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From: Mark Brown <broonie@kernel.org>
To: Jon Hunter <jonathanh@nvidia.com>
Cc: Jorge Sanjuan <jorge.sanjuan@codethink.co.uk>,
	lgirdwood@gmail.com, thierry.reding@gmail.com,
	alsa-devel@alsa-project.org, linux-tegra@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-kernel@lists.codethink.co.uk
Subject: Re: [PATCH 4/4] ASoC: tegra: i2s: Add support for more than 2 channels
Date: Mon, 30 Jul 2018 11:21:45 +0100
Message-ID: <20180730102145.GG5789@sirena.org.uk> (raw)
In-Reply-To: <d81d5c3c-2b2f-308f-d98e-d39c5d5d147f@nvidia.com>


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On Mon, Jul 30, 2018 at 10:46:14AM +0100, Jon Hunter wrote:
> On 27/07/18 13:59, Jorge Sanjuan wrote:

> > -	if (params_channels(params) != 2)
> > +	if (params_channels(params) > 8)
> >  		return -EINVAL;

> For normal I2S mode, channels should always be 2 and so it could be worth checking
> if we are using TDM mode here or not.

Yes, there's some question if a multi-channel I2S setup is going to be
all the left channels then all the right channels, have multiple data
lines in parallel (this especially common for high end applications) or
something else.  Usually it's safer to use a DSP mode for those.

Please fix your mail client to word wrap within paragraphs at something
substantially less than 80 columns.  Doing this makes your messages much
easier to read and reply to.

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  reply index

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-27 12:59 [PATCH 0/4] ASoC: Tegra30 TDM support Jorge Sanjuan
2018-07-27 12:59 ` [PATCH 1/4] ASoC: tegra: i2s: Fix typo/broken macro Jorge Sanjuan
2018-07-30  8:58   ` Jon Hunter
2018-07-30 11:04   ` Applied "ASoC: tegra: i2s: Fix typo/broken macro" to the asoc tree Mark Brown
2018-07-27 12:59 ` [PATCH 2/4] ASoC: tegra: Add a TDM configuration callback Jorge Sanjuan
2018-07-30  8:49   ` Mark Brown
2018-07-30  9:04     ` Ben Dooks
2018-07-30  9:31   ` Jon Hunter
2018-07-30 10:18     ` Mark Brown
2018-07-30 14:04       ` Jon Hunter
2018-07-30 14:15         ` Jon Hunter
2018-07-30 15:07         ` Mark Brown
2018-07-30 17:39           ` [Linux-kernel] " Ben Dooks
2018-07-27 12:59 ` [PATCH 3/4] ASoC: tegra: Allow 32-bit and 24-bit samples Jorge Sanjuan
2018-07-28 22:28   ` kbuild test robot
2018-07-29  9:21     ` Ben Dooks
2018-07-27 12:59 ` [PATCH 4/4] ASoC: tegra: i2s: Add support for more than 2 channels Jorge Sanjuan
2018-07-30  9:46   ` Jon Hunter
2018-07-30 10:21     ` Mark Brown [this message]
2018-07-30 17:22 ` [PATCH 0/4] ASoC: Tegra30 TDM support Ben Dooks

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