Hi Marek, On Sat, 31 May 2025 at 00:55, Marek Vasut <marek.vasut+renesas@xxxxxxxxxxx> wrote: > The V4H Sparrow Hawk board supplies PCIe controller input clock and PCIe > bus clock from separate outputs of Renesas 9FGV0441 clock generator chip. > Describe this split bus configuration in the board DT. The topology looks > as follows: > > ____________ _____________ > | R-Car PCIe | | PCIe device | > | | | | > | PCIe RX<|==================|>PCIe TX | > | PCIe TX<|==================|>PCIe RX | > | | | | > | PCIe CLK<|======.. ..======|>PCIe CLK | > '------------' || || '-------------' > || || > ____________ || || > | 9FGV0441 | || || > | | || || > | CLK DIF0<|======'' || > | CLK DIF1<|=========='' > | CLK DIF2<| > | CLK DIF3<| > '------------' > > Signed-off-by: Marek Vasut <marek.vasut+renesas@xxxxxxxxxxx> Thanks for your patch! > V2: Use pciec0_rp/pciec1_rp phandles to refer to root port moved to core r8a779g0.dtsi Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> I understand this has a hard dependency on [PATCH v2 1/3] (and on enabling CONFIG_PCI_PWRCTRL_SLOT), so I cannot apply this before that patch is upstream? 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