[PATCH 0/2] Add the PCA9655E GPIO expander to Kobol Helios64

[Igor Velkov via B4 Relay]

On Rosen's binding v2 Krzysztof quoted the "onnn,pca9655",
"nxp,pca9555" form [1]. This series documents that form and adds its
first user, the expander on Kobol Helios64. Patch 1 is for the GPIO
tree, patch 2 for the Rockchip tree; they only meet in dtbs_check.

6dfda7947653 ("ARM: dts: marvell: armada-388: use onnn,pca9655
compatible") in linux-next lists "onnn,pca9655" alone on Clearfog and
Helios4; with this binding they would need the fallback as well.

Tested on Helios64 (7.3-rc6 with this DTB): pca953x binds at 2-0020,
all 16 lines read as inputs, and the interrupt on GPIO0_B1 is
registered and stays quiet. Interrupt delivery is not tested: nothing
is connected to the P5 header.

[1] https://lore.kernel.org/r/20261009-venomous-carmine-locust-f788ca@quoll

---
Igor Velkov (2):
      dt-bindings: gpio: pca95xx: add onnn,pca9655 with nxp,pca9555 fallback
      arm64: dts: rockchip: Add the GPIO expander to Kobol Helios64

 .../devicetree/bindings/gpio/gpio-pca95xx.yaml       |  3 +++
 .../boot/dts/rockchip/rk3399-kobol-helios64.dts      | 20 ++++++++++++++++++++
 2 files changed, 23 insertions(+)
---
base-commit: 36b190eca882ecd39b5354f7ee995f939dc6d885
change-id: 20261009-helios64-pca9655-39643c2acf4d

Best regards,
-- 
Igor Velkov <iav@xxxxxx>