irqchip/stm32: Add irq retrigger support (25591d4c) · Commits · 戴 / test

This commit introduces retrigger support for stm32_ext_h chip. It consists to rise the GIC interrupt mapped to an EXTI line. Signed-off-by:

drivers/irqchip/irq-stm32-exti.c

+13 −1

Original line number	Diff line number	Diff line
		@@ -604,12 +604,24 @@ static void stm32_exti_h_syscore_deinit(void)
		unregister_syscore_ops(&stm32_exti_h_syscore_ops);
		}

		static int stm32_exti_h_retrigger(struct irq_data *d)
		{
		struct stm32_exti_chip_data *chip_data = irq_data_get_irq_chip_data(d);
		const struct stm32_exti_bank *stm32_bank = chip_data->reg_bank;
		void __iomem *base = chip_data->host_data->base;
		u32 mask = BIT(d->hwirq % IRQS_PER_BANK);

		writel_relaxed(mask, base + stm32_bank->swier_ofst);

		return 0;
		}

		static struct irq_chip stm32_exti_h_chip = {
		.name = "stm32-exti-h",
		.irq_eoi = stm32_exti_h_eoi,
		.irq_mask = stm32_exti_h_mask,
		.irq_unmask = stm32_exti_h_unmask,
		.irq_retrigger = irq_chip_retrigger_hierarchy,
		.irq_retrigger = stm32_exti_h_retrigger,
		.irq_set_type = stm32_exti_h_set_type,
		.irq_set_wake = stm32_exti_h_set_wake,
		.flags = IRQCHIP_MASK_ON_SUSPEND,