Re: [PATCH] soc: qcom: pmic_glink: Avoid losing early rpmsg probe

[Dmitry Baryshkov]

On Mon, Jul 20, 2026 at 04:39:02PM +0200, Konrad Dybcio wrote:
> From: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
> 
> The PMIC GLINK rpmsg device can appear before the platform device has
> finished probing. In that case pmic_glink_rpmsg_probe() sees
> __pmic_glink as NULL and returns -ENODEV, which is treated as a fatal
> probe failure for the rpmsg endpoint.
> 
> If this race is hit, pg->ept is never installed and PMIC GLINK clients
> never receive the service-up notification. This may leave the system
> with no Type-C functionality and without battery/power supply
> management.
> 
> Return -EPROBE_DEFER when the rpmsg endpoint arrives before the platform
> device is ready.
> 
> Fixes: 58ef4ece1e41 ("soc: qcom: pmic_glink: Introduce base PMIC GLINK driver")
> Assisted-by: Codex:GPT-5.5
> Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
> ---
>  drivers/soc/qcom/pmic_glink.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>


-- 
With best wishes
Dmitry