From: Wolfram Sang <wsa@the-dreams.de>
To: Fabio Estevam <festevam@gmail.com>
Cc: marex@denx.de, shawn.guo@linaro.org, kernel@pengutronix.de,
linux-i2c@vger.kernel.org, alexandre.belloni@free-electrons.com,
to-fleischer@t-online.de,
Fabio Estevam <fabio.estevam@freescale.com>,
stable@vger.kernel.org
Subject: Re: [PATCH v2] i2c: i2c-mxs: Use DMA mode even for small transfers
Date: Mon, 5 Aug 2013 10:11:32 +0200 [thread overview]
Message-ID: <20130805081132.GA2980@katana> (raw)
In-Reply-To: <1372713261-20551-1-git-send-email-festevam@gmail.com>
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On Mon, Jul 01, 2013 at 06:14:21PM -0300, Fabio Estevam wrote:
> From: Fabio Estevam <fabio.estevam@freescale.com>
>
> Recently we have been seing some reports about PIO mode not working properly.
>
> - http://www.spinics.net/lists/linux-i2c/msg11985.html
> - http://marc.info/?l=linux-i2c&m=137235593101385&w=2
> - https://lkml.org/lkml/2013/6/24/430
>
> Let's use DMA mode even for small transfers.
>
> Without this patch, i2c reads the incorrect sgtl5000 version on a mx28evk when
> touchscreen is enabled:
>
> [ 5.856270] sgtl5000 0-000a: Device with ID register 0 is not a sgtl5000
> [ 9.877307] sgtl5000 0-000a: ASoC: failed to probe CODEC -19
> [ 9.883528] mxs-sgtl5000 sound.12: ASoC: failed to instantiate card -19
> [ 9.892955] mxs-sgtl5000 sound.12: snd_soc_register_card failed (-19)
>
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Applied to for-current, thanks!
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prev parent reply other threads:[~2013-08-05 8:11 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-01 21:14 [PATCH v2] i2c: i2c-mxs: Use DMA mode even for small transfers Fabio Estevam
2013-07-02 2:23 ` Shawn Guo
2013-07-15 13:30 ` Fabio Estevam
[not found] ` <CAOMZO5Dyk_5CzcXvG7eJ3h07i=So0DS7MjtMQVHfpfx9Se_Teg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-07-15 14:12 ` Marek Vasut
2013-07-23 18:15 ` Fabio Estevam
2013-07-24 3:02 ` Marek Vasut
2013-07-24 3:09 ` Fabio Estevam
2013-07-26 0:46 ` Ben Hutchings
2013-07-26 4:20 ` Marek Vasut
[not found] ` <1372713261-20551-1-git-send-email-festevam-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2013-07-02 8:16 ` Lucas Stach
2013-07-03 2:38 ` Marek Vasut
[not found] ` <201307030438.50069.marex-ynQEQJNshbs@public.gmane.org>
2013-07-03 4:37 ` Marek Vasut
2013-07-03 8:33 ` Alexandre Belloni
[not found] ` <51D3E1D2.4070706-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2013-07-03 11:41 ` Marek Vasut
[not found] ` <201307030637.05324.marex-ynQEQJNshbs@public.gmane.org>
2013-07-03 9:11 ` Lucas Stach
[not found] ` <1372842695.4440.3.camel-WzVe3FnzCwFR6QfukMTsflXZhhPuCNm+@public.gmane.org>
2013-07-03 11:39 ` Marek Vasut
2013-08-05 8:11 ` Wolfram Sang [this message]
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