1 // SPDX-License-Identifier: MIT
2 /*
3 * Copyright © 2018 Intel Corporation
4 */
5
6 #include <linux/dmi.h>
7
8 #include <drm/drm_print.h>
9
10 #include "intel_display_core.h"
11 #include "intel_display_types.h"
12 #include "intel_quirks.h"
13
intel_set_quirk(struct intel_display * display,enum intel_quirk_id quirk)14 static void intel_set_quirk(struct intel_display *display, enum intel_quirk_id quirk)
15 {
16 display->quirks.mask |= BIT(quirk);
17 }
18
intel_set_dpcd_quirk(struct intel_dp * intel_dp,enum intel_quirk_id quirk)19 static void intel_set_dpcd_quirk(struct intel_dp *intel_dp, enum intel_quirk_id quirk)
20 {
21 intel_dp->quirks.mask |= BIT(quirk);
22 }
23
24 /*
25 * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
26 */
quirk_ssc_force_disable(struct intel_display * display)27 static void quirk_ssc_force_disable(struct intel_display *display)
28 {
29 intel_set_quirk(display, QUIRK_LVDS_SSC_DISABLE);
30 drm_info(display->drm, "applying lvds SSC disable quirk\n");
31 }
32
33 /*
34 * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
35 * brightness value
36 */
quirk_invert_brightness(struct intel_display * display)37 static void quirk_invert_brightness(struct intel_display *display)
38 {
39 intel_set_quirk(display, QUIRK_INVERT_BRIGHTNESS);
40 drm_info(display->drm, "applying inverted panel brightness quirk\n");
41 }
42
43 /* Some VBT's incorrectly indicate no backlight is present */
quirk_backlight_present(struct intel_display * display)44 static void quirk_backlight_present(struct intel_display *display)
45 {
46 intel_set_quirk(display, QUIRK_BACKLIGHT_PRESENT);
47 drm_info(display->drm, "applying backlight present quirk\n");
48 }
49
50 /* Toshiba Satellite P50-C-18C requires T12 delay to be min 800ms
51 * which is 300 ms greater than eDP spec T12 min.
52 */
quirk_increase_t12_delay(struct intel_display * display)53 static void quirk_increase_t12_delay(struct intel_display *display)
54 {
55 intel_set_quirk(display, QUIRK_INCREASE_T12_DELAY);
56 drm_info(display->drm, "Applying T12 delay quirk\n");
57 }
58
59 /*
60 * GeminiLake NUC HDMI outputs require additional off time
61 * this allows the onboard retimer to correctly sync to signal
62 */
quirk_increase_ddi_disabled_time(struct intel_display * display)63 static void quirk_increase_ddi_disabled_time(struct intel_display *display)
64 {
65 intel_set_quirk(display, QUIRK_INCREASE_DDI_DISABLED_TIME);
66 drm_info(display->drm, "Applying Increase DDI Disabled quirk\n");
67 }
68
quirk_no_pps_backlight_power_hook(struct intel_display * display)69 static void quirk_no_pps_backlight_power_hook(struct intel_display *display)
70 {
71 intel_set_quirk(display, QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK);
72 drm_info(display->drm, "Applying no pps backlight power quirk\n");
73 }
74
quirk_fw_sync_len(struct intel_dp * intel_dp)75 static void quirk_fw_sync_len(struct intel_dp *intel_dp)
76 {
77 struct intel_display *display = to_intel_display(intel_dp);
78
79 intel_set_dpcd_quirk(intel_dp, QUIRK_FW_SYNC_LEN);
80 drm_info(display->drm, "Applying Fast Wake sync pulse count quirk\n");
81 }
82
83 struct intel_quirk {
84 int device;
85 int subsystem_vendor;
86 int subsystem_device;
87 void (*hook)(struct intel_display *display);
88 };
89
90 struct intel_dpcd_quirk {
91 int device;
92 int subsystem_vendor;
93 int subsystem_device;
94 u8 sink_oui[3];
95 u8 sink_device_id[6];
96 void (*hook)(struct intel_dp *intel_dp);
97 };
98
99 #define SINK_OUI(first, second, third) { (first), (second), (third) }
100 #define SINK_DEVICE_ID(first, second, third, fourth, fifth, sixth) \
101 { (first), (second), (third), (fourth), (fifth), (sixth) }
102
103 #define SINK_DEVICE_ID_ANY SINK_DEVICE_ID(0, 0, 0, 0, 0, 0)
104
105 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
106 struct intel_dmi_quirk {
107 void (*hook)(struct intel_display *display);
108 const struct dmi_system_id (*dmi_id_list)[];
109 };
110
intel_dmi_reverse_brightness(const struct dmi_system_id * id)111 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
112 {
113 DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
114 return 1;
115 }
116
intel_dmi_no_pps_backlight(const struct dmi_system_id * id)117 static int intel_dmi_no_pps_backlight(const struct dmi_system_id *id)
118 {
119 DRM_INFO("No pps backlight support on %s\n", id->ident);
120 return 1;
121 }
122
123 static const struct intel_dmi_quirk intel_dmi_quirks[] = {
124 {
125 .dmi_id_list = &(const struct dmi_system_id[]) {
126 {
127 .callback = intel_dmi_reverse_brightness,
128 .ident = "NCR Corporation",
129 .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
130 DMI_MATCH(DMI_PRODUCT_NAME, ""),
131 },
132 },
133 {
134 .callback = intel_dmi_reverse_brightness,
135 .ident = "Thundersoft TST178 tablet",
136 /* DMI strings are too generic, also match on BIOS date */
137 .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
138 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
139 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "To be filled by O.E.M."),
140 DMI_EXACT_MATCH(DMI_BIOS_DATE, "04/15/2014"),
141 },
142 },
143 { } /* terminating entry */
144 },
145 .hook = quirk_invert_brightness,
146 },
147 {
148 .dmi_id_list = &(const struct dmi_system_id[]) {
149 {
150 .callback = intel_dmi_no_pps_backlight,
151 .ident = "Google Lillipup sku524294",
152 .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Google"),
153 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Lindar"),
154 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "sku524294"),
155 },
156 },
157 {
158 .callback = intel_dmi_no_pps_backlight,
159 .ident = "Google Lillipup sku524295",
160 .matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Google"),
161 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Lindar"),
162 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "sku524295"),
163 },
164 },
165 { }
166 },
167 .hook = quirk_no_pps_backlight_power_hook,
168 },
169 };
170
171 static struct intel_quirk intel_quirks[] = {
172 /* Lenovo U160 cannot use SSC on LVDS */
173 { 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
174
175 /* Sony Vaio Y cannot use SSC on LVDS */
176 { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
177
178 /* Acer Aspire 5734Z must invert backlight brightness */
179 { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
180
181 /* Acer/eMachines G725 */
182 { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
183
184 /* Acer/eMachines e725 */
185 { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
186
187 /* Acer/Packard Bell NCL20 */
188 { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
189
190 /* Acer Aspire 4736Z */
191 { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
192
193 /* Acer Aspire 5336 */
194 { 0x2a42, 0x1025, 0x048a, quirk_invert_brightness },
195
196 /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
197 { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present },
198
199 /* Acer C720 Chromebook (Core i3 4005U) */
200 { 0x0a16, 0x1025, 0x0a11, quirk_backlight_present },
201
202 /* Apple Macbook 2,1 (Core 2 T7400) */
203 { 0x27a2, 0x8086, 0x7270, quirk_backlight_present },
204
205 /* Apple Macbook 4,1 */
206 { 0x2a02, 0x106b, 0x00a1, quirk_backlight_present },
207
208 /* Toshiba CB35 Chromebook (Celeron 2955U) */
209 { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present },
210
211 /* HP Chromebook 14 (Celeron 2955U) */
212 { 0x0a06, 0x103c, 0x21ed, quirk_backlight_present },
213
214 /* Dell Chromebook 11 */
215 { 0x0a06, 0x1028, 0x0a35, quirk_backlight_present },
216
217 /* Dell Chromebook 11 (2015 version) */
218 { 0x0a16, 0x1028, 0x0a35, quirk_backlight_present },
219
220 /* Toshiba Satellite P50-C-18C */
221 { 0x191B, 0x1179, 0xF840, quirk_increase_t12_delay },
222
223 /* GeminiLake NUC */
224 { 0x3185, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },
225 { 0x3184, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },
226 /* ASRock ITX*/
227 { 0x3185, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
228 { 0x3184, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
229 /* ECS Liva Q2 */
230 { 0x3185, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },
231 { 0x3184, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },
232 /* HP Notebook - 14-r206nv */
233 { 0x0f31, 0x103c, 0x220f, quirk_invert_brightness },
234 };
235
236 static const struct intel_dpcd_quirk intel_dpcd_quirks[] = {
237 /* Dell Precision 5490 */
238 {
239 .device = 0x7d55,
240 .subsystem_vendor = 0x1028,
241 .subsystem_device = 0x0cc7,
242 .sink_oui = SINK_OUI(0x38, 0xec, 0x11),
243 .hook = quirk_fw_sync_len,
244 },
245
246 };
247
intel_init_quirks(struct intel_display * display)248 void intel_init_quirks(struct intel_display *display)
249 {
250 struct pci_dev *d = to_pci_dev(display->drm->dev);
251 int i;
252
253 for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
254 struct intel_quirk *q = &intel_quirks[i];
255
256 if (d->device == q->device &&
257 (d->subsystem_vendor == q->subsystem_vendor ||
258 q->subsystem_vendor == PCI_ANY_ID) &&
259 (d->subsystem_device == q->subsystem_device ||
260 q->subsystem_device == PCI_ANY_ID))
261 q->hook(display);
262 }
263 for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
264 if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
265 intel_dmi_quirks[i].hook(display);
266 }
267 }
268
intel_init_dpcd_quirks(struct intel_dp * intel_dp,const struct drm_dp_dpcd_ident * ident)269 void intel_init_dpcd_quirks(struct intel_dp *intel_dp,
270 const struct drm_dp_dpcd_ident *ident)
271 {
272 struct intel_display *display = to_intel_display(intel_dp);
273 struct pci_dev *d = to_pci_dev(display->drm->dev);
274 int i;
275
276 for (i = 0; i < ARRAY_SIZE(intel_dpcd_quirks); i++) {
277 const struct intel_dpcd_quirk *q = &intel_dpcd_quirks[i];
278
279 if (d->device == q->device &&
280 (d->subsystem_vendor == q->subsystem_vendor ||
281 q->subsystem_vendor == PCI_ANY_ID) &&
282 (d->subsystem_device == q->subsystem_device ||
283 q->subsystem_device == PCI_ANY_ID) &&
284 !memcmp(q->sink_oui, ident->oui, sizeof(ident->oui)) &&
285 (!memcmp(q->sink_device_id, ident->device_id,
286 sizeof(ident->device_id)) ||
287 mem_is_zero(q->sink_device_id, sizeof(q->sink_device_id))))
288 q->hook(intel_dp);
289 }
290 }
291
intel_has_quirk(struct intel_display * display,enum intel_quirk_id quirk)292 bool intel_has_quirk(struct intel_display *display, enum intel_quirk_id quirk)
293 {
294 return display->quirks.mask & BIT(quirk);
295 }
296
intel_has_dpcd_quirk(struct intel_dp * intel_dp,enum intel_quirk_id quirk)297 bool intel_has_dpcd_quirk(struct intel_dp *intel_dp, enum intel_quirk_id quirk)
298 {
299 return intel_dp->quirks.mask & BIT(quirk);
300 }
301