Fix issue when exposing xadc via iio-hwmon by adding missing

OF: /iio_hwmon: could not get #io-channel-cells for
/amba/adc@f8007100

Signed-off-by: Moritz Fischer <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Sören Brinkmann <[email protected]>
Cc: Julia Cartwright <[email protected]>
Cc: [email protected]
---
 arch/arm/boot/dts/zynq-7000.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/zynq-7000.dtsi b/arch/arm/boot/dts/zynq-7000.dtsi
index f3ac9bf..98233a8 100644
--- a/arch/arm/boot/dts/zynq-7000.dtsi
+++ b/arch/arm/boot/dts/zynq-7000.dtsi
@@ -72,6 +72,7 @@
                        interrupts = <0 7 4>;
                        interrupt-parent = <&intc>;
                        clocks = <&clkc 12>;
+                       #io-channel-cells = <1>;
                };
 
                can0: can@e0008000 {
-- 
2.7.4

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