Hi Marek, Thanks for your patch! On Tue, Sep 7, 2021 at 4:45 PM <marek.vasut@xxxxxxxxx> wrote: > From: Marek Vasut <marek.vasut+renesas@xxxxxxxxx> > > Add COMMON_CLK dependency, otherwise the following build error occurs: > arm-linux-gnueabi-ld: drivers/pci/controller/pcie-rcar-host.o: in function `rcar_pcie_aarch32_abort_handler': > pcie-rcar-host.c:(.text+0xdd0): undefined reference to `__clk_is_enabled' This is a link failure for the host driver... > This should be OK, since all platforms shipping this controller also > need COMMON_CLK enabled for their clock driver. > > Fixes: a115b1bd3af0 ("PCI: rcar: Add L1 link state fix into data abort hook") > Signed-off-by: Marek Vasut <marek.vasut+renesas@xxxxxxxxx> > Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> > Cc: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> > Cc: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx> > Cc: Stephen Boyd <sboyd@xxxxxxxxxx> > Cc: Wolfram Sang <wsa@xxxxxxxxxxxxx> > Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> > Cc: linux-renesas-soc@xxxxxxxxxxxxxxx > --- > +CC Stephen, please double-check whether this is the right approach or > whether there is some better option > --- > drivers/pci/controller/Kconfig | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/pci/controller/Kconfig b/drivers/pci/controller/Kconfig > index 326f7d13024f..ee6f5e525d3a 100644 > --- a/drivers/pci/controller/Kconfig > +++ b/drivers/pci/controller/Kconfig > @@ -66,6 +66,7 @@ config PCI_RCAR_GEN2 > config PCIE_RCAR_HOST > bool "Renesas R-Car PCIe host controller" > depends on ARCH_RENESAS || COMPILE_TEST > + depends on COMMON_CLK This part is OK. > depends on PCI_MSI_IRQ_DOMAIN > help > Say Y here if you want PCIe controller support on R-Car SoCs in host > @@ -74,6 +75,7 @@ config PCIE_RCAR_HOST > config PCIE_RCAR_EP > bool "Renesas R-Car PCIe endpoint controller" > depends on ARCH_RENESAS || COMPILE_TEST > + depends on COMMON_CLK ... so why did you add a dependency to the endpoint driver, too? > depends on PCI_ENDPOINT > help > Say Y here if you want PCIe controller support on R-Car SoCs in 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