[PATCH] dt-bindings: serial: stm32: add examples

[Valentin Caron]

From: Valentin Caron <valentin.caron at st.com>

Add examples to show more use cases :
 - uart2 with hardware flow control
 - uart4 without flow control

Signed-off-by: Valentin Caron <valentin.caron at foss.st.com>
---
 .../bindings/serial/st,stm32-uart.yaml        | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml b/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml
index 06d5f251ec88..3a4aab5d1862 100644
--- a/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml
@@ -82,6 +82,26 @@ additionalProperties: false
 examples:
   - |
     #include <dt-bindings/clock/stm32mp1-clks.h>
+
+    usart4: serial at 40004c00 {
+      compatible = "st,stm32-uart";
+      reg = <0x40004c00 0x400>;
+      interrupts = <52>;
+      clocks = <&clk_pclk1>;
+      pinctrl-names = "default";
+      pinctrl-0 = <&pinctrl_usart4>;
+    };
+
+    usart2: serial at 40004400 {
+      compatible = "st,stm32-uart";
+      reg = <0x40004400 0x400>;
+      interrupts = <38>;
+      clocks = <&clk_pclk1>;
+      st,hw-flow-ctrl;
+      pinctrl-names = "default";
+      pinctrl-0 = <&pinctrl_usart2 &pinctrl_usart2_rtscts>;
+    };
+
     usart1: serial at 40011000 {
       compatible = "st,stm32-uart";
       reg = <0x40011000 0x400>;
-- 
2.17.1