Re: [PATCH 16/23] gpio: nomadik: support shared GPIO IRQs

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]


On Wed, Feb 14, 2024 at 5:24 PM Théo Lebrun <theo.lebrun@xxxxxxxxxxx> wrote:
> Support a single IRQs used by multiple GPIO banks. Change the IRQ
> handler type from a chained handler (as used by gpiolib
> for ->parent_handler) to a threaded IRQ.
> Use a fake raw spinlock to ensure generic_handle_irq() is called in a
> no-irq context. See Documentation/driver-api/gpio/driver.rst, "CHAINED
> CASCADED GPIO IRQCHIPS" for additional information.

Any reason for not using preempt_disable()?



[Index of Archives]     [LKML Archive]     [Linux ARM Kernel]     [Linux ARM]     [Git]     [Yosemite News]     [Linux SCSI]     [Linux Hams]

  Powered by Linux