[PATCH 07/10] ARM: dts: stm32: adopt generic iio bindings for adc channels on emstamp-argon

[Olivier Moysan]

Use STM32 ADC generic bindings instead of legacy bindings on
emtrion GmbH Argon boards.

The STM32 ADC specific binding to declare channels has been deprecated,
hence adopt the generic IIO channels bindings, instead.
The STM32MP151 device tree now exposes internal channels using the
generic binding. This makes the change mandatory here to avoid a mixed
use of legacy and generic binding, which is not supported by the driver.

Signed-off-by: Olivier Moysan <olivier.moysan at foss.st.com>
---
 arch/arm/boot/dts/stm32mp157c-emstamp-argon.dtsi | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/stm32mp157c-emstamp-argon.dtsi b/arch/arm/boot/dts/stm32mp157c-emstamp-argon.dtsi
index 7d11c50b9e40..8b1f1ebd13f9 100644
--- a/arch/arm/boot/dts/stm32mp157c-emstamp-argon.dtsi
+++ b/arch/arm/boot/dts/stm32mp157c-emstamp-argon.dtsi
@@ -102,9 +102,11 @@ &adc {
 	adc1: adc at 0 {
 		pinctrl-names = "default";
 		pinctrl-0 = <&adc1_in6_pins_a>;
-		st,min-sample-time-nsecs = <5000>;
-		st,adc-channels = <6>;
 		status = "disabled";
+		channel at 6 {
+			reg = <6>;
+			st,min-sample-time-ns = <5000>;
+		};
 	};
 
 	adc2: adc at 100 {
-- 
2.25.1