Re: [alsa-devel] [PATCH] ASoC: mediatek: Use current HW pointer for pointer callback

On Thu, Dec 03, 2015 at 10:41:38AM +0100, Takashi Iwai wrote:

While reading this patch, I wondered how regmap can be used safely in an irq-disabled context. Mark, do we have any API for that?

We can use user supplied locks or spin_lock_irqsave().