[PATCH v2 0/4] USB-PD TCPM improvements

[Anand Moon]

Hi Sebastian,

On Thu, 27 Feb 2025 at 00:15, Sebastian Reichel
<sebastian.reichel at collabora.com> wrote:
>
> Hi,
>
> I have a couple of fixes/improvements for the TCPM code. Three are fixing
> actual problems I noticed on the Rock 5B, which prevented booting up the
> system. One of them simply adds an error print before potentially committing
> hara-kiri by triggering a hard reset, which helps people understanding
> why their boards reset themself in case there are more problems. I've
> recently added the same print to the kernel TCPM code.
>
I have encountered issues with the Raspberry Pi Type C power supply on
a few occasions.
Thanks for these changes, but it dose not resolve the issue completely.

Do you have plans to add a device tree node for this board?

> Changes since PATCHv1:
>  * https://lore.kernel.org/u-boot/20241031175404.114773-5-sebastian.reichel@collabora.com/
>  * rebased to v2025.04-rc3 (no changes needed)
>
I am observing the following logs.

Radxa 65W power supply with a USB-C connector.
--------------------------------------------------------------------
U-Boot 2025.04-rc3-00011-g3ddae9d42a89 (Feb 27 2025 - 09:36:45 +0530)

Model: Radxa ROCK 5B
SoC:   RK3588
DRAM:  8 GiB
fusb302 usb-typec at 22: TCPM: data role mismatch, initiating error recovery
fusb302 usb-typec at 22: TCPM: Unrecognized ctrl message type 0x0
DDR 9fa84341ce typ 24/09/06-09:51:11,fwver: v1.18

With Raspberry Pi 4 Type C charger
--------------------------------------------------------------------
U-Boot 2025.04-rc3-00011-g3ddae9d42a89 (Feb 27 2025 - 09:36:45 +0530)

Model: Radxa ROCK 5B
SoC:   RK3588
DRAM:  8 GiB
fusb302 usb-typec at 22: Initiating hard-reset, which might result in
machine power-loss.
fusb302 usb-typec at 22: TCPM: PD transmit data failed: -110
Core:  362 devices, 34 uclasses, devicetree: separate

With Raspberry Pi 5 Type C charger
--------------------------------------------------------------------
U-Boot 2025.04-rc3-00011-g3ddae9d42a89 (Feb 27 2025 - 09:36:45 +0530)

Model: Radxa ROCK 5B
SoC:   RK3588
DRAM:  8 GiB
fusb302 usb-typec at 22: Initiating hard-reset, which might result in
machine power-loss.
fusb302 usb-typec at 22: TCPM: PD transmit data failed: -110

Is there any issue with the power supply side
since Radxa also lists this issue with some power source

[1] https://wiki.radxa.com/Rock5/5b/power_supply

Thanks
-Anand