Re: [PATCH 0/7] usb: typec: ucsi: fix several issues manifesting on Qualcomm platforms

[Johan Hovold <johan@kernel.org>]

On Wed, Mar 13, 2024 at 05:54:10AM +0200, Dmitry Baryshkov wrote:
> Fix several issues discovered while debugging UCSI implementation on
> Qualcomm platforms (ucsi_glink). With these patches I was able to
> get a working Type-C port managament implementation. Tested on SC8280XP
> (Lenovo X13s laptop) and SM8350-HDK.

> Dmitry Baryshkov (7):
>       usb: typec: ucsi: fix race condition in connection change ACK'ing
>       usb: typec: ucsi: acknowledge the UCSI_CCI_NOT_SUPPORTED
>       usb: typec: ucsi: make ACK_CC_CI rules more obvious
>       usb: typec: ucsi: allow non-partner GET_PDOS for Qualcomm devices
>       usb: typec: ucsi: limit the UCSI_NO_PARTNER_PDOS even further
>       usb: typec: ucsi: properly register partner's PD device

>       soc: qcom: pmic_glink: reenable UCSI on sc8280xp

I just gave this series a quick spin on my X13s and it seems there are
still some issues that needs to be resolved before merging at least the
final patch in this series:

[    7.786167] ucsi_glink.pmic_glink_ucsi pmic_glink.ucsi.0: unknown error 0
[    7.786445] ucsi_glink.pmic_glink_ucsi pmic_glink.ucsi.0: UCSI_GET_PDOS failed (-5)
[    7.883493] ucsi_glink.pmic_glink_ucsi pmic_glink.ucsi.0: unknown error 0
[    7.883614] ucsi_glink.pmic_glink_ucsi pmic_glink.ucsi.0: UCSI_GET_PDOS failed (-5)
[    7.905194] ucsi_glink.pmic_glink_ucsi pmic_glink.ucsi.0: unknown error 0
[    7.905295] ucsi_glink.pmic_glink_ucsi pmic_glink.ucsi.0: UCSI_GET_PDOS failed (-5)
[    7.913340] ucsi_glink.pmic_glink_ucsi pmic_glink.ucsi.0: unknown error 0
[    7.913409] ucsi_glink.pmic_glink_ucsi pmic_glink.ucsi.0: UCSI_GET_PDOS failed (-5)

I see these errors on boot both with and without my charger and ethernet
device connected. 

I'm afraid I won't have to time to help debug this myself at least for
another week.

Johan