Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 3.18 13/16] iio: adc: vf610_adc: Fix VALT selection value for REFSEL bits | Date | Mon, 14 Aug 2017 18:18:22 -0700 |
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3.18-stable review patch. If anyone has any objections, please let me know.
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From: Stefan-Gabriel Mirea <stefan-gabriel.mirea@nxp.com>
commit d466d3c1217406b14b834335b5b4b33c0d45bd09 upstream.
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: a775427632fd ("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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/iio/adc/vf610_adc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/iio/adc/vf610_adc.c +++ b/drivers/iio/adc/vf610_adc.c @@ -71,7 +71,7 @@ #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
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