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kernel_linux
提交 68b54f47 编写于 作者: H H Hartley Sweeten 提交者： Alexandre Belloni
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rtc: m48t86: shorten register name defines 

For aesthetics. Shorten all the register names by removing '_REG' from all
of them.
This helps fix all the checkpatch.pl issues.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
上级 6db6bd47
隐藏空白更改
内联 并排
Showing with 63 addition and 64 deletion
drivers/rtc/rtc-m48t86.c
浏览文件 @ 68b54f47
......@@ -19,25 +19,24 @@
#include <linux/platform_data/rtc-m48t86.h>
#include <linux/bcd.h>
#define M48T86_REG_SEC 0x00
#define M48T86_REG_SECALRM 0x01
#define M48T86_REG_MIN 0x02
#define M48T86_REG_MINALRM 0x03
#define M48T86_REG_HOUR 0x04
#define M48T86_REG_HOURALRM 0x05
#define M48T86_REG_DOW 0x06 /* 1 = sunday */
#define M48T86_REG_DOM 0x07
#define M48T86_REG_MONTH 0x08 /* 1 - 12 */
#define M48T86_REG_YEAR 0x09 /* 0 - 99 */
#define M48T86_REG_A 0x0A
#define M48T86_REG_B 0x0B
#define M48T86_REG_C 0x0C
#define M48T86_REG_D 0x0D
#define M48T86_REG_B_H24 (1 << 1)
#define M48T86_REG_B_DM (1 << 2)
#define M48T86_REG_B_SET (1 << 7)
#define M48T86_REG_D_VRT (1 << 7)
#define M48T86_SEC 0x00
#define M48T86_SECALRM 0x01
#define M48T86_MIN 0x02
#define M48T86_MINALRM 0x03
#define M48T86_HOUR 0x04
#define M48T86_HOURALRM 0x05
#define M48T86_DOW 0x06 /* 1 = sunday */
#define M48T86_DOM 0x07
#define M48T86_MONTH 0x08 /* 1 - 12 */
#define M48T86_YEAR 0x09 /* 0 - 99 */
#define M48T86_A 0x0a
#define M48T86_B 0x0b
#define M48T86_B_SET BIT(7)
#define M48T86_B_DM BIT(2)
#define M48T86_B_H24 BIT(1)
#define M48T86_C 0x0c
#define M48T86_D 0x0d
#define M48T86_D_VRT BIT(7)
static int m48t86_rtc_read_time(struct device *dev, struct rtc_time *tm)
{
......@@ -45,33 +44,33 @@ static int m48t86_rtc_read_time(struct device *dev, struct rtc_time *tm)
struct platform_device *pdev = to_platform_device(dev);
struct m48t86_ops *ops = dev_get_platdata(&pdev->dev);
reg = ops->readbyte(M48T86_REG_B);
reg = ops->readbyte(M48T86_B);
if (reg & M48T86_REG_B_DM) {
if (reg & M48T86_B_DM) {
/* data (binary) mode */
tm->tm_sec = ops->readbyte(M48T86_REG_SEC);
tm->tm_min = ops->readbyte(M48T86_REG_MIN);
tm->tm_hour = ops->readbyte(M48T86_REG_HOUR) & 0x3F;
tm->tm_mday = ops->readbyte(M48T86_REG_DOM);
tm->tm_sec = ops->readbyte(M48T86_SEC);
tm->tm_min = ops->readbyte(M48T86_MIN);
tm->tm_hour = ops->readbyte(M48T86_HOUR) & 0x3f;
tm->tm_mday = ops->readbyte(M48T86_DOM);
/* tm_mon is 0-11 */
tm->tm_mon = ops->readbyte(M48T86_REG_MONTH) - 1;
tm->tm_year = ops->readbyte(M48T86_REG_YEAR) + 100;
tm->tm_wday = ops->readbyte(M48T86_REG_DOW);
tm->tm_mon = ops->readbyte(M48T86_MONTH) - 1;
tm->tm_year = ops->readbyte(M48T86_YEAR) + 100;
tm->tm_wday = ops->readbyte(M48T86_DOW);
} else {
/* bcd mode */
tm->tm_sec = bcd2bin(ops->readbyte(M48T86_REG_SEC));
tm->tm_min = bcd2bin(ops->readbyte(M48T86_REG_MIN));
tm->tm_hour = bcd2bin(ops->readbyte(M48T86_REG_HOUR) & 0x3F);
tm->tm_mday = bcd2bin(ops->readbyte(M48T86_REG_DOM));
tm->tm_sec = bcd2bin(ops->readbyte(M48T86_SEC));
tm->tm_min = bcd2bin(ops->readbyte(M48T86_MIN));
tm->tm_hour = bcd2bin(ops->readbyte(M48T86_HOUR) & 0x3f);
tm->tm_mday = bcd2bin(ops->readbyte(M48T86_DOM));
/* tm_mon is 0-11 */
tm->tm_mon = bcd2bin(ops->readbyte(M48T86_REG_MONTH)) - 1;
tm->tm_year = bcd2bin(ops->readbyte(M48T86_REG_YEAR)) + 100;
tm->tm_wday = bcd2bin(ops->readbyte(M48T86_REG_DOW));
tm->tm_mon = bcd2bin(ops->readbyte(M48T86_MONTH)) - 1;
tm->tm_year = bcd2bin(ops->readbyte(M48T86_YEAR)) + 100;
tm->tm_wday = bcd2bin(ops->readbyte(M48T86_DOW));
}
/* correct the hour if the clock is in 12h mode */
if (!(reg & M48T86_REG_B_H24))
if (ops->readbyte(M48T86_REG_HOUR) & 0x80)
if (!(reg & M48T86_B_H24))
if (ops->readbyte(M48T86_HOUR) & 0x80)
tm->tm_hour += 12;
return rtc_valid_tm(tm);
......@@ -83,35 +82,35 @@ static int m48t86_rtc_set_time(struct device *dev, struct rtc_time *tm)
struct platform_device *pdev = to_platform_device(dev);
struct m48t86_ops *ops = dev_get_platdata(&pdev->dev);
reg = ops->readbyte(M48T86_REG_B);
reg = ops->readbyte(M48T86_B);
/* update flag and 24h mode */
reg |= M48T86_REG_B_SET | M48T86_REG_B_H24;
ops->writebyte(reg, M48T86_REG_B);
reg |= M48T86_B_SET | M48T86_B_H24;
ops->writebyte(reg, M48T86_B);
if (reg & M48T86_REG_B_DM) {
if (reg & M48T86_B_DM) {
/* data (binary) mode */
ops->writebyte(tm->tm_sec, M48T86_REG_SEC);
ops->writebyte(tm->tm_min, M48T86_REG_MIN);
ops->writebyte(tm->tm_hour, M48T86_REG_HOUR);
ops->writebyte(tm->tm_mday, M48T86_REG_DOM);
ops->writebyte(tm->tm_mon + 1, M48T86_REG_MONTH);
ops->writebyte(tm->tm_year % 100, M48T86_REG_YEAR);
ops->writebyte(tm->tm_wday, M48T86_REG_DOW);
ops->writebyte(tm->tm_sec, M48T86_SEC);
ops->writebyte(tm->tm_min, M48T86_MIN);
ops->writebyte(tm->tm_hour, M48T86_HOUR);
ops->writebyte(tm->tm_mday, M48T86_DOM);
ops->writebyte(tm->tm_mon + 1, M48T86_MONTH);
ops->writebyte(tm->tm_year % 100, M48T86_YEAR);
ops->writebyte(tm->tm_wday, M48T86_DOW);
} else {
/* bcd mode */
ops->writebyte(bin2bcd(tm->tm_sec), M48T86_REG_SEC);
ops->writebyte(bin2bcd(tm->tm_min), M48T86_REG_MIN);
ops->writebyte(bin2bcd(tm->tm_hour), M48T86_REG_HOUR);
ops->writebyte(bin2bcd(tm->tm_mday), M48T86_REG_DOM);
ops->writebyte(bin2bcd(tm->tm_mon + 1), M48T86_REG_MONTH);
ops->writebyte(bin2bcd(tm->tm_year % 100), M48T86_REG_YEAR);
ops->writebyte(bin2bcd(tm->tm_wday), M48T86_REG_DOW);
ops->writebyte(bin2bcd(tm->tm_sec), M48T86_SEC);
ops->writebyte(bin2bcd(tm->tm_min), M48T86_MIN);
ops->writebyte(bin2bcd(tm->tm_hour), M48T86_HOUR);
ops->writebyte(bin2bcd(tm->tm_mday), M48T86_DOM);
ops->writebyte(bin2bcd(tm->tm_mon + 1), M48T86_MONTH);
ops->writebyte(bin2bcd(tm->tm_year % 100), M48T86_YEAR);
ops->writebyte(bin2bcd(tm->tm_wday), M48T86_DOW);
}
/* update ended */
reg &= ~M48T86_REG_B_SET;
ops->writebyte(reg, M48T86_REG_B);
reg &= ~M48T86_B_SET;
ops->writebyte(reg, M48T86_B);
return 0;
}
......@@ -122,15 +121,15 @@ static int m48t86_rtc_proc(struct device *dev, struct seq_file *seq)
struct platform_device *pdev = to_platform_device(dev);
struct m48t86_ops *ops = dev_get_platdata(&pdev->dev);
reg = ops->readbyte(M48T86_REG_B);
reg = ops->readbyte(M48T86_B);
seq_printf(seq, "mode\t\t: %s\n",
(reg & M48T86_REG_B_DM) ? "binary" : "bcd");
(reg & M48T86_B_DM) ? "binary" : "bcd");
reg = ops->readbyte(M48T86_REG_D);
reg = ops->readbyte(M48T86_D);
seq_printf(seq, "battery\t\t: %s\n",
(reg & M48T86_REG_D_VRT) ? "ok" : "exhausted");
(reg & M48T86_D_VRT) ? "ok" : "exhausted");
return 0;
}
......@@ -148,7 +147,7 @@ static int m48t86_rtc_probe(struct platform_device *dev)
struct rtc_device *rtc;
rtc = devm_rtc_device_register(&dev->dev, "m48t86",
&m48t86_rtc_ops, THIS_MODULE);
&m48t86_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc))
return PTR_ERR(rtc);
......@@ -156,9 +155,9 @@ static int m48t86_rtc_probe(struct platform_device *dev)
platform_set_drvdata(dev, rtc);
/* read battery status */
reg = ops->readbyte(M48T86_REG_D);
reg = ops->readbyte(M48T86_D);
dev_info(&dev->dev, "battery %s\n",
(reg & M48T86_REG_D_VRT) ? "ok" : "exhausted");
(reg & M48T86_D_VRT) ? "ok" : "exhausted");
return 0;
}
......
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