iio:adc:twl6030: Enable measurement of VAC

akemnade · jic23 · commit bffb7d9d1a3d · 2022-12-28T17:20:04.000Z
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: 1696f36 ("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>
diff --git 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");

Original file line number	Diff line number	Diff line change
`@@ -952,7 +952,7 @@ static int twl6030_gpadc_probe(struct platform_device *pdev)`
`952`	`952`	`}`
`953`	`953`
`954`	`954`	`ret = twl_i2c_write_u8(TWL6030_MODULE_ID0,`
`955`		`- VBAT_MEAS \| BB_MEAS \| BB_MEAS,`
	`955`	`+ VBAT_MEAS \| BB_MEAS \| VAC_MEAS,`
`956`	`956`	`TWL6030_MISC1);`
`957`	`957`	`if (ret < 0) {`
`958`	`958`	`dev_err(dev, "failed to wire up inputs\n");`