On 08/07/2015 10:11 AM, Tomeu Vizoso wrote:

On 6 August 2015 at 22:19, Rob Herring [off-list ref] wrote:

quoted

On Thu, Aug 6, 2015 at 9:11 AM, Tomeu Vizoso [off-list ref] wrote:

quoted

Delay matches of platform devices with OF nodes until late_initcall,
when we are sure that all built-in drivers have been registered already.
This is needed to prevent deferred probes because of some drivers not
having registered yet.

The reason why only platform devices are delayed is that some other
devices are expected to be probed earlier than late_initcall, for
example, the system PNP driver needs to probe its devices in
fs_initcall.

Additionally, only platform devices with OF nodes are delayed because
some machines may depend on oter platform devices being registered at
specific times.

How do we know that these probes occur before the unused clocks and
regulators are turned off? Just getting lucky (as is deferred probe)?
Can we do this one level earlier so we have a level left to do things
after probe.

Those are already late_initcall_sync so I guess we're fine.

I wouldn't be so sure :(
FYI:
http://git.ti.com/ti-linux-kernel/ti-linux-kernel/commit/763d643bbfc0f445c6685c541fcae3c370e4314a


-- 
regards,
-grygorii