Hi Peter, See comments by rob+dt: https://lore.kernel.org/linux-rockchip/CAL_JsqJwNdUfoYM8SZmOgMG9iAyZkJ4-kzjjiDDm_mdmghTEOA@xxxxxxxxxxxxxx/ > Presumably you are getting lucky here (with link order). The kernel > has no logic to decide which driver to bind to if there are 2 matching > drivers. Due to the fall back string you make a mess with two drivers. Don't use dwc3-of-simple.c (only for rk3399 and legacy support. Not for new SoCs), because core.c has now reset support. You are creating a race which driver get probed first. Handle your quirks in core. Johan On 2/26/22 19:41, Peter Geis wrote: > The rk3568 dwc3 controller is backwards compatible with the rk3399 dwc3 > controller. > Add support for it to the dwc3-of-simple driver. > > Signed-off-by: Peter Geis <pgwipeout@xxxxxxxxx> > --- > drivers/usb/dwc3/dwc3-of-simple.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c > index 57ba9427ad74..d9d1c5bfac3f 100644 > --- a/drivers/usb/dwc3/dwc3-of-simple.c > +++ b/drivers/usb/dwc3/dwc3-of-simple.c > @@ -195,6 +195,10 @@ static const struct of_device_id of_dwc3_simple_match[] = { > .compatible = "rockchip,rk3399-dwc3", > .data = &dwc3_of_simple_data_rk3399, > }, > + { > + .compatible = "rockchip,rk3568-dwc3", > + .data = &dwc3_of_simple_data_rk3399, > + }, > { > .compatible = "sprd,sc9860-dwc3", > },
