[PATCH v2 0/2] arm64: dts: rockchip: Add PWM fan and WWAN overlay for Radxa ROCK 3B

[Adam Wermuth]

The Radxa ROCK 3B has a 2-pin fan header and an M.2 B-key slot
intended for 4G/5G modules, neither of which is currently described
in the mainline device tree.

Patch 1 adds the PWM fan and ties it to the CPU thermal zone. Patch 2
adds a device tree overlay for the B-key slot, enabling the USB 2.0
host controller serving the slot as well as its power, RESET# and
W_DISABLE1# controls.

Pin assignments were checked against the ROCK 3B V1.51 schematic.
Tested on a ROCK 3B with a SIMCom SIM7600G-H module and a 5V fan,
running Linux 6.12 (OpenWrt) with the same changes applied.

Changes in v2:
- Move the USB host1 enablement and the WWAN slot handling into a new
  rk3568-rock-3b-wwan.dtso overlay, as the slot is not always
  populated (Jonas)
- Drop phy-supply from usb2phy1_host, as the M.2 slot has no VBUS
- Put the fan patch first, as it no longer depends on the others

v1: https://lore.kernel.org/linux-rockchip/20260924071445.441822-1-adam@xxxxxxxxxx/

Adam Wermuth (2):
  arm64: dts: rockchip: Add PWM fan to Radxa ROCK 3B
  arm64: dts: rockchip: Add WWAN overlay for Radxa ROCK 3B

 arch/arm64/boot/dts/rockchip/Makefile         |  5 ++
 .../dts/rockchip/rk3568-rock-3b-wwan.dtso     | 65 +++++++++++++++++++
 .../boot/dts/rockchip/rk3568-rock-3b.dts      | 51 +++++++++++++++
 3 files changed, 121 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3568-rock-3b-wwan.dtso


base-commit: 23d8f49fcae5d72b77744c7f349c12462c3bb748
-- 
2.43.0