xref: /netbsd-src/sys/external/bsd/drm2/dist/drm/i915/display/intel_quirks.c (revision 41ec02673d281bbb3d38e6c78504ce6e30c228c1)
1 /*	$NetBSD: intel_quirks.c,v 1.2 2021/12/18 23:45:30 riastradh Exp $	*/
2 
3 // SPDX-License-Identifier: MIT
4 /*
5  * Copyright © 2018 Intel Corporation
6  */
7 
8 #include <sys/cdefs.h>
9 __KERNEL_RCSID(0, "$NetBSD: intel_quirks.c,v 1.2 2021/12/18 23:45:30 riastradh Exp $");
10 
11 #include <linux/dmi.h>
12 
13 #include "intel_display_types.h"
14 #include "intel_quirks.h"
15 
16 /*
17  * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
18  */
quirk_ssc_force_disable(struct drm_i915_private * i915)19 static void quirk_ssc_force_disable(struct drm_i915_private *i915)
20 {
21 	i915->quirks |= QUIRK_LVDS_SSC_DISABLE;
22 	DRM_INFO("applying lvds SSC disable quirk\n");
23 }
24 
25 /*
26  * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
27  * brightness value
28  */
quirk_invert_brightness(struct drm_i915_private * i915)29 static void quirk_invert_brightness(struct drm_i915_private *i915)
30 {
31 	i915->quirks |= QUIRK_INVERT_BRIGHTNESS;
32 	DRM_INFO("applying inverted panel brightness quirk\n");
33 }
34 
35 /* Some VBT's incorrectly indicate no backlight is present */
quirk_backlight_present(struct drm_i915_private * i915)36 static void quirk_backlight_present(struct drm_i915_private *i915)
37 {
38 	i915->quirks |= QUIRK_BACKLIGHT_PRESENT;
39 	DRM_INFO("applying backlight present quirk\n");
40 }
41 
42 /* Toshiba Satellite P50-C-18C requires T12 delay to be min 800ms
43  * which is 300 ms greater than eDP spec T12 min.
44  */
quirk_increase_t12_delay(struct drm_i915_private * i915)45 static void quirk_increase_t12_delay(struct drm_i915_private *i915)
46 {
47 	i915->quirks |= QUIRK_INCREASE_T12_DELAY;
48 	DRM_INFO("Applying T12 delay quirk\n");
49 }
50 
51 /*
52  * GeminiLake NUC HDMI outputs require additional off time
53  * this allows the onboard retimer to correctly sync to signal
54  */
quirk_increase_ddi_disabled_time(struct drm_i915_private * i915)55 static void quirk_increase_ddi_disabled_time(struct drm_i915_private *i915)
56 {
57 	i915->quirks |= QUIRK_INCREASE_DDI_DISABLED_TIME;
58 	DRM_INFO("Applying Increase DDI Disabled quirk\n");
59 }
60 
61 struct intel_quirk {
62 	int device;
63 	int subsystem_vendor;
64 	int subsystem_device;
65 	void (*hook)(struct drm_i915_private *i915);
66 };
67 
68 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
69 struct intel_dmi_quirk {
70 	void (*hook)(struct drm_i915_private *i915);
71 	const struct dmi_system_id (*dmi_id_list)[];
72 };
73 
intel_dmi_reverse_brightness(const struct dmi_system_id * id)74 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
75 {
76 	DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
77 	return 1;
78 }
79 
80 static const struct intel_dmi_quirk intel_dmi_quirks[] = {
81 	{
82 		.dmi_id_list = &(const struct dmi_system_id[]) {
83 			{
84 				.callback = intel_dmi_reverse_brightness,
85 				.ident = "NCR Corporation",
86 				.matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
87 					    DMI_MATCH(DMI_PRODUCT_NAME, ""),
88 				},
89 			},
90 			{ }  /* terminating entry */
91 		},
92 		.hook = quirk_invert_brightness,
93 	},
94 };
95 
96 static struct intel_quirk intel_quirks[] = {
97 	/* Lenovo U160 cannot use SSC on LVDS */
98 	{ 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
99 
100 	/* Sony Vaio Y cannot use SSC on LVDS */
101 	{ 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
102 
103 	/* Acer Aspire 5734Z must invert backlight brightness */
104 	{ 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
105 
106 	/* Acer/eMachines G725 */
107 	{ 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
108 
109 	/* Acer/eMachines e725 */
110 	{ 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
111 
112 	/* Acer/Packard Bell NCL20 */
113 	{ 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
114 
115 	/* Acer Aspire 4736Z */
116 	{ 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
117 
118 	/* Acer Aspire 5336 */
119 	{ 0x2a42, 0x1025, 0x048a, quirk_invert_brightness },
120 
121 	/* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
122 	{ 0x0a06, 0x1025, 0x0a11, quirk_backlight_present },
123 
124 	/* Acer C720 Chromebook (Core i3 4005U) */
125 	{ 0x0a16, 0x1025, 0x0a11, quirk_backlight_present },
126 
127 	/* Apple Macbook 2,1 (Core 2 T7400) */
128 	{ 0x27a2, 0x8086, 0x7270, quirk_backlight_present },
129 
130 	/* Apple Macbook 4,1 */
131 	{ 0x2a02, 0x106b, 0x00a1, quirk_backlight_present },
132 
133 	/* Toshiba CB35 Chromebook (Celeron 2955U) */
134 	{ 0x0a06, 0x1179, 0x0a88, quirk_backlight_present },
135 
136 	/* HP Chromebook 14 (Celeron 2955U) */
137 	{ 0x0a06, 0x103c, 0x21ed, quirk_backlight_present },
138 
139 	/* Dell Chromebook 11 */
140 	{ 0x0a06, 0x1028, 0x0a35, quirk_backlight_present },
141 
142 	/* Dell Chromebook 11 (2015 version) */
143 	{ 0x0a16, 0x1028, 0x0a35, quirk_backlight_present },
144 
145 	/* Toshiba Satellite P50-C-18C */
146 	{ 0x191B, 0x1179, 0xF840, quirk_increase_t12_delay },
147 
148 	/* GeminiLake NUC */
149 	{ 0x3185, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },
150 	{ 0x3184, 0x8086, 0x2072, quirk_increase_ddi_disabled_time },
151 	/* ASRock ITX*/
152 	{ 0x3185, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
153 	{ 0x3184, 0x1849, 0x2212, quirk_increase_ddi_disabled_time },
154 };
155 
intel_init_quirks(struct drm_i915_private * i915)156 void intel_init_quirks(struct drm_i915_private *i915)
157 {
158 	struct pci_dev *d = i915->drm.pdev;
159 	int i;
160 
161 	for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
162 		struct intel_quirk *q = &intel_quirks[i];
163 
164 		if (d->device == q->device &&
165 		    (d->subsystem_vendor == q->subsystem_vendor ||
166 		     q->subsystem_vendor == PCI_ANY_ID) &&
167 		    (d->subsystem_device == q->subsystem_device ||
168 		     q->subsystem_device == PCI_ANY_ID))
169 			q->hook(i915);
170 	}
171 	for (i = 0; i < ARRAY_SIZE(intel_dmi_quirks); i++) {
172 		if (dmi_check_system(*intel_dmi_quirks[i].dmi_id_list) != 0)
173 			intel_dmi_quirks[i].hook(i915);
174 	}
175 }
176