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

[Peter Robinson]

On Thu, 27 Feb 2025 at 06:01, Anand Moon <linux.amoon at gmail.com> wrote:

> 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.
>

I don't believe the RPi Type-C power supply supports power delivery.


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

For which 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
>