From: Vinod Koul <vinod.koul@intel.com>
To: Robin Gong <b38343@freescale.com>
Cc: dan.j.williams@intel.com, s.hauer@pengutronix.de,
dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3] dma: imx-sdma: switch to dynamic context mode after script loaded
Date: Thu, 12 Feb 2015 12:55:26 +0530 [thread overview]
Message-ID: <20150212072526.GJ21387@intel.com> (raw)
In-Reply-To: <1421911420-31821-1-git-send-email-b38343@freescale.com>
On Thu, Jan 22, 2015 at 03:23:40PM +0800, Robin Gong wrote:
> Below comments got from Page4724 of Reference Manual of i.mx6q:
> http://cache.freescale.com/files/32bit/doc/ref_manual/IMX6DQRM.pdf
>
> --"Static context mode should be used for the first channel called
> after reset to ensure that the all context RAM for that channel is
> initialized during the context SAVE phase when the channel is
> done or yields. Subsequent calls to the same channel or
> different channels may use any of the dynamic context modes.
> This will ensure that all context locations for the bootload
> channel are initialized, and prevent undefined values in context
> RAM from being loaded during the context restore if the
> channel is re-started later"
>
> Unfortunately, the rule was broken by commit(5b28aa319bba96987316425a1131813d87cbab35)
> .This patch just take them back.
Applied, thanks
Pls ensure you use the right subsystem name
--
~Vinod
prev parent reply other threads:[~2015-02-12 7:27 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-22 7:23 [PATCH v3] dma: imx-sdma: switch to dynamic context mode after script loaded Robin Gong
2015-01-22 9:13 ` Sascha Hauer
2015-02-12 7:25 ` Vinod Koul [this message]
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