iio: adc: ad7124: Enable internal reference (11d7c8d3) · Commits · 戴 / test

When the internal reference was selected by a channel it was not enabled. This patch fixes that and enables it. Fixes: ("iio: adc: Add ad7124 support") Signed-off-by:

Mircea Caprioru <mircea.caprioru@analog.com> Cc: <Stable@vger.kernel.org> Signed-off-by:

Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/adc/ad7124.c

+6 −1

Original line number	Diff line number	Diff line
		@@ -39,6 +39,8 @@
		#define AD7124_STATUS_POR_FLAG_MSK BIT(4)

		/* AD7124_ADC_CONTROL */
		#define AD7124_ADC_CTRL_REF_EN_MSK BIT(8)
		#define AD7124_ADC_CTRL_REF_EN(x) FIELD_PREP(AD7124_ADC_CTRL_REF_EN_MSK, x)
		#define AD7124_ADC_CTRL_PWR_MSK GENMASK(7, 6)
		#define AD7124_ADC_CTRL_PWR(x) FIELD_PREP(AD7124_ADC_CTRL_PWR_MSK, x)
		#define AD7124_ADC_CTRL_MODE_MSK GENMASK(5, 2)
		@@ -424,7 +426,10 @@ static int ad7124_init_channel_vref(struct ad7124_state *st,
		break;
		case AD7124_INT_REF:
		st->channel_config[channel_number].vref_mv = 2500;
		break;
		st->adc_control &= ~AD7124_ADC_CTRL_REF_EN_MSK;
		st->adc_control \|= AD7124_ADC_CTRL_REF_EN(1);
		return ad_sd_write_reg(&st->sd, AD7124_ADC_CONTROL,
		2, st->adc_control);
		default:
		dev_err(&st->sd.spi->dev, "Invalid reference %d\n", refsel);
		return -EINVAL;

Admin message