ARM: dts: mxs: Add iio-hwmon to mx28 soc

This allows to read the SoC on-die temperature sensor available on the LRADC by
using:
 cat /sys/class/hwmon/hwmon0/device/temp1_input

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index 2575dd8342243f045906b6cc4de76a17f75f33ed..f60ed820b40a53fc18ddc2bb57aa1407c45b0b32 100644 (file)
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -1182,4 +1182,9 @@ etn_switch: switch@800f8000 {
                        status = "disabled";
                };
        };
+
+       iio_hwmon {
+               compatible = "iio-hwmon";
+               io-channels = <&lradc 8>;
+       };
 };