From: Timur Tabi <timur@freescale.com>
To: Trent Piepho <tpiepho@gmail.com>
Cc: alsa-devel@alsa-project.org,
Mark Brown <broonie@opensource.wolfsonmicro.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
linux-arm-kernel@lists.infradead.org,
Shawn Guo <shawn.guo@linaro.org>
Subject: Re: [PATCH v5 8/8] ASoC: fsl: add imx-sgtl5000 machine driver
Date: Fri, 16 Mar 2012 16:31:20 -0500 [thread overview]
Message-ID: <4F63B128.7040705@freescale.com> (raw)
In-Reply-To: <CA+7tXih-omxaDq6dSKBeOaZ7YRWDVSQnMY=eJZ0-YumOBG=oCA@mail.gmail.com>
Trent Piepho wrote:
> The ESAI and SSI hardware are totally different. SSI gives you a
> playback and a record stream in an I2S, or I2S like, interface. A
> stream is mono or stereo. ESAI has IIRC up to six output and four
> inputs streams. Each stream is in parallel on the same clock, and can
> have one or more channels.
Are these channels on the same wire in a time-division multiplexing, or on
six different wires? If it's a TDM, then the SSI can actually do this
using "network mode", but I don't enable that in the driver, since it's
not really I2S compliant.
Well, this point is not really relevant to the discussion.
--
Timur Tabi
Linux kernel developer at Freescale
WARNING: multiple messages have this Message-ID (diff)
From: timur@freescale.com (Timur Tabi)
To: linux-arm-kernel@lists.infradead.org
Subject: [alsa-devel] [PATCH v5 8/8] ASoC: fsl: add imx-sgtl5000 machine driver
Date: Fri, 16 Mar 2012 16:31:20 -0500 [thread overview]
Message-ID: <4F63B128.7040705@freescale.com> (raw)
In-Reply-To: <CA+7tXih-omxaDq6dSKBeOaZ7YRWDVSQnMY=eJZ0-YumOBG=oCA@mail.gmail.com>
Trent Piepho wrote:
> The ESAI and SSI hardware are totally different. SSI gives you a
> playback and a record stream in an I2S, or I2S like, interface. A
> stream is mono or stereo. ESAI has IIRC up to six output and four
> inputs streams. Each stream is in parallel on the same clock, and can
> have one or more channels.
Are these channels on the same wire in a time-division multiplexing, or on
six different wires? If it's a TDM, then the SSI can actually do this
using "network mode", but I don't enable that in the driver, since it's
not really I2S compliant.
Well, this point is not really relevant to the discussion.
--
Timur Tabi
Linux kernel developer at Freescale
next prev parent reply other threads:[~2012-03-16 21:31 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-16 8:56 [PATCH v5] ASoC: add imx-sgtl5000 machine driver working with fsl_ssi Shawn Guo
2012-03-16 8:56 ` Shawn Guo
2012-03-16 8:56 ` [PATCH v5 1/8] ASoC: fsl: separate SSI and DMA Kconfig options Shawn Guo
2012-03-16 8:56 ` Shawn Guo
2012-03-19 13:56 ` Mark Brown
2012-03-19 13:56 ` Mark Brown
2012-03-16 8:56 ` [PATCH v5 2/8] ASoC: imx: merge sound/soc/imx into sound/soc/fsl Shawn Guo
2012-03-16 8:56 ` Shawn Guo
2012-03-16 21:21 ` Timur Tabi
2012-03-16 21:21 ` Timur Tabi
2012-03-17 0:21 ` Shawn Guo
2012-03-17 0:21 ` Shawn Guo
2012-03-27 15:06 ` Philippe Rétornaz
2012-03-27 15:06 ` Philippe Rétornaz
2012-03-28 2:42 ` Shawn Guo
2012-03-28 2:42 ` Shawn Guo
2012-03-16 8:56 ` [PATCH v5 3/8] ASoC: fsl: rename imx-pcm Kconfig options and filename Shawn Guo
2012-03-16 8:56 ` Shawn Guo
2012-03-16 8:56 ` [PATCH v5 4/8] ASoC: fsl: create fsl_utils to accommodate the common functions Shawn Guo
2012-03-16 8:56 ` Shawn Guo
2012-03-16 8:56 ` [PATCH v5 5/8] ASoC: fsl: remove helper fsl_asoc_get_codec_dev_name Shawn Guo
2012-03-16 8:56 ` Shawn Guo
2012-03-16 8:56 ` [PATCH v5 6/8] ASoC: fsl: make fsl_ssi driver compilable on ARM/IMX Shawn Guo
2012-03-16 8:56 ` Shawn Guo
2012-03-16 8:56 ` [PATCH v5 7/8] ASoC: fsl: let fsl_ssi work with imx pcm and machine drivers Shawn Guo
2012-03-16 8:56 ` Shawn Guo
2012-03-16 8:56 ` [PATCH v5 8/8] ASoC: fsl: add imx-sgtl5000 machine driver Shawn Guo
2012-03-16 8:56 ` Shawn Guo
2012-03-16 10:16 ` Trent Piepho
2012-03-16 10:16 ` [alsa-devel] " Trent Piepho
2012-03-16 11:18 ` Shawn Guo
2012-03-16 11:18 ` [alsa-devel] " Shawn Guo
2012-03-16 19:21 ` Mark Brown
2012-03-16 19:21 ` [alsa-devel] " Mark Brown
2012-03-16 21:28 ` Trent Piepho
2012-03-16 21:28 ` [alsa-devel] " Trent Piepho
2012-03-16 21:31 ` Timur Tabi [this message]
2012-03-16 21:31 ` Timur Tabi
2012-03-16 21:45 ` Trent Piepho
2012-03-16 21:45 ` [alsa-devel] " Trent Piepho
2012-03-17 0:07 ` Shawn Guo
2012-03-17 0:07 ` [alsa-devel] " Shawn Guo
2012-03-16 21:25 ` [PATCH v5] ASoC: add imx-sgtl5000 machine driver working with fsl_ssi Timur Tabi
2012-03-16 21:25 ` Timur Tabi
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