linux-kernel - [PATCH v2 2/5] pinctrl: stm32: Manage irq affinity settings

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Message-ID: <20250610143042.295376-3-antonio.borneo@foss.st.com>
Date: Tue, 10 Jun 2025 16:30:39 +0200
From: Antonio Borneo <antonio.borneo@...s.st.com>
To: Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Alexandre Torgue
	<alexandre.torgue@...s.st.com>,
        <linux-kernel@...r.kernel.org>, <linux-gpio@...r.kernel.org>
CC: Antonio Borneo <antonio.borneo@...s.st.com>,
        Maxime Coquelin
	<mcoquelin.stm32@...il.com>,
        Clément Le Goffic
	<clement.legoffic@...s.st.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        Cheick Traore
	<cheick.traore@...s.st.com>
Subject: [PATCH v2 2/5] pinctrl: stm32: Manage irq affinity settings

From: Cheick Traore <cheick.traore@...s.st.com>

Trying to set the affinity of the interrupts associated to stm32
pinctrl results in a write error.

Fill struct irq_chip::irq_set_affinity to use the default helper
function.

Signed-off-by: Cheick Traore <cheick.traore@...s.st.com>
Signed-off-by: Antonio Borneo <antonio.borneo@...s.st.com>
---
 drivers/pinctrl/stm32/pinctrl-stm32.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c
index 3abf47e31c019..e0e3e649976b8 100644
--- a/drivers/pinctrl/stm32/pinctrl-stm32.c
+++ b/drivers/pinctrl/stm32/pinctrl-stm32.c
@@ -413,6 +413,7 @@ static struct irq_chip stm32_gpio_irq_chip = {
 	.irq_set_wake	= irq_chip_set_wake_parent,
 	.irq_request_resources = stm32_gpio_irq_request_resources,
 	.irq_release_resources = stm32_gpio_irq_release_resources,
+	.irq_set_affinity = IS_ENABLED(CONFIG_SMP) ? irq_chip_set_affinity_parent : NULL,
 };
 
 static int stm32_gpio_domain_translate(struct irq_domain *d,
-- 
2.34.1