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| author | Alexandre Torgue <alexandre.torgue@st.com> | 2020-02-19 15:32:28 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-03-08 14:25:45 +0000 |
| commit | 25591d4c6459ce416a319832ce806be7b86183dc (patch) | |
| tree | e8d15f4ece4a9ebe8cec35ff594eb5e0e6cf1f40 /drivers/irqchip | |
| parent | a15111075a847432b90e1534095b195aac8d9ec2 (diff) | |
| download | linux-25591d4c6459ce416a319832ce806be7b86183dc.tar.gz | |
irqchip/stm32: Add irq retrigger support
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: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Tested-by: Marek Vasut <marex@denx.de> Link: https://lore.kernel.org/r/20200219143229.18084-2-alexandre.torgue@st.com
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-stm32-exti.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c index e00f2fa27f00..faa8482c8246 100644 --- a/drivers/irqchip/irq-stm32-exti.c +++ b/drivers/irqchip/irq-stm32-exti.c @@ -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, |