linux-kernel - [PATCH v4 0/1] gpio: add driver for Mellanox BlueField GPIO controller

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Message-Id: <cover.1550783880.git.sramani@mellanox.com>
Date:   Thu, 21 Feb 2019 16:32:54 -0500
From:   Shravan Kumar Ramani <sramani@...lanox.com>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Cc:     Shravan Kumar Ramani <sramani@...lanox.com>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v4 0/1] gpio: add driver for Mellanox BlueField GPIO controller

Changes since v3
 - the naming scheme has been fixed to remove double underscores and use
standard variable names
 - the locking has been updated to protect the entire read/modify
operations.

Regarding the suggested use of the generic MMIO library, I noticed that
bgpio_init only allows for either dirin or dirout to be set, never both.
But since our controller has 2 separate registers, using bgpio_init
might not be possible here.

Shravan Kumar Ramani (1):
  gpio: add driver for Mellanox BlueField GPIO controller

 drivers/gpio/Kconfig      |   6 ++
 drivers/gpio/Makefile     |   1 +
 drivers/gpio/gpio-mlxbf.c | 222 ++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 229 insertions(+)
 create mode 100644 drivers/gpio/gpio-mlxbf.c

-- 
2.1.2