The mapping of EXTI events to its parent interrupt controller is
both SoC and instance dependent.
The current implementation requires adding a new mapping table to
the driver's code and a new compatible for each new EXTI instance.
Use the interrupts-extended property to list, for each EXTI event,
the associated parent interrupt.
Co-developed-by: Fabrice Gasnier <fabrice.gasnier@xxxxxxxxxxx>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@xxxxxxxxxxx>
Signed-off-by: Antonio Borneo <antonio.borneo@xxxxxxxxxxx>
---
.../interrupt-controller/st,stm32-exti.yaml | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml b/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml
index 00c10a8258f13..9967e57b449b0 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml
@@ -89,8 +89,23 @@ examples:
reg = <0x5000d000 0x400>;
};
+ - |
//Example 2
- exti2: interrupt-controller@40013c00 {
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ exti2: interrupt-controller@5000d000 {
+ compatible = "st,stm32mp1-exti", "syscon";
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ reg = <0x5000d000 0x400>;
+ interrupts-extended =
+ <&intc GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+ <0>,
+ <&intc GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ - |
+ //Example 3
+ exti3: interrupt-controller@40013c00 {
compatible = "st,stm32-exti";
interrupt-controller;
#interrupt-cells = <2>;
--
2.34.1
