linux-kernel - [PATCH v1] ARM: dts: meson: drop iio-hwmon in favour of generic-adc-thermal

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Message-ID: <20251108211503.1578711-1-martin.blumenstingl@googlemail.com>
Date: Sat,  8 Nov 2025 22:15:03 +0100
From: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To: linux-amlogic@...ts.infradead.org
Cc: linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	neil.armstrong@...aro.org,
	Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Subject: [PATCH v1] ARM: dts: meson: drop iio-hwmon in favour of generic-adc-thermal

Commit 85b21fdec906e ("thermal/drivers/generic-adc: Register thermal
zones as hwmon sensors") made "generic-adc-thermal" also register hwmon
attributes. That means we now have the temperature sensor shown twice:
- once from iio-hwmon
- and another time from generic-adc-thermal

We need the latter for SoC temperature control, so simply drop the
former so userspace doesn't see duplicate sensors. Also
generic-adc-thermal provides a better name to userspace
("soc_thermal-virtual-0") than iio_hwmon.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
---
 arch/arm/boot/dts/amlogic/meson.dtsi | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/arm/boot/dts/amlogic/meson.dtsi b/arch/arm/boot/dts/amlogic/meson.dtsi
index 28ec2c821cdc..6792377b2841 100644
--- a/arch/arm/boot/dts/amlogic/meson.dtsi
+++ b/arch/arm/boot/dts/amlogic/meson.dtsi
@@ -12,11 +12,6 @@ / {
 	#size-cells = <1>;
 	interrupt-parent = <&gic>;
 
-	iio-hwmon {
-		compatible = "iio-hwmon";
-		io-channels = <&saradc 8>;
-	};
-
 	soc {
 		compatible = "simple-bus";
 		#address-cells = <1>;
-- 
2.51.2