diff options
| author |   Chris Packham <chris.packham@alliedtelesis.co.nz> | 2022-03-23 16:40:56 +1300 |
|---|---|---|
| committer |   Guenter Roeck <linux@roeck-us.net> | 2022-05-22 11:32:31 -0700 |
| commit | d45cd804280d5cf43d539f49f671ea26552cedc3 (patch) | |
| tree | 879a46a8772d360fe901dba9c0cd98cc83ede9ec /drivers/hwmon | |
| parent | hwmon: (adt7475) Add support for pin configuration (diff) | |
| download | linux-dev-d45cd804280d5cf43d539f49f671ea26552cedc3.tar.xz linux-dev-d45cd804280d5cf43d539f49f671ea26552cedc3.zip | |
hwmon: (adt7475) Use enum chips when loading attenuator settings
Make use of enum chips and use a switch statement in load_attenuators()
so that the compiler can tell us if we've failed to cater for a
supported chip.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220323034056.260455-4-chris.packham@alliedtelesis.co.nz
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/adt7475.c | 23 |
1 files changed, 10 insertions, 13 deletions
diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c index 6de501de41b2..ac480e6e4818 100644 --- a/drivers/hwmon/adt7475.c +++ b/drivers/hwmon/adt7475.c @@ -1569,12 +1569,12 @@ static int set_property_bit(const struct i2c_client *client, char *property, return ret; } -static int load_attenuators(const struct i2c_client *client, int chip, +static int load_attenuators(const struct i2c_client *client, enum chips chip, struct adt7475_data *data) { - int ret; - - if (chip == adt7476 || chip == adt7490) { + switch (chip) { + case adt7476: + case adt7490: set_property_bit(client, "adi,bypass-attenuator-in0", &data->config4, 4); set_property_bit(client, "adi,bypass-attenuator-in1", @@ -1584,18 +1584,15 @@ static int load_attenuators(const struct i2c_client *client, int chip, set_property_bit(client, "adi,bypass-attenuator-in4", &data->config4, 7); - ret = i2c_smbus_write_byte_data(client, REG_CONFIG4, - data->config4); - if (ret < 0) - return ret; - } else if (chip == adt7473 || chip == adt7475) { + return i2c_smbus_write_byte_data(client, REG_CONFIG4, + data->config4); + case adt7473: + case adt7475: set_property_bit(client, "adi,bypass-attenuator-in1", &data->config2, 5); - ret = i2c_smbus_write_byte_data(client, REG_CONFIG2, - data->config2); - if (ret < 0) - return ret; + return i2c_smbus_write_byte_data(client, REG_CONFIG2, + data->config2); } return 0; |