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bcma: gpio: 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_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
This commit is contained in:
Sebastian Andrzej Siewior 2022-09-19 14:46:16 +02:00 committed by Thomas Gleixner
parent 118c3ba24d
commit 94ec234a16
1 changed files with 1 additions and 1 deletions
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2
drivers/bcma/driver_gpio.c
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@ -115,7 +115,7 @@ static irqreturn_t bcma_gpio_irq_handler(int irq, void *dev_id)
return IRQ_NONE;
for_each_set_bit(gpio, &irqs, gc->ngpio)
generic_handle_irq(irq_find_mapping(gc->irq.domain, gpio));
generic_handle_domain_irq_safe(gc->irq.domain, gpio);
bcma_chipco_gpio_polarity(cc, irqs, val & irqs);
return IRQ_HANDLED;