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

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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: a775427632 ("iio:adc:imx: add Freescale Vybrid vf610 adc driver")
Signed-off-by: Stefan-Gabriel Mirea <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
This commit is contained in:
Stefan-Gabriel Mirea 2017-07-06 10:06:41 +01:00 • committed by Jonathan Cameron
commit d466d3c121
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/adc/vf610_adc.c
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@ -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