[PATCH 0/3] arm64: dts: rockchip: Add ArmSoM Sige7s support

Add support for the ArmSoM Sige7s, an RK3588S-based single-board
computer sharing its hardware design with the CoolPi 4B.

Document the board compatible with coolpi,pi-4b as a fallback,
extract the existing CoolPi 4B hardware description into a shared
dtsi, and add a Sige7s DTS containing its model and compatible.

The generated CoolPi 4B DTB is byte-for-byte identical before and
after the extraction. The Sige7s device tree differs only in its
root model and compatible properties.

Boot-tested on an ArmSoM Sige7s v1.0 board, which successfully
boots into userspace. This series retains the existing level of
hardware support provided by the CoolPi 4B device tree.

Validation:
- Build-tested both DTBs with the arm64 defconfig and W=1.
- Passed dt_binding_check for arm/rockchip.yaml.
- Passed DTB validation against the full processed schema set.
- Ran checkpatch --strict: no errors or checks; the two warnings
  ask whether MAINTAINERS needs updating for the added files.
  The files are covered by the existing subsystem entries.

Product documentation: https://docs.armsom.org/armsom-sige7s

AI assistance: Codex reviewed the series, ran the build and schema
checks, revised the commit messages and cover letter.


Jianfeng Liu (3):
  dt-bindings: arm: rockchip: Add ArmSoM Sige7s
  arm64: dts: rockchip: Extract common CoolPi 4B board description
  arm64: dts: rockchip: Add ArmSoM Sige7s board

 .../devicetree/bindings/arm/rockchip.yaml     |   6 +
 arch/arm64/boot/dts/rockchip/Makefile         |   1 +
 .../dts/rockchip/rk3588s-armsom-sige7s.dts    |  10 +
 .../boot/dts/rockchip/rk3588s-coolpi-4b.dts   | 936 +----------------
 .../boot/dts/rockchip/rk3588s-coolpi-4b.dtsi  | 941 ++++++++++++++++++
 5 files changed, 959 insertions(+), 935 deletions(-)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3588s-armsom-sige7s.dts
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3588s-coolpi-4b.dtsi

---
base-commit: 8f7df005a7564bd7ffa75da9c3085d5b996f1e16
branch: sige7s-next-20261020

-- 
2.47.3