From 74d88eb2930f09e1a63d61cc9d4cffc50c684412 Mon Sep 17 00:00:00 2001 From: Jüri Reitel Date: Wed, 7 Jan 2009 18:07:16 -0800 Subject: rtc-ds1307: remove legacy probe() checks MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Remove RTC register value checks from the rtc-ds1307 probe() function. They were left over from the legacy style I2C driver, which had to defend against finding a non-RTC chip when the driver was probed. Also fix a minor glitch in the alarm support: DS1307 chips don't have alarms, so name those methods after one of the chips which actually *do* have alarms (DS1337). Signed-off-by: Jüri Reitel Signed-off-by: David Brownell Cc: Sebastien Barre Cc: Alessandro Zummo Acked-by: Jean Delvare Cc: Rodolfo Giometti Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/rtc/rtc-ds1307.c | 31 ++++--------------------------- 1 file changed, 4 insertions(+), 27 deletions(-) (limited to 'drivers/rtc/rtc-ds1307.c') diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index fec13e7d48ef..7e5155e88ac7 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -287,7 +287,7 @@ static int ds1307_set_time(struct device *dev, struct rtc_time *t) return 0; } -static int ds1307_read_alarm(struct device *dev, struct rtc_wkalrm *t) +static int ds1337_read_alarm(struct device *dev, struct rtc_wkalrm *t) { struct i2c_client *client = to_i2c_client(dev); struct ds1307 *ds1307 = i2c_get_clientdata(client); @@ -338,7 +338,7 @@ static int ds1307_read_alarm(struct device *dev, struct rtc_wkalrm *t) return 0; } -static int ds1307_set_alarm(struct device *dev, struct rtc_wkalrm *t) +static int ds1337_set_alarm(struct device *dev, struct rtc_wkalrm *t) { struct i2c_client *client = to_i2c_client(dev); struct ds1307 *ds1307 = i2c_get_clientdata(client); @@ -452,8 +452,8 @@ static int ds1307_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) static const struct rtc_class_ops ds13xx_rtc_ops = { .read_time = ds1307_get_time, .set_time = ds1307_set_time, - .read_alarm = ds1307_read_alarm, - .set_alarm = ds1307_set_alarm, + .read_alarm = ds1337_read_alarm, + .set_alarm = ds1337_set_alarm, .ioctl = ds1307_ioctl, }; @@ -654,22 +654,6 @@ read_rtc: break; } - tmp = ds1307->regs[DS1307_REG_SECS]; - tmp = bcd2bin(tmp & 0x7f); - if (tmp > 60) - goto exit_bad; - tmp = bcd2bin(ds1307->regs[DS1307_REG_MIN] & 0x7f); - if (tmp > 60) - goto exit_bad; - - tmp = bcd2bin(ds1307->regs[DS1307_REG_MDAY] & 0x3f); - if (tmp == 0 || tmp > 31) - goto exit_bad; - - tmp = bcd2bin(ds1307->regs[DS1307_REG_MONTH] & 0x1f); - if (tmp == 0 || tmp > 12) - goto exit_bad; - tmp = ds1307->regs[DS1307_REG_HOUR]; switch (ds1307->type) { case ds_1340: @@ -726,13 +710,6 @@ read_rtc: return 0; -exit_bad: - dev_dbg(&client->dev, "%s: %02x %02x %02x %02x %02x %02x %02x\n", - "bogus register", - ds1307->regs[0], ds1307->regs[1], - ds1307->regs[2], ds1307->regs[3], - ds1307->regs[4], ds1307->regs[5], - ds1307->regs[6]); exit_irq: if (ds1307->rtc) rtc_device_unregister(ds1307->rtc); -- cgit v1.2.3