rtc: omap: fix minor coding style issues

Fix minor coding style issues like comment style, indentation and remove
a few unnecessary casts.

Also drop the 1 from OMAP1 in the driver description.

Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Benot Cousson <bcousson@baylibre.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Keerthy J <j-keerthy@ti.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c
index 0dfb040..3128be5 100644 (file)
--- a/drivers/rtc/rtc-omap.c
+++ b/drivers/rtc/rtc-omap.c
@@ -1,5 +1,5 @@
 /*
- * TI OMAP1 Real Time Clock interface for Linux
+ * TI OMAP Real Time Clock interface for Linux
  *
  * Copyright (C) 2003 MontaVista Software, Inc.
  * Author: George G. Davis <gdavis@mvista.com> or <source@mvista.com>
@@ -25,7 +25,8 @@
 #include <linux/pm_runtime.h>
 #include <linux/io.h>
 
-/* The OMAP1 RTC is a year/month/day/hours/minutes/seconds BCD clock
+/*
+ * The OMAP RTC is a year/month/day/hours/minutes/seconds BCD clock
  * with century-range alarm matching, driven by the 32kHz clock.
  *
  * The main user-visible ways it differs from PC RTCs are by omitting
@@ -154,19 +155,20 @@ static inline void rtc_writel(struct omap_rtc *rtc, unsigned int reg, u32 val)
        writel(val, rtc->base + reg);
 }
 
-/* we rely on the rtc framework to handle locking (rtc->ops_lock),
+/*
+ * We rely on the rtc framework to handle locking (rtc->ops_lock),
  * so the only other requirement is that register accesses which
  * require BUSY to be clear are made with IRQs locally disabled
  */
 static void rtc_wait_not_busy(struct omap_rtc *rtc)
 {
-       int     count = 0;
-       u8      status;
+       int count;
+       u8 status;
 
        /* BUSY may stay active for 1/32768 second (~30 usec) */
        for (count = 0; count < 50; count++) {
                status = rtc_read(rtc, OMAP_RTC_STATUS_REG);
-               if ((status & (u8)OMAP_RTC_STATUS_BUSY) == 0)
+               if (!(status & OMAP_RTC_STATUS_BUSY))
                        break;
                udelay(1);
        }
@@ -175,9 +177,9 @@ static void rtc_wait_not_busy(struct omap_rtc *rtc)
 
 static irqreturn_t rtc_irq(int irq, void *dev_id)
 {
-       struct omap_rtc         *rtc = dev_id;
-       unsigned long           events = 0;
-       u8                      irq_data;
+       struct omap_rtc *rtc = dev_id;
+       unsigned long events = 0;
+       u8 irq_data;
 
        irq_data = rtc_read(rtc, OMAP_RTC_STATUS_REG);
 
@@ -276,6 +278,7 @@ static int omap_rtc_read_time(struct device *dev, struct rtc_time *tm)
        local_irq_enable();
 
        bcd2tm(tm);
+
        return 0;
 }
 
@@ -285,6 +288,7 @@ static int omap_rtc_set_time(struct device *dev, struct rtc_time *tm)
 
        if (tm2bcd(tm) < 0)
                return -EINVAL;
+
        local_irq_disable();
        rtc_wait_not_busy(rtc);
 
@@ -303,6 +307,7 @@ static int omap_rtc_set_time(struct device *dev, struct rtc_time *tm)
 static int omap_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm)
 {
        struct omap_rtc *rtc = dev_get_drvdata(dev);
+       u8 interrupts;
 
        local_irq_disable();
        rtc_wait_not_busy(rtc);
@@ -317,8 +322,9 @@ static int omap_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm)
        local_irq_enable();
 
        bcd2tm(&alm->time);
-       alm->enabled = !!(rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG)
-                       & OMAP_RTC_INTERRUPTS_IT_ALARM);
+
+       interrupts = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);
+       alm->enabled = !!(interrupts & OMAP_RTC_INTERRUPTS_IT_ALARM);
 
        return 0;
 }
@@ -479,9 +485,9 @@ MODULE_DEVICE_TABLE(of, omap_rtc_of_match);
 
 static int __init omap_rtc_probe(struct platform_device *pdev)
 {
-       struct omap_rtc         *rtc;
-       struct resource         *res;
-       u8                      reg, mask, new_ctrl;
+       struct omap_rtc *rtc;
+       struct resource *res;
+       u8 reg, mask, new_ctrl;
        const struct platform_device_id *id_entry;
        const struct of_device_id *of_id;
        int ret;
@@ -558,14 +564,15 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
 
        /* On boards with split power, RTC_ON_NOFF won't reset the RTC */
        reg = rtc_read(rtc, OMAP_RTC_CTRL_REG);
-       if (reg & (u8) OMAP_RTC_CTRL_STOP)
+       if (reg & OMAP_RTC_CTRL_STOP)
                dev_info(&pdev->dev, "already running\n");
 
        /* force to 24 hour mode */
-       new_ctrl = reg & (OMAP_RTC_CTRL_SPLIT|OMAP_RTC_CTRL_AUTO_COMP);
+       new_ctrl = reg & (OMAP_RTC_CTRL_SPLIT | OMAP_RTC_CTRL_AUTO_COMP);
        new_ctrl |= OMAP_RTC_CTRL_STOP;
 
-       /* BOARD-SPECIFIC CUSTOMIZATION CAN GO HERE:
+       /*
+        * BOARD-SPECIFIC CUSTOMIZATION CAN GO HERE:
         *
         *  - Device wake-up capability setting should come through chip
         *    init logic. OMAP1 boards should initialize the "wakeup capable"
@@ -579,7 +586,7 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
         *    is write-only, and always reads as zero...)
         */
 
-       if (new_ctrl & (u8) OMAP_RTC_CTRL_SPLIT)
+       if (new_ctrl & OMAP_RTC_CTRL_SPLIT)
                dev_info(&pdev->dev, "split power mode\n");
 
        if (reg != new_ctrl)
@@ -658,7 +665,8 @@ static int omap_rtc_suspend(struct device *dev)
 
        rtc->interrupts_reg = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);
 
-       /* FIXME the RTC alarm is not currently acting as a wakeup event
+       /*
+        * FIXME: the RTC alarm is not currently acting as a wakeup event
         * source on some platforms, and in fact this enable() call is just
         * saving a flag that's never used...
         */