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

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Message-ID: <20250816033327.11359-2-ziyao@disroot.org>
Date: Sat, 16 Aug 2025 03:33:25 +0000
From: Yao Zi <ziyao@...root.org>
To: Philipp Zabel <p.zabel@...gutronix.de>,
	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>
Cc: 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 reset controller of Loongson 2K0300 SoC

Different from previous Loongson SoCs, 2K0300 integrates a reset
controller that provides reset signals represented by contiguous,
distinct register bits for almost every SoC function block. This series
adds its dt-binding and implements its support through reset-simple
driver.

Reset functionalities are tested with UARTs and GPIO module, it's
verified the module won't work with the corresponding reset asserted.

The devicetree patch (PATCH 3) depends on series "Support pinctrl for
Loongson 2K0300 SoC" for a clean apply. Thanks for your time and review.

[1]: https://lore.kernel.org/all/20250811163749.47028-2-ziyao@disroot.org/

Yao Zi (3):
  dt-bindings: reset: Document reset controller of Loongson 2K0300 SoC
  reset: simple: Support Loongson 2K0300 SoC
  LoongArch: dts: Add reset controller for Loongson 2K0300

 .../reset/loongson,ls2k0300-reset.yaml        | 35 ++++++++++
 arch/loongarch/boot/dts/loongson-2k0300.dtsi  | 17 +++++
 drivers/reset/reset-simple.c                  |  2 +
 .../reset/loongson,ls2k0300-reset.h           | 70 +++++++++++++++++++
 4 files changed, 124 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reset/loongson,ls2k0300-reset.yaml
 create mode 100644 include/dt-bindings/reset/loongson,ls2k0300-reset.h

-- 
2.50.1