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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-07-29 15:48:02 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-07-29 15:48:02 +0100 |
| commit | 129961ecaf21c9ee899ad9067d917c1aa172fb7a (patch) | |
| tree | 49eafdcf4d6ac490ecdd92c36c285817872eaf34 /drivers/rtc | |
| parent | 392c57a2ec811db37ae45adc513704cf92ba3e69 (diff) | |
| parent | cccf59abea4e1c36322e365d6e61ff7de1f3ee07 (diff) | |
| download | linux-129961ecaf21c9ee899ad9067d917c1aa172fb7a.tar.gz linux-129961ecaf21c9ee899ad9067d917c1aa172fb7a.tar.bz2 linux-129961ecaf21c9ee899ad9067d917c1aa172fb7a.zip | |
Merge branch 'wells/lpc32xx-arch_v2' of git://git.lpclinux.com/linux-2.6-lpc into devel-stable
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-rx8581.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/rtc/rtc-rx8581.c b/drivers/rtc/rtc-rx8581.c index 9718aaaa8215..600b890a3c15 100644 --- a/drivers/rtc/rtc-rx8581.c +++ b/drivers/rtc/rtc-rx8581.c @@ -168,7 +168,7 @@ static int rx8581_set_datetime(struct i2c_client *client, struct rtc_time *tm) return -EIO; } - err = i2c_smbus_write_byte_data(client, RX8581_REG_FLAG, + err = i2c_smbus_write_byte_data(client, RX8581_REG_CTRL, (data | RX8581_CTRL_STOP)); if (err < 0) { dev_err(&client->dev, "Unable to write control register\n"); @@ -182,6 +182,20 @@ static int rx8581_set_datetime(struct i2c_client *client, struct rtc_time *tm) return -EIO; } + /* get VLF and clear it */ + data = i2c_smbus_read_byte_data(client, RX8581_REG_FLAG); + if (data < 0) { + dev_err(&client->dev, "Unable to read flag register\n"); + return -EIO; + } + + err = i2c_smbus_write_byte_data(client, RX8581_REG_FLAG, + (data & ~(RX8581_FLAG_VLF))); + if (err != 0) { + dev_err(&client->dev, "Unable to write flag register\n"); + return -EIO; + } + /* Restart the clock */ data = i2c_smbus_read_byte_data(client, RX8581_REG_CTRL); if (data < 0) { @@ -189,8 +203,8 @@ static int rx8581_set_datetime(struct i2c_client *client, struct rtc_time *tm) return -EIO; } - err = i2c_smbus_write_byte_data(client, RX8581_REG_FLAG, - (data | ~(RX8581_CTRL_STOP))); + err = i2c_smbus_write_byte_data(client, RX8581_REG_CTRL, + (data & ~(RX8581_CTRL_STOP))); if (err != 0) { dev_err(&client->dev, "Unable to write control register\n"); return -EIO; |