On 12/21/2011 04:38 PM, David Miller wrote:

It depends upon CONFIG_OF_IRQ which not all CONFIG_OF platforms support,
in particular sparc does not support CONFIG_OF_PLATFORM because it
precomputes all IRQs at boot time when it scans the device tree so all
of the CONFIG_OF_IRQ infrastructure to probe and resolve IRQs at driver
probe time is wrong and completely unnecessary.

Add the proper dependencies so that pata_of_platform.c doesn't get
built on sparc.

CONFIG_OF_IRQ was severely misdesigned, it should just NOP out on
platforms where the architecture has the final IRQ values already like
sparc does.  But that's not how it was implemented at all, and now
we're starting to have all of these drivers get hard dependencies on
this mechanism and it's datastructures, and the resulting sparc build
failures from time to time.

Jeff, please push something like the following to Linus so that
sparc's allmodconfig builds again.  Thanks.

Really, drivers should no longer use of_irq_to_resource (or
of_address_to_resource for that matter). The resources are setup by the
core OF code. The patch I sent does this.

Rob