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[PATCH] hwmon: soften lm75 initialization

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The LM75 initialization is a bit agressive, it arbitrarily reconfigures
the chip. Make it only change the bit it needs. This is a port from
the 2.4 kernel version of the driver (lm_sensors).

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jean Delvare 2005-07-27 21:28:28 +02:00 committed by Greg Kroah-Hartman
parent 17f990c87a
commit e647ecf15e
1 changed files with 6 additions and 2 deletions
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8
drivers/hwmon/lm75.c
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@ -251,8 +251,12 @@ static int lm75_write_value(struct i2c_client *client, u8 reg, u16 value)
static void lm75_init_client(struct i2c_client *client)
{
/* Initialize the LM75 chip */
lm75_write_value(client, LM75_REG_CONF, 0);
int reg;
/* Enable if in shutdown mode */
reg = lm75_read_value(client, LM75_REG_CONF);
if (reg >= 0 && (reg & 0x01))
lm75_write_value(client, LM75_REG_CONF, reg & 0xfe);
}
static struct lm75_data *lm75_update_device(struct device *dev)