Quoting Lina Iyer (2019-11-14 10:35:15) > From: Maulik Shah <mkshah@xxxxxxxxxxxxxx> > > On certain QTI chipsets some GPIOs are direct-connect interrupts to the > GIC to be used as regular interrupt lines. When the GPIOs are not used > for interrupt generation the interrupt line is disabled. But disabling > the interrupt at GIC does not prevent the interrupt to be reported as > pending at GIC_ISPEND. Later, when drivers call enable_irq() on the > interrupt, an unwanted interrupt occurs. > > Introduce get and set methods for irqchip's parent to clear it's pending > irq state. This then can be invoked by the GPIO interrupt controller on > the parents in it hierarchy to clear the interrupt before enabling the > interrupt. > > Signed-off-by: Maulik Shah <mkshah@xxxxxxxxxxxxxx> > [updated commit text and minor code fixes] > Signed-off-by: Lina Iyer <ilina@xxxxxxxxxxxxxx> > --- Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
