On Tue, Sep 20, 2016 at 2:15 PM, Mika Westerberg <[email protected]> wrote:
> When using GPIO irqchip helpers to setup irqchip for a gpiolib based > driver, it is not possible to select which GPIOs to add to the IRQ domain. > Instead it just adds all GPIOs which is not always desired. For example > there might be GPIOs that for some reason cannot generated normal > interrupts at all. > > To support this we add a flag irq_need_valid_mask to struct gpio_chip. When > this flag is set the core allocates irq_valid_mask that holds one bit for > each GPIO the chip has. By default all bits are set but drivers can > manipulate this using set_bit() and clear_bit() accordingly. > > Then when gpiochip_irqchip_add() is called, this mask is checked and all > GPIOs with bit is set are added to the IRQ domain created for the GPIO > chip. > > Suggested-by: Linus Walleij <[email protected]> > Signed-off-by: Mika Westerberg <[email protected]> Yeps, exactly like this! Patch applied. Yours, Linus Walleij
