Messages in this thread | | | Date | Tue, 02 Dec 2008 18:26:49 +0100 | From | Nicolas Ferre <> | Subject | Re: [PATCH 07/13] dmaengine: introduce dma_request_channel and private channels |
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Guennadi Liakhovetski : > Another problem I encountered with my framebuffer is the initialisation > order. You initialise dmaengine per subsys_initcall(), whereas the only > way to guarantee the order: > > dmaengine > dma-device driver > framebuffer > > when they are all linked into the kernel was to switch dmaengine to > arch_initcall, put the dma driver under subsys_initcall, and the > framebuffer under a normal module_init / device_initcall.
I did not dig much in this but I feel also that dmaengine is initialized a bit late : it seems to be initialized after atmel-mci is started. It works but it seems to me that dmaengine has to be initialized very early...
...my 2 cents.
Regards, -- Nicolas Ferre
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