[PATCH v3 0/2] arm64: dts: rockchip: add Tinker Board 3 and 3S device tree

From: Michael Opdenacker <michael.opdenacker@rootcommit.com>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	Heiko Stuebner <heiko@sntech.de>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	 linux-rockchip@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	 Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
	 Michael Opdenacker <michael.opdenacker@rootcommit.com>
Subject: [PATCH v3 0/2] arm64: dts: rockchip: add Tinker Board 3 and 3S device tree
Date: Tue, 18 Nov 2025 15:56:41 +0000 (UTC)	[thread overview]
Message-ID: <20251118-tinker3-v3-0-2903693f2ebb@rootcommit.com> (raw)

Add initial device tree support for Asus Tinker Board 3 [1] and 3S [2],
which are SBCs based on the Rockchip 3566 SoC.

The "3S" version ("S" for "storage") is just a regular Tinker Board 3
fitted with a 16 GB eMMC and a "mask ROM" DIP switch
(to mask the eMMC and enter "Mask ROM" mode for recovery).

This adds support for:
- Debug UART (/dev/ttyS2)
- SD card (/dev/mmcblk1)
- eMMC (/dev/mmcblk0, only on Tinker Board 3S)
- I2C:
  - i2c0 (internal bus with a PMIC and regulators)
  - i2c2 (internal bus with an at24 eeprom and an RTC device)
- USB 2.0 ports
- 2 GPIO LEDS

This code was tested on Tinker Board 3S using the "master"
branch of the Linux kernel.

[1] https://tinker-board.asus.com/series/tinker-board-3.html
[2] https://tinker-board.asus.com/series/tinker-board-3s.html

Changes in V3:
- rockchip.yaml: group Tinker Board 3/3S in the same section
- Remove this Acked-by as the code changed substantially:
  Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
- Remove "asus,rk3566-tinker-board-3" from rk3566-tinker-board-3s.dts,
  which conflicted with the change in rockchip.yaml and
  could create an issue if some code unexpectedly turns out
  to be compatible with 3 but not 3S.
  If you don't agree, than we can keep V2.

Changes in V2:
- Rename "Tinker board" to "Tinker Board"
  in commit messages and DT code
- Insert "-board" in DT file names
- Insert "-board" in new compatible string too
- Commit messages: change the way the references are introduced
  ("[1] https://..." instead of "Link: https://... [1]")
- Reorder alias properties and node names
- Add missing "cpu-supply" property to cpu nodes
- Use standard "eeprom@addr" node name for at24 eeprom
- DT commit message: add missing "Asus" before "Tinker"

Michael Opdenacker (2):
  dt-bindings: arm: rockchip: Add Asus Tinker Board 3 and 3S
  arm64: dts: rockchip: Add Asus Tinker Board 3 and 3S device tree

.../devicetree/bindings/arm/rockchip.yaml     |  11 +
 arch/arm64/boot/dts/rockchip/Makefile         |   2 +
 .../dts/rockchip/rk3566-tinker-board-3.dts    |  14 +
 .../dts/rockchip/rk3566-tinker-board-3.dtsi   | 280 ++++++++++++++++++
 .../dts/rockchip/rk3566-tinker-board-3s.dts   |  30 ++
 5 files changed, 337 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3566-tinker-board-3.dts
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3566-tinker-board-3.dtsi
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3566-tinker-board-3s.dts

---
Michael Opdenacker (2):
      dt-bindings: arm: rockchip: Add Asus Tinker Board 3/3S
      arm64: dts: rockchip: Add Asus Tinker Board 3 and 3S device tree

 .../devicetree/bindings/arm/rockchip.yaml          |   7 +
 arch/arm64/boot/dts/rockchip/Makefile              |   2 +
 .../boot/dts/rockchip/rk3566-tinker-board-3.dts    |  14 ++
 .../boot/dts/rockchip/rk3566-tinker-board-3.dtsi   | 280 +++++++++++++++++++++
 .../boot/dts/rockchip/rk3566-tinker-board-3s.dts   |  30 +++
 5 files changed, 333 insertions(+)
---
base-commit: e7c375b181600caf135cfd03eadbc45eb530f2cb
change-id: 20251117-tinker3-88e32dfa9138

Best regards,
-- 
Michael Opdenacker <michael.opdenacker@rootcommit.com>