From: Nicolin Chen <Guangyu.Chen@freescale.com>
To: Mark Brown <broonie@kernel.org>
Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org,
kuninori.morimoto.gx@renesas.com, moinejf@free.fr,
Li.Xiubo@freescale.com, lgirdwood@gmail.com,
Jyri Sarha <jsarha@ti.com>
Subject: Re: [PATCH] ASoC: simple-card: overwrite DAIFMT_MASTER of cpu_dai->fmt
Date: Wed, 12 Mar 2014 10:01:24 +0800 [thread overview]
Message-ID: <20140312020123.GC1177@MrMyself> (raw)
In-Reply-To: <20140311132553.GR28112@sirena.org.uk>
On Tue, Mar 11, 2014 at 01:25:53PM +0000, Mark Brown wrote:
> On Tue, Mar 11, 2014 at 08:54:32PM +0800, Nicolin Chen wrote:
>
> Adding Jyri who's been looking at this as well but not added anyone else
> working on simple-card so you might've missed his mails.
>
> > It's pretty fair to do it for DAIFMT_INV since two dais might have differnt
> > definitions in their drivers even though it'd be better to keep it same if
> > we could.
>
> No, that's not at all OK - anything that requires this is broken. The
> same DAI format should be usable by both ends of the link unless the
> board itself is inverting one of the signals or something.
That makes sense to me. Okay, I'll overwrite them all...
>
> > Thus this patch fixes it by overwriting the DAIFMT_MASTER bit of cpu_dai->fmt
> > with the one of codec_dai->fmt since we defined DAIFMT_MASTER basing on CODEC
> > at the first place.
>
> This seems closer to what I'd expect for something like this but it does
> mean that any format settings on the CPU DAI will be ignored (rather
> than say warning or something). I'm not sure this is a bad thing
> though, probably wants the binding documenting at least.
...along with the binding doc.
WARNING: multiple messages have this Message-ID (diff)
From: Nicolin Chen <Guangyu.Chen@freescale.com>
To: Mark Brown <broonie@kernel.org>
Cc: <alsa-devel@alsa-project.org>, <linux-kernel@vger.kernel.org>,
<kuninori.morimoto.gx@renesas.com>, <moinejf@free.fr>,
<Li.Xiubo@freescale.com>, <lgirdwood@gmail.com>,
Jyri Sarha <jsarha@ti.com>
Subject: Re: [PATCH] ASoC: simple-card: overwrite DAIFMT_MASTER of cpu_dai->fmt
Date: Wed, 12 Mar 2014 10:01:24 +0800 [thread overview]
Message-ID: <20140312020123.GC1177@MrMyself> (raw)
In-Reply-To: <20140311132553.GR28112@sirena.org.uk>
On Tue, Mar 11, 2014 at 01:25:53PM +0000, Mark Brown wrote:
> On Tue, Mar 11, 2014 at 08:54:32PM +0800, Nicolin Chen wrote:
>
> Adding Jyri who's been looking at this as well but not added anyone else
> working on simple-card so you might've missed his mails.
>
> > It's pretty fair to do it for DAIFMT_INV since two dais might have differnt
> > definitions in their drivers even though it'd be better to keep it same if
> > we could.
>
> No, that's not at all OK - anything that requires this is broken. The
> same DAI format should be usable by both ends of the link unless the
> board itself is inverting one of the signals or something.
That makes sense to me. Okay, I'll overwrite them all...
>
> > Thus this patch fixes it by overwriting the DAIFMT_MASTER bit of cpu_dai->fmt
> > with the one of codec_dai->fmt since we defined DAIFMT_MASTER basing on CODEC
> > at the first place.
>
> This seems closer to what I'd expect for something like this but it does
> mean that any format settings on the CPU DAI will be ignored (rather
> than say warning or something). I'm not sure this is a bad thing
> though, probably wants the binding documenting at least.
...along with the binding doc.
next prev parent reply other threads:[~2014-03-12 2:01 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-11 12:54 [PATCH] ASoC: simple-card: overwrite DAIFMT_MASTER of cpu_dai->fmt Nicolin Chen
2014-03-11 12:54 ` Nicolin Chen
2014-03-11 13:25 ` Mark Brown
2014-03-12 2:01 ` Nicolin Chen [this message]
2014-03-12 2:01 ` Nicolin Chen
2014-03-12 1:32 ` [alsa-devel] " Kuninori Morimoto
2014-03-12 1:32 ` Kuninori Morimoto
2014-03-12 1:49 ` Mark Brown
2014-03-12 3:36 ` Kuninori Morimoto
2014-03-12 3:26 ` Nicolin Chen
2014-03-12 3:26 ` Nicolin Chen
2014-03-12 4:01 ` Kuninori Morimoto
2014-03-12 4:01 ` Kuninori Morimoto
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