Re: [alsa-devel] [PATCH 2/3] ASoC: rt298: clear IRQ at the beginning of rt298_irq

On Tue, Feb 16, 2016 at 05:12:35PM +0800, Bard Liao wrote:

The IRQ pin will go from high to low when the irq bit is clear. To let the IRQ pin go low as early as possible, move the clear irq bit function to the beginning of irq handler.

Why is this a benefit? We're going to mask the interrupt as long as the interrupt handler is running anyway.