From: Alexandre Torgue <alexandre.torgue@st.com>
To: Thomas Gleixner <tglx@linutronix.de>,
Jason Cooper <jason@lakedaemon.net>,
Marc Zyngier <marc.zyngier@arm.com>,
Linus Walleij <linus.walleij@linaro.org>
Cc: <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <linux-gpio@vger.kernel.org>,
<marex@denx.de>
Subject: [PATCH v2 1/2] irqchip/stm32: Add irq retrigger support
Date: Tue, 18 Feb 2020 14:12:17 +0100 [thread overview]
Message-ID: <20200218131218.10789-2-alexandre.torgue@st.com> (raw)
In-Reply-To: <20200218131218.10789-1-alexandre.torgue@st.com>
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>
diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c
index e00f2fa27f00..c971d115edb4 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 irq_chip_retrigger_hierarchy(d);
+}
+
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,
--
2.17.1
next prev parent reply other threads:[~2020-02-18 13:13 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-18 13:12 [PATCH v2 0/2] Add GPIO level-sensitive interrupt support Alexandre Torgue
2020-02-18 13:12 ` Alexandre Torgue [this message]
2020-02-18 17:51 ` [PATCH v2 1/2] irqchip/stm32: Add irq retrigger support Marek Vasut
2020-02-19 11:33 ` Alexandre Torgue
2020-02-19 11:43 ` Marc Zyngier
2020-02-19 13:07 ` Alexandre Torgue
2020-02-19 13:13 ` Marc Zyngier
2020-02-19 13:17 ` Alexandre Torgue
2020-02-18 13:12 ` [PATCH v2 2/2] pinctrl: stm32: Add level interrupt support to gpio irq chip Alexandre Torgue
2020-02-18 17:51 ` Marek Vasut
2020-02-19 11:34 ` Alexandre Torgue
2020-02-19 12:07 ` Marc Zyngier
2020-02-19 12:59 ` Alexandre Torgue
2020-02-18 16:25 ` [PATCH v2 0/2] Add GPIO level-sensitive interrupt support Marek Vasut
2020-02-18 18:10 ` Alexandre Torgue
2020-02-18 18:13 ` Marek Vasut
2020-02-19 9:20 ` Alexandre Torgue
2020-02-19 17:24 ` Marek Vasut
2020-02-20 13:09 ` Alexandre Torgue
2020-02-21 16:41 ` Marek Vasut
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