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
intel_set_quirk(struct intel_display * display,enum intel_quirk_id quirk)12 static void intel_set_quirk(struct intel_display *display, enum intel_quirk_id quirk)
13 {
14 display->quirks.mask |= BIT(quirk);
15 }
16
intel_set_dpcd_quirk(struct intel_dp * intel_dp,enum intel_quirk_id quirk)17 static 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 reason
24 */
quirk_ssc_force_disable(struct intel_display * display)25 static 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 backlight
33 * brightness value
34 */
quirk_invert_brightness(struct intel_display * display)35 static 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 */
quirk_backlight_present(struct intel_display * display)42 static 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 800ms
49 * which is 300 ms greater than eDP spec T12 min.
50 */
quirk_increase_t12_delay(struct intel_display * display)51 static 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 time
59 * this allows the onboard retimer to correctly sync to signal
60 */
quirk_increase_ddi_disabled_time(struct intel_display * display)61 static 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
quirk_no_pps_backlight_power_hook(struct intel_display * display)67 static 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
quirk_fw_sync_len(struct intel_dp * intel_dp)73 static 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
81 struct intel_quirk {
82 int device;
83 int subsystem_vendor;
84 int subsystem_device;
85 void (*hook)(struct intel_display *display);
86 };
87
88 struct 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 */
104 struct intel_dmi_quirk {
105 void (*hook)(struct intel_display *display);
106 const struct dmi_system_id (*dmi_id_list)[];
107 };
108
intel_dmi_reverse_brightness(const struct dmi_system_id * id)109 static 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
intel_dmi_no_pps_backlight(const struct dmi_system_id * id)115 static 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
121 static 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
169 static 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
234 static 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
intel_init_quirks(struct intel_display * display)246 void 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
intel_init_dpcd_quirks(struct intel_dp * intel_dp,const struct drm_dp_dpcd_ident * ident)267 void 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
intel_has_quirk(struct intel_display * display,enum intel_quirk_id quirk)290 bool intel_has_quirk(struct intel_display *display, enum intel_quirk_id quirk)
291 {
292 return display->quirks.mask & BIT(quirk);
293 }
294
intel_has_dpcd_quirk(struct intel_dp * intel_dp,enum intel_quirk_id quirk)295 bool 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