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dt-bindings: interrupt-controller: stm32-exti: Add irq mapping to parent

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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.

To avoid that use the interrupts-extended property to list, for each EXTI
event, the associated parent interrupt.

Co-developed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20240415134926.1254428-3-antonio.borneo@foss.st.com
This commit is contained in:
Antonio Borneo 2024-04-15 15:49:17 +02:00 committed by Thomas Gleixner
parent 8661327f80
commit e9c17d91e6
1 changed files with 16 additions and 1 deletions
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17
Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml
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@ -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>;