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 */
quirk_ssc_force_disable(struct drm_i915_private * i915)14 static 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 */
quirk_invert_brightness(struct drm_i915_private * i915)24 static 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 */
quirk_backlight_present(struct drm_i915_private * i915)31 static 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 */
quirk_increase_t12_delay(struct drm_i915_private * i915)40 static 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 */
quirk_increase_ddi_disabled_time(struct drm_i915_private * i915)50 static 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
quirk_no_pps_backlight_power_hook(struct drm_i915_private * i915)56 static 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
62 struct 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 */
70 struct intel_dmi_quirk {
71 void (*hook)(struct drm_i915_private *i915);
72 const struct dmi_system_id (*dmi_id_list)[];
73 };
74
intel_dmi_reverse_brightness(const struct dmi_system_id * id)75 static 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
intel_dmi_no_pps_backlight(const struct dmi_system_id * id)81 static 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
87 static 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
135 static 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 /* ECS Liva Q2 */
194 { 0x3185, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },
195 { 0x3184, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },
196 /* HP Notebook - 14-r206nv */
197 { 0x0f31, 0x103c, 0x220f, quirk_invert_brightness },
198 };
199
intel_init_quirks(struct drm_i915_private * i915)200 void intel_init_quirks(struct drm_i915_private *i915)
201 {
202 struct pci_dev *d = to_pci_dev(i915->drm.dev);
203 int i;
204
205 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
206 struct intel_quirk *q = &intel_quirks[i];
207
208 if (d->device == q->device &&
209 (d->subsystem_vendor == q->subsystem_vendor ||
210 q->subsystem_vendor == PCI_ANY_ID) &&
211 (d->subsystem_device == q->subsystem_device ||
212 q->subsystem_device == PCI_ANY_ID))
213 q->hook(i915);
214 }
215 for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
216 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
217 intel_dmi_quirks[i].hook(i915);
218 }
219 }
220