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Commit 01e18699 authored by Felipe Balbi's avatar Felipe Balbi Committed by Tony Lindgren
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I2C: TWL4030: checkpatch.pl fixes to rtc-twl4030.c 

Misc cleanup patch.
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent bff9e9c9
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Showing with 40 additions and 37 deletions
drivers/rtc/rtc-twl4030.c
View file @ 01e18699
/*
* drivers/rtc/rtc-twl4030.c
*
*
* TWL4030 Real Time Clock interface
*
*
* Copyright (C) 2007 MontaVista Software, Inc
* Author: Alexandre Rusev <source@mvista.com>
*
* Based on original TI driver twl4030-rtc.c
* Copyright (C) 2006 Texas Instruments, Inc.
*
*
* Based on rtc-omap.c
* Copyright (C) 2003 MontaVista Software, Inc.
* Author: George G. Davis <gdavis@mvista.com> or <source@mvista.com>
......@@ -19,7 +19,7 @@
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
*
*/
#include <linux/kernel.h>
......@@ -36,12 +36,12 @@
#include <linux/device.h>
#include <linux/i2c/twl4030.h>
#include <linux/i2c/twl4030-rtc.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <asm/io.h>
#include <asm/mach/time.h>
#include <asm/system.h>
#include <asm/hardware.h>
#include <asm/irq.h>
#define ALL_TIME_REGS 6
......@@ -51,10 +51,10 @@
*/
static int epoch = 1900; /* year corresponding to 0x00 */
/*
* Supports 1 byte read from TWL4030 RTC register.
/*
* Supports 1 byte read from TWL4030 RTC register.
*/
static int twl4030_rtc_read_u8(u8 * data, u8 reg)
static int twl4030_rtc_read_u8(u8 *data, u8 reg)
{
int ret;
......@@ -66,7 +66,7 @@ static int twl4030_rtc_read_u8(u8 * data, u8 reg)
return ret;
}
/*
/*
* Supports 1 byte write to TWL4030 RTC registers.
*/
static int twl4030_rtc_write_u8(u8 data, u8 reg)
......@@ -75,13 +75,13 @@ static int twl4030_rtc_write_u8(u8 data, u8 reg)
ret = twl4030_i2c_write_u8(TWL4030_MODULE_RTC, data, reg);
if (ret < 0) {
printk(KERN_WARNING "twl4030_rtc: Could not write TWL4030"
printk(KERN_WARNING "twl4030_rtc: Could not write TWL4030"
"register %X - returned %d[%x]\n", reg, ret, ret);
}
return ret;
}
/*
/*
* Enables timer or alarm interrupts.
*/
static int set_rtc_irq_bit(unsigned char bit)
......@@ -101,7 +101,7 @@ set_irq_out:
}
#ifdef CONFIG_PM
/*
/*
* Read timer or alarm interrupts register.
*/
static int get_rtc_irq_bit(unsigned char *val)
......@@ -112,7 +112,7 @@ static int get_rtc_irq_bit(unsigned char *val)
return ret;
}
#endif
/*
/*
* Disables timer or alarm interrupts.
*/
static int mask_rtc_irq_bit(unsigned char bit)
......@@ -123,7 +123,7 @@ static int mask_rtc_irq_bit(unsigned char bit)
ret = twl4030_rtc_read_u8(&val, REG_RTC_INTERRUPTS_REG);
if (ret < 0)
goto mask_irq_out;
val &= ~bit;
ret = twl4030_rtc_write_u8(val, REG_RTC_INTERRUPTS_REG);
......@@ -136,15 +136,15 @@ static int twl4030_rtc_alarm_irq_set_state(struct device *dev, int enabled)
int ret;
/* Allow ints for RTC ALARM updates. */
if (enabled)
if (enabled)
ret = set_rtc_irq_bit(BIT_RTC_INTERRUPTS_REG_IT_ALARM_M);
else
else
ret = mask_rtc_irq_bit(BIT_RTC_INTERRUPTS_REG_IT_ALARM_M);
return ret;
}
/*
/*
* Gets current TWL4030 RTC time and date parameters.
*/
static int get_rtc_time(struct rtc_time *rtc_tm)
......@@ -155,7 +155,7 @@ static int get_rtc_time(struct rtc_time *rtc_tm)
ret = twl4030_rtc_read_u8(&save_control, REG_RTC_CTRL_REG);
if (ret < 0)
return ret;
return ret;
save_control |= BIT_RTC_CTRL_REG_GET_TIME_M;
......@@ -182,7 +182,8 @@ static int get_rtc_time(struct rtc_time *rtc_tm)
* Account for differences between how the RTC uses the values
* and how they are defined in a struct rtc_time;
*/
if ((rtc_tm->tm_year += (epoch - 1900)) <= 69)
rtc_tm->tm_year += (epoch - 1900);
if (rtc_tm->tm_year <= 69)
rtc_tm->tm_year += 100;
rtc_tm->tm_mon--;
......@@ -218,7 +219,7 @@ static int twl4030_rtc_set_time(struct device *dev, struct rtc_time *tm)
/* update all the alarm registers in one shot */
ret = twl4030_i2c_write(TWL4030_MODULE_RTC, rtc_data,
REG_SECONDS_REG, ALL_TIME_REGS);
REG_SECONDS_REG, ALL_TIME_REGS);
if (ret < 0) {
printk(KERN_ERR "twl4030: twl4030_i2c_write error.\n");
goto out;
......@@ -232,7 +233,7 @@ out:
return ret;
}
/*
/*
* Gets current TWL4030 RTC alarm time.
*/
static int get_rtc_alm_time(struct rtc_time *alm_tm)
......@@ -258,7 +259,8 @@ static int get_rtc_alm_time(struct rtc_time *alm_tm)
* Account for differences between how the RTC uses the values
* and how they are defined in a struct rtc_time;
*/
if ((alm_tm->tm_year += (epoch - 1900)) <= 69)
alm_tm->tm_year += (epoch - 1900);
if (alm_tm->tm_year <= 69)
alm_tm->tm_year += 100;
alm_tm->tm_mon--;
......@@ -276,7 +278,7 @@ static int twl4030_rtc_read_time(struct device *dev, struct rtc_time *tm)
return ret;
}
/*
/*
* Gets current TWL4030 RTC alarm time.
*/
static int twl4030_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm)
......@@ -317,11 +319,11 @@ static int twl4030_rtc_irq_set_state(struct device *dev, int enabled)
int ret;
/* Allow ints for RTC updates. */
if (enabled)
if (enabled)
ret = set_rtc_irq_bit(BIT_RTC_INTERRUPTS_REG_IT_TIMER_M);
else
else
ret = mask_rtc_irq_bit(BIT_RTC_INTERRUPTS_REG_IT_TIMER_M);
return ret;
}
......@@ -342,7 +344,7 @@ static int twl4030_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
/* update all the alarm registers in one shot */
ret = twl4030_i2c_write(TWL4030_MODULE_RTC, alarm_data,
REG_ALARM_SECONDS_REG, ALL_TIME_REGS);
REG_ALARM_SECONDS_REG, ALL_TIME_REGS);
if (ret) {
printk(KERN_ERR "twl4030: twl4030_i2c_write error.\n");
goto out;
......@@ -398,7 +400,7 @@ static int twl4030_rtc_ioctl(struct device *dev, unsigned int cmd,
case RTC_EPOCH_READ:
return put_user(epoch, (unsigned long *)arg);
case RTC_EPOCH_SET:
case RTC_EPOCH_SET:
/*
* There were no RTC clocks before 1900.
*/
......@@ -425,7 +427,7 @@ static irqreturn_t twl4030_rtc_interrupt(int irq, void *rtc)
int ret = IRQ_NONE;
int res;
u8 rd_reg;
res = twl4030_rtc_read_u8(&rd_reg, REG_RTC_STATUS_REG);
if (res)
goto out;
......@@ -445,12 +447,13 @@ static irqreturn_t twl4030_rtc_interrupt(int irq, void *rtc)
if (res)
goto out;
/*
* Workaround for strange behaviour with T2. Need to write into ISR
* Workaround for strange behaviour with T2. Need to write into ISR
* register one more time to clear the interrupt. Otherwise, the same
* RTC event generates 2 interrupts in a row.
* (no errata document available)
*/
res = twl4030_i2c_write_u8(TWL4030_MODULE_INT, PWR_RTC_INT_CLR, REG_PWR_ISR1);
res = twl4030_i2c_write_u8(TWL4030_MODULE_INT,
PWR_RTC_INT_CLR, REG_PWR_ISR1);
if (res)
goto out;
......@@ -477,7 +480,7 @@ static int __devinit twl4030_rtc_probe(struct platform_device *pdev)
struct rtc_device *rtc;
int ret = 0;
u8 rd_reg;
if (pdata != NULL && pdata->init != NULL) {
ret = pdata->init();
if (ret < 0)
......@@ -520,7 +523,7 @@ static int __devinit twl4030_rtc_probe(struct platform_device *pdev)
if (ret < 0) {
dev_err(&pdev->dev, "IRQ is not free.\n");
goto out1;
}
}
/* Check RTC module status, Enable if it is off */
ret = twl4030_rtc_read_u8(&rd_reg, REG_RTC_CTRL_REG);
......@@ -550,7 +553,7 @@ static int __devinit twl4030_rtc_probe(struct platform_device *pdev)
goto out2;
/* Rising edge detection enabled, needed for RTC alarm */
rd_reg |= 0x80;
rd_reg |= 0x80;
ret = twl4030_i2c_write_u8(TWL4030_MODULE_INT, rd_reg, REG_PWR_EDR1);
if (ret < 0)
goto out2;
......@@ -584,7 +587,7 @@ static int __devexit twl4030_rtc_remove(struct platform_device *pdev)
free_irq(TWL4030_MODIRQ_PWR, rtc);
if (pdata != NULL && pdata->exit != NULL)
if (pdata != NULL && pdata->exit != NULL)
pdata->exit();
rtc_device_unregister(rtc);
......@@ -600,7 +603,7 @@ static void twl4030_rtc_shutdown(struct platform_device *pdev)
#ifdef CONFIG_PM
static unsigned char irqstat = 0;
static unsigned char irqstat;
static int twl4030_rtc_suspend(struct platform_device *pdev, pm_message_t state)
{
......
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