power: supply: ltc2941-battery-gauge: Fix temperature units
[ Upstream commitpull/10/headdde5953f05
] Temperature is measured in tenths of degree Celsius. Fixes:085bc24d15
("Add LTC2941/LTC2943 Battery Gauge Driver") Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parent
72662ff1cf
commit
13b520688d
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@ -316,15 +316,15 @@ static int ltc294x_get_temperature(const struct ltc294x_info *info, int *val)
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if (info->id == LTC2942_ID) {
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reg = LTC2942_REG_TEMPERATURE_MSB;
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value = 60000; /* Full-scale is 600 Kelvin */
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value = 6000; /* Full-scale is 600 Kelvin */
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} else {
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reg = LTC2943_REG_TEMPERATURE_MSB;
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value = 51000; /* Full-scale is 510 Kelvin */
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value = 5100; /* Full-scale is 510 Kelvin */
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}
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ret = ltc294x_read_regs(info->client, reg, &datar[0], 2);
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value *= (datar[0] << 8) | datar[1];
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/* Convert to centidegrees */
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*val = value / 0xFFFF - 27215;
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/* Convert to tenths of degree Celsius */
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*val = value / 0xFFFF - 2722;
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return ret;
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}
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