On 11/5/18, Al Cooper [off-list ref] wrote:

+
+config USB_BRCM
+	tristate "Broadcom STB USB support"
+	depends on ARCH_BRCMSTB
+	select USB_OHCI_HCD_PLATFORM if USB_OHCI_HCD
+	select USB_EHCI_BRCM if USB_EHCI_HCD
+	select USB_XHCI_BRCM if USB_XHCI_HCD
+	select USB_XHCI_PLATFORM if USB_XHCI_HCD
+	select BRCM_USB_PHY if USB_OHCI_HCD || USB_EHCI_HCD || USB_XHCI_HCD
+	select GENERIC_PHY if BRCM_USB_PHY
+	default ARCH_BRCMSTB

Is there a build time dependency on the PHY layer? If not, I would suggest
dropping the last two 'select' statements. I would also suggest
making the dependency 'depends on ARCH_BRCMSTB || COMPILE_TEST'
to allow building it on other architecture for better build testing, and
dropping the 'default' line. Just add this to the defconfig like the other
drivers you have.

      Arnd