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 14 static void intel_set_quirk(struct intel_display *display, enum intel_quirk_id quirk) 15 { 16 display->quirks.mask |= BIT(quirk); 17 } 18 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 */ 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 */ 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 */ 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 */ 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 */ 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 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 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 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 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 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 }; 132 133 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 } 138 139 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 /* Xiaomi Book Pro 14 2026 */ 261 { 0xb081, 0x1d72, 0x2424, quirk_disable_psr2 }, 262 }; 263 264 static const struct intel_dpcd_quirk intel_dpcd_quirks[] = { 265 /* Dell Precision 5490 */ 266 { 267 .device = 0x7d55, 268 .subsystem_vendor = 0x1028, 269 .subsystem_device = 0x0cc7, 270 .sink_oui = SINK_OUI(0x38, 0xec, 0x11), 271 .hook = quirk_fw_sync_len, 272 }, 273 /* Dell XPS 14 DA14260 */ 274 { 275 .device = DEVICE_ID_ANY, 276 .subsystem_vendor = 0x1028, 277 .subsystem_device = 0x0db9, 278 .sink_oui = SINK_OUI(0x00, 0x22, 0xb9), 279 .hook = quirk_disable_edp_panel_replay, 280 }, 281 /* Dell XPS 16 DA16260 */ 282 { 283 .device = DEVICE_ID_ANY, 284 .subsystem_vendor = 0x1028, 285 .subsystem_device = 0x0dba, 286 .sink_oui = SINK_OUI(0x00, 0x22, 0xb9), 287 .hook = quirk_disable_edp_panel_replay, 288 }, 289 }; 290 291 void intel_init_quirks(struct intel_display *display) 292 { 293 struct pci_dev *d = to_pci_dev(display->drm->dev); 294 int i; 295 296 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { 297 struct intel_quirk *q = &intel_quirks[i]; 298 299 if ((d->device == q->device || 300 q->device == DEVICE_ID_ANY) && 301 (d->subsystem_vendor == q->subsystem_vendor || 302 q->subsystem_vendor == PCI_ANY_ID) && 303 (d->subsystem_device == q->subsystem_device || 304 q->subsystem_device == PCI_ANY_ID)) 305 q->hook(display); 306 } 307 for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) { 308 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0) 309 intel_dmi_quirks[i].hook(display); 310 } 311 } 312 313 void intel_init_dpcd_quirks(struct intel_dp *intel_dp, 314 const struct drm_dp_dpcd_ident *ident) 315 { 316 struct intel_display *display = to_intel_display(intel_dp); 317 struct pci_dev *d = to_pci_dev(display->drm->dev); 318 int i; 319 320 for (i = 0; i < ARRAY_SIZE(intel_dpcd_quirks); i++) { 321 const struct intel_dpcd_quirk *q = &intel_dpcd_quirks[i]; 322 323 if ((d->device == q->device || 324 q->device == DEVICE_ID_ANY) && 325 (d->subsystem_vendor == q->subsystem_vendor || 326 q->subsystem_vendor == PCI_ANY_ID) && 327 (d->subsystem_device == q->subsystem_device || 328 q->subsystem_device == PCI_ANY_ID) && 329 !memcmp(q->sink_oui, ident->oui, sizeof(ident->oui)) && 330 (!memcmp(q->sink_device_id, ident->device_id, 331 sizeof(ident->device_id)) || 332 mem_is_zero(q->sink_device_id, sizeof(q->sink_device_id)))) 333 q->hook(intel_dp); 334 } 335 } 336 337 bool intel_has_quirk(struct intel_display *display, enum intel_quirk_id quirk) 338 { 339 return display->quirks.mask & BIT(quirk); 340 } 341 342 bool intel_has_dpcd_quirk(struct intel_dp *intel_dp, enum intel_quirk_id quirk) 343 { 344 return intel_dp->quirks.mask & BIT(quirk); 345 } 346