ARM: dts: stm32: add uart7 support to stm32mp15xx-dkx boards

Adds uart7 node to stm32mp15xx-dkx and uart7 alias to stm32mp157a-dk1 and
stm32mp157c-dk2 boards. uart7 pins are connected to Arduino connector.
uart7 is disabled by default.

Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

diff --git a/arch/arm/boot/dts/stm32mp157a-dk1.dts b/arch/arm/boot/dts/stm32mp157a-dk1.dts
index 65ee61b..4c8be9c 100644 (file)
--- a/arch/arm/boot/dts/stm32mp157a-dk1.dts
+++ b/arch/arm/boot/dts/stm32mp157a-dk1.dts
@@ -19,6 +19,7 @@
                ethernet0 = &ethernet0;
                serial0 = &uart4;
                serial1 = &usart3;
+               serial2 = &uart7;
        };
 
        chosen {

diff --git a/arch/arm/boot/dts/stm32mp157c-dk2.dts b/arch/arm/boot/dts/stm32mp157c-dk2.dts
index fb690a8..ffbae4a 100644 (file)
--- a/arch/arm/boot/dts/stm32mp157c-dk2.dts
+++ b/arch/arm/boot/dts/stm32mp157c-dk2.dts
@@ -20,6 +20,7 @@
                ethernet0 = &ethernet0;
                serial0 = &uart4;
                serial1 = &usart3;
+               serial2 = &uart7;
        };
 
        chosen {

diff --git a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
index c562e18..493f3b1 100644 (file)
--- a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
+++ b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
@@ -591,6 +591,14 @@
        status = "okay";
 };
 
+&uart7 {
+       pinctrl-names = "default", "sleep", "idle";
+       pinctrl-0 = <&uart7_pins_c>;
+       pinctrl-1 = <&uart7_sleep_pins_c>;
+       pinctrl-2 = <&uart7_idle_pins_c>;
+       status = "disabled";
+};
+
 &usart3 {
        pinctrl-names = "default", "sleep", "idle";
        pinctrl-0 = <&usart3_pins_c>;