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Subject[PATCH 02/10] RTC subsystem, DS1672 cleanup
 - removed a duplicate error message
- bumped driver version
- removed some debugging messages in excess
- refined the formatting
- adjusted copyright notice


Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: Kumar Gala <galak@kernel.crashing.org>

---
drivers/rtc/rtc-ds1672.c | 29 ++++++++++-------------------
1 file changed, 10 insertions(+), 19 deletions(-)
--- linux-rtc.orig/drivers/rtc/rtc-ds1672.c 2006-03-29 02:16:01.000000000 +0200
+++ linux-rtc/drivers/rtc/rtc-ds1672.c 2006-03-29 02:29:43.000000000 +0200
@@ -1,6 +1,8 @@
/*
* An rtc/i2c driver for the Dallas DS1672
- * Copyright 2005 Alessandro Zummo
+ * Copyright 2005-06 Tower Technologies
+ *
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -11,7 +13,7 @@
#include <linux/i2c.h>
#include <linux/rtc.h>

-#define DRV_VERSION "0.2"
+#define DRV_VERSION "0.3"

/* Addresses to scan: none. This chip cannot be detected. */
static unsigned short normal_i2c[] = { I2C_CLIENT_END };
@@ -23,9 +25,9 @@ I2C_CLIENT_INSMOD;

#define DS1672_REG_CNT_BASE 0
#define DS1672_REG_CONTROL 4
-#define DS1672_REG_CONTROL_EOSC 0x80
#define DS1672_REG_TRICKLE 5

+#define DS1672_REG_CONTROL_EOSC 0x80

/* Prototypes */
static int ds1672_probe(struct i2c_adapter *adapter, int address, int kind);
@@ -54,8 +56,7 @@ static int ds1672_get_datetime(struct i2

dev_dbg(&client->dev,
"%s: raw read data - counters=%02x,%02x,%02x,%02x\n"
- __FUNCTION__,
- buf[0], buf[1], buf[2], buf[3]);
+ __FUNCTION__, buf[0], buf[1], buf[2], buf[3]);

time = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0];

@@ -63,8 +64,7 @@ static int ds1672_get_datetime(struct i2

dev_dbg(&client->dev, "%s: tm is secs=%d, mins=%d, hours=%d, "
"mday=%d, mon=%d, year=%d, wday=%d\n",
- __FUNCTION__,
- tm->tm_sec, tm->tm_min, tm->tm_hour,
+ __FUNCTION__, tm->tm_sec, tm->tm_min, tm->tm_hour,
tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);

return 0;
@@ -144,7 +144,6 @@ static int ds1672_get_control(struct i2c
static ssize_t show_control(struct device *dev, struct device_attribute *attr, char *buf)
{
struct i2c_client *client = to_i2c_client(dev);
- char *state = "enabled";
u8 control;
int err;

@@ -152,12 +151,9 @@ static ssize_t show_control(struct devic
if (err)
return err;

- if (control & DS1672_REG_CONTROL_EOSC)
- state = "disabled";
-
- return sprintf(buf, "%s\n", state);
+ return sprintf(buf, "%s\n", (control & DS1672_REG_CONTROL_EOSC)
+ ? "disabled" : "enabled");
}
-
static DEVICE_ATTR(control, S_IRUGO, show_control, NULL);

static struct rtc_class_ops ds1672_rtc_ops = {
@@ -168,7 +164,6 @@ static struct rtc_class_ops ds1672_rtc_o

static int ds1672_attach(struct i2c_adapter *adapter)
{
- dev_dbg(&adapter->dev, "%s\n", __FUNCTION__);
return i2c_probe(adapter, &addr_data, ds1672_probe);
}

@@ -177,8 +172,6 @@ static int ds1672_detach(struct i2c_clie
int err;
struct rtc_device *rtc = i2c_get_clientdata(client);

- dev_dbg(&client->dev, "%s\n", __FUNCTION__);
-
if (rtc)
rtc_device_unregister(rtc);

@@ -245,10 +238,8 @@ static int ds1672_probe(struct i2c_adapt

/* read control register */
err = ds1672_get_control(client, &control);
- if (err) {
- dev_err(&client->dev, "%s: read error\n", __FUNCTION__);
+ if (err)
goto exit_detach;
- }

if (control & DS1672_REG_CONTROL_EOSC)
dev_warn(&client->dev, "Oscillator not enabled. "
--
-
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