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[PATCH] I2C: ds1337 - fix 12/24 hour mode bug
DS1339 manual, page 6, chapter Date and time operation: The DS1339 can be run in either 12-hour or 24-hour mode. Bit 6 of the hours register is defined as the 12-hour or 24-hour mode-select bit. When high, the 12-hour mode is selected. Patch below makes ds1337 driver work as documented in manual. Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -165,7 +165,7 @@ static int ds1337_set_datetime(struct i2c_client *client, struct rtc_time *dt)
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buf[0] = 0; /* reg offset */
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buf[1] = BIN2BCD(dt->tm_sec);
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buf[2] = BIN2BCD(dt->tm_min);
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buf[3] = BIN2BCD(dt->tm_hour) | (1 << 6);
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buf[3] = BIN2BCD(dt->tm_hour);
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buf[4] = BIN2BCD(dt->tm_wday) + 1;
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buf[5] = BIN2BCD(dt->tm_mday);
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buf[6] = BIN2BCD(dt->tm_mon) + 1;
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@ -344,9 +344,9 @@ static void ds1337_init_client(struct i2c_client *client)
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/* Ensure that device is set in 24-hour mode */
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val = i2c_smbus_read_byte_data(client, DS1337_REG_HOUR);
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if ((val >= 0) && (val & (1 << 6)) == 0)
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if ((val >= 0) && (val & (1 << 6)))
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i2c_smbus_write_byte_data(client, DS1337_REG_HOUR,
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val | (1 << 6));
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val & 0x3f);
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}
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static int ds1337_detach_client(struct i2c_client *client)
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