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From: Nicolin Chen <nicoleotsuka@gmail.com>
To: "S.j. Wang" <shengjiu.wang@nxp.com>
Cc: "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>,
	"timur@kernel.org" <timur@kernel.org>,
	"Xiubo.Lee@gmail.com" <Xiubo.Lee@gmail.com>,
	"festevam@gmail.com" <festevam@gmail.com>,
	"broonie@kernel.org" <broonie@kernel.org>,
	"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [EXT] Re: [PATCH] ASoC: fsl_asrc: replace the process_option table with function
Date: Wed, 10 Apr 2019 02:51:30 -0700	[thread overview]
Message-ID: <20190410095129.GA3468@Asurada> (raw)
In-Reply-To: <VE1PR04MB6479C577E9C2C58E624C5611E32E0@VE1PR04MB6479.eurprd04.prod.outlook.com>

On Wed, Apr 10, 2019 at 08:26:59AM +0000, S.j. Wang wrote:
> > Is it possible to update the table? It'd be way quicker to use lookup table
> > than real-time calculation all the time. I believe you can simply calculate all
> > the values out for 12KHz and 24KHz since you have the function. If there are
> > certain combinations of these two not being supported, then we could mark
> > it with a special value and add an if-check to error out.
> > 
> 
> Yes,  but I think the function should be more flexible, if someday we need to support
> Other sample rate, only need to update the list.

Given the fact that the owner of the function cannot give more
comments, I feel the function wouldn't be very maintainable as
none of us understands it well. On the other hand, you'll need
to update the supported I/O rate lists anyway, so why not just
update the table as well? The supported sample rates from ALSA
are limited too. Overall, I think that continue using a lookup
table wins.

  reply	other threads:[~2019-04-10  9:53 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-10  3:15 [PATCH] ASoC: fsl_asrc: replace the process_option table with function S.j. Wang
2019-04-10  4:26 ` Nicolin Chen
2019-04-10  7:22   ` [EXT] " S.j. Wang
2019-04-10  8:00     ` Nicolin Chen
2019-04-10  8:26       ` S.j. Wang
2019-04-10  9:51         ` Nicolin Chen [this message]
2019-04-10 10:34           ` S.j. Wang
2019-04-10 17:54             ` Nicolin Chen

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