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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
12static 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 */
20static 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 */
30static 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 */
37static 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 */
46static 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 */
56static 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
62static 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
68struct 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 */
76struct intel_dmi_quirk {
77 void (*hook)(struct drm_i915_private *i915);
78 const struct dmi_system_id (*dmi_id_list)[];
79};
80
81static 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
87static 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
93static 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
141static 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
206void 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
227bool intel_has_quirk(struct drm_i915_private *i915, enum intel_quirk_id quirk)
228{
229 return i915->display.quirks.mask & BIT(quirk);
230}