diff options
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-davinci.c | 1 | ||||
| -rw-r--r-- | drivers/rtc/rtc-ds1307.c | 4 | ||||
| -rw-r--r-- | drivers/rtc/rtc-rx8581.c | 20 |
3 files changed, 20 insertions, 5 deletions
diff --git a/drivers/rtc/rtc-davinci.c b/drivers/rtc/rtc-davinci.c index 92a8f6cacda..34647fc1ee9 100644 --- a/drivers/rtc/rtc-davinci.c +++ b/drivers/rtc/rtc-davinci.c @@ -29,6 +29,7 @@ #include <linux/bcd.h> #include <linux/platform_device.h> #include <linux/io.h> +#include <linux/slab.h> /* * The DaVinci RTC is a simple RTC with the following diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index de033b7ac21..d827ce570a8 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -777,7 +777,7 @@ static int __devinit ds1307_probe(struct i2c_client *client, read_rtc: /* read RTC registers */ - tmp = ds1307->read_block_data(ds1307->client, 0, 8, buf); + tmp = ds1307->read_block_data(ds1307->client, ds1307->offset, 8, buf); if (tmp != 8) { pr_debug("read error %d\n", tmp); err = -EIO; @@ -862,7 +862,7 @@ read_rtc: if (ds1307->regs[DS1307_REG_HOUR] & DS1307_BIT_PM) tmp += 12; i2c_smbus_write_byte_data(client, - DS1307_REG_HOUR, + ds1307->offset + DS1307_REG_HOUR, bin2bcd(tmp)); } diff --git a/drivers/rtc/rtc-rx8581.c b/drivers/rtc/rtc-rx8581.c index 9718aaaa821..600b890a3c1 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; |