[PATCH 9/9] ARM: dts: stm32: adapt i2s node to spi binding on stm32mp15xx-dk

[Olivier Moysan]

In DT check utility, the spi2s2 node is identified as an spi node.
The check_spi_bus_reg() function issues a warning "missing or empty
reg property" if reg property is not defined in child nodes.
Add reg property to STM32 I2S port node on STM32MP15XX-DK board
to match this requirement and add related unit-address in node name.

Signed-off-by: Olivier Moysan <olivier.moysan at foss.st.com>
---
 arch/arm/boot/dts/stm32mp15xx-dkx.dtsi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
index ff7dabfeb322..36187089c073 100644
--- a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
+++ b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
@@ -437,7 +437,8 @@
 	pinctrl-1 = <&i2s2_sleep_pins_a>;
 	status = "okay";
 
-	i2s2_port: port {
+	i2s2_port: port at 0 {
+		reg = <0>;
 		i2s2_endpoint: endpoint {
 			remote-endpoint = <&sii9022_tx_endpoint>;
 			format = "i2s";
-- 
2.17.1