linux-kernel - [PATCH v3 0/2] Add NVIDIA BlueField-3 GPIO driver and pin controller

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Message-ID: <cover.1676042188.git.asmaa@nvidia.com>
Date:   Fri, 10 Feb 2023 10:39:39 -0500
From:   Asmaa Mnebhi <asmaa@...dia.com>
To:     <linux-gpio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-acpi@...r.kernel.org>
CC:     Asmaa Mnebhi <asmaa@...dia.com>
Subject: [PATCH v3 0/2] Add NVIDIA BlueField-3 GPIO driver and pin controller

This series of patches creates a pin controller driver and GPIO
driver for NVIDIA BlueField-3 SoC.
The first patch creates a GPIO driver for handling interrupts and
allowing the change of direction and value of a GPIO if needed.
The second patch creates a pin controller driver for allowing a
select number of GPIO pins to be manipulated from userspace or
the kernel.

The BlueField-3 SoC gpio-mlxbf3.c driver handles different hardware registers
and logic that from gpio-mlxbf.c and gpio-mlxbf2.c.
For that reason, we have separate drivers for each generation.

Changes from v2->v3:
Addressed the following comments from maintainers:
- bgpio_init can handle direction_input and direction_output
- Update pinctrl Kconfig to select GPIO_MLXBF3
- remove unnecessary #includes from gpio-mlxbf3.c and pinctrl-mlxbf.c

Asmaa Mnebhi (2):
  Support NVIDIA BlueField-3 GPIO controller
  Support NVIDIA BlueField-3 pinctrl driver

 drivers/gpio/Kconfig            |   7 +
 drivers/gpio/Makefile           |   1 +
 drivers/gpio/gpio-mlxbf3.c      | 262 ++++++++++++++++++++++++
 drivers/pinctrl/Kconfig         |  10 +
 drivers/pinctrl/Makefile        |   1 +
 drivers/pinctrl/pinctrl-mlxbf.c | 341 ++++++++++++++++++++++++++++++++
 6 files changed, 622 insertions(+)
 create mode 100644 drivers/gpio/gpio-mlxbf3.c
 create mode 100644 drivers/pinctrl/pinctrl-mlxbf.c

-- 
2.30.1