Commit d466d3c1 authored Jul 06, 2017 by Stefan-Gabriel Mirea Committed by Jonathan Cameron Jul 06, 2017

iio: adc: vf610_adc: Fix VALT selection value for REFSEL bits

In order to select the alternate voltage reference pair (VALTH/VALTL), the
right value for the REFSEL field in the ADCx_CFG register is "01", leading
to 0x800 as register mask. See section 8.2.6.4 in the reference manual[1].

[1] http://www.nxp.com/docs/en/reference-manual/VFXXXRM.pdf



Fixes: a7754276 ("iio:adc:imx: add Freescale Vybrid vf610 adc driver")
Signed-off-by: Stefan-Gabriel Mirea <stefan-gabriel.mirea@nxp.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

parent a7b8829d

drivers/iio/adc/vf610_adc.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -77,7 +77,7 @@
		#define VF610_ADC_ADSTS_MASK 0x300
		#define VF610_ADC_ADLPC_EN 0x80
		#define VF610_ADC_ADHSC_EN 0x400
		#define VF610_ADC_REFSEL_VALT 0x100
		#define VF610_ADC_REFSEL_VALT 0x800
		#define VF610_ADC_REFSEL_VBG 0x1000
		#define VF610_ADC_ADTRG_HARD 0x2000
		#define VF610_ADC_AVGS_8 0x4000