Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
hwmon: (ina238) Stop using the shunt voltage register
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>
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drivers/hwmon/ina238.c
+1
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drivers/hwmon/ina238.c
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static int ina228_read_voltage(struct ina238_data *data, int channel, long *val)
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{
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-
int reg = channel ? INA238_BUS_VOLTAGE : INA238_SHUNT_VOLTAGE;
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+
int reg = channel ? INA238_BUS_VOLTAGE : INA238_CURRENT;
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u32 lsb = data->voltage_lsb[channel];
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u32 factor = NUNIT_PER_MUNIT;
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int err, regval;