Re: [PATCH v4 4/4] ARM: dts: vf: add Iris carrier board support for Colibri VF50 and VF61

[Krzysztof Kozlowski <krzk@kernel.org>]

On Thu, Aug 13, 2026 at 06:11:01PM +0200, Mehmet Fide wrote:
> From: Mehmet Fide <mehmet.fide@screeningeagle.com>
> 
> The Iris is a small off-the-shelf carrier board for the Colibri
> family. Describe what the board itself provides: Ethernet, one USB
> host and one OTG port, the pin header UARTs, i2c with the carrier
> RTC on it, the PWM pins on the X16 header, SPI and the microSD slot.
> The host port gets its VBUS through a regulator on SODIMM 129, and
> the two GPIOs that turn the RS232 transceivers on, SODIMM 102 and
> 104, are hogged. The touchscreen is an add-on rather than part of
> the board, so it is left out.
> 
> This describes an Iris V1.1. A V2.0 carries the same signals on the
> same pins; what it adds, and what this does not describe, is the
> regulator on SODIMM 100 that can cut power to the uSD slot.
> 
> Tested on a Colibri VF50 on an Iris V1.1 running 6.18: Ethernet at

Since you booted now on v7.2, drop the version description.

> 100Mbps/Full, a USB dongle enumerating once the VBUS regulator is in
> place, the RTC read back over i2c0, all three UARTs, the SPI
> controller registering, both PWM chips registering, the microSD
> slot, the EXT_IO pin group still applied next to the carrier hog
> group, and both hogs holding their pins.
> 
> Signed-off-by: Mehmet Fide <mehmet.fide@screeningeagle.com>
> ---
>  arch/arm/boot/dts/nxp/vf/Makefile             |   2 +
>  arch/arm/boot/dts/nxp/vf/vf-colibri-iris.dtsi | 126 ++++++++++++++++++
>  .../boot/dts/nxp/vf/vf500-colibri-iris.dts    |  14 ++
>  .../boot/dts/nxp/vf/vf610-colibri-iris.dts    |  14 ++

Good old ScreeningEagle/Proceq times, had a lot of fun with this tiny
tiny board and module.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof