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power: supply: max17040: Correct voltage reading

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According to the datasheet available at (1), the bottom four
bits are always zero and the actual voltage is 1.25x this value
in mV.  Since the kernel API specifies that voltages should be in
uV, it should report 1250x the shifted value.

1) https://datasheets.maximintegrated.com/en/ds/MAX17040-MAX17041.pdf

Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Jonathan Bakker 2020-05-04 15:12:58 -07:00 committed by Sebastian Reichel
parent 29e9eff40f
commit 0383024f81
1 changed files with 1 additions and 1 deletions
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2
drivers/power/supply/max17040_battery.c
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@ -126,7 +126,7 @@ static void max17040_get_vcell(struct i2c_client *client)
vcell = max17040_read_reg(client, MAX17040_VCELL);
chip->vcell = vcell;
chip->vcell = (vcell >> 4) * 1250;
}
static void max17040_get_soc(struct i2c_client *client)