[PATCH] PCI: imx6: fix building against pwrctrl

[Arnd Bergmann]

From: Arnd Bergmann <arnd@xxxxxxxx>

When endpoint mode is built-in, but pwrctrl support is in a loadable
module, the imx driver fails to build because the unused host
support still tries to link against pwrctrl:

ld.lld: error: undefined symbol: pci_pwrctrl_power_off_devices
>>> referenced by pci-imx6.c:1988 (drivers/pci/controller/dwc/pci-imx6.c:1988)
>>>               drivers/pci/controller/dwc/pci-imx6.o:(imx_pcie_shutdown) in archive vmlinux.a

Add one more select for this.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
----
There is already another fix pending that I sent earlier, see
https://lore.kernel.org/all/ajF_LyjOnINAHvA3@lizhi-Precision-Tower-5810/

If you prefer a combined patch, I can send an updated version,
or you can just fold the two into one commit when applying.
---
 drivers/pci/controller/dwc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig
index 7d49027c6736..49a7a2c50ca1 100644
--- a/drivers/pci/controller/dwc/Kconfig
+++ b/drivers/pci/controller/dwc/Kconfig
@@ -128,6 +128,7 @@ config PCI_IMX6_EP
 	select PCIE_DW_EP
 	select PCI_HOST_COMMON
 	select PCI_IMX6
+	select PCI_PWRCTRL_GENERIC
 	help
 	  Enables support for the PCIe controller in the i.MX SoCs to
 	  work in endpoint mode. The PCI controller on i.MX is based
-- 
2.39.5