From: Eric Anholt <eric@anholt.net>
To: linux-rpi-kernel@lists.infradead.org
Cc: alsa-devel@alsa-project.org,
Clive Messer <clive.messer@digitaldreamtime.co.uk>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/1] ASoC: bcm2835-i2s: Support 384k sample rate
Date: Wed, 13 Jul 2016 18:37:47 -0700 [thread overview]
Message-ID: <87k2gp80es.fsf@eliezer.anholt.net> (raw)
In-Reply-To: <1466358739-31669-1-git-send-email-clive.messer@digitaldreamtime.co.uk>
[-- Attachment #1.1: Type: text/plain, Size: 407 bytes --]
Clive Messer <clive.messer@digitaldreamtime.co.uk> writes:
> Add support for sample rates up to 384k to bcm2835-i2s driver,
> with SNDRV_PCM_RATE_CONTINUOUS and specifying 8k min and 384k max,
> for both playback and capture.
It looks like this should be OK -- the PCM clock should max out at
25Mhz, and that divided by 2*32 (max bclk_ratio) is just over 384k.
Reviewed-by: Eric Anholt <eric@anholt.net>
[-- Attachment #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 818 bytes --]
[-- Attachment #2: Type: text/plain, Size: 0 bytes --]
WARNING: multiple messages have this Message-ID (diff)
From: eric@anholt.net (Eric Anholt)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/1] ASoC: bcm2835-i2s: Support 384k sample rate
Date: Wed, 13 Jul 2016 18:37:47 -0700 [thread overview]
Message-ID: <87k2gp80es.fsf@eliezer.anholt.net> (raw)
In-Reply-To: <1466358739-31669-1-git-send-email-clive.messer@digitaldreamtime.co.uk>
Clive Messer <clive.messer@digitaldreamtime.co.uk> writes:
> Add support for sample rates up to 384k to bcm2835-i2s driver,
> with SNDRV_PCM_RATE_CONTINUOUS and specifying 8k min and 384k max,
> for both playback and capture.
It looks like this should be OK -- the PCM clock should max out at
25Mhz, and that divided by 2*32 (max bclk_ratio) is just over 384k.
Reviewed-by: Eric Anholt <eric@anholt.net>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 818 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20160713/2b525964/attachment.sig>
next prev parent reply other threads:[~2016-07-14 1:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-19 17:52 [PATCH 1/1] ASoC: bcm2835-i2s: Support 384k sample rate Clive Messer
2016-06-19 17:52 ` Clive Messer
2016-07-14 1:37 ` Eric Anholt [this message]
2016-07-14 1:37 ` Eric Anholt
2017-11-10 21:29 ` Applied "ASoC: bcm2835: Support additional samplerates up to 384kHz" to the asoc tree Mark Brown
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87k2gp80es.fsf@eliezer.anholt.net \
--to=eric@anholt.net \
--cc=alsa-devel@alsa-project.org \
--cc=clive.messer@digitaldreamtime.co.uk \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-rpi-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.