From: Kun Yi <kunyi@google.com>
To: linus.walleij@linaro.org, linux-gpio@vger.kernel.org,
tmaimon77@gmail.com
Cc: linux-kernel@vger.kernel.org, avifishman70@gmail.com,
openbmc@lists.ozlabs.org, Kun Yi <kunyi@google.com>
Subject: [PATCH 0/2] Allow gpio-mmio to co-exist with pinctrl driver
Date: Wed, 17 Oct 2018 14:30:10 -0700 [thread overview]
Message-ID: <20181017213012.233957-1-kunyi@google.com> (raw)
This patchset is to resolve an issue found with Nuvoton pinctrl driver
when it uses a generic GPIO interface. Since the generic GPIO driver
stores the bgpio_data and bgpio_dir shadow register values and later on
modify based on the stored values, any change to the pin states in
between by the pinctrl driver is lost.
Kun Yi (2):
gpio: gpio-mmio: Allow volatile shadow regs
pinctrl: pinctrl-npcm7xx: Set BGPIOF_VOLATILE_REG
drivers/gpio/gpio-mmio.c | 50 +++++++++++++++--------
drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c | 3 +-
include/linux/gpio/driver.h | 2 +
3 files changed, 38 insertions(+), 17 deletions(-)
--
2.19.1.331.ge82ca0e54c-goog
next reply other threads:[~2018-10-17 21:30 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-17 21:30 Kun Yi [this message]
2018-10-17 21:30 ` [PATCH 1/2] gpio: gpio-mmio: Allow volatile shadow regs Kun Yi
2018-10-18 11:49 ` kbuild test robot
2018-10-30 12:06 ` Linus Walleij
2018-10-17 21:30 ` [PATCH 2/2] pinctrl: pinctrl-npcm7xx: Set BGPIOF_VOLATILE_REG Kun Yi
2018-10-30 12:08 ` Linus Walleij
2018-10-31 5:06 ` Kun Yi
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