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Date: Tue, 04 Dec 2007 17:47:13 -0600
From: Timur Tabi <timur@freescale.com>
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To: Arnd Bergmann <arnd@arndb.de>
Subject: Re: ucc_uart: add support for Freescale QUICCEngine UART
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Arnd Bergmann wrote:

> You can argue that the QS is really a DMA device, but in that case you
> should convert the driver to use the DMA mapping interfaces correctly,
> which I would consider overkill.

I'm confused.  I'm already calling dma_alloc_coherent() and getting a dma_addr_t 
back.  Why do I need to use mapping functions to convert between virtual and 
physical/bus addresses?

-- 
Timur Tabi
Linux kernel developer at Freescale