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

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Date:	Thu, 3 Dec 2015 11:01:58 +0000
From:	Mark Brown <broonie@...nel.org>
To:	Takashi Iwai <tiwai@...e.de>
Cc:	Koro Chen <koro.chen@...iatek.com>, lgirdwood@...il.com,
	alsa-devel@...a-project.org, srv_heupstream@...iatek.com,
	s.hauer@...gutronix.de, linux-kernel@...r.kernel.org,
	linux-mediatek@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org
Subject: 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().

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