Re: [PATCH 2/3] soc: qcom: pmic_glink: Add GIO pmic_glink instance

[Fenglin Wu <fenglin.wu@oss.qualcomm.com>]

On 11/11/2026 9:14 PM, Jeff Roach wrote:
> Hi Fenglin,
> 
> I tried this series on an HP OmniBook X 16 (X2 Elite "Mahua", DT boot,
> qcom,glymur-pmic-glink, 7.3-based kernel, firmware F.04). The RTC part
> works: rtc-qcom-gio reads the correct UTC time.
> 
> But UCSI breaks when pmic_glink_gio is bound, although the commit
> message says ucsi stays on the legacy interface:
> 
> - pmic_glink_gio loaded at boot: ucsi_glink fails with
>   "error -ETIMEDOUT: PPM init failed", no typec ports.
> - pmic_glink_gio blacklisted (patched pmic_glink still loaded): typec
>   ports and partners come up, plug/unplug is seen.
> - Same boot, then modprobe pmic_glink_gio: the RTC works and the ports
>   stay, but UCSI no longer sees any plug or unplug (old partners stay).
>   USB data and charging still work.
> 
> Happy to test a fix.
> 
> Jeff

Hi Jeff,

Thanks for testing the changes and reporting the issues.

I tested with all clients switched to use GIO interface. I confirmed
that battmgr, UCSI, altmode worked as expected. I should also test the
hybrid mode of only having RTC used on GIO and others left in PMIC
Glink. I thought I didn't push those client changes so those drivers
were not impacted and they should work as before.

I will test it this way and get back.

Thanks
Fenglin