linux-kernel - [PATCH v2 0/1] gpio: add driver for Mellanox BlueField 2 GPIO controller

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 25 Feb 2020 11:32:52 -0500
From:   Asmaa Mnebhi <Asmaa@...lanox.com>
To:     bgolaszewski@...libre.com, linus.walleij@...aro.org
Cc:     Asmaa Mnebhi <Asmaa@...lanox.com>, linux-kernel@...r.kernel.org
Subject: [PATCH v2 0/1] gpio: add driver for Mellanox BlueField 2 GPIO controller

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