rtc: pcf8523: Rename REG_OFFSET

rtc: pcf8523: Rename REG_OFFSET

[Thomas Gleixner]

Moving ARM to the generic irqstat infrastructure caused
arch/arm/mach-ixp4xx/include/mach/platform.h to be included indirectly in
interrupt related headers, which results in a build failure:

>> drivers/rtc/rtc-pcf8523.c:35: warning: "REG_OFFSET" redefined                                                                                                                                                                                                                
      35 | #define REG_OFFSET   0x0e                                                                                                                                                                                                                                           

Rename it to PCF_REG_OFFSET and for consistency the mode define to
PCF_REG_OFFSET_MODE.

Fixes: 7fd70c65faac ("ARM: irqstat: Get rid of duplicated declaration")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-rtc@vger.kernel.org
---
 drivers/rtc/rtc-pcf8523.c |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

--- a/drivers/rtc/rtc-pcf8523.c
+++ b/drivers/rtc/rtc-pcf8523.c
@@ -41,8 +41,8 @@
 #define REG_WEEKDAY_ALARM	0x0d
 #define ALARM_DIS BIT(7)
 
-#define REG_OFFSET   0x0e
-#define REG_OFFSET_MODE BIT(7)
+#define PCF_REG_OFFSET		0x0e
+#define PCF_REG_OFFSET_MODE	BIT(7)
 
 #define REG_TMR_CLKOUT_CTRL 0x0f
 
@@ -442,13 +442,13 @@ static int pcf8523_rtc_read_offset(struc
 	u8 value;
 	s8 val;
 
-	err = pcf8523_read(client, REG_OFFSET, &value);
+	err = pcf8523_read(client, PCF_REG_OFFSET, &value);
 	if (err < 0)
 		return err;
 
 	/* sign extend the 7-bit offset value */
 	val = value << 1;
-	*offset = (value & REG_OFFSET_MODE ? 4069 : 4340) * (val >> 1);
+	*offset = (value & PCF_REG_OFFSET_MODE ? 4069 : 4340) * (val >> 1);
 
 	return 0;
 }
@@ -465,9 +465,9 @@ static int pcf8523_rtc_set_offset(struct
 	if (abs(reg_m0 * 4340 - offset) < abs(reg_m1 * 4069 - offset))
 		value = reg_m0 & 0x7f;
 	else
-		value = (reg_m1 & 0x7f) | REG_OFFSET_MODE;
+		value = (reg_m1 & 0x7f) | PCF_REG_OFFSET_MODE;
 
-	return pcf8523_write(client, REG_OFFSET, value);
+	return pcf8523_write(client, PCF_REG_OFFSET, value);
 }
 
 static const struct rtc_class_ops pcf8523_rtc_ops = {