[RFC PATCH 0/9] dt: dependencies (for deterministic driver initialization order based on the DT)
From: mark.rutland@arm.com (Mark Rutland)
Date: 2014-08-26 09:57:00
Also in:
linux-devicetree, lkml
On Mon, Aug 25, 2014 at 10:39:32AM +0100, Thierry Reding wrote:
On Fri, Aug 22, 2014 at 02:19:19PM +0100, Mark Rutland wrote:quoted
On Thu, Aug 21, 2014 at 08:19:00PM +0100, Alexander Holler wrote:quoted
Am 21.08.2014 16:02, schrieb Thierry Reding:quoted
Anyway, those are all fairly standard reasons for where deferred probe triggers, and since I do like deferred probe for it's simplicity and reliability I'd rather not try to work around it if boot time is all that people are concerned about.It's neither simple nor reliable. It's non deterministic brutforcing while making it almost impossible to identify real errors.It's horrible, yes.quoted
In my humble opinion the worst way to solve something. I'm pretty sure if I would have suggest such a solution, the maintainer crowd would have eaten me without cooking.We didn't have a better workable solution at the time.You make it sound like we've come up with a better workable solution in the meantime.
That wasn't the intention, but my sloppy wording does make it come across that way.
quoted
Having a hack that got boards booting was considered better than not having them boot. I don't remember people being particularly enthralled by the idea.Odd, I remember things quite differently.
Then perhaps my memory is faulty. :)
Anyway, instead of going back and forth between "deferred probe is good" and "deferred probe is bad", how about we do something useful now and concentrate on how to make use of the information we have in DT with the goal to reduce the number of cases where deferred probing is required?
Certainly. Mark.