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>

1 files changed, 27 insertions, 19 deletions

diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c
index 0dfb0404f867..3128be5e3644 100644
--- 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...
          */