From: Mark Brown <broonie@kernel.org>
To: Matt Flax <flatmax@flatmax.org>
Cc: "Emmanuel Fusté" <emmanuel.fuste@laposte.net>,
alsa-devel@alsa-project.org,
"Lars-Peter Clausen" <lars@metafoo.de>,
"Stephen Warren" <swarren@wwwdotorg.org>,
"Eric Anholt" <eric@anholt.net>, "Lee Jones" <lee@kernel.org>,
phil@raspberrypi.org, "Liam Girdwood" <lgirdwood@gmail.com>,
"Matthias Reichl" <hias@horus.com>,
florian.kauer@koalo.de, "Florian Meier" <florian.meier@koalo.de>,
linux-rpi-kernel@lists.infradead.org,
"Charles Keepax" <ckeepax@opensource.wolfsonmicro.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 0/3] ASoC: Enable a new IC master mode: bcm2835<=>IC<=>cs42xx8
Date: Mon, 27 Mar 2017 11:01:26 +0100 [thread overview]
Message-ID: <20170327100126.osj3o2qtq4jwex3s@sirena.org.uk> (raw)
In-Reply-To: <3c818d92-498e-868c-696b-a9b709af5415@flatmax.org>
[-- Attachment #1.1: Type: text/plain, Size: 868 bytes --]
On Sat, Mar 25, 2017 at 04:45:46PM +1100, Matt Flax wrote:
> On 25/03/17 06:09, Mark Brown wrote:
> > Could you please be concrete about what the two formats you're talking
> > about here are and how these differences are observable on the wire? I
> > don't know what "two data word edge triggered ABP" means.
> On the codec side it is a regular TDM stream.
> On the SoC side, two channels are arbitrarily offset from a PCM frame sync
> clock (PCM_FS) leading edge. I have chosen to have 64 bits per frame with 1
> bit offset for the first word (from the leading edge) and 33 bits offset
> (from the leading edge) for the second word. This resembles I2S, but it
> doesn't have to for the bcm2835.
What's internal to the SoC is not relevant here, what matters is what's
externally visible. The formats on the DAI are how the SoC interfaces
with the outside world.
[-- Attachment #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
[-- Attachment #2: Type: text/plain, Size: 0 bytes --]
WARNING: multiple messages have this Message-ID (diff)
From: broonie@kernel.org (Mark Brown)
To: linux-arm-kernel@lists.infradead.org
Subject: [alsa-devel] [PATCH 0/3] ASoC: Enable a new IC master mode: bcm2835<=>IC<=>cs42xx8
Date: Mon, 27 Mar 2017 11:01:26 +0100 [thread overview]
Message-ID: <20170327100126.osj3o2qtq4jwex3s@sirena.org.uk> (raw)
In-Reply-To: <3c818d92-498e-868c-696b-a9b709af5415@flatmax.org>
On Sat, Mar 25, 2017 at 04:45:46PM +1100, Matt Flax wrote:
> On 25/03/17 06:09, Mark Brown wrote:
> > Could you please be concrete about what the two formats you're talking
> > about here are and how these differences are observable on the wire? I
> > don't know what "two data word edge triggered ABP" means.
> On the codec side it is a regular TDM stream.
> On the SoC side, two channels are arbitrarily offset from a PCM frame sync
> clock (PCM_FS) leading edge. I have chosen to have 64 bits per frame with 1
> bit offset for the first word (from the leading edge) and 33 bits offset
> (from the leading edge) for the second word. This resembles I2S, but it
> doesn't have to for the bcm2835.
What's internal to the SoC is not relevant here, what matters is what's
externally visible. The formats on the DAI are how the SoC interfaces
with the outside world.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 488 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20170327/b0422944/attachment.sig>
next prev parent reply other threads:[~2017-03-27 10:02 UTC|newest]
Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-25 5:03 [PATCH 0/3] ASoC: Enable a new IC master mode: bcm2835<=>IC<=>cs42xx8 Matt Flax
2017-02-25 5:03 ` Matt Flax
2017-02-25 5:03 ` [PATCH 1/3] ASoC : Add an IC bit and frame master mode (SoC and Codec slave) Matt Flax
2017-02-25 5:03 ` Matt Flax
2017-03-15 19:02 ` Mark Brown
2017-03-15 19:02 ` Mark Brown
2017-02-25 5:03 ` [PATCH 2/3] ASoC: cs42xx8: allow IC master mode Matt Flax
2017-02-25 5:03 ` Matt Flax
2017-02-25 5:03 ` [PATCH 3/3] ASoC: bcm2835: Add mutichannel mode in DSP and IC master modes Matt Flax
2017-02-25 5:03 ` Matt Flax
2017-02-25 13:39 ` [PATCH 0/3] ASoC: Enable a new IC master mode: bcm2835<=>IC<=>cs42xx8 Matthias Reichl
2017-02-25 13:39 ` Matthias Reichl
2017-02-25 22:13 ` Matt Flax
2017-02-25 22:13 ` [alsa-devel] " Matt Flax
2017-02-26 14:49 ` Matthias Reichl
2017-02-26 14:49 ` [alsa-devel] " Matthias Reichl
2017-02-26 20:21 ` Matt Flax
2017-02-26 20:21 ` [alsa-devel] " Matt Flax
2017-02-26 22:16 ` Matthias Reichl
2017-02-26 22:16 ` [alsa-devel] " Matthias Reichl
2017-02-26 22:35 ` Matt Flax
2017-02-26 22:35 ` [alsa-devel] " Matt Flax
2017-02-27 8:04 ` Matthias Reichl
2017-02-27 8:04 ` [alsa-devel] " Matthias Reichl
2017-02-27 10:08 ` Matt Flax
2017-02-27 10:08 ` [alsa-devel] " Matt Flax
2017-02-27 10:30 ` Matthias Reichl
2017-02-27 10:30 ` [alsa-devel] " Matthias Reichl
2017-02-27 11:21 ` Matt Flax
2017-02-27 11:21 ` [alsa-devel] " Matt Flax
2017-02-27 11:51 ` Matthias Reichl
2017-02-27 11:51 ` [alsa-devel] " Matthias Reichl
2017-02-28 9:59 ` Charles Keepax
2017-02-28 9:59 ` [alsa-devel] " Charles Keepax
2017-03-15 19:01 ` Mark Brown
2017-03-15 19:01 ` [alsa-devel] " Mark Brown
2017-03-16 20:51 ` Matt Flax
2017-03-16 20:51 ` [alsa-devel] " Matt Flax
2017-03-16 21:27 ` Lars-Peter Clausen
2017-03-16 21:27 ` [alsa-devel] " Lars-Peter Clausen
2017-03-16 22:14 ` Matt Flax
2017-03-16 22:14 ` [alsa-devel] " Matt Flax
2017-03-21 21:21 ` Emmanuel Fusté
2017-03-21 21:21 ` [alsa-devel] " Emmanuel Fusté
2017-03-21 22:11 ` Matthias Reichl
2017-03-21 22:11 ` [alsa-devel] " Matthias Reichl
2017-03-21 23:29 ` Matt Flax
2017-03-21 23:29 ` [alsa-devel] " Matt Flax
2017-03-22 9:43 ` Charles Keepax
2017-03-22 9:43 ` [alsa-devel] " Charles Keepax
2017-03-22 12:04 ` Matt Flax
2017-03-22 12:04 ` [alsa-devel] " Matt Flax
2017-03-22 12:34 ` Charles Keepax
2017-03-22 12:34 ` Charles Keepax
2017-03-22 15:38 ` Stephen Warren
2017-03-22 15:38 ` [alsa-devel] " Stephen Warren
2017-03-24 19:11 ` Mark Brown
2017-03-24 19:11 ` [alsa-devel] " Mark Brown
2017-03-24 19:09 ` Mark Brown
2017-03-24 19:09 ` [alsa-devel] " Mark Brown
2017-03-25 5:45 ` Matt Flax
2017-03-25 5:45 ` [alsa-devel] " Matt Flax
2017-03-27 10:01 ` Mark Brown [this message]
2017-03-27 10:01 ` Mark Brown
2017-03-27 10:35 ` Matt Flax
2017-03-27 10:35 ` [alsa-devel] " Matt Flax
2017-03-27 11:30 ` Mark Brown
2017-03-27 11:30 ` [alsa-devel] " Mark Brown
2017-03-26 19:02 ` Emmanuel Fusté
2017-03-26 19:02 ` [alsa-devel] " Emmanuel Fusté
2017-02-28 10:10 ` Charles Keepax
2017-02-28 10:10 ` [alsa-devel] " Charles Keepax
2017-02-26 20:41 ` Emmanuel Fusté
2017-02-26 20:41 ` [alsa-devel] " Emmanuel Fusté
2017-02-26 21:44 ` Matt Flax
2017-02-26 22:49 ` Emmanuel Fusté
2017-02-27 9:14 ` Matthias Reichl
2017-02-27 9:14 ` [alsa-devel] " Matthias Reichl
2017-02-27 18:19 ` Emmanuel Fusté
2017-02-27 19:12 ` Emmanuel Fusté
2017-02-27 19:12 ` [alsa-devel] " Emmanuel Fusté
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=20170327100126.osj3o2qtq4jwex3s@sirena.org.uk \
--to=broonie@kernel.org \
--cc=alsa-devel@alsa-project.org \
--cc=ckeepax@opensource.wolfsonmicro.com \
--cc=emmanuel.fuste@laposte.net \
--cc=eric@anholt.net \
--cc=flatmax@flatmax.org \
--cc=florian.kauer@koalo.de \
--cc=florian.meier@koalo.de \
--cc=hias@horus.com \
--cc=lars@metafoo.de \
--cc=lee@kernel.org \
--cc=lgirdwood@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-rpi-kernel@lists.infradead.org \
--cc=phil@raspberrypi.org \
--cc=swarren@wwwdotorg.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.