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 struct intel_quirk { 98 int device; 99 int subsystem_vendor; 100 int subsystem_device; 101 void (*hook)(struct intel_display *display); 102 }; 103 104 struct intel_dpcd_quirk { 105 int device; 106 int subsystem_vendor; 107 int subsystem_device; 108 u8 sink_oui[3]; 109 u8 sink_device_id[6]; 110 void (*hook)(struct intel_dp *intel_dp); 111 }; 112 113 #define SINK_OUI(first, second, third) { (first), (second), (third) } 114 #define SINK_DEVICE_ID(first, second, third, fourth, fifth, sixth) \ 115 { (first), (second), (third), (fourth), (fifth), (sixth) } 116 117 #define SINK_DEVICE_ID_ANY SINK_DEVICE_ID(0, 0, 0, 0, 0, 0) 118 119 #define DEVICE_ID_ANY 0 120 121 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */ 122 struct intel_dmi_quirk { 123 void (*hook)(struct intel_display *display); 124 const struct dmi_system_id (*dmi_id_list)[]; 125 }; 126 127 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id) 128 { 129 DRM_INFO("Backlight polarity reversed on %s\n", id->ident); 130 return 1; 131 } 132 133 static int intel_dmi_no_pps_backlight(const struct dmi_system_id *id) 134 { 135 DRM_INFO("No pps backlight support on %s\n", id->ident); 136 return 1; 137 } 138 139 static const struct intel_dmi_quirk intel_dmi_quirks[] = { 140 { 141 .dmi_id_list = &(const struct dmi_system_id[]) { 142 { 143 .callback = intel_dmi_reverse_brightness, 144 .ident = "NCR Corporation", 145 .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"), 146 DMI_MATCH(DMI_PRODUCT_NAME, ""), 147 }, 148 }, 149 { 150 .callback = intel_dmi_reverse_brightness, 151 .ident = "Thundersoft TST178 tablet", 152 /* DMI strings are too generic, also match on BIOS date */ 153 .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), 154 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"), 155 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "To be filled by O.E.M."), 156 DMI_EXACT_MATCH(DMI_BIOS_DATE, "04/15/2014"), 157 }, 158 }, 159 { } /* terminating entry */ 160 }, 161 .hook = quirk_invert_brightness, 162 }, 163 { 164 .dmi_id_list = &(const struct dmi_system_id[]) { 165 { 166 .callback = intel_dmi_no_pps_backlight, 167 .ident = "Google Lillipup sku524294", 168 .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Google"), 169 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Lindar"), 170 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "sku524294"), 171 }, 172 }, 173 { 174 .callback = intel_dmi_no_pps_backlight, 175 .ident = "Google Lillipup sku524295", 176 .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Google"), 177 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Lindar"), 178 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "sku524295"), 179 }, 180 }, 181 { } 182 }, 183 .hook = quirk_no_pps_backlight_power_hook, 184 }, 185 }; 186 187 static struct intel_quirk intel_quirks[] = { 188 /* Lenovo U160 cannot use SSC on LVDS */ 189 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable }, 190 191 /* Sony Vaio Y cannot use SSC on LVDS */ 192 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, 193 194 /* Acer Aspire 5734Z must invert backlight brightness */ 195 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness }, 196 197 /* Acer/eMachines G725 */ 198 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness }, 199 200 /* Acer/eMachines e725 */ 201 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness }, 202 203 /* Acer/Packard Bell NCL20 */ 204 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness }, 205 206 /* Acer Aspire 4736Z */ 207 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness }, 208 209 /* Acer Aspire 5336 */ 210 { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness }, 211 212 /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */ 213 { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present }, 214 215 /* Acer C720 Chromebook (Core i3 4005U) */ 216 { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present }, 217 218 /* Apple Macbook 2,1 (Core 2 T7400) */ 219 { 0x27a2, 0x8086, 0x7270, quirk_backlight_present }, 220 221 /* Apple Macbook 4,1 */ 222 { 0x2a02, 0x106b, 0x00a1, quirk_backlight_present }, 223 224 /* Toshiba CB35 Chromebook (Celeron 2955U) */ 225 { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present }, 226 227 /* HP Chromebook 14 (Celeron 2955U) */ 228 { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present }, 229 230 /* Dell Chromebook 11 */ 231 { 0x0a06, 0x1028, 0x0a35, quirk_backlight_present }, 232 233 /* Dell Chromebook 11 (2015 version) */ 234 { 0x0a16, 0x1028, 0x0a35, quirk_backlight_present }, 235 236 /* Toshiba Satellite P50-C-18C */ 237 { 0x191B, 0x1179, 0xF840, quirk_increase_t12_delay }, 238 239 /* GeminiLake NUC */ 240 { 0x3185, 0x8086, 0x2072, quirk_increase_ddi_disabled_time }, 241 { 0x3184, 0x8086, 0x2072, quirk_increase_ddi_disabled_time }, 242 /* ASRock ITX*/ 243 { 0x3185, 0x1849, 0x2212, quirk_increase_ddi_disabled_time }, 244 { 0x3184, 0x1849, 0x2212, quirk_increase_ddi_disabled_time }, 245 /* ECS Liva Q2 */ 246 { 0x3185, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time }, 247 { 0x3184, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time }, 248 /* HP Notebook - 14-r206nv */ 249 { 0x0f31, 0x103c, 0x220f, quirk_invert_brightness }, 250 251 /* Dell XPS 13 7390 2-in-1 */ 252 { 0x8a52, 0x1028, 0x08b0, quirk_edp_limit_rate_hbr2 }, 253 }; 254 255 static const struct intel_dpcd_quirk intel_dpcd_quirks[] = { 256 /* Dell Precision 5490 */ 257 { 258 .device = 0x7d55, 259 .subsystem_vendor = 0x1028, 260 .subsystem_device = 0x0cc7, 261 .sink_oui = SINK_OUI(0x38, 0xec, 0x11), 262 .hook = quirk_fw_sync_len, 263 }, 264 /* Dell XPS 14 DA14260 */ 265 { 266 .device = DEVICE_ID_ANY, 267 .subsystem_vendor = 0x1028, 268 .subsystem_device = 0x0db9, 269 .sink_oui = SINK_OUI(0x00, 0x22, 0xb9), 270 .hook = quirk_disable_edp_panel_replay, 271 }, 272 }; 273 274 void intel_init_quirks(struct intel_display *display) 275 { 276 struct pci_dev *d = to_pci_dev(display->drm->dev); 277 int i; 278 279 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { 280 struct intel_quirk *q = &intel_quirks[i]; 281 282 if ((d->device == q->device || 283 q->device == DEVICE_ID_ANY) && 284 (d->subsystem_vendor == q->subsystem_vendor || 285 q->subsystem_vendor == PCI_ANY_ID) && 286 (d->subsystem_device == q->subsystem_device || 287 q->subsystem_device == PCI_ANY_ID)) 288 q->hook(display); 289 } 290 for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) { 291 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0) 292 intel_dmi_quirks[i].hook(display); 293 } 294 } 295 296 void intel_init_dpcd_quirks(struct intel_dp *intel_dp, 297 const struct drm_dp_dpcd_ident *ident) 298 { 299 struct intel_display *display = to_intel_display(intel_dp); 300 struct pci_dev *d = to_pci_dev(display->drm->dev); 301 int i; 302 303 for (i = 0; i < ARRAY_SIZE(intel_dpcd_quirks); i++) { 304 const struct intel_dpcd_quirk *q = &intel_dpcd_quirks[i]; 305 306 if ((d->device == q->device || 307 q->device == DEVICE_ID_ANY) && 308 (d->subsystem_vendor == q->subsystem_vendor || 309 q->subsystem_vendor == PCI_ANY_ID) && 310 (d->subsystem_device == q->subsystem_device || 311 q->subsystem_device == PCI_ANY_ID) && 312 !memcmp(q->sink_oui, ident->oui, sizeof(ident->oui)) && 313 (!memcmp(q->sink_device_id, ident->device_id, 314 sizeof(ident->device_id)) || 315 mem_is_zero(q->sink_device_id, sizeof(q->sink_device_id)))) 316 q->hook(intel_dp); 317 } 318 } 319 320 bool intel_has_quirk(struct intel_display *display, enum intel_quirk_id quirk) 321 { 322 return display->quirks.mask & BIT(quirk); 323 } 324 325 bool intel_has_dpcd_quirk(struct intel_dp *intel_dp, enum intel_quirk_id quirk) 326 { 327 return intel_dp->quirks.mask & BIT(quirk); 328 } 329