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From: Kuninori Morimoto <kuninori.morimoto.gx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Lars-Peter Clausen <lars-Qo5EllUWu/uELgA04lAiVw@public.gmane.org>
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Linux-ALSA <alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org>,
	Kuninori Morimoto
	<kuninori.morimoto.gx-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>,
	Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Liam Girdwood <lgirdwood-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Simon <horms-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org>
Subject: Re: [alsa-devel] [PATCH 8/8] ASoC: add snd-soc-dummy DT support
Date: Thu, 28 Aug 2014 03:41:22 -0700 (PDT)	[thread overview]
Message-ID: <87tx4whp66.wl%kuninori.morimoto.gx@gmail.com> (raw)
In-Reply-To: <53FED90B.8070308-Qo5EllUWu/uELgA04lAiVw@public.gmane.org>


Hi Lars

> > The reason why I'm tring to support DPCM on simple-card is "sampling rate convert".
> > My rcar_sound can convert sampling rate, and I tried to add this feature as
> > rcar_sound property.
> > But, Mark rejected and requests me to use DPCM for it,
> > since it can be common featrue.
> > Current existing simple-card can't use it, and I'm tring.
> > But, am I misunderstanding ?
> 
> Is the sample rate converter a extra module, or is the sample rate converter 
> just a feature of the I2S core?

Does this "I2S core" = CPU ?
Then, it is CPU's feature.
The image is like this

  48kHz   --->      48kHz
  44.1kHz ---> [CPU] ---> [codec]
  96kHz   --->

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  parent reply	other threads:[~2014-08-28 10:41 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-20  7:06 [PATCH 0/8] ASoC: simple-card: DPCM support Kuninori Morimoto
     [not found] ` <87fvgriqrb.wl%kuninori.morimoto.gx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-08-20  7:07   ` [PATCH 1/8] ASoC: simple-card: use asoc_simple_xxx prefix Kuninori Morimoto
2014-08-20  7:07   ` [PATCH 2/8] ASoC: simple-card: remove dai_link->cpu_dai_name when DT Kuninori Morimoto
2014-08-20  7:09   ` [PATCH 3/8] ASoC: simple-card: dai_link->init should be cared when multi DAI Kuninori Morimoto
2014-08-20  7:09   ` [PATCH 4/8] ASoC: simple-card: use common for_each_child_of_node() for loop Kuninori Morimoto
2014-08-20  7:11   ` [PATCH 5/8] ASoC: simple-card: add DPCM support when DT case Kuninori Morimoto
2014-08-20  7:11   ` [PATCH 6/8] ASoC: simple-card: remove is_top_level_node from asoc_simple_card_sub_parse_of() Kuninori Morimoto
2014-08-20  7:11   ` [PATCH 7/8] ASoC: rsnd: add dai_link stream name Kuninori Morimoto
2014-08-20  7:13   ` [PATCH 8/8] ASoC: add snd-soc-dummy DT support Kuninori Morimoto
     [not found]     ` <874mx7iqgt.wl%kuninori.morimoto.gx-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
2014-08-24  8:48       ` [alsa-devel] " Lars-Peter Clausen
     [not found]         ` <53F9A6EE.5070005-Qo5EllUWu/uELgA04lAiVw@public.gmane.org>
2014-08-26  0:04           ` Kuninori Morimoto
     [not found]             ` <871ts4nmki.wl%kuninori.morimoto.gx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-08-26  6:25               ` Mark Brown
     [not found]                 ` <20140826062558.GR17528-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-08-26  8:34                   ` Kuninori Morimoto
     [not found]                     ` <87wq9vmyyc.wl%kuninori.morimoto.gx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-08-26  9:11                       ` Mark Brown
     [not found]                         ` <20140826091120.GC17528-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-08-26  9:19                           ` Lars-Peter Clausen
     [not found]                             ` <53FC5105.6070901-Qo5EllUWu/uELgA04lAiVw@public.gmane.org>
2014-08-26  9:42                               ` Mark Brown
     [not found]                                 ` <20140826094211.GF17528-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-08-26 10:31                                   ` Kuninori Morimoto
     [not found]                                     ` <87r403mtip.wl%kuninori.morimoto.gx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-08-26 10:50                                       ` Mark Brown
     [not found]                                         ` <20140826105028.GK17528-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-08-27  1:11                                           ` Kuninori Morimoto
     [not found]                                             ` <87d2bmpwi2.wl%kuninori.morimoto.gx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-08-27  3:14                                               ` Kuninori Morimoto
     [not found]                                                 ` <87a96qpqsy.wl%kuninori.morimoto.gx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-08-27  8:24                                                   ` Lars-Peter Clausen
     [not found]                                                     ` <53FD95AB.6080903-Qo5EllUWu/uELgA04lAiVw@public.gmane.org>
2014-08-28  0:33                                                       ` Kuninori Morimoto
     [not found]                                                         ` <87fvghihaq.wl%kuninori.morimoto.gx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-08-28  7:23                                                           ` Lars-Peter Clausen
     [not found]                                                             ` <53FED90B.8070308-Qo5EllUWu/uELgA04lAiVw@public.gmane.org>
2014-08-28 10:41                                                               ` Kuninori Morimoto [this message]
2014-08-28  8:02                                                           ` Mark Brown
     [not found]                                                             ` <20140828080251.GG17528-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-08-28 10:56                                                               ` Kuninori Morimoto
     [not found]                                                                 ` <87sikghohq.wl%kuninori.morimoto.gx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-08-29  0:41                                                                   ` Kuninori Morimoto
2014-08-26  0:08   ` [PATCH 0/8] ASoC: simple-card: DPCM support Kuninori Morimoto
     [not found]     ` <87zjesm7sp.wl%kuninori.morimoto.gx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-08-28  3:04       ` Kuninori Morimoto

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