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1// SPDX-License-Identifier: MIT2/*3 * Copyright © 2018 Intel Corporation4 */5 6#include <linux/dmi.h>7 8#include "i915_drv.h"9#include "intel_display_types.h"10#include "intel_quirks.h"11 12static void intel_set_quirk(struct intel_display *display, enum intel_quirk_id quirk)13{14 display->quirks.mask |= BIT(quirk);15}16 17static void intel_set_dpcd_quirk(struct intel_dp *intel_dp, enum intel_quirk_id quirk)18{19 intel_dp->quirks.mask |= BIT(quirk);20}21 22/*23 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason24 */25static void quirk_ssc_force_disable(struct intel_display *display)26{27 intel_set_quirk(display, QUIRK_LVDS_SSC_DISABLE);28 drm_info(display->drm, "applying lvds SSC disable quirk\n");29}30 31/*32 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight33 * brightness value34 */35static void quirk_invert_brightness(struct intel_display *display)36{37 intel_set_quirk(display, QUIRK_INVERT_BRIGHTNESS);38 drm_info(display->drm, "applying inverted panel brightness quirk\n");39}40 41/* Some VBT's incorrectly indicate no backlight is present */42static void quirk_backlight_present(struct intel_display *display)43{44 intel_set_quirk(display, QUIRK_BACKLIGHT_PRESENT);45 drm_info(display->drm, "applying backlight present quirk\n");46}47 48/* Toshiba Satellite P50-C-18C requires T12 delay to be min 800ms49 * which is 300 ms greater than eDP spec T12 min.50 */51static void quirk_increase_t12_delay(struct intel_display *display)52{53 intel_set_quirk(display, QUIRK_INCREASE_T12_DELAY);54 drm_info(display->drm, "Applying T12 delay quirk\n");55}56 57/*58 * GeminiLake NUC HDMI outputs require additional off time59 * this allows the onboard retimer to correctly sync to signal60 */61static void quirk_increase_ddi_disabled_time(struct intel_display *display)62{63 intel_set_quirk(display, QUIRK_INCREASE_DDI_DISABLED_TIME);64 drm_info(display->drm, "Applying Increase DDI Disabled quirk\n");65}66 67static void quirk_no_pps_backlight_power_hook(struct intel_display *display)68{69 intel_set_quirk(display, QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK);70 drm_info(display->drm, "Applying no pps backlight power quirk\n");71}72 73static void quirk_fw_sync_len(struct intel_dp *intel_dp)74{75 struct intel_display *display = to_intel_display(intel_dp);76 77 intel_set_dpcd_quirk(intel_dp, QUIRK_FW_SYNC_LEN);78 drm_info(display->drm, "Applying Fast Wake sync pulse count quirk\n");79}80 81struct intel_quirk {82 int device;83 int subsystem_vendor;84 int subsystem_device;85 void (*hook)(struct intel_display *display);86};87 88struct intel_dpcd_quirk {89 int device;90 int subsystem_vendor;91 int subsystem_device;92 u8 sink_oui[3];93 u8 sink_device_id[6];94 void (*hook)(struct intel_dp *intel_dp);95};96 97#define SINK_OUI(first, second, third) { (first), (second), (third) }98#define SINK_DEVICE_ID(first, second, third, fourth, fifth, sixth) \99 { (first), (second), (third), (fourth), (fifth), (sixth) }100 101#define SINK_DEVICE_ID_ANY SINK_DEVICE_ID(0, 0, 0, 0, 0, 0)102 103/* For systems that don't have a meaningful PCI subdevice/subvendor ID */104struct intel_dmi_quirk {105 void (*hook)(struct intel_display *display);106 const struct dmi_system_id (*dmi_id_list)[];107};108 109static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)110{111 DRM_INFO("Backlight polarity reversed on %s\n", id->ident);112 return 1;113}114 115static int intel_dmi_no_pps_backlight(const struct dmi_system_id *id)116{117 DRM_INFO("No pps backlight support on %s\n", id->ident);118 return 1;119}120 121static const struct intel_dmi_quirk intel_dmi_quirks[] = {122 {123 .dmi_id_list = &(const struct dmi_system_id[]) {124 {125 .callback = intel_dmi_reverse_brightness,126 .ident = "NCR Corporation",127 .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),128 DMI_MATCH(DMI_PRODUCT_NAME, ""),129 },130 },131 {132 .callback = intel_dmi_reverse_brightness,133 .ident = "Thundersoft TST178 tablet",134 /* DMI strings are too generic, also match on BIOS date */135 .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),136 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"),137 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "To be filled by O.E.M."),138 DMI_EXACT_MATCH(DMI_BIOS_DATE, "04/15/2014"),139 },140 },141 { } /* terminating entry */142 },143 .hook = quirk_invert_brightness,144 },145 {146 .dmi_id_list = &(const struct dmi_system_id[]) {147 {148 .callback = intel_dmi_no_pps_backlight,149 .ident = "Google Lillipup sku524294",150 .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Google"),151 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Lindar"),152 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "sku524294"),153 },154 },155 {156 .callback = intel_dmi_no_pps_backlight,157 .ident = "Google Lillipup sku524295",158 .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Google"),159 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Lindar"),160 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "sku524295"),161 },162 },163 { }164 },165 .hook = quirk_no_pps_backlight_power_hook,166 },167};168 169static struct intel_quirk intel_quirks[] = {170 /* Lenovo U160 cannot use SSC on LVDS */171 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },172 173 /* Sony Vaio Y cannot use SSC on LVDS */174 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },175 176 /* Acer Aspire 5734Z must invert backlight brightness */177 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },178 179 /* Acer/eMachines G725 */180 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },181 182 /* Acer/eMachines e725 */183 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },184 185 /* Acer/Packard Bell NCL20 */186 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },187 188 /* Acer Aspire 4736Z */189 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },190 191 /* Acer Aspire 5336 */192 { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness },193 194 /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */195 { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present },196 197 /* Acer C720 Chromebook (Core i3 4005U) */198 { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present },199 200 /* Apple Macbook 2,1 (Core 2 T7400) */201 { 0x27a2, 0x8086, 0x7270, quirk_backlight_present },202 203 /* Apple Macbook 4,1 */204 { 0x2a02, 0x106b, 0x00a1, quirk_backlight_present },205 206 /* Toshiba CB35 Chromebook (Celeron 2955U) */207 { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present },208 209 /* HP Chromebook 14 (Celeron 2955U) */210 { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present },211 212 /* Dell Chromebook 11 */213 { 0x0a06, 0x1028, 0x0a35, quirk_backlight_present },214 215 /* Dell Chromebook 11 (2015 version) */216 { 0x0a16, 0x1028, 0x0a35, quirk_backlight_present },217 218 /* Toshiba Satellite P50-C-18C */219 { 0x191B, 0x1179, 0xF840, quirk_increase_t12_delay },220 221 /* GeminiLake NUC */222 { 0x3185, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },223 { 0x3184, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },224 /* ASRock ITX*/225 { 0x3185, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },226 { 0x3184, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },227 /* ECS Liva Q2 */228 { 0x3185, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },229 { 0x3184, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },230 /* HP Notebook - 14-r206nv */231 { 0x0f31, 0x103c, 0x220f, quirk_invert_brightness },232};233 234static struct intel_dpcd_quirk intel_dpcd_quirks[] = {235 /* Dell Precision 5490 */236 {237 .device = 0x7d55,238 .subsystem_vendor = 0x1028,239 .subsystem_device = 0x0cc7,240 .sink_oui = SINK_OUI(0x38, 0xec, 0x11),241 .hook = quirk_fw_sync_len,242 },243 244};245 246void intel_init_quirks(struct intel_display *display)247{248 struct pci_dev *d = to_pci_dev(display->drm->dev);249 int i;250 251 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {252 struct intel_quirk *q = &intel_quirks[i];253 254 if (d->device == q->device &&255 (d->subsystem_vendor == q->subsystem_vendor ||256 q->subsystem_vendor == PCI_ANY_ID) &&257 (d->subsystem_device == q->subsystem_device ||258 q->subsystem_device == PCI_ANY_ID))259 q->hook(display);260 }261 for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {262 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)263 intel_dmi_quirks[i].hook(display);264 }265}266 267void intel_init_dpcd_quirks(struct intel_dp *intel_dp,268 const struct drm_dp_dpcd_ident *ident)269{270 struct intel_display *display = to_intel_display(intel_dp);271 struct pci_dev *d = to_pci_dev(display->drm->dev);272 int i;273 274 for (i = 0; i < ARRAY_SIZE(intel_dpcd_quirks); i++) {275 struct intel_dpcd_quirk *q = &intel_dpcd_quirks[i];276 277 if (d->device == q->device &&278 (d->subsystem_vendor == q->subsystem_vendor ||279 q->subsystem_vendor == PCI_ANY_ID) &&280 (d->subsystem_device == q->subsystem_device ||281 q->subsystem_device == PCI_ANY_ID) &&282 !memcmp(q->sink_oui, ident->oui, sizeof(ident->oui)) &&283 (!memcmp(q->sink_device_id, ident->device_id,284 sizeof(ident->device_id)) ||285 mem_is_zero(q->sink_device_id, sizeof(q->sink_device_id))))286 q->hook(intel_dp);287 }288}289 290bool intel_has_quirk(struct intel_display *display, enum intel_quirk_id quirk)291{292 return display->quirks.mask & BIT(quirk);293}294 295bool intel_has_dpcd_quirk(struct intel_dp *intel_dp, enum intel_quirk_id quirk)296{297 return intel_dp->quirks.mask & BIT(quirk);298}299