Hello.
Felipe Balbi wrote:
On Tue, Jan 04, 2011 at 11:41:05PM +0800, Ming Lei wrote:
OMAP GPIOs have many usages or use cases, so we can use gpiolib
to simplify access to GPIOs. If GPIOs has only one usage or use case,
it is not necessary to access GPIOs by gpiolib.
Now this kind of DMA controllers are only used by MUSB or only for
MUSB, so it doesn't matter to access them by dmaengine or not.
Not entirely true. TUSB uses OMAP system DMA and AFAICT CPPI is used
also for ethernet.
Yes, but the CPPI registers are not compatible between MUSB and EMAC, only
the descriptors are, AFAIK.
WBR, Sergei
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