From: Light Hsieh <[email protected]>
In the future we want to be able to build the MediaTek pinctrl driver,
based on paris, as kernel module. This patch allows pinctrl-paris.c, the
external interrupt controller mtk-eint.c, and pinctrl-mtk-common-v2.c to
be loadable as module.
The following is the rationale for determining whether mtk-eint.c,
pinctrl-mtk-common-v2.c, and pinctrl-paris.c are built as loadable module:
1. drivers/pinctrl/mediatek/Kconfig:
1.1 PINCTRL_MTXXXX: change from bool to tristate. It is specified in
defconfig file. MTXXXX can only be the user of pinctrl-paris,
which can MT6765 or MT8183. The patch for changing
PINCTRL_MT6765 from bool to tristate will be given as the next
patch of the patch series.
1.2 PINCTRL_MTK_PARIS: change from bool to tristate and select
PINCTRL_MTK_V2. No need to specify in defconfig file.
* PINCTRL_MTK_PARIS will be y if any PINCTRL_MTXXXX selecting
PINCTRL_MTK_PARIS is y.
* PINCTRL_MTK_PARIS will be n if all PINCTRL_MTXXXX selecting
PINCTRL_MTK_PARIS is n.
* PINCTRL_MTK_PARIS will be m if some PINCTRL_MTXXXX selecting
PINCTRL_MTK_PARIS are m and other PINCTRL_MTXXXX selecting
PINCTRL_MTK_PARIS are n.
1.3 PINCTRL_MTK_MOORE: select EINT_MTK and PINCTRL_MTK_V2. It is make
to be ready for building as loadable kernel module because it
is not used on Android kernel.
1.4 PINCTRL_MTK_V2: add this tristate config which depends on
PINCTRL_MTK_PARIS and PINCTRL_MTK_MOORE. No need to specify in
defconfig file.
* PINCTRL_MTK_V2 will be y if either PINCTRL_MTK_PARIS or
PINCTRL_MTK_MOORE is y.
* PINCTRL_MTK_V2 will be n if both PINCTRL_MTK_PARIS and
PINCTRL_MTK_MOORE are n.
* PINCTRL_MTK_V2 will be m if PINCTRL_MTK_PARIS is m and
PINCTRL_MTK_MOORE is n.
1.5 EINT_MTK: change from bool to tristate and add rule for default.
No need to specify in defconfig file.
* First rule: determine if EINT_MTK is y or n according to
selection of PINCTRL_MTK or PINCTRL_MTK_MORE.
* Second rule: determine if EINT_MTK is y, m, or n according to
selection of PINCTRL_MTK_PARIS.
2. drivers/pinctrl/mediatek/Makefile: Use PINCTRL_MTK_V2 to determine
if pinctrl-mtk-common-v2.c is built as loadable module or
built-in.
Light Hsieh (2):
pinctrl: mediatek: make MediaTek pinctrl v2 driver ready for buidling
loadable module
pinctrl: mediatek: make MediaTek MT6765 pinctrl ready for buiding
loadable module
drivers/pinctrl/mediatek/Kconfig | 13 ++++++++++---
drivers/pinctrl/mediatek/Makefile | 5 +++--
drivers/pinctrl/mediatek/mtk-eint.c | 9 +++++++++
drivers/pinctrl/mediatek/pinctrl-mt6765.c | 4 ++++
drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c | 24 ++++++++++++++++++++++++
drivers/pinctrl/mediatek/pinctrl-paris.c | 6 ++++++
6 files changed, 56 insertions(+), 5 deletions(-)
--
1.8.1.1.dirty