LXR linux/drivers/gpu/drm/i915/display/intel

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