diff options
| author | Jean Delvare <khali@linux-fr.org> | 2013-05-04 16:49:36 +0400 |
|---|---|---|
| committer | Jean Delvare <khali@endymion.delvare> | 2013-05-04 16:49:36 +0400 |
| commit | 8a5c5cc61748642a1276ef94611e21a60f0796ab (patch) | |
| tree | 7f94d4ed22b4e43489a4a1f4183cce724e081be9 /drivers/hwmon/lm75.c | |
| parent | 1db772216f48978d5146b858586f6178433aad38 (diff) | |
| download | linux-8a5c5cc61748642a1276ef94611e21a60f0796ab.tar.xz | |
hwmon: (lm75) Per-chip configuration register initialization
There is no standard for the configuration register bits of LM75-like
chips. We shouldn't blindly clear bits setting the resolution as they
are either unused or used for something else on some of the supported
chips.
So, switch to per-chip configuration initialization. This will allow
for better tuning later, for example using more resolution bits when
available.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/lm75.c')
| -rw-r--r-- | drivers/hwmon/lm75.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c index 291edfff55bf..4670fbef6a9c 100644 --- a/drivers/hwmon/lm75.c +++ b/drivers/hwmon/lm75.c @@ -167,8 +167,28 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id) * Then tweak to be more precise when appropriate. */ set_mask = 0; - clr_mask = (1 << 0) /* continuous conversions */ - | (1 << 6) | (1 << 5); /* 9-bit mode */ + clr_mask = LM75_SHUTDOWN; /* continuous conversions */ + + switch (id->driver_data) { + case adt75: + clr_mask |= 1 << 5; /* not one-shot mode */ + break; + case ds1775: + case ds75: + case stds75: + clr_mask |= 3 << 5; /* 9-bit mode */ + break; + case mcp980x: + case tmp100: + case tmp101: + case tmp105: + case tmp175: + case tmp275: + case tmp75: + clr_mask |= 3 << 5; /* 9-bit mode */ + clr_mask |= 1 << 7; /* not one-shot mode */ + break; + } /* configure as specified */ status = lm75_read_value(client, LM75_REG_CONF); |