Hi Markus, All, On Sat, Apr 15, 2017 at 9:55 PM, SF Markus Elfring <elfr...@users.sourceforge.net> wrote: > Hello, > > A preprocessor symbol like “CONFIG_GENERIC_PINCTRL_GROUPS” was introduced > by the commit c033a718f615b6b3ddc83ce3e0a217c30bd09cb5 (“pinctrl: stricten up > generic group code”) on 2017-01-03. Some functions are only available then > when this macro is defined.
Yes because the pinctrl driver can be used without this configuration by some drivers. > I have got the impression that the corresponding programming interface is used > by the source file “drivers/pinctrl/freescale/pinctrl-imx.c” unconditionally. > How do you think about to extend specifications for conditional compilation > there? However the imx pinctrl driver _absolutely_ needs this configuration to work. That is why it is selected automatically when the driver is enabled [1]. Therefore it isn't possible to build the driver without GENERIC_PINCTRL_GROUPS and so adding conditions is not necessary. Regards, Gary [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/pinctrl/freescale/Kconfig#n3
