From: <light.hsieh@mediatek.com>
To: <linus.walleij@linaro.org>
Cc: <linux-mediatek@lists.infradead.org>,
<linux-gpio@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<sean.wang@kernel.org>, <kuohong.wang@mediatek.com>,
Light Hsieh <light.hsieh@mediatek.com>
Subject: [PATCH v4 0/2] pinctrl: make MediaTek pinctrl v2 driver and MT6765 pinctrl driver ready for building loadable module
Date: Tue, 10 Mar 2020 15:39:44 +0800 [thread overview]
Message-ID: <1583825986-8189-1-git-send-email-light.hsieh@mediatek.com> (raw)
From: Light Hsieh <light.hsieh@mediatek.com>
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: make MediaTek pinctrl v2 driver ready for buidling loadable
module
pinctrl: make MediaTek MT6765 pinctrl ready for buidling loadable
module
drivers/pinctrl/mediatek/Kconfig | 15 ++++++++++++---
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 ++++++
drivers/pinctrl/pinconf-generic.c | 1 +
7 files changed, 59 insertions(+), 5 deletions(-)
--
1.8.1.1.dirty
next reply other threads:[~2020-03-10 7:40 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-10 7:39 light.hsieh [this message]
2020-03-10 7:39 ` [PATCH v4 1/2] pinctrl: make MediaTek pinctrl v2 driver ready for buidling loadable module light.hsieh
2020-03-15 21:35 ` Sean Wang
2020-03-17 9:28 ` Light Hsieh
2020-03-17 19:57 ` Sean Wang
2020-03-10 7:39 ` [PATCH v4 2/2] pinctrl: make MediaTek MT6765 pinctrl " light.hsieh
2020-03-15 21:15 ` Sean Wang
2020-03-17 9:28 ` Light Hsieh
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