linux-kernel - [PATCH] iio:adc:twl6030: Enable measurement of VAC

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Date:   Sat, 17 Dec 2022 23:13:05 +0100
From:   Andreas Kemnade <andreas@...nade.info>
To:     jic23@...nel.org, lars@...afoo.de, andreas@...nade.info,
        paul@...pouillou.net, jiasheng@...as.ac.cn,
        oleksandr.kozaruk@...com, gg@...mlogic.co.uk, balajitk@...com,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     kernel test robot <lkp@...el.com>,
        Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] iio:adc:twl6030: Enable measurement of VAC

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@...el.com>
Reported-by: Julia Lawall <julia.lawall@...6.fr>
Fixes: 1696f36482e7 ("iio: twl6030-gpadc: TWL6030, TWL6032 GPADC driver")
Signed-off-by: Andreas Kemnade <andreas@...nade.info>
---
 drivers/iio/adc/twl6030-gpadc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/twl6030-gpadc.c b/drivers/iio/adc/twl6030-gpadc.c
index 40438e5b4970..32873fb5f367 100644
--- a/drivers/iio/adc/twl6030-gpadc.c
+++ b/drivers/iio/adc/twl6030-gpadc.c
@@ -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");
-- 
2.30.2