rtc-ds1685.c (52ef84d566dc145b4d469f06667c5fa3118fdd44) rtc-ds1685.c (a737e835e5769ef22897179ed7f82b1fc50bfa58)
1/*
2 * An rtc driver for the Dallas/Maxim DS1685/DS1687 and related real-time
3 * chips.
4 *
5 * Copyright (C) 2011-2014 Joshua Kinard <kumba@gentoo.org>.
6 * Copyright (C) 2009 Matthias Fuchs <matthias.fuchs@esd-electronics.com>.
7 *
8 * References:
9 * DS1685/DS1687 3V/5V Real-Time Clocks, 19-5215, Rev 4/10.
10 * DS17x85/DS17x87 3V/5V Real-Time Clocks, 19-5222, Rev 4/10.
11 * DS1689/DS1693 3V/5V Serialized Real-Time Clocks, Rev 112105.
12 * Application Note 90, Using the Multiplex Bus RTC Extended Features.
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License version 2 as
16 * published by the Free Software Foundation.
17 */
18
1/*
2 * An rtc driver for the Dallas/Maxim DS1685/DS1687 and related real-time
3 * chips.
4 *
5 * Copyright (C) 2011-2014 Joshua Kinard <kumba@gentoo.org>.
6 * Copyright (C) 2009 Matthias Fuchs <matthias.fuchs@esd-electronics.com>.
7 *
8 * References:
9 * DS1685/DS1687 3V/5V Real-Time Clocks, 19-5215, Rev 4/10.
10 * DS17x85/DS17x87 3V/5V Real-Time Clocks, 19-5222, Rev 4/10.
11 * DS1689/DS1693 3V/5V Serialized Real-Time Clocks, Rev 112105.
12 * Application Note 90, Using the Multiplex Bus RTC Extended Features.
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License version 2 as
16 * published by the Free Software Foundation.
17 */
18
19#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
20
19#include <linux/bcd.h>
20#include <linux/delay.h>
21#include <linux/io.h>
22#include <linux/module.h>
23#include <linux/platform_device.h>
24#include <linux/rtc.h>
25#include <linux/workqueue.h>
26

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2177void __noreturn
2178ds1685_rtc_poweroff(struct platform_device *pdev)
2179{
2180 u8 ctrla, ctrl4a, ctrl4b;
2181 struct ds1685_priv *rtc;
2182
2183 /* Check for valid RTC data, else, spin forever. */
2184 if (unlikely(!pdev)) {
21#include <linux/bcd.h>
22#include <linux/delay.h>
23#include <linux/io.h>
24#include <linux/module.h>
25#include <linux/platform_device.h>
26#include <linux/rtc.h>
27#include <linux/workqueue.h>
28

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2179void __noreturn
2180ds1685_rtc_poweroff(struct platform_device *pdev)
2181{
2182 u8 ctrla, ctrl4a, ctrl4b;
2183 struct ds1685_priv *rtc;
2184
2185 /* Check for valid RTC data, else, spin forever. */
2186 if (unlikely(!pdev)) {
2185 pr_emerg("rtc-ds1685: platform device data not available, spinning forever ...\n");
2187 pr_emerg("platform device data not available, spinning forever ...\n");
2186 unreachable();
2187 } else {
2188 /* Get the rtc data. */
2189 rtc = platform_get_drvdata(pdev);
2190
2191 /*
2192 * Disable our IRQ. We're powering down, so we're not
2193 * going to worry about cleaning up. Most of that should

--- 56 unchanged lines hidden --- 		2188 unreachable();
2189 } else {
2190 /* Get the rtc data. */
2191 rtc = platform_get_drvdata(pdev);
2192
2193 /*
2194 * Disable our IRQ. We're powering down, so we're not
2195 * going to worry about cleaning up. Most of that should

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