write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/drivers/platform/x86/dell-laptop.c
..
..
@@ -1,16 +1,13 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
1
2
 /*
2
3
  *  Driver for Dell laptop extras
3
4
  *
4
5
  *  Copyright (c) Red Hat <mjg@redhat.com>
5
6
  *  Copyright (c) 2014 Gabriele Mazzotta <gabriele.mzt@gmail.com>
6
- *  Copyright (c) 2014 Pali Rohár <pali.rohar@gmail.com>
7
+ *  Copyright (c) 2014 Pali Rohár <pali@kernel.org>
7
8
  *
8
9
  *  Based on documentation in the libsmbios package:
9
10
  *  Copyright (C) 2005-2014 Dell Inc.
10
- *
11
- *  This program is free software; you can redistribute it and/or modify
12
- *  it under the terms of the GNU General Public License version 2 as
13
- *  published by the Free Software Foundation.
14
11
  */
15
12
 
16
13
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
..
..
@@ -29,7 +26,6 @@
29
26
 #include <linux/mm.h>
30
27
 #include <linux/i8042.h>
31
28
 #include <linux/debugfs.h>
32
-#include <linux/dell-led.h>
33
29
 #include <linux/seq_file.h>
34
30
 #include <acpi/video.h>
35
31
 #include "dell-rbtn.h"
..
..
@@ -1591,8 +1587,10 @@
1591
1587
 		switch (unit) {
1592
1588
 		case KBD_TIMEOUT_DAYS:
1593
1589
 			value *= 24;
1590
+			fallthrough;
1594
1591
 		case KBD_TIMEOUT_HOURS:
1595
1592
 			value *= 60;
1593
+			fallthrough;
1596
1594
 		case KBD_TIMEOUT_MINUTES:
1597
1595
 			value *= 60;
1598
1596
 			unit = KBD_TIMEOUT_SECONDS;
..
..
@@ -2135,17 +2133,17 @@
2135
2133
 	.notifier_call = dell_laptop_notifier_call,
2136
2134
 };
2137
2135
 
2138
-int dell_micmute_led_set(int state)
2136
+static int micmute_led_set(struct led_classdev *led_cdev,
2137
+			   enum led_brightness brightness)
2139
2138
 {
2140
2139
 	struct calling_interface_buffer buffer;
2141
2140
 	struct calling_interface_token *token;
2141
+	int state = brightness != LED_OFF;
2142
2142
 
2143
2143
 	if (state == 0)
2144
2144
 		token = dell_smbios_find_token(GLOBAL_MIC_MUTE_DISABLE);
2145
-	else if (state == 1)
2146
-		token = dell_smbios_find_token(GLOBAL_MIC_MUTE_ENABLE);
2147
2145
 	else
2148
-		return -EINVAL;
2146
+		token = dell_smbios_find_token(GLOBAL_MIC_MUTE_ENABLE);
2149
2147
 
2150
2148
 	if (!token)
2151
2149
 		return -ENODEV;
..
..
@@ -2153,9 +2151,15 @@
2153
2151
 	dell_fill_request(&buffer, token->location, token->value, 0, 0);
2154
2152
 	dell_send_request(&buffer, CLASS_TOKEN_WRITE, SELECT_TOKEN_STD);
2155
2153
 
2156
-	return state;
2154
+	return 0;
2157
2155
 }
2158
-EXPORT_SYMBOL_GPL(dell_micmute_led_set);
2156
+
2157
+static struct led_classdev micmute_led_cdev = {
2158
+	.name = "platform::micmute",
2159
+	.max_brightness = 1,
2160
+	.brightness_set_blocking = micmute_led_set,
2161
+	.default_trigger = "audio-micmute",
2162
+};
2159
2163
 
2160
2164
 static int __init dell_init(void)
2161
2165
 {
..
..
@@ -2195,11 +2199,18 @@
2195
2199
 	kbd_led_init(&platform_device->dev);
2196
2200
 
2197
2201
 	dell_laptop_dir = debugfs_create_dir("dell_laptop", NULL);
2198
-	if (dell_laptop_dir != NULL)
2199
-		debugfs_create_file("rfkill", 0444, dell_laptop_dir, NULL,
2200
-				    &dell_debugfs_fops);
2202
+	debugfs_create_file("rfkill", 0444, dell_laptop_dir, NULL,
2203
+			    &dell_debugfs_fops);
2201
2204
 
2202
2205
 	dell_laptop_register_notifier(&dell_laptop_notifier);
2206
+
2207
+	if (dell_smbios_find_token(GLOBAL_MIC_MUTE_DISABLE) &&
2208
+	    dell_smbios_find_token(GLOBAL_MIC_MUTE_ENABLE)) {
2209
+		micmute_led_cdev.brightness = ledtrig_audio_get(LED_AUDIO_MICMUTE);
2210
+		ret = led_classdev_register(&platform_device->dev, &micmute_led_cdev);
2211
+		if (ret < 0)
2212
+			goto fail_led;
2213
+	}
2203
2214
 
2204
2215
 	if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2205
2216
 		return 0;
..
..
@@ -2246,6 +2257,8 @@
2246
2257
 fail_get_brightness:
2247
2258
 	backlight_device_unregister(dell_backlight_device);
2248
2259
 fail_backlight:
2260
+	led_classdev_unregister(&micmute_led_cdev);
2261
+fail_led:
2249
2262
 	dell_cleanup_rfkill();
2250
2263
 fail_rfkill:
2251
2264
 	platform_device_del(platform_device);
..
..
@@ -2265,6 +2278,7 @@
2265
2278
 		touchpad_led_exit();
2266
2279
 	kbd_led_exit();
2267
2280
 	backlight_device_unregister(dell_backlight_device);
2281
+	led_classdev_unregister(&micmute_led_cdev);
2268
2282
 	dell_cleanup_rfkill();
2269
2283
 	if (platform_device) {
2270
2284
 		platform_device_unregister(platform_device);
..
..
@@ -2284,6 +2298,6 @@
2284
2298
 
2285
2299
 MODULE_AUTHOR("Matthew Garrett <mjg@redhat.com>");
2286
2300
 MODULE_AUTHOR("Gabriele Mazzotta <gabriele.mzt@gmail.com>");
2287
-MODULE_AUTHOR("Pali Rohár <pali.rohar@gmail.com>");
2301
+MODULE_AUTHOR("Pali Rohár <pali@kernel.org>");
2288
2302
 MODULE_DESCRIPTION("Dell laptop driver");
2289
2303
 MODULE_LICENSE("GPL");