getting rid of subsys_initcall usage? (was: Re: [PATCH RESEND] i2c: designware: use module_platform_driver)

[Linus Walleij]

On Wed, Aug 28, 2013 at 11:57 AM, Wolfram Sang <wsa at the-dreams.de> wrote:
> On Tue, Aug 20, 2013 at 04:32:28PM +0800, Zhangfei Gao wrote:

>> Instead of use platform_driver_probe, use module_platform_driver
>> To support deferred probing
>> Also subsys_initcall may too early to auto set pinctl
>>
>> Signed-off-by: Zhangfei Gao <zhangfei.gao at linaro.org>
>> Acked-by: Baruch Siach <baruch at tkos.co.il>
>
> This patch is tougher than it looks. You need it, because
> subsys_initcall may be too early for pinctrl.

pinctrl is initialized very early, core_initcall().

This is more a question of individual pin control drivers
and when they probe, and dependencies trying to take
a pinctrl handle before the pin controller is available
will be deferred. Even by those grabbed in the core
by drivers/base/pinctrl.c.

Yours,
Linus Walleij