From: Asmaa Mnebhi <Asmaa@mellanox.com>
To: bgolaszewski@baylibre.com, linus.walleij@linaro.org
Cc: Asmaa Mnebhi <Asmaa@mellanox.com>, linux-kernel@vger.kernel.org
Subject: [PATCH v2 0/1] gpio: add driver for Mellanox BlueField 2 GPIO controller
Date: Tue, 25 Feb 2020 11:32:52 -0500 [thread overview]
Message-ID: <cover.1582647809.git.Asmaa@mellanox.com> (raw)
This patch adds support for the GPIO controller used by Mellanox BlueFIeld
2 SOCs.
This patch addresses the following issues:
1) Split in one gpio_chip per instance (there are 3 instances)
2) Use bgpio_init() for set/clear/get gpio values
3) The direction settings need some special HW lock/unlock to happen and it also uses 2 registers to set the direction instead of one.
So direction_input and direction_output are overriden.
Asmaa Mnebhi (1):
gpio: add driver for Mellanox BlueField 2 GPIO controller
drivers/gpio/Kconfig | 7 +
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-mlxbf2.c | 345 +++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 353 insertions(+)
create mode 100644 drivers/gpio/gpio-mlxbf2.c
--
2.1.2
next reply other threads:[~2020-02-25 16:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-25 16:32 Asmaa Mnebhi [this message]
2020-02-25 16:32 ` [PATCH v2 1/1] " Asmaa Mnebhi
2020-02-25 16:42 ` Asmaa Mnebhi
2020-02-28 23:14 ` Linus Walleij
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