gpio: omap: Allow building as a loadable module

We currently get all kinds of errors building the omap gpio driver
as a module starting with:

undefined reference to `omap2_gpio_resume_after_idle'
undefined reference to `omap2_gpio_prepare_for_idle'
...

Let's fix the issue by adding inline functions to the header.
Note that we can now also remove the two unused functions for
omap_set_gpio_debounce and omap_set_gpio_debounce_time.

Then doing rmmod on the module produces further warnings
because of missing exit related functions. Let's add those.

And finally, we can make the Kconfig entry just a tristate
option that's selected for omaps.

Cc: Javier Martinez Canillas <[email protected]>
Cc: Kevin Hilman <[email protected]>
Cc: Nishanth Menon <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>
Reviewed-by: Grygorii Strashko <[email protected]>
Acked-by: Santosh Shilimkar <[email protected]>
Reviewed-by: Felipe Balbi <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>

0 files changed, 0 insertions, 0 deletions