From: Marek Vasut <marex@denx.de>
To: Fabio Estevam <festevam@gmail.com>
Cc: Estevam Fabio-R49496 <r49496@freescale.com>,
"alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>,
Mark Brown <broonie@kernel.org>
Subject: Re: [PATCH] ASoC: sgtl5000: Do not read registers prior to turning on the supplies
Date: Fri, 31 May 2013 19:20:01 +0200 [thread overview]
Message-ID: <201305311920.02005.marex@denx.de> (raw)
In-Reply-To: <CAOMZO5CXMCQ8dN92BPfp5s7dz0Jfkm5MrK2duCjrt-s70gHJPA@mail.gmail.com>
Hi Fabio,
> On Fri, May 31, 2013 at 12:45 PM, Marek Vasut <marex@denx.de> wrote:
> > Ah, that's _very_ likely. I think the chip will NAK I2C communication
> > without having clock supplied to it. I did look into this stuff with an
> > LA yesterday night and I saw the 2-byte write followed by I2C NAK.
>
> Yes, I haven't had a chance to try enabling the saif clock earlier and
> I am currently out of office.
Send me a patch if you have time and I'll test it.
Best regards,
Marek Vasut
prev parent reply other threads:[~2013-05-31 17:20 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-28 14:04 [PATCH] ASoC: sgtl5000: Do not read registers prior to turning on the supplies Fabio Estevam
2013-05-28 14:32 ` Mark Brown
2013-05-30 22:36 ` Marek Vasut
2013-05-31 5:09 ` Estevam Fabio-R49496
2013-05-31 15:32 ` Marek Vasut
2013-05-31 15:36 ` Fabio Estevam
2013-05-31 15:45 ` Marek Vasut
2013-05-31 15:52 ` Fabio Estevam
2013-05-31 17:20 ` Marek Vasut [this message]
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