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[v2,5/6] meson saradc: add channel labels

Message ID 20230623022334.791026-6-gnstark@sberdevices.ru (mailing list archive)
State New, archived
Headers show
Series meson saradc: add iio channels to read channel 7 mux inputs | expand

Commit Message

George Stark June 23, 2023, 2:20 a.m. UTC 
Add attribute 'label' to all iio channles

Signed-off-by: George Stark <GNStark@sberdevices.ru>
---

Changelog:
v1->v2: update commit message from [1]

[1] https://lore.kernel.org/lkml/20230621062715.455652-3-gnstark@sberdevices.ru/

---
 drivers/iio/adc/meson_saradc.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
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Patch

diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c
index 7ef006650982..e7eb154b151f 100644
--- a/drivers/iio/adc/meson_saradc.c
+++ b/drivers/iio/adc/meson_saradc.c
@@ -1044,8 +1044,20 @@  static int meson_sar_adc_calib(struct iio_dev *indio_dev)
 	return ret;
 }
 
+static int read_label(struct iio_dev *indio_dev,
+		      struct iio_chan_spec const *chan,
+		      char *label)
+{
+	if (chan->type == IIO_TEMP)
+		return sprintf(label, "%s\n", "temp-sensor");
+	if (chan->type == IIO_VOLTAGE)
+		return sprintf(label, "channel-%d\n", chan->channel);
+	return 0;
+}
+
 static const struct iio_info meson_sar_adc_iio_info = {
 	.read_raw = meson_sar_adc_iio_info_read_raw,
+	.read_label = read_label,
 };
 
 static const struct meson_sar_adc_param meson_sar_adc_meson8_param = {