Quoting John Stultz (2016-06-27 20:09:30)

Just a heads up, trying to build with this branch gives me:

drivers/usb/Kconfig:39:error: recursive dependency detected!
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/usb/Kconfig:39: symbol USB is selected by MOUSE_APPLETOUCH
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/input/mouse/Kconfig:187:        symbol MOUSE_APPLETOUCH depends on INPUT
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/input/Kconfig:8:        symbol INPUT is selected by VT
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/tty/Kconfig:12: symbol VT is selected by FB_STI
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/video/fbdev/Kconfig:674:        symbol FB_STI depends on FB
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/video/fbdev/Kconfig:5:  symbol FB is selected by DRM_KMS_FB_HELPER
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/gpu/drm/Kconfig:42:     symbol DRM_KMS_FB_HELPER is selected
by DRM_KMS_CMA_HELPER
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/gpu/drm/Kconfig:98:     symbol DRM_KMS_CMA_HELPER is selected by DRM_IMX
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/gpu/drm/imx/Kconfig:1:  symbol DRM_IMX depends on IMX_IPUV3_CORE
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/gpu/ipu-v3/Kconfig:1:   symbol IMX_IPUV3_CORE depends on
RESET_CONTROLLER
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/reset/Kconfig:4:        symbol RESET_CONTROLLER is selected by
USB_CHIPIDEA
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/usb/chipidea/Kconfig:1: symbol USB_CHIPIDEA depends on USB_EHCI_HCD
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"
drivers/usb/host/Kconfig:84:    symbol USB_EHCI_HCD depends on USB

Yeah, sorry I've updated the branch today with fixes reported by kbuild
robot. This problem starts to happen once I start selecting
RESET_CONTROLLER from the chipidea Kconfig symbol. I've layered another
patch on top to fix the build errors I'm seeing, although I'm not sure
it's a great solution.

drivers/usb/chipidea/otg.c: In function ?hw_write_otgsc?:
drivers/usb/chipidea/otg.c:120:2: warning: format ?%x? expects
argument of type ?unsigned int?, but argument 3 has type ?long
unsigned int? [-Wformat]
drivers/usb/chipidea/otg.c:120:2: warning: format ?%x? expects
argument of type ?unsigned int?, but argument 4 has type ?long
unsigned int? [-Wformat]

These are debug print warnings. Nothing to see here...

I haven't yet been able to test with this, as I need some other fixes
it seems too to deal with some of the iommu changes in my flo-WIP tree
(it can't find of_dma_configure), but will let you know how things
work once I have all that sorted.

Cool, thanks for testing.