linux-kernel - [PATCH 0/3] Support GPIO controller of Loongson 2K0300 SoC

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]

Message-ID: <20250816035027.11727-2-ziyao@disroot.org>
Date: Sat, 16 Aug 2025 03:50:25 +0000
From: Yao Zi <ziyao@...root.org>
To: Yinbo Zhu <zhuyinbo@...ngson.cn>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Huacai Chen <chenhuacai@...nel.org>,
	WANG Xuerui <kernel@...0n.name>,
	Philipp Zabel <p.zabel@...gutronix.de>
Cc: linux-gpio@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	loongarch@...ts.linux.dev,
	Mingcong Bai <jeffbai@...c.io>,
	Kexy Biscuit <kexybiscuit@...c.io>,
	Yao Zi <ziyao@...root.org>
Subject: [PATCH 0/3] Support GPIO controller of Loongson 2K0300 SoC

This series adds support for Loongson 2K0300's GPIO controller. While
being mostly identical to previous implementation, its interrupt
functionality hasn't been implemented in gpio-loongson-64bit.c. PATCH 2
implements its interrupt support with an IRQCHIP, and the code could be
reused for other Loongson SoCs with similar interrupt functionality like
2K1500 and 2K2000.

Tested on CTCISZ Forever Pi, reading/writing GPIOs works correctly, and
both level and edge interrupts could be triggered.

The devicetree patch depends on series "Support reset controller of
Loongson 2K0300 SoC"[1] for a clean apply. Thanks for your time and review.

[1]: https://lore.kernel.org/all/20250816033327.11359-2-ziyao@disroot.org/

Yao Zi (3):
  dt-bindings: gpio: loongson: Document GPIO controller of 2K0300 SoC
  gpio: loongson-64bit: Add support for Loongson 2K0300 SoC
  LoongArch: dts: Add GPIO controller for Loongson 2K0300

 .../bindings/gpio/loongson,ls-gpio.yaml       |  28 ++-
 arch/loongarch/boot/dts/loongson-2k0300.dtsi  |  20 ++
 drivers/gpio/Kconfig                          |   1 +
 drivers/gpio/gpio-loongson-64bit.c            | 191 +++++++++++++++++-
 4 files changed, 232 insertions(+), 8 deletions(-)

-- 
2.50.1