[PATCH 01/10] gpio: pxa: set initcall level to module init

[Haojian Zhuang]

On 26 January 2013 05:01, Robert Jarzmik <robert.jarzmik at free.fr> wrote:
> Haojian Zhuang <haojian.zhuang at linaro.org> writes:
>
>> gpio & pinctrl driver are used together. The pinctrl driver is already
>> launched before gpio driver in Makefile. So set gpio driver to module
>> init level. Otherwise, the sequence will be inverted.
> Hi Haojian,
>
> If you switch gpio to module level, and as some modules use gpios in their init
> path, isn't it possible that some modules will fail their init, as GPIO API
> won't provide the gpio_*_value() functions ?
>

gpio_request() should return EPROBE_DEFER, then the driver is using gpio API
fails and it should be retried after a while. At that time, gpio
driver should be launched
properly.

Regards
Haojian