Re: musb_hdrc and tusb6010 loop

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01.05.2014 23:40, Felipe Balbi пишет:
Hi,

On Thu, May 01, 2014 at 11:13:19PM +0400, Matwey V. Kornilov wrote:

Hi,

With the following configure options, musb_hdrc and tusb6010 make dependency
loop:

CONFIG_USB_MUSB_HDRC=m
CONFIG_USB_MUSB_TUSB6010=m
CONFIG_USB_TUSB_OMAP_DMA=y

tusb6010.ko provides function `tusb_get_revision` which is used by
tusb6010_omap.o which is a part of musb_hdrc.ko

In its turn, tusb6010.ko uses much of functions provided by musb_hdrc.ko

What could be a solution to this?

don't let tusb6010_omap use any symbols from tusb6010.ko. the _omap
variant is just an adapter for the private DMA API (should be moved to
dmaengine, actually) and as such, it shouldn't know details about
tusb6010 (which doesn't exactly depend on the underlying DMA).


This is possible when `tusb_get_revision` is static inline function. Then we would have to copies of `tusb_get_revision`: in tusb6010.ko, and in musb_hdrc.ko (tusb6010_omap.o)


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