Re: [PATCH 01/11] dma: imx-sdma: make channel0 operations atomic -- Linux I2C


Re: [PATCH 01/11] dma: imx-sdma: make channel0 operations atomic
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Subject: Re: [PATCH 01/11] dma: imx-sdma: make channel0 operations atomic
From: Laxman Dewangan <ldewangan@xxxxxxxxxx>
Date: Fri, 27 Apr 2012 18:31:13 +0530
Cc: Richard Zhao <richard.zhao@xxxxxxxxxxxxx>, Vinod Koul <vinod.koul@xxxxxxxxxxxxxxx>, "alsa-devel@xxxxxxxxxxxxxxxx" <alsa-devel@xxxxxxxxxxxxxxxx>, "ben-linux@xxxxxxxxx" <ben-linux@xxxxxxxxx>, "broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx" <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>, "w.sang@xxxxxxxxxxxxxx" <w.sang@xxxxxxxxxxxxxx>, "linux-i2c@xxxxxxxxxxxxxxx" <linux-i2c@xxxxxxxxxxxxxxx>, "kernel@xxxxxxxxxxxxxx" <kernel@xxxxxxxxxxxxxx>, "dan.j.williams@xxxxxxxxx" <dan.j.williams@xxxxxxxxx>, "shawn.guo@xxxxxxxxxx" <shawn.guo@xxxxxxxxxx>, "lrg@xxxxxx" <lrg@xxxxxx>, "linux-arm-kernel@xxxxxxxxxxxxxxxxxxx" <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, Lothar Waßmann <LW@xxxxxxxxxxxxxxxxxxx>
In-reply-to: <20120427113335.GM24211@n2100.arm.linux.org.uk>
References: <1335510185-7906-1-git-send-email-richard.zhao@freescale.com> <1335510185-7906-2-git-send-email-richard.zhao@freescale.com> <1335514900.31825.132.camel@vkoul-udesk3> <20120427084109.GO28063@b20223-02.ap.freescale.net> <1335522130.31825.135.camel@vkoul-udesk3> <20120427112655.GS28063@b20223-02.ap.freescale.net> <20120427113335.GM24211@n2100.arm.linux.org.uk>
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On Friday 27 April 2012 05:03 PM, Russell King - ARM Linux wrote:

On Fri, Apr 27, 2012 at 07:26:56PM +0800, Richard Zhao wrote:

Sure, I mean, can you doc in include/linux/dmaengine.h that
dmaengine_prep_xxx may sleep?

Incorrect.  They may _not_ sleep.

But I have seen that we are using the kzalloc in the dmaengine_prep_xxxand kzalloc is sleeping call.

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Follow-Ups:
- Re: [PATCH 01/11] dma: imx-sdma: make channel0 operations atomic
  - From: Russell King - ARM Linux

References:
- [PATCH 00/11] enable imx6q_sabrelite sgtl5000 audio support
  - From: Richard Zhao
- [PATCH 01/11] dma: imx-sdma: make channel0 operations atomic
  - From: Richard Zhao
- Re: [PATCH 01/11] dma: imx-sdma: make channel0 operations atomic
  - From: Vinod Koul
- Re: [PATCH 01/11] dma: imx-sdma: make channel0 operations atomic
  - From: Richard Zhao
- Re: [PATCH 01/11] dma: imx-sdma: make channel0 operations atomic
  - From: Vinod Koul
- Re: [PATCH 01/11] dma: imx-sdma: make channel0 operations atomic
  - From: Richard Zhao
- Re: [PATCH 01/11] dma: imx-sdma: make channel0 operations atomic
  - From: Russell King - ARM Linux

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