Hi Hervé, Thanks for your patch! On Thu, Apr 14, 2022 at 9:40 AM Herve Codina <herve.codina@xxxxxxxxxxx> wrote: > The PCI rcar-gen2 does not call any clk_prepare_enable(). Correct, this driver manages the clocks indirectly through Runtime PM. > This lead to an access failure when the driver tries to access > the IP (at least on a RZ/N1D platform). I expect adding power-domans = <&sysctrl>; to the pci_usb node makes this patch redundant. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds