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From: Liam Beguin <liambeguin@gmail.com>
To: liambeguin@gmail.com, jdelvare@suse.com, linux@roeck-us.net,
	jic23@kernel.org, lars@metafoo.de, pmeerw@pmeerw.net
Cc: linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
	robh+dt@kernel.org
Subject: [RFC PATCH v1 1/2] hwmon: (iio_hwmon) optionally force iio channel type
Date: Sun, 16 May 2021 00:43:14 -0400	[thread overview]
Message-ID: <20210516044315.116290-2-liambeguin@gmail.com> (raw)
In-Reply-To: <20210516044315.116290-1-liambeguin@gmail.com>

Add a devicetree binding to optionally force a different IIO channel
type.

This is useful in cases where ADC channels are connected to a circuit
that represent another unit such as a temperature or a current.

`channel-types` was chosen instead of `io-channel-types` as this is not
part of the iio consumer bindings.

Signed-off-by: Liam Beguin <liambeguin@gmail.com>
---
 drivers/hwmon/iio_hwmon.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/hwmon/iio_hwmon.c b/drivers/hwmon/iio_hwmon.c
index 580a7d125b88..365ea2359b22 100644
--- a/drivers/hwmon/iio_hwmon.c
+++ b/drivers/hwmon/iio_hwmon.c
@@ -109,6 +109,8 @@ static int iio_hwmon_probe(struct platform_device *pdev)
 		if (ret < 0)
 			return ret;
 
+		of_property_read_u32_index(dev->of_node, "channel-types",
+					   i, &type);
 		switch (type) {
 		case IIO_VOLTAGE:
 			n = in_i++;
-- 
2.30.1.489.g328c10930387


  reply	other threads:[~2021-05-16  4:43 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-16  4:43 [RFC PATCH v1 0/2] hwmon: (iio_hwmon) optionally force iio channel type Liam Beguin
2021-05-16  4:43 ` Liam Beguin [this message]
2021-05-16  4:43 ` [RFC PATCH v1 2/2] dt-bindings: hwmon: add iio-hwmon bindings Liam Beguin
2021-05-16  8:56 ` [RFC PATCH v1 0/2] hwmon: (iio_hwmon) optionally force iio channel type Guenter Roeck
2021-05-16 14:55   ` Liam Beguin
2021-05-16  9:06 ` Jonathan Cameron
2021-05-16 15:02   ` Liam Beguin
2021-05-16 15:54     ` Guenter Roeck
2021-05-16 16:26       ` Jonathan Cameron
2021-05-16 18:14         ` Liam Beguin
2021-05-16 23:10           ` Guenter Roeck

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