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pinctrl: amd: Use generic_handle_irq_safe()

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On PREEMPT_RT enabled kernels the demultiplex interrupt handler is force
threaded and runs with interrupts enabled. The invocation of
generic_handle_domain_irq() with interrupts enabled triggers a lockdep
warning due to a non-irq safe lock acquisition.

Instead of disabling interrupts on the driver level, use
generic_handle_domain_irq_safe().

[ tglx: Split out from combo patch ]

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/YnkfWFzvusFFktSt@linutronix.de
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215954
This commit is contained in:
Sebastian Andrzej Siewior 2022-09-19 14:42:54 +02:00 committed by Thomas Gleixner
parent 6a164c6469
commit f460c70125
1 changed files with 1 additions and 1 deletions
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2
drivers/pinctrl/pinctrl-amd.c
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@ -639,7 +639,7 @@ static bool do_amd_gpio_irq_handler(int irq, void *dev_id)
if (!(regval & PIN_IRQ_PENDING) ||
!(regval & BIT(INTERRUPT_MASK_OFF)))
continue;
generic_handle_domain_irq(gc->irq.domain, irqnr + i);
generic_handle_domain_irq_safe(gc->irq.domain, irqnr + i);
/* Clear interrupt.
* We must read the pin register again, in case the