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iio:adc:twl6030: Enable measurement of VAC

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[ Upstream commit bffb7d9d1a ]

VAC needs to be wired up to produce proper measurements,
without this change only near zero values are reported.

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Fixes: 1696f36482 ("iio: twl6030-gpadc: TWL6030, TWL6032 GPADC driver")
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Link: https://lore.kernel.org/r/20221217221305.671117-1-andreas@kemnade.info
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Andreas Kemnade 2022-12-17 23:13:05 +01:00 committed by Greg Kroah-Hartman
parent e4c3ea9b60
commit 91ad3104b2
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/adc/twl6030-gpadc.c
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@ -952,7 +952,7 @@ static int twl6030_gpadc_probe(struct platform_device *pdev)
}
ret = twl_i2c_write_u8(TWL6030_MODULE_ID0,
VBAT_MEAS | BB_MEAS | BB_MEAS,
VBAT_MEAS | BB_MEAS | VAC_MEAS,
TWL6030_MISC1);
if (ret < 0) {
dev_err(dev, "failed to wire up inputs\n");