iio: adc: meson-saradc: do not use meson_sar_adc_iio_channels directly
authorMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Mon, 24 Sep 2018 22:13:25 +0000 (00:13 +0200)
committerJonathan Cameron <Jonathan.Cameron@huawei.com>
Sat, 29 Sep 2018 11:48:22 +0000 (12:48 +0100)
In the future we may support two different channel sets:
- one which includes the voltage pads and the temperature sensor output
  (for Meson8, Meson8b and Meson8m2)
- one which only includes the voltage pads (GXBB, GXL, GXM and AXG)

Channel 7 has a special function on all of these platforms. However,
since we will have different channel array definitions we want our code
to always use whatever channels struct iio_dev uses.

No functional changes for now. This is the preparation for adding
temperature sensor support to this driver.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
drivers/iio/adc/meson_saradc.c

index 1c4ba83c0725badfe04df69bc01b6b1b8da0fb37..809d1230be349a9b11c4c6f097dfd69754970279 100644 (file)
@@ -854,7 +854,7 @@ static int meson_sar_adc_calib(struct iio_dev *indio_dev)
        meson_sar_adc_set_chan7_mux(indio_dev, CHAN7_MUX_VDD_DIV4);
        usleep_range(10, 20);
        ret = meson_sar_adc_get_sample(indio_dev,
-                                      &meson_sar_adc_iio_channels[7],
+                                      &indio_dev->channels[7],
                                       MEAN_AVERAGING, EIGHT_SAMPLES, &value0);
        if (ret < 0)
                goto out;
@@ -862,7 +862,7 @@ static int meson_sar_adc_calib(struct iio_dev *indio_dev)
        meson_sar_adc_set_chan7_mux(indio_dev, CHAN7_MUX_VDD_MUL3_DIV4);
        usleep_range(10, 20);
        ret = meson_sar_adc_get_sample(indio_dev,
-                                      &meson_sar_adc_iio_channels[7],
+                                      &indio_dev->channels[7],
                                       MEAN_AVERAGING, EIGHT_SAMPLES, &value1);
        if (ret < 0)
                goto out;