340 bool intel_has_quirk(struct intel_display *display, enum intel_quirk_id quirk)
341 {
342 return display->quirks.mask & BIT(quirk);
343 }
344
intel_has_dpcd_quirk(struct intel_dp * intel_dp,enum intel_quirk_id quirk)345 bool intel_has_dpcd_quirk(struct intel_dp *intel_dp, enum intel_quirk_id quirk)
346 {
347 return intel_dp->quirks.mask & BIT(quirk);
348 }
349