[PATCH] powerpc: populate the default bus with machine_arch_initcall

Rob Herring robh at kernel.org
Sat Aug 13 05:30:04 AEST 2016

On Fri, Aug 12, 2016 at 12:49 AM, Kevin Hao <haokexin at gmail.com> wrote:
> On Fri, Aug 12, 2016 at 02:39:32PM +1000, Michael Ellerman wrote:
>> Kevin Hao <haokexin at gmail.com> writes:


>> Every one of those initcall changes could be introducing a bug, by
>> changing the order vs other init calls.
>> Can we just go back to the old behaviour on ppc?
> Sure. How about this one?
> From 4362b4cdd8a6198df4cc46c628473f0d44e03fa8 Mon Sep 17 00:00:00 2001
> From: Kevin Hao <haokexin at gmail.com>
> Date: Fri, 12 Aug 2016 13:30:03 +0800
> Subject: [PATCH v2] of/platform: disable the
>  of_platform_default_populate_init() for all the ppc boards
> With the commit 44a7185c2ae6 ("of/platform: Add common method to
> populate default bus"), a default function is introduced to populate
> the default bus and this function is invoked at the arch_initcall_sync
> level. But a lot of ppc boards use machine_device_initcall() to
> populate the default bus. This means that the default populate function
> has higher priority and would override the arch specific population of
> the bus. The side effect is that some arch specific bus are not probed,
> then cause various malfunction due to the miss of some devices. Since
> it is very possible to introduce bugs if we simply change the initcall
> level for all these boards(about 30+). This just disable this default
> function for all the ppc boards.
> Signed-off-by: Kevin Hao <haokexin at gmail.com>
> ---
>  drivers/of/platform.c | 2 ++
>  1 file changed, 2 insertions(+)

I've applied this one.


More information about the Linuxppc-dev mailing list