diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-08-06 18:13:54 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-08-06 18:13:54 +0100 |
| commit | 11e4afb49b7fa1fc8e1ffd850c1806dd86a08204 (patch) | |
| tree | 9e57efcb106ae912f7bec718feb3f8ec607559bb /drivers/rtc/rtc-rx8581.c | |
| parent | 162500b3a3ff39d941d29db49b41a16667ae44f0 (diff) | |
| parent | 9b2a606d3898fcb2eedb6faded3bb37549590ac4 (diff) | |
Merge branches 'gemini' and 'misc' into devel
Diffstat (limited to 'drivers/rtc/rtc-rx8581.c')
| -rw-r--r-- | drivers/rtc/rtc-rx8581.c | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/drivers/rtc/rtc-rx8581.c b/drivers/rtc/rtc-rx8581.c index c9522f3bc21..600b890a3c1 100644 --- a/drivers/rtc/rtc-rx8581.c +++ b/drivers/rtc/rtc-rx8581.c @@ -1,8 +1,8 @@ /* * An I2C driver for the Epson RX8581 RTC * - * Author: Martyn Welch <martyn.welch@gefanuc.com> - * Copyright 2008 GE Fanuc Intelligent Platforms Embedded Systems, Inc. + * Author: Martyn Welch <martyn.welch@ge.com> + * Copyright 2008 GE Intelligent Platforms Embedded Systems, Inc. * * 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 @@ -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; @@ -272,7 +286,7 @@ static void __exit rx8581_exit(void) i2c_del_driver(&rx8581_driver); } -MODULE_AUTHOR("Martyn Welch <martyn.welch@gefanuc.com>"); +MODULE_AUTHOR("Martyn Welch <martyn.welch@ge.com>"); MODULE_DESCRIPTION("Epson RX-8581 RTC driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION); |