drivers/gpu/drm/i915/display/intel_quirks.c

   1 // SPDX-License-Identifier: MIT
   2 /*
   3  * Copyright © 2018 Intel Corporation
   4  */
   5
   6 #include <linux/dmi.h>
   7
   8 #include "i915_drv.h"
   9 #include "intel_display_types.h"
  10 #include "intel_quirks.h"
  11
  12 static void intel_set_quirk(struct drm_i915_private *i915, enum intel_quirk_id quirk)
  13 {
  14         i915->display.quirks.mask |= BIT(quirk);
  15 }
  16
  17 /*
  18  * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
  19  */
  20 static void quirk_ssc_force_disable(struct drm_i915_private *i915)
  21 {
  22         intel_set_quirk(i915, QUIRK_LVDS_SSC_DISABLE);
  23         drm_info(&i915->drm, "applying lvds SSC disable quirk\n");
  24 }
  25
  26 /*
  27  * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
  28  * brightness value
  29  */
  30 static void quirk_invert_brightness(struct drm_i915_private *i915)
  31 {
  32         intel_set_quirk(i915, QUIRK_INVERT_BRIGHTNESS);
  33         drm_info(&i915->drm, "applying inverted panel brightness quirk\n");
  34 }
  35
  36 /* Some VBT's incorrectly indicate no backlight is present */
  37 static void quirk_backlight_present(struct drm_i915_private *i915)
  38 {
  39         intel_set_quirk(i915, QUIRK_BACKLIGHT_PRESENT);
  40         drm_info(&i915->drm, "applying backlight present quirk\n");
  41 }
  42
  43 /* Toshiba Satellite P50-C-18C requires T12 delay to be min 800ms
  44  * which is 300 ms greater than eDP spec T12 min.
  45  */
  46 static void quirk_increase_t12_delay(struct drm_i915_private *i915)
  47 {
  48         intel_set_quirk(i915, QUIRK_INCREASE_T12_DELAY);
  49         drm_info(&i915->drm, "Applying T12 delay quirk\n");
  50 }
  51
  52 /*
  53  * GeminiLake NUC HDMI outputs require additional off time
  54  * this allows the onboard retimer to correctly sync to signal
  55  */
  56 static void quirk_increase_ddi_disabled_time(struct drm_i915_private *i915)
  57 {
  58         intel_set_quirk(i915, QUIRK_INCREASE_DDI_DISABLED_TIME);
  59         drm_info(&i915->drm, "Applying Increase DDI Disabled quirk\n");
  60 }
  61
  62 static void quirk_no_pps_backlight_power_hook(struct drm_i915_private *i915)
  63 {
  64         intel_set_quirk(i915, QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK);
  65         drm_info(&i915->drm, "Applying no pps backlight power quirk\n");
  66 }
  67
  68 struct intel_quirk {
  69         int device;
  70         int subsystem_vendor;
  71         int subsystem_device;
  72         void (*hook)(struct drm_i915_private *i915);
  73 };
  74
  75 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
  76 struct intel_dmi_quirk {
  77         void (*hook)(struct drm_i915_private *i915);
  78         const struct dmi_system_id (*dmi_id_list)[];
  79 };
  80
  81 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
  82 {
  83         DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
  84         return 1;
  85 }
  86
  87 static int intel_dmi_no_pps_backlight(const struct dmi_system_id *id)
  88 {
  89         DRM_INFO("No pps backlight support on %s\n", id->ident);
  90         return 1;
  91 }
  92
  93 static const struct intel_dmi_quirk intel_dmi_quirks[] = {
  94         {
  95                 .dmi_id_list = &(const struct dmi_system_id[]) {
  96                         {
  97                                 .callback = intel_dmi_reverse_brightness,
  98                                 .ident = "NCR Corporation",
  99                                 .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
 100                                             DMI_MATCH(DMI_PRODUCT_NAME, ""),
 101                                 },
 102                         },
 103                         {
 104                                 .callback = intel_dmi_reverse_brightness,
 105                                 .ident = "Thundersoft TST178 tablet",
 106                                 /* DMI strings are too generic, also match on BIOS date */
 107                                 .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
 108                                             DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
 109                                             DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "To be filled by O.E.M."),
 110                                             DMI_EXACT_MATCH(DMI_BIOS_DATE, "04/15/2014"),
 111                                 },
 112                         },
 113                         { }  /* terminating entry */
 114                 },
 115                 .hook = quirk_invert_brightness,
 116         },
 117         {
 118                 .dmi_id_list = &(const struct dmi_system_id[]) {
 119                         {
 120                                 .callback = intel_dmi_no_pps_backlight,
 121                                 .ident = "Google Lillipup sku524294",
 122                                 .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Google"),
 123                                             DMI_EXACT_MATCH(DMI_BOARD_NAME, "Lindar"),
 124                                             DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "sku524294"),
 125                                 },
 126                         },
 127                         {
 128                                 .callback = intel_dmi_no_pps_backlight,
 129                                 .ident = "Google Lillipup sku524295",
 130                                 .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Google"),
 131                                             DMI_EXACT_MATCH(DMI_BOARD_NAME, "Lindar"),
 132                                             DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "sku524295"),
 133                                 },
 134                         },
 135                         { }
 136                 },
 137                 .hook = quirk_no_pps_backlight_power_hook,
 138         },
 139 };
 140
 141 static struct intel_quirk intel_quirks[] = {
 142         /* Lenovo U160 cannot use SSC on LVDS */
 143         { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
 144
 145         /* Sony Vaio Y cannot use SSC on LVDS */
 146         { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
 147
 148         /* Acer Aspire 5734Z must invert backlight brightness */
 149         { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
 150
 151         /* Acer/eMachines G725 */
 152         { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
 153
 154         /* Acer/eMachines e725 */
 155         { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
 156
 157         /* Acer/Packard Bell NCL20 */
 158         { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
 159
 160         /* Acer Aspire 4736Z */
 161         { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
 162
 163         /* Acer Aspire 5336 */
 164         { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness },
 165
 166         /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
 167         { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present },
 168
 169         /* Acer C720 Chromebook (Core i3 4005U) */
 170         { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present },
 171
 172         /* Apple Macbook 2,1 (Core 2 T7400) */
 173         { 0x27a2, 0x8086, 0x7270, quirk_backlight_present },
 174
 175         /* Apple Macbook 4,1 */
 176         { 0x2a02, 0x106b, 0x00a1, quirk_backlight_present },
 177
 178         /* Toshiba CB35 Chromebook (Celeron 2955U) */
 179         { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present },
 180
 181         /* HP Chromebook 14 (Celeron 2955U) */
 182         { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present },
 183
 184         /* Dell Chromebook 11 */
 185         { 0x0a06, 0x1028, 0x0a35, quirk_backlight_present },
 186
 187         /* Dell Chromebook 11 (2015 version) */
 188         { 0x0a16, 0x1028, 0x0a35, quirk_backlight_present },
 189
 190         /* Toshiba Satellite P50-C-18C */
 191         { 0x191B, 0x1179, 0xF840, quirk_increase_t12_delay },
 192
 193         /* GeminiLake NUC */
 194         { 0x3185, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },
 195         { 0x3184, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },
 196         /* ASRock ITX*/
 197         { 0x3185, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
 198         { 0x3184, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
 199         /* ECS Liva Q2 */
 200         { 0x3185, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },
 201         { 0x3184, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },
 202         /* HP Notebook - 14-r206nv */
 203         { 0x0f31, 0x103c, 0x220f, quirk_invert_brightness },
 204 };
 205
 206 void intel_init_quirks(struct drm_i915_private *i915)
 207 {
 208         struct pci_dev *d = to_pci_dev(i915->drm.dev);
 209         int i;
 210
 211         for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
 212                 struct intel_quirk *q = &intel_quirks[i];
 213
 214                 if (d->device == q->device &&
 215                     (d->subsystem_vendor == q->subsystem_vendor ||
 216                      q->subsystem_vendor == PCI_ANY_ID) &&
 217                     (d->subsystem_device == q->subsystem_device ||
 218                      q->subsystem_device == PCI_ANY_ID))
 219                         q->hook(i915);
 220         }
 221         for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
 222                 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
 223                         intel_dmi_quirks[i].hook(i915);
 224         }
 225 }
 226
 227 bool intel_has_quirk(struct drm_i915_private *i915, enum intel_quirk_id quirk)
 228 {
 229         return i915->display.quirks.mask & BIT(quirk);
 230 }