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iio: adc: axp288: Add TS bias override for Haier HV103H

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The Haier HV103H firmware configures the AXP288 TS pin bias
current to 60 uA. This causes the battery temperature reading to
cross the charging temperature threshold under load, incorrectly
stopping battery charging.

Setting the TS bias current to 80 uA fixes the temperature
measurement and prevents charging from being incorrectly disabled.

Add a DMI quirk to use the 80 uA TS bias current on the Haier
HV103H.

Fixes: 9bcf15f75c ("iio: adc: axp288: Fix TS-pin handling")
Fixes: 048058399f ("iio: adc: axp288: Override TS pin bias current for some models") # Add necessary infrastructure
Signed-off-by: Vladyslav Ivashchenko <cactucatu4eckuu@gmail.com>
Reviewed-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
This commit is contained in:
Vladyslav Ivashchenko 2026-09-04 15:31:55 +02:00 committed by Jonathan Cameron
parent da7c937e0a
commit 0f300db7b7
1 changed files with 8 additions and 0 deletions
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8
drivers/iio/adc/axp288_adc.c
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@ -207,6 +207,14 @@ static const struct dmi_system_id axp288_adc_ts_bias_override[] = {
},
.driver_data = (void *)(uintptr_t)AXP288_ADC_TS_BIAS_80UA,
},
{
/* Haier HV103H */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Haier"),
DMI_MATCH(DMI_PRODUCT_NAME, "HV103H"),
},
.driver_data = (void *)(uintptr_t)AXP288_ADC_TS_BIAS_80UA,
},
{ }
};