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charset="utf-8" dwc3_google_probe() zero initialises struct dwc3_probe_data and never assigns its properties member. The unspecified state of gsbuscfg0_reqinfo is encoded as DWC3_GSBUSCFG0_REQINFO_UNSPECIFIED (0xffffffff), not as zero, so dwc3_get_software_properties() reads the zeroed field as a value the glue explicitly requested: if (properties->gsbuscfg0_reqinfo !=3D DWC3_GSBUSCFG0_REQINFO_UNSPECIFIED) { dwc->gsbuscfg0_reqinfo =3D properties->gsbuscfg0_reqinfo; return; } Two things follow. dwc3_config_soc_bus() programs GSBUSCFG0.REQINFO with zero on hardware that never asked for it, and the early return skips the walk over the parent devices, so a swnode or device tree supplied snps,gsbuscfg0-reqinfo would be ignored. Assign DWC3_DEFAULT_PROPERTIES so the unset fields carry their unspecified sentinels and the controller is left alone. Fixes: 8995a37371bf ("usb: dwc3: Add Google Tensor SoC DWC3 glue driver") Signed-off-by: Radhey Shyam Pandey Acked-by: Thinh Nguyen --- drivers/usb/dwc3/dwc3-google.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/dwc3/dwc3-google.c b/drivers/usb/dwc3/dwc3-google.c index 60ee4cc99b28..a01ca23cb6a8 100644 --- a/drivers/usb/dwc3/dwc3-google.c +++ b/drivers/usb/dwc3/dwc3-google.c @@ -442,6 +442,7 @@ static int dwc3_google_probe(struct platform_device *pd= ev) probe_data.dwc =3D &google->dwc; probe_data.res =3D res; probe_data.ignore_clocks_and_resets =3D true; + probe_data.properties =3D DWC3_DEFAULT_PROPERTIES; ret =3D dwc3_core_probe(&probe_data); if (ret) { ret =3D dev_err_probe(dev, ret, "failed to register DWC3 Core\n"); base-commit: 6a746cd265aed59107ebdaa9ce039bb832922969 --=20 2.43.0