intel_quirks.c

  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
 14static void intel_set_quirk(struct intel_display *display, enum intel_quirk_id quirk)
 15{
 16	display->quirks.mask |= BIT(quirk);
 17}
 18
 19static 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 */
 27static 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 */
 37static 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 */
 44static 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 */
 53static 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 */
 63static 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
 69static 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
 75static 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
 83static void quirk_edp_limit_rate_hbr2(struct intel_display *display)
 84{
 85	intel_set_quirk(display, QUIRK_EDP_LIMIT_RATE_HBR2);
 86	drm_info(display->drm, "Applying eDP Limit rate to HBR2 quirk\n");
 87}
 88
 89struct intel_quirk {
 90	int device;
 91	int subsystem_vendor;
 92	int subsystem_device;
 93	void (*hook)(struct intel_display *display);
 94};
 95
 96struct intel_dpcd_quirk {
 97	int device;
 98	int subsystem_vendor;
 99	int subsystem_device;
100	u8 sink_oui[3];
101	u8 sink_device_id[6];
102	void (*hook)(struct intel_dp *intel_dp);
103};
104
105#define SINK_OUI(first, second, third) { (first), (second), (third) }
106#define SINK_DEVICE_ID(first, second, third, fourth, fifth, sixth) \
107	{ (first), (second), (third), (fourth), (fifth), (sixth) }
108
109#define SINK_DEVICE_ID_ANY	SINK_DEVICE_ID(0, 0, 0, 0, 0, 0)
110
111/* For systems that don't have a meaningful PCI subdevice/subvendor ID */
112struct intel_dmi_quirk {
113	void (*hook)(struct intel_display *display);
114	const struct dmi_system_id (*dmi_id_list)[];
115};
116
117static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
118{
119	DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
120	return 1;
121}
122
123static int intel_dmi_no_pps_backlight(const struct dmi_system_id *id)
124{
125	DRM_INFO("No pps backlight support on %s\n", id->ident);
126	return 1;
127}
128
129static const struct intel_dmi_quirk intel_dmi_quirks[] = {
130	{
131		.dmi_id_list = &(const struct dmi_system_id[]) {
132			{
133				.callback = intel_dmi_reverse_brightness,
134				.ident = "NCR Corporation",
135				.matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
136					    DMI_MATCH(DMI_PRODUCT_NAME, ""),
137				},
138			},
139			{
140				.callback = intel_dmi_reverse_brightness,
141				.ident = "Thundersoft TST178 tablet",
142				/* DMI strings are too generic, also match on BIOS date */
143				.matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
144					    DMI_EXACT_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
145					    DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "To be filled by O.E.M."),
146					    DMI_EXACT_MATCH(DMI_BIOS_DATE, "04/15/2014"),
147				},
148			},
149			{ }  /* terminating entry */
150		},
151		.hook = quirk_invert_brightness,
152	},
153	{
154		.dmi_id_list = &(const struct dmi_system_id[]) {
155			{
156				.callback = intel_dmi_no_pps_backlight,
157				.ident = "Google Lillipup sku524294",
158				.matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Google"),
159					    DMI_EXACT_MATCH(DMI_BOARD_NAME, "Lindar"),
160					    DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "sku524294"),
161				},
162			},
163			{
164				.callback = intel_dmi_no_pps_backlight,
165				.ident = "Google Lillipup sku524295",
166				.matches = {DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Google"),
167					    DMI_EXACT_MATCH(DMI_BOARD_NAME, "Lindar"),
168					    DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "sku524295"),
169				},
170			},
171			{ }
172		},
173		.hook = quirk_no_pps_backlight_power_hook,
174	},
175};
176
177static struct intel_quirk intel_quirks[] = {
178	/* Lenovo U160 cannot use SSC on LVDS */
179	{ 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
180
181	/* Sony Vaio Y cannot use SSC on LVDS */
182	{ 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
183
184	/* Acer Aspire 5734Z must invert backlight brightness */
185	{ 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
186
187	/* Acer/eMachines G725 */
188	{ 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
189
190	/* Acer/eMachines e725 */
191	{ 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
192
193	/* Acer/Packard Bell NCL20 */
194	{ 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
195
196	/* Acer Aspire 4736Z */
197	{ 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
198
199	/* Acer Aspire 5336 */
200	{ 0x2a42, 0x1025, 0x048a, quirk_invert_brightness },
201
202	/* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
203	{ 0x0a06, 0x1025, 0x0a11, quirk_backlight_present },
204
205	/* Acer C720 Chromebook (Core i3 4005U) */
206	{ 0x0a16, 0x1025, 0x0a11, quirk_backlight_present },
207
208	/* Apple Macbook 2,1 (Core 2 T7400) */
209	{ 0x27a2, 0x8086, 0x7270, quirk_backlight_present },
210
211	/* Apple Macbook 4,1 */
212	{ 0x2a02, 0x106b, 0x00a1, quirk_backlight_present },
213
214	/* Toshiba CB35 Chromebook (Celeron 2955U) */
215	{ 0x0a06, 0x1179, 0x0a88, quirk_backlight_present },
216
217	/* HP Chromebook 14 (Celeron 2955U) */
218	{ 0x0a06, 0x103c, 0x21ed, quirk_backlight_present },
219
220	/* Dell Chromebook 11 */
221	{ 0x0a06, 0x1028, 0x0a35, quirk_backlight_present },
222
223	/* Dell Chromebook 11 (2015 version) */
224	{ 0x0a16, 0x1028, 0x0a35, quirk_backlight_present },
225
226	/* Toshiba Satellite P50-C-18C */
227	{ 0x191B, 0x1179, 0xF840, quirk_increase_t12_delay },
228
229	/* GeminiLake NUC */
230	{ 0x3185, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },
231	{ 0x3184, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },
232	/* ASRock ITX*/
233	{ 0x3185, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
234	{ 0x3184, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
235	/* ECS Liva Q2 */
236	{ 0x3185, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },
237	{ 0x3184, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },
238	/* HP Notebook - 14-r206nv */
239	{ 0x0f31, 0x103c, 0x220f, quirk_invert_brightness },
240
241	/* Dell XPS 13 7390 2-in-1 */
242	{ 0x8a52, 0x1028, 0x08b0, quirk_edp_limit_rate_hbr2 },
243};
244
245static const struct intel_dpcd_quirk intel_dpcd_quirks[] = {
246	/* Dell Precision 5490 */
247	{
248		.device = 0x7d55,
249		.subsystem_vendor = 0x1028,
250		.subsystem_device = 0x0cc7,
251		.sink_oui = SINK_OUI(0x38, 0xec, 0x11),
252		.hook = quirk_fw_sync_len,
253	},
254
255};
256
257void intel_init_quirks(struct intel_display *display)
258{
259	struct pci_dev *d = to_pci_dev(display->drm->dev);
260	int i;
261
262	for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
263		struct intel_quirk *q = &intel_quirks[i];
264
265		if (d->device == q->device &&
266		    (d->subsystem_vendor == q->subsystem_vendor ||
267		     q->subsystem_vendor == PCI_ANY_ID) &&
268		    (d->subsystem_device == q->subsystem_device ||
269		     q->subsystem_device == PCI_ANY_ID))
270			q->hook(display);
271	}
272	for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
273		if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
274			intel_dmi_quirks[i].hook(display);
275	}
276}
277
278void intel_init_dpcd_quirks(struct intel_dp *intel_dp,
279			    const struct drm_dp_dpcd_ident *ident)
280{
281	struct intel_display *display = to_intel_display(intel_dp);
282	struct pci_dev *d = to_pci_dev(display->drm->dev);
283	int i;
284
285	for (i = 0; i < ARRAY_SIZE(intel_dpcd_quirks); i++) {
286		const struct intel_dpcd_quirk *q = &intel_dpcd_quirks[i];
287
288		if (d->device == q->device &&
289		    (d->subsystem_vendor == q->subsystem_vendor ||
290		     q->subsystem_vendor == PCI_ANY_ID) &&
291		    (d->subsystem_device == q->subsystem_device ||
292		     q->subsystem_device == PCI_ANY_ID) &&
293		    !memcmp(q->sink_oui, ident->oui, sizeof(ident->oui)) &&
294		    (!memcmp(q->sink_device_id, ident->device_id,
295			    sizeof(ident->device_id)) ||
296		     mem_is_zero(q->sink_device_id, sizeof(q->sink_device_id))))
297			q->hook(intel_dp);
298	}
299}
300
301bool intel_has_quirk(struct intel_display *display, enum intel_quirk_id quirk)
302{
303	return display->quirks.mask & BIT(quirk);
304}
305
306bool intel_has_dpcd_quirk(struct intel_dp *intel_dp, enum intel_quirk_id quirk)
307{
308	return intel_dp->quirks.mask & BIT(quirk);
309}