add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/drivers/acpi/button.c
..
..
@@ -1,22 +1,9 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
1
2
 /*
2
3
  *  button.c - ACPI Button Driver
3
4
  *
4
5
  *  Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
5
6
  *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
6
- *
7
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8
- *
9
- *  This program is free software; you can redistribute it and/or modify
10
- *  it under the terms of the GNU General Public License as published by
11
- *  the Free Software Foundation; either version 2 of the License, or (at
12
- *  your option) any later version.
13
- *
14
- *  This program is distributed in the hope that it will be useful, but
15
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
16
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17
- *  General Public License for more details.
18
- *
19
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
20
7
  */
21
8
 
22
9
 #define pr_fmt(fmt) "ACPI: button: " fmt
..
..
@@ -37,29 +24,35 @@
37
24
 #define PREFIX "ACPI: "
38
25
 
39
26
 #define ACPI_BUTTON_CLASS		"button"
40
-#define ACPI_BUTTON_FILE_INFO		"info"
41
27
 #define ACPI_BUTTON_FILE_STATE		"state"
42
28
 #define ACPI_BUTTON_TYPE_UNKNOWN	0x00
43
29
 #define ACPI_BUTTON_NOTIFY_STATUS	0x80
44
30
 
45
31
 #define ACPI_BUTTON_SUBCLASS_POWER	"power"
46
-#define ACPI_BUTTON_HID_POWER		"PNP0C0C"
47
32
 #define ACPI_BUTTON_DEVICE_NAME_POWER	"Power Button"
48
33
 #define ACPI_BUTTON_TYPE_POWER		0x01
49
34
 
50
35
 #define ACPI_BUTTON_SUBCLASS_SLEEP	"sleep"
51
-#define ACPI_BUTTON_HID_SLEEP		"PNP0C0E"
52
36
 #define ACPI_BUTTON_DEVICE_NAME_SLEEP	"Sleep Button"
53
37
 #define ACPI_BUTTON_TYPE_SLEEP		0x03
54
38
 
55
39
 #define ACPI_BUTTON_SUBCLASS_LID	"lid"
56
-#define ACPI_BUTTON_HID_LID		"PNP0C0D"
57
40
 #define ACPI_BUTTON_DEVICE_NAME_LID	"Lid Switch"
58
41
 #define ACPI_BUTTON_TYPE_LID		0x05
59
42
 
60
-#define ACPI_BUTTON_LID_INIT_IGNORE	0x00
61
-#define ACPI_BUTTON_LID_INIT_OPEN	0x01
62
-#define ACPI_BUTTON_LID_INIT_METHOD	0x02
43
+enum {
44
+	ACPI_BUTTON_LID_INIT_IGNORE,
45
+	ACPI_BUTTON_LID_INIT_OPEN,
46
+	ACPI_BUTTON_LID_INIT_METHOD,
47
+	ACPI_BUTTON_LID_INIT_DISABLED,
48
+};
49
+
50
+static const char * const lid_init_state_str[] = {
51
+	[ACPI_BUTTON_LID_INIT_IGNORE]		= "ignore",
52
+	[ACPI_BUTTON_LID_INIT_OPEN]		= "open",
53
+	[ACPI_BUTTON_LID_INIT_METHOD]		= "method",
54
+	[ACPI_BUTTON_LID_INIT_DISABLED]		= "disabled",
55
+};
63
56
 
64
57
 #define _COMPONENT		ACPI_BUTTON_COMPONENT
65
58
 ACPI_MODULE_NAME("button");
..
..
@@ -78,18 +71,16 @@
78
71
 };
79
72
 MODULE_DEVICE_TABLE(acpi, button_device_ids);
80
73
 
81
-/*
82
- * Some devices which don't even have a lid in anyway have a broken _LID
83
- * method (e.g. pointing to a floating gpio pin) causing spurious LID events.
84
- */
85
-static const struct dmi_system_id lid_blacklst[] = {
74
+/* Please keep this list sorted alphabetically by vendor and model */
75
+static const struct dmi_system_id dmi_lid_quirks[] = {
86
76
 	{
87
-		/* GP-electronic T701 */
77
+		/* GP-electronic T701, _LID method points to a floating GPIO */
88
78
 		.matches = {
89
79
 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
90
80
 			DMI_MATCH(DMI_PRODUCT_NAME, "T701"),
91
81
 			DMI_MATCH(DMI_BIOS_VERSION, "BYT70A.YNCHENG.WIN.007"),
92
82
 		},
83
+		.driver_data = (void *)(long)ACPI_BUTTON_LID_INIT_DISABLED,
93
84
 	},
94
85
 	{
95
86
 		/*
..
..
@@ -163,9 +154,8 @@
163
154
 	bool lid_state_initialized;
164
155
 };
165
156
 
166
-static BLOCKING_NOTIFIER_HEAD(acpi_lid_notifier);
167
157
 static struct acpi_device *lid_device;
168
-static u8 lid_init_state = ACPI_BUTTON_LID_INIT_METHOD;
158
+static long lid_init_state = -1;
169
159
 
170
160
 static unsigned long lid_report_interval __read_mostly = 500;
171
161
 module_param(lid_report_interval, ulong, 0644);
..
..
@@ -193,7 +183,6 @@
193
183
 static int acpi_lid_notify_state(struct acpi_device *device, int state)
194
184
 {
195
185
 	struct acpi_button *button = acpi_driver_data(device);
196
-	int ret;
197
186
 	ktime_t next_report;
198
187
 	bool do_update;
199
188
 
..
..
@@ -270,18 +259,7 @@
270
259
 		button->last_time = ktime_get();
271
260
 	}
272
261
 
273
-	ret = blocking_notifier_call_chain(&acpi_lid_notifier, state, device);
274
-	if (ret == NOTIFY_DONE)
275
-		ret = blocking_notifier_call_chain(&acpi_lid_notifier, state,
276
-						   device);
277
-	if (ret == NOTIFY_DONE || ret == NOTIFY_OK) {
278
-		/*
279
-		 * It is also regarded as success if the notifier_chain
280
-		 * returns NOTIFY_OK or NOTIFY_DONE.
281
-		 */
282
-		ret = 0;
283
-	}
284
-	return ret;
262
+	return 0;
285
263
 }
286
264
 
287
265
 static int __maybe_unused acpi_button_state_seq_show(struct seq_file *seq,
..
..
@@ -378,18 +356,6 @@
378
356
 /* --------------------------------------------------------------------------
379
357
                                 Driver Interface
380
358
    -------------------------------------------------------------------------- */
381
-int acpi_lid_notifier_register(struct notifier_block *nb)
382
-{
383
-	return blocking_notifier_chain_register(&acpi_lid_notifier, nb);
384
-}
385
-EXPORT_SYMBOL(acpi_lid_notifier_register);
386
-
387
-int acpi_lid_notifier_unregister(struct notifier_block *nb)
388
-{
389
-	return blocking_notifier_chain_unregister(&acpi_lid_notifier, nb);
390
-}
391
-EXPORT_SYMBOL(acpi_lid_notifier_unregister);
392
-
393
359
 int acpi_lid_open(void)
394
360
 {
395
361
 	if (!lid_device)
..
..
@@ -441,7 +407,7 @@
441
407
 	switch (event) {
442
408
 	case ACPI_FIXED_HARDWARE_EVENT:
443
409
 		event = ACPI_BUTTON_NOTIFY_STATUS;
444
-		/* fall through */
410
+		fallthrough;
445
411
 	case ACPI_BUTTON_NOTIFY_STATUS:
446
412
 		input = button->input;
447
413
 		if (button->type == ACPI_BUTTON_TYPE_LID) {
..
..
@@ -519,7 +485,8 @@
519
485
 	char *name, *class;
520
486
 	int error;
521
487
 
522
-	if (!strcmp(hid, ACPI_BUTTON_HID_LID) && dmi_check_system(lid_blacklst))
488
+	if (!strcmp(hid, ACPI_BUTTON_HID_LID) &&
489
+	     lid_init_state == ACPI_BUTTON_LID_INIT_DISABLED)
523
490
 		return -ENODEV;
524
491
 
525
492
 	button = kzalloc(sizeof(struct acpi_button), GFP_KERNEL);
..
..
@@ -625,36 +592,30 @@
625
592
 static int param_set_lid_init_state(const char *val,
626
593
 				    const struct kernel_param *kp)
627
594
 {
628
-	int result = 0;
595
+	int i;
629
596
 
630
-	if (!strncmp(val, "open", sizeof("open") - 1)) {
631
-		lid_init_state = ACPI_BUTTON_LID_INIT_OPEN;
632
-		pr_info("Notify initial lid state as open\n");
633
-	} else if (!strncmp(val, "method", sizeof("method") - 1)) {
634
-		lid_init_state = ACPI_BUTTON_LID_INIT_METHOD;
635
-		pr_info("Notify initial lid state with _LID return value\n");
636
-	} else if (!strncmp(val, "ignore", sizeof("ignore") - 1)) {
637
-		lid_init_state = ACPI_BUTTON_LID_INIT_IGNORE;
638
-		pr_info("Do not notify initial lid state\n");
639
-	} else
640
-		result = -EINVAL;
641
-	return result;
597
+	i = sysfs_match_string(lid_init_state_str, val);
598
+	if (i < 0)
599
+		return i;
600
+
601
+	lid_init_state = i;
602
+	pr_info("Initial lid state set to '%s'\n", lid_init_state_str[i]);
603
+	return 0;
642
604
 }
643
605
 
644
-static int param_get_lid_init_state(char *buffer,
645
-				    const struct kernel_param *kp)
606
+static int param_get_lid_init_state(char *buf, const struct kernel_param *kp)
646
607
 {
647
-	switch (lid_init_state) {
648
-	case ACPI_BUTTON_LID_INIT_OPEN:
649
-		return sprintf(buffer, "open");
650
-	case ACPI_BUTTON_LID_INIT_METHOD:
651
-		return sprintf(buffer, "method");
652
-	case ACPI_BUTTON_LID_INIT_IGNORE:
653
-		return sprintf(buffer, "ignore");
654
-	default:
655
-		return sprintf(buffer, "invalid");
656
-	}
657
-	return 0;
608
+	int i, c = 0;
609
+
610
+	for (i = 0; i < ARRAY_SIZE(lid_init_state_str); i++)
611
+		if (i == lid_init_state)
612
+			c += sprintf(buf + c, "[%s] ", lid_init_state_str[i]);
613
+		else
614
+			c += sprintf(buf + c, "%s ", lid_init_state_str[i]);
615
+
616
+	buf[c - 1] = '\n'; /* Replace the final space with a newline */
617
+
618
+	return c;
658
619
 }
659
620
 
660
621
 module_param_call(lid_init_state,
..
..
@@ -664,6 +625,16 @@
664
625
 
665
626
 static int acpi_button_register_driver(struct acpi_driver *driver)
666
627
 {
628
+	const struct dmi_system_id *dmi_id;
629
+
630
+	if (lid_init_state == -1) {
631
+		dmi_id = dmi_first_match(dmi_lid_quirks);
632
+		if (dmi_id)
633
+			lid_init_state = (long)dmi_id->driver_data;
634
+		else
635
+			lid_init_state = ACPI_BUTTON_LID_INIT_METHOD;
636
+	}
637
+
667
638
 	/*
668
639
 	 * Modules such as nouveau.ko and i915.ko have a link time dependency
669
640
 	 * on acpi_lid_open(), and would therefore not be loadable on ACPI