irqchip/stm32mp-exti: Allow building as module

Allow to build the driver as a module by adding the necessarily hooks in
Kconfig and in the driver's code.

Since all the probe dependencies linked to this driver have already been
fixed, remove the not longer relevant 'arch_initcall'.

Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240620083115.204362-7-antonio.borneo@foss.st.com

diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index 978639d10d7527187cc8dd07ac63810f732816fc..cbf49b6404b85ac402cf91f3c612382a2767233f 100644 (file)
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -405,9 +405,13 @@ config PARTITION_PERCPU
        bool
 
 config STM32MP_EXTI
-       bool
-       select IRQ_DOMAIN
+       tristate "STM32MP extended interrupts and event controller"
+       depends on (ARCH_STM32 && !ARM_SINGLE_ARMV7M) || COMPILE_TEST
+       default y
+       select IRQ_DOMAIN_HIERARCHY
        select GENERIC_IRQ_CHIP
+       help
+         Support STM32MP EXTI (extended interrupts and event) controller.
 
 config STM32_EXTI
        bool

diff --git a/drivers/irqchip/irq-stm32mp-exti.c b/drivers/irqchip/irq-stm32mp-exti.c
index 727859e073ea1b54a614d54ed5eb52fc50592b5f..33e0cfdea65452d8f5122e3181430e62d3164ce8 100644 (file)
--- a/drivers/irqchip/irq-stm32mp-exti.c
+++ b/drivers/irqchip/irq-stm32mp-exti.c
@@ -722,15 +722,8 @@ static struct platform_driver stm32mp_exti_driver = {
        },
 };
 
-static int __init stm32mp_exti_arch_init(void)
-{
-       return platform_driver_register(&stm32mp_exti_driver);
-}
-
-static void __exit stm32mp_exti_arch_exit(void)
-{
-       return platform_driver_unregister(&stm32mp_exti_driver);
-}
+module_platform_driver(stm32mp_exti_driver);
 
-arch_initcall(stm32mp_exti_arch_init);
-module_exit(stm32mp_exti_arch_exit);
+MODULE_AUTHOR("Maxime Coquelin <mcoquelin.stm32@gmail.com>");
+MODULE_DESCRIPTION("STM32MP EXTI driver");
+MODULE_LICENSE("GPL");