string: factorize skip_spaces and export it to be generally available

[safe/jmp/linux-2.6] / drivers / rtc / rtc-stk17ta8.c

diff --git a/drivers/rtc/rtc-stk17ta8.c b/drivers/rtc/rtc-stk17ta8.c
index 31d3c8c..d491eb2 100644 (file)
--- a/drivers/rtc/rtc-stk17ta8.c
+++ b/drivers/rtc/rtc-stk17ta8.c
@@ -82,14 +82,14 @@ static int stk17ta8_rtc_set_time(struct device *dev, struct rtc_time *tm)
        flags = readb(pdata->ioaddr + RTC_FLAGS);
        writeb(flags | RTC_WRITE, pdata->ioaddr + RTC_FLAGS);
 
-       writeb(BIN2BCD(tm->tm_year % 100), ioaddr + RTC_YEAR);
-       writeb(BIN2BCD(tm->tm_mon + 1), ioaddr + RTC_MONTH);
-       writeb(BIN2BCD(tm->tm_wday) & RTC_DAY_MASK, ioaddr + RTC_DAY);
-       writeb(BIN2BCD(tm->tm_mday), ioaddr + RTC_DATE);
-       writeb(BIN2BCD(tm->tm_hour), ioaddr + RTC_HOURS);
-       writeb(BIN2BCD(tm->tm_min), ioaddr + RTC_MINUTES);
-       writeb(BIN2BCD(tm->tm_sec) & RTC_SECONDS_MASK, ioaddr + RTC_SECONDS);
-       writeb(BIN2BCD((tm->tm_year + 1900) / 100), ioaddr + RTC_CENTURY);
+       writeb(bin2bcd(tm->tm_year % 100), ioaddr + RTC_YEAR);
+       writeb(bin2bcd(tm->tm_mon + 1), ioaddr + RTC_MONTH);
+       writeb(bin2bcd(tm->tm_wday) & RTC_DAY_MASK, ioaddr + RTC_DAY);
+       writeb(bin2bcd(tm->tm_mday), ioaddr + RTC_DATE);
+       writeb(bin2bcd(tm->tm_hour), ioaddr + RTC_HOURS);
+       writeb(bin2bcd(tm->tm_min), ioaddr + RTC_MINUTES);
+       writeb(bin2bcd(tm->tm_sec) & RTC_SECONDS_MASK, ioaddr + RTC_SECONDS);
+       writeb(bin2bcd((tm->tm_year + 1900) / 100), ioaddr + RTC_CENTURY);
 
        writeb(flags & ~RTC_WRITE, pdata->ioaddr + RTC_FLAGS);
        return 0;
@@ -120,14 +120,14 @@ static int stk17ta8_rtc_read_time(struct device *dev, struct rtc_time *tm)
        year = readb(ioaddr + RTC_YEAR);
        century = readb(ioaddr + RTC_CENTURY);
        writeb(flags & ~RTC_READ, ioaddr + RTC_FLAGS);
-       tm->tm_sec = BCD2BIN(second);
-       tm->tm_min = BCD2BIN(minute);
-       tm->tm_hour = BCD2BIN(hour);
-       tm->tm_mday = BCD2BIN(day);
-       tm->tm_wday = BCD2BIN(week);
-       tm->tm_mon = BCD2BIN(month) - 1;
+       tm->tm_sec = bcd2bin(second);
+       tm->tm_min = bcd2bin(minute);
+       tm->tm_hour = bcd2bin(hour);
+       tm->tm_mday = bcd2bin(day);
+       tm->tm_wday = bcd2bin(week);
+       tm->tm_mon = bcd2bin(month) - 1;
        /* year is 1900 + tm->tm_year */
-       tm->tm_year = BCD2BIN(year) + BCD2BIN(century) * 100 - 1900;
+       tm->tm_year = bcd2bin(year) + bcd2bin(century) * 100 - 1900;
 
        if (rtc_valid_tm(tm) < 0) {
                dev_err(dev, "retrieved date/time is not valid.\n");
@@ -148,16 +148,16 @@ static void stk17ta8_rtc_update_alarm(struct rtc_plat_data *pdata)
        writeb(flags | RTC_WRITE, ioaddr + RTC_FLAGS);
 
        writeb(pdata->alrm_mday < 0 || (pdata->irqen & RTC_UF) ?
-              0x80 : BIN2BCD(pdata->alrm_mday),
+              0x80 : bin2bcd(pdata->alrm_mday),
               ioaddr + RTC_DATE_ALARM);
        writeb(pdata->alrm_hour < 0 || (pdata->irqen & RTC_UF) ?
-              0x80 : BIN2BCD(pdata->alrm_hour),
+              0x80 : bin2bcd(pdata->alrm_hour),
               ioaddr + RTC_HOURS_ALARM);
        writeb(pdata->alrm_min < 0 || (pdata->irqen & RTC_UF) ?
-              0x80 : BIN2BCD(pdata->alrm_min),
+              0x80 : bin2bcd(pdata->alrm_min),
               ioaddr + RTC_MINUTES_ALARM);
        writeb(pdata->alrm_sec < 0 || (pdata->irqen & RTC_UF) ?
-              0x80 : BIN2BCD(pdata->alrm_sec),
+              0x80 : bin2bcd(pdata->alrm_sec),
               ioaddr + RTC_SECONDS_ALARM);
        writeb(pdata->irqen ? RTC_INTS_AIE : 0, ioaddr + RTC_INTERRUPTS);
        readb(ioaddr + RTC_FLAGS);      /* clear interrupts */
@@ -170,7 +170,7 @@ static int stk17ta8_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
        struct platform_device *pdev = to_platform_device(dev);
        struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
 
-       if (pdata->irq < 0)
+       if (pdata->irq <= 0)
                return -EINVAL;
        pdata->alrm_mday = alrm->time.tm_mday;
        pdata->alrm_hour = alrm->time.tm_hour;
@@ -187,7 +187,7 @@ static int stk17ta8_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
        struct platform_device *pdev = to_platform_device(dev);
        struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
 
-       if (pdata->irq < 0)
+       if (pdata->irq <= 0)
                return -EINVAL;
        alrm->time.tm_mday = pdata->alrm_mday < 0 ? 0 : pdata->alrm_mday;
        alrm->time.tm_hour = pdata->alrm_hour < 0 ? 0 : pdata->alrm_hour;
@@ -215,24 +215,13 @@ static irqreturn_t stk17ta8_rtc_interrupt(int irq, void *dev_id)
        return IRQ_HANDLED;
 }
 
-static void stk17ta8_rtc_release(struct device *dev)
-{
-       struct platform_device *pdev = to_platform_device(dev);
-       struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
-
-       if (pdata->irq >= 0) {
-               pdata->irqen = 0;
-               stk17ta8_rtc_update_alarm(pdata);
-       }
-}
-
 static int stk17ta8_rtc_ioctl(struct device *dev, unsigned int cmd,
                            unsigned long arg)
 {
        struct platform_device *pdev = to_platform_device(dev);
        struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
 
-       if (pdata->irq < 0)
+       if (pdata->irq <= 0)
                return -ENOIOCTLCMD; /* fall back into rtc-dev's emulation */
        switch (cmd) {
        case RTC_AIE_OFF:
@@ -254,7 +243,6 @@ static const struct rtc_class_ops stk17ta8_rtc_ops = {
        .set_time       = stk17ta8_rtc_set_time,
        .read_alarm     = stk17ta8_rtc_read_alarm,
        .set_alarm      = stk17ta8_rtc_set_alarm,
-       .release        = stk17ta8_rtc_release,
        .ioctl          = stk17ta8_rtc_ioctl,
 };
 
@@ -292,14 +280,13 @@ static struct bin_attribute stk17ta8_nvram_attr = {
        .attr = {
                .name = "nvram",
                .mode = S_IRUGO | S_IWUSR,
-               .owner = THIS_MODULE,
        },
        .size = RTC_OFFSET,
        .read = stk17ta8_nvram_read,
        .write = stk17ta8_nvram_write,
 };
 
-static int __init stk17ta8_rtc_probe(struct platform_device *pdev)
+static int __devinit stk17ta8_rtc_probe(struct platform_device *pdev)
 {
        struct rtc_device *rtc;
        struct resource *res;
@@ -316,7 +303,6 @@ static int __init stk17ta8_rtc_probe(struct platform_device *pdev)
        pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
        if (!pdata)
                return -ENOMEM;
-       pdata->irq = -1;
        if (!request_mem_region(res->start, RTC_REG_SIZE, pdev->name)) {
                ret = -EBUSY;
                goto out;
@@ -342,13 +328,13 @@ static int __init stk17ta8_rtc_probe(struct platform_device *pdev)
        if (readb(ioaddr + RTC_FLAGS) & RTC_FLAGS_PF)
                dev_warn(&pdev->dev, "voltage-low detected.\n");
 
-       if (pdata->irq >= 0) {
+       if (pdata->irq > 0) {
                writeb(0, ioaddr + RTC_INTERRUPTS);
                if (request_irq(pdata->irq, stk17ta8_rtc_interrupt,
                                IRQF_DISABLED | IRQF_SHARED,
                                pdev->name, pdev) < 0) {
                        dev_warn(&pdev->dev, "interrupt not available.\n");
-                       pdata->irq = -1;
+                       pdata->irq = 0;
                }
        }
 
@@ -368,7 +354,7 @@ static int __init stk17ta8_rtc_probe(struct platform_device *pdev)
  out:
        if (pdata->rtc)
                rtc_device_unregister(pdata->rtc);
-       if (pdata->irq >= 0)
+       if (pdata->irq > 0)
                free_irq(pdata->irq, pdev);
        if (ioaddr)
                iounmap(ioaddr);
@@ -384,7 +370,7 @@ static int __devexit stk17ta8_rtc_remove(struct platform_device *pdev)
 
        sysfs_remove_bin_file(&pdev->dev.kobj, &stk17ta8_nvram_attr);
        rtc_device_unregister(pdata->rtc);
-       if (pdata->irq >= 0) {
+       if (pdata->irq > 0) {
                writeb(0, pdata->ioaddr + RTC_INTERRUPTS);
                free_irq(pdata->irq, pdev);
        }
@@ -413,7 +399,7 @@ static __init int stk17ta8_init(void)
 
 static __exit void stk17ta8_exit(void)
 {
-       return platform_driver_unregister(&stk17ta8_rtc_driver);
+       platform_driver_unregister(&stk17ta8_rtc_driver);
 }
 
 module_init(stk17ta8_init);