Messages in this thread | | | Subject | Re: [PATCH v6 22/22] of/platform: Defer probes of registered devices | From | Michael Ellerman <> | Date | Thu, 22 Oct 2015 11:34:48 +1100 |
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On Wed, 2015-10-21 at 00:54 -0500, Scott Wood wrote:
> On Mon, 2015-09-21 at 16:03 +0200, Tomeu Vizoso wrote:
> > Instead of trying to match and probe platform and AMBA devices right > > after each is registered, delay their probes until device_initcall_sync. > > > > This means that devices will start probing once all built-in drivers > > have registered, and after all platform and AMBA devices from the DT > > have been registered already. > > > > This allows us to prevent deferred probes by probing dependencies on > > demand. > > > > Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> > > --- > > > > Changes in v4: > > - Also defer probes of AMBA devices registered from the DT as they can > > also request resources. > > > > drivers/of/platform.c | 11 ++++++++--- > > 1 file changed, 8 insertions(+), 3 deletions(-) > > This breaks arch/powerpc/sysdev/fsl_pci.c. The PCI bus is an OF platform > device, and it must be probed before pcibios_init() which is a > subsys_initcall(), or else the PCI bus never gets scanned.
Ah right. This is presumably why I'm not seeing any PCI devices on my p5020ds with linux-next.
cheers
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