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[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: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andrew Morton 2006-06-25 05:48:27 -07:00 committed by Linus Torvalds
parent 788b1fc619
commit e7a8bb12c2
1 changed files with 49 additions and 30 deletions
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79
drivers/rtc/rtc-at91.c
View File

@ -40,11 +40,11 @@
static DECLARE_COMPLETION(at91_rtc_updated); static DECLARE_COMPLETION(at91_rtc_updated);
static unsigned int at91_alarm_year = AT91_RTC_EPOCH; static unsigned int at91_alarm_year = AT91_RTC_EPOCH;
/* /*
* Decode time/date into rtc_time structure * 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; unsigned int time, date;
@ -52,7 +52,8 @@ static void at91_rtc_decodetime(unsigned int timereg, unsigned int calreg, struc
do { do {
time = at91_sys_read(timereg); time = at91_sys_read(timereg);
date = at91_sys_read(calreg); 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_sec = BCD2BIN((time & AT91_RTC_SEC) >> 0);
tm->tm_min = BCD2BIN((time & AT91_RTC_MIN) >> 8); 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 * the year - so these will return an invalid value. When an
* alarm is set, at91_alarm_year wille store the current year. * 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_CENT) * 100; /* century */
tm->tm_year += BCD2BIN((date & AT91_RTC_YEAR) >> 8); /* year */ 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_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; 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; tm->tm_year = tm->tm_year - 1900;
pr_debug("%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __FUNCTION__, 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; return 0;
} }
@ -94,14 +96,15 @@ static int at91_rtc_settime(struct device *dev, struct rtc_time *tm)
unsigned long cr; unsigned long cr;
pr_debug("%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __FUNCTION__, 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 */ /* Stop Time/Calendar from counting */
cr = at91_sys_read(AT91_RTC_CR); 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_CR, cr | AT91_RTC_UPDCAL | AT91_RTC_UPDTIM);
at91_sys_write(AT91_RTC_IER, AT91_RTC_ACKUPD); 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_IDR, AT91_RTC_ACKUPD);
at91_sys_write(AT91_RTC_TIMR, 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); | BIN2BCD(tm->tm_hour) << 16);
at91_sys_write(AT91_RTC_CALR, at91_sys_write(AT91_RTC_CALR,
BIN2BCD((tm->tm_year + 1900) / 100) /* century */ BIN2BCD((tm->tm_year + 1900) / 100) /* century */
| BIN2BCD(tm->tm_year % 100) << 8 /* year */ | BIN2BCD(tm->tm_year % 100) << 8 /* year */
| BIN2BCD(tm->tm_mon + 1) << 16 /* tm_mon starts at zero */ | 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_wday + 1) << 21 /* day of the week [0-6], Sunday=0 */
| BIN2BCD(tm->tm_mday) << 24); | BIN2BCD(tm->tm_mday) << 24);
/* Restart Time/Calendar */ /* 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; tm->tm_year = at91_alarm_year - 1900;
pr_debug("%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __FUNCTION__, 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; return 0;
} }
@ -166,7 +170,8 @@ static int at91_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
| AT91_RTC_DATEEN | AT91_RTC_MTHEN); | AT91_RTC_DATEEN | AT91_RTC_MTHEN);
pr_debug("%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __FUNCTION__, 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; return 0;
} }
@ -174,7 +179,8 @@ static int at91_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
/* /*
* Handle commands from user-space * 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; 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); 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, "alarm_IRQ\t: %s\n",
seq_printf(seq, "update_IRQ\t: %s\n", (imr & AT91_RTC_ACKUPD) ? "yes" : "no"); (imr & AT91_RTC_ALARM) ? "yes" : "no");
seq_printf(seq, "periodic_IRQ\t: %s\n", (imr & AT91_RTC_SECEV) ? "yes" : "no"); seq_printf(seq, "update_IRQ\t: %s\n",
seq_printf(seq, "periodic_freq\t: %ld\n", (unsigned long) AT91_RTC_FREQ); (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; return 0;
} }
@ -228,9 +238,10 @@ static int at91_rtc_proc(struct device *dev, struct seq_file *seq)
/* /*
* IRQ handler for the RTC * 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); struct rtc_device *rtc = platform_get_drvdata(pdev);
unsigned int rtsr; unsigned int rtsr;
unsigned long events = 0; 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) if (rtsr & AT91_RTC_ACKUPD)
complete(&at91_rtc_updated); 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); 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 */ at91_sys_write(AT91_RTC_MR, 0); /* 24 hour mode */
/* Disable all interrupts */ /* 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) { 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; 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)) { if (IS_ERR(rtc)) {
free_irq(AT91_ID_SYS, pdev); free_irq(AT91_ID_SYS, pdev);
return PTR_ERR(rtc); 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); struct rtc_device *rtc = platform_get_drvdata(pdev);
/* Disable all interrupts */ /* 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); free_irq(AT91_ID_SYS, pdev);
rtc_device_unregister(rtc); 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); save_time_delta(&at91_rtc_delta, &time);
pr_debug("%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __FUNCTION__, 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; return 0;
} }
@ -349,7 +368,8 @@ static int at91_rtc_resume(struct platform_device *pdev)
restore_time_delta(&at91_rtc_delta, &time); restore_time_delta(&at91_rtc_delta, &time);
pr_debug("%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __FUNCTION__, 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; return 0;
} }
@ -379,7 +399,6 @@ static void __exit at91_rtc_exit(void)
platform_driver_unregister(&at91_rtc_driver); platform_driver_unregister(&at91_rtc_driver);
} }
module_init(at91_rtc_init); module_init(at91_rtc_init);
module_exit(at91_rtc_exit); module_exit(at91_rtc_exit);