add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/mfd/wm831x-core.c
..
..
@@ -1,19 +1,15 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
1
2
 /*
2
3
  * wm831x-core.c  --  Device access for Wolfson WM831x PMICs
3
4
  *
4
5
  * Copyright 2009 Wolfson Microelectronics PLC.
5
6
  *
6
7
  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
7
- *
8
- *  This program is free software; you can redistribute  it and/or modify it
9
- *  under  the terms of  the GNU General  Public License as published by the
10
- *  Free Software Foundation;  either version 2 of the  License, or (at your
11
- *  option) any later version.
12
- *
13
8
  */
14
9
 
15
10
 #include <linux/kernel.h>
16
-#include <linux/module.h>
11
+#include <linux/init.h>
12
+#include <linux/export.h>
17
13
 #include <linux/bcd.h>
18
14
 #include <linux/delay.h>
19
15
 #include <linux/mfd/core.h>
..
..
@@ -33,7 +29,7 @@
33
29
 /* Current settings - values are 2*2^(reg_val/4) microamps.  These are
34
30
  * exported since they are used by multiple drivers.
35
31
  */
36
-int wm831x_isinkv_values[WM831X_ISINK_MAX_ISEL + 1] = {
32
+const unsigned int wm831x_isinkv_values[WM831X_ISINK_MAX_ISEL + 1] = {
37
33
 	2,
38
34
 	2,
39
35
 	3,
..
..
@@ -118,6 +114,8 @@
118
114
  * The WM831x has a user key preventing writes to particularly
119
115
  * critical registers.  This function locks those registers,
120
116
  * allowing writes to them.
117
+ *
118
+ * @wm831x: pointer to local driver data structure
121
119
  */
122
120
 void wm831x_reg_lock(struct wm831x *wm831x)
123
121
 {
..
..
@@ -144,6 +142,8 @@
144
142
  * The WM831x has a user key preventing writes to particularly
145
143
  * critical registers.  This function locks those registers,
146
144
  * preventing spurious writes.
145
+ *
146
+ * @wm831x: pointer to local driver data structure
147
147
  */
148
148
 int wm831x_reg_unlock(struct wm831x *wm831x)
149
149
 {
..
..
@@ -1892,14 +1892,6 @@
1892
1892
 	return ret;
1893
1893
 }
1894
1894
 
1895
-void wm831x_device_exit(struct wm831x *wm831x)
1896
-{
1897
-	wm831x_otp_exit(wm831x);
1898
-	mfd_remove_devices(wm831x->dev);
1899
-	free_irq(wm831x_irq(wm831x, WM831X_IRQ_AUXADC_DATA), wm831x);
1900
-	wm831x_irq_exit(wm831x);
1901
-}
1902
-
1903
1895
 int wm831x_device_suspend(struct wm831x *wm831x)
1904
1896
 {
1905
1897
 	int reg, mask;
..
..
@@ -1944,7 +1936,3 @@
1944
1936
 	}
1945
1937
 }
1946
1938
 EXPORT_SYMBOL_GPL(wm831x_device_shutdown);
1947
-
1948
-MODULE_DESCRIPTION("Core support for the WM831X AudioPlus PMIC");
1949
-MODULE_LICENSE("GPL");
1950
-MODULE_AUTHOR("Mark Brown");