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hwmon: (ina238) Stop using the shunt voltage register

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Since the value of the current register and the value of the shunt register
now match each other, it is no longer necessary to read the shunt voltage
register in the first place. Read the current register instead and use it
to calculate the shunt voltage.

Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz> # INA780
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2025-09-03 16:08:03 -07:00
parent bcac89eebe
commit b7bce92f28
1 changed files with 1 additions and 1 deletions
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2
drivers/hwmon/ina238.c
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@ -218,7 +218,7 @@ static int ina238_read_field_s20(const struct i2c_client *client, u8 reg, s32 *v
static int ina228_read_voltage(struct ina238_data *data, int channel, long *val)
{
int reg = channel ? INA238_BUS_VOLTAGE : INA238_SHUNT_VOLTAGE;
int reg = channel ? INA238_BUS_VOLTAGE : INA238_CURRENT;
u32 lsb = data->voltage_lsb[channel];
u32 factor = NUNIT_PER_MUNIT;
int err, regval;