linux-kernel - Re: [PATCH 1/2] ASoC: rockchip: i2s: add 8 channels capture and lrck-mode support

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Message-ID: <20151007093940.GA12635@sirena.org.uk>
Date:	Wed, 7 Oct 2015 10:39:40 +0100
From:	Mark Brown <broonie@...nel.org>
To:	sugar <sugar.zhang@...k-chips.com>
Cc:	alsa-devel@...a-project.org, heiko@...ech.de,
	linux-kernel@...r.kernel.org, tiwai@...e.com, lgirdwood@...il.com,
	linux-rockchip@...ts.infradead.org, perex@...ex.cz,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] ASoC: rockchip: i2s: add 8 channels capture and
 lrck-mode support

On Wed, Oct 07, 2015 at 10:27:14AM +0100, Mark Brown wrote:
> On Wed, Oct 07, 2015 at 04:01:38PM +0800, sugar wrote:

> > if (dai->symmetric_rates)
> > 	regmap_update_bits(i2s->regmap, I2S_CKR,
> >                            I2S_CKR_TRCM_MASK,
> >                            I2S_CKR_TRCM(val));

> Yes, something like that.  You'll need to check both links in the DAI
> and the DAI link itself rather than just your own DAI but we should have
> a helper function for that - I'll add one, look out for a patch shortly.

Actually no, now I look at the code you probably want to just clone the
check from soc_pcm_apply_symmetry() so have that be:

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	if (rtd->dai_link->symmetrict_rates) {
	}

instead.

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