Commit e7a8bb12 authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds
Browse files

[PATCH] at91rm9200-rtc-driver-tidy



- whitespace fixes (80-col display)

- one unneeded cast of void*

Cc: Andrew Victor <andrew@sanpeople.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 788b1fc6
......@@ -40,11 +40,11 @@
static DECLARE_COMPLETION(at91_rtc_updated);
static unsigned int at91_alarm_year = AT91_RTC_EPOCH;
/*
* Decode time/date into rtc_time structure
*/
static void at91_rtc_decodetime(unsigned int timereg, unsigned int calreg, struct rtc_time *tm)
static void at91_rtc_decodetime(unsigned int timereg, unsigned int calreg,
struct rtc_time *tm)
{
unsigned int time, date;
......@@ -52,7 +52,8 @@ static void at91_rtc_decodetime(unsigned int timereg, unsigned int calreg, struc
do {
time = at91_sys_read(timereg);
date = at91_sys_read(calreg);
} while ((time != at91_sys_read(timereg)) || (date != at91_sys_read(calreg)));
} while ((time != at91_sys_read(timereg)) ||
(date != at91_sys_read(calreg)));
tm->tm_sec = BCD2BIN((time & AT91_RTC_SEC) >> 0);
tm->tm_min = BCD2BIN((time & AT91_RTC_MIN) >> 8);
......@@ -63,8 +64,8 @@ static void at91_rtc_decodetime(unsigned int timereg, unsigned int calreg, struc
* the year - so these will return an invalid value. When an
* alarm is set, at91_alarm_year wille store the current year.
*/
tm->tm_year = BCD2BIN(date & AT91_RTC_CENT) * 100; /* century */
tm->tm_year += BCD2BIN((date & AT91_RTC_YEAR) >> 8); /* year */
tm->tm_year = BCD2BIN(date & AT91_RTC_CENT) * 100; /* century */
tm->tm_year += BCD2BIN((date & AT91_RTC_YEAR) >> 8); /* year */
tm->tm_wday = BCD2BIN((date & AT91_RTC_DAY) >> 21) - 1; /* day of the week [0-6], Sunday=0 */
tm->tm_mon = BCD2BIN((date & AT91_RTC_MONTH) >> 16) - 1;
......@@ -81,7 +82,8 @@ static int at91_rtc_readtime(struct device *dev, struct rtc_time *tm)
tm->tm_year = tm->tm_year - 1900;
pr_debug("%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __FUNCTION__,
1900 + tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
1900 + tm->tm_year, tm->tm_mon, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
return 0;
}
......@@ -94,14 +96,15 @@ static int at91_rtc_settime(struct device *dev, struct rtc_time *tm)
unsigned long cr;
pr_debug("%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __FUNCTION__,
1900 + tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
1900 + tm->tm_year, tm->tm_mon, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
/* Stop Time/Calendar from counting */
cr = at91_sys_read(AT91_RTC_CR);
at91_sys_write(AT91_RTC_CR, cr | AT91_RTC_UPDCAL | AT91_RTC_UPDTIM);
at91_sys_write(AT91_RTC_IER, AT91_RTC_ACKUPD);
wait_for_completion(&at91_rtc_updated); /* wait for ACKUPD interrupt */
wait_for_completion(&at91_rtc_updated); /* wait for ACKUPD interrupt */
at91_sys_write(AT91_RTC_IDR, AT91_RTC_ACKUPD);
at91_sys_write(AT91_RTC_TIMR,
......@@ -110,10 +113,10 @@ static int at91_rtc_settime(struct device *dev, struct rtc_time *tm)
| BIN2BCD(tm->tm_hour) << 16);
at91_sys_write(AT91_RTC_CALR,
BIN2BCD((tm->tm_year + 1900) / 100) /* century */
| BIN2BCD(tm->tm_year % 100) << 8 /* year */
| BIN2BCD(tm->tm_mon + 1) << 16 /* tm_mon starts at zero */
| BIN2BCD(tm->tm_wday + 1) << 21 /* day of the week [0-6], Sunday=0 */
BIN2BCD((tm->tm_year + 1900) / 100) /* century */
| BIN2BCD(tm->tm_year % 100) << 8 /* year */
| BIN2BCD(tm->tm_mon + 1) << 16 /* tm_mon starts at zero */
| BIN2BCD(tm->tm_wday + 1) << 21 /* day of the week [0-6], Sunday=0 */
| BIN2BCD(tm->tm_mday) << 24);
/* Restart Time/Calendar */
......@@ -135,7 +138,8 @@ static int at91_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
tm->tm_year = at91_alarm_year - 1900;
pr_debug("%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __FUNCTION__,
1900 + tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
1900 + tm->tm_year, tm->tm_mon, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
return 0;
}
......@@ -166,7 +170,8 @@ static int at91_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
| AT91_RTC_DATEEN | AT91_RTC_MTHEN);
pr_debug("%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __FUNCTION__,
at91_alarm_year, tm.tm_mon, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
at91_alarm_year, tm.tm_mon, tm.tm_mday, tm.tm_hour,
tm.tm_min, tm.tm_sec);
return 0;
}
......@@ -174,7 +179,8 @@ static int at91_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
/*
* Handle commands from user-space
*/
static int at91_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
static int at91_rtc_ioctl(struct device *dev, unsigned int cmd,
unsigned long arg)
{
int ret = 0;
......@@ -217,10 +223,14 @@ static int at91_rtc_proc(struct device *dev, struct seq_file *seq)
{
unsigned long imr = at91_sys_read(AT91_RTC_IMR);
seq_printf(seq, "alarm_IRQ\t: %s\n", (imr & AT91_RTC_ALARM) ? "yes" : "no");
seq_printf(seq, "update_IRQ\t: %s\n", (imr & AT91_RTC_ACKUPD) ? "yes" : "no");
seq_printf(seq, "periodic_IRQ\t: %s\n", (imr & AT91_RTC_SECEV) ? "yes" : "no");
seq_printf(seq, "periodic_freq\t: %ld\n", (unsigned long) AT91_RTC_FREQ);
seq_printf(seq, "alarm_IRQ\t: %s\n",
(imr & AT91_RTC_ALARM) ? "yes" : "no");
seq_printf(seq, "update_IRQ\t: %s\n",
(imr & AT91_RTC_ACKUPD) ? "yes" : "no");
seq_printf(seq, "periodic_IRQ\t: %s\n",
(imr & AT91_RTC_SECEV) ? "yes" : "no");
seq_printf(seq, "periodic_freq\t: %ld\n",
(unsigned long) AT91_RTC_FREQ);
return 0;
}
......@@ -228,9 +238,10 @@ static int at91_rtc_proc(struct device *dev, struct seq_file *seq)
/*
* IRQ handler for the RTC
*/
static irqreturn_t at91_rtc_interrupt(int irq, void *dev_id, struct pt_regs *regs)
static irqreturn_t at91_rtc_interrupt(int irq, void *dev_id,
struct pt_regs *regs)
{
struct platform_device *pdev = (struct platform_device *)dev_id;
struct platform_device *pdev = dev_id;
struct rtc_device *rtc = platform_get_drvdata(pdev);
unsigned int rtsr;
unsigned long events = 0;
......@@ -244,7 +255,7 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *dev_id, struct pt_regs *reg
if (rtsr & AT91_RTC_ACKUPD)
complete(&at91_rtc_updated);
at91_sys_write(AT91_RTC_SCCR, rtsr); /* clear status reg */
at91_sys_write(AT91_RTC_SCCR, rtsr); /* clear status reg */
rtc_update_irq(&rtc->class_dev, 1, events);
......@@ -277,15 +288,20 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
at91_sys_write(AT91_RTC_MR, 0); /* 24 hour mode */
/* Disable all interrupts */
at91_sys_write(AT91_RTC_IDR, AT91_RTC_ACKUPD | AT91_RTC_ALARM | AT91_RTC_SECEV | AT91_RTC_TIMEV | AT91_RTC_CALEV);
at91_sys_write(AT91_RTC_IDR, AT91_RTC_ACKUPD | AT91_RTC_ALARM |
AT91_RTC_SECEV | AT91_RTC_TIMEV |
AT91_RTC_CALEV);
ret = request_irq(AT91_ID_SYS, at91_rtc_interrupt, SA_SHIRQ, "at91_rtc", pdev);
ret = request_irq(AT91_ID_SYS, at91_rtc_interrupt,
SA_SHIRQ, "at91_rtc", pdev);
if (ret) {
printk(KERN_ERR "at91_rtc: IRQ %d already in use.\n", AT91_ID_SYS);
printk(KERN_ERR "at91_rtc: IRQ %d already in use.\n",
AT91_ID_SYS);
return ret;
}
rtc = rtc_device_register(pdev->name, &pdev->dev, &at91_rtc_ops, THIS_MODULE);
rtc = rtc_device_register(pdev->name, &pdev->dev,
&at91_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc)) {
free_irq(AT91_ID_SYS, pdev);
return PTR_ERR(rtc);
......@@ -304,7 +320,9 @@ static int __devexit at91_rtc_remove(struct platform_device *pdev)
struct rtc_device *rtc = platform_get_drvdata(pdev);
/* Disable all interrupts */
at91_sys_write(AT91_RTC_IDR, AT91_RTC_ACKUPD | AT91_RTC_ALARM | AT91_RTC_SECEV | AT91_RTC_TIMEV | AT91_RTC_CALEV);
at91_sys_write(AT91_RTC_IDR, AT91_RTC_ACKUPD | AT91_RTC_ALARM |
AT91_RTC_SECEV | AT91_RTC_TIMEV |
AT91_RTC_CALEV);
free_irq(AT91_ID_SYS, pdev);
rtc_device_unregister(rtc);
......@@ -332,7 +350,8 @@ static int at91_rtc_suspend(struct platform_device *pdev, pm_message_t state)
save_time_delta(&at91_rtc_delta, &time);
pr_debug("%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __FUNCTION__,
1900 + tm.tm_year, tm.tm_mon, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
1900 + tm.tm_year, tm.tm_mon, tm.tm_mday,
tm.tm_hour, tm.tm_min, tm.tm_sec);
return 0;
}
......@@ -349,7 +368,8 @@ static int at91_rtc_resume(struct platform_device *pdev)
restore_time_delta(&at91_rtc_delta, &time);
pr_debug("%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __FUNCTION__,
1900 + tm.tm_year, tm.tm_mon, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
1900 + tm.tm_year, tm.tm_mon, tm.tm_mday,
tm.tm_hour, tm.tm_min, tm.tm_sec);
return 0;
}
......@@ -379,7 +399,6 @@ static void __exit at91_rtc_exit(void)
platform_driver_unregister(&at91_rtc_driver);
}
module_init(at91_rtc_init);
module_exit(at91_rtc_exit);
......
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