Re: [PATCH v3] dma: imx-sdma: switch to dynamic context mode after script loaded
From: Vinod Koul
Date: Thu Feb 12 2015 - 02:27:52 EST
On Thu, Jan 22, 2015 at 03:23:40PM +0800, Robin Gong wrote:
> Below comments got from Page4724 of Reference Manual of i.mx6q:
> --"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.
Pls ensure you use the right subsystem name
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