On 13/05/16 21:13, Rob Herring wrote: > On Fri, May 13, 2016 at 5:03 AM, Roger Quadros <rog...@ti.com> wrote: >> From: Yoshihiro Shimoda <yoshihiro.shimoda...@renesas.com> >> >> Since some host controller (e.g. EHCI) needs a companion host controller >> (e.g. OHCI), this patch adds such a configuration to use it in the OTG >> core. >> >> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda...@renesas.com> >> Signed-off-by: Roger Quadros <rog...@ti.com> >> Acked-by: Peter Chen <peter.c...@nxp.com> >> --- >> Documentation/devicetree/bindings/usb/generic.txt | 3 +++ >> drivers/usb/common/usb-otg.c | 32 >> ++++++++++++++++------- >> include/linux/usb/otg.h | 7 ++++- >> 3 files changed, 32 insertions(+), 10 deletions(-) >> >> diff --git a/Documentation/devicetree/bindings/usb/generic.txt >> b/Documentation/devicetree/bindings/usb/generic.txt >> index f6866c1..1db1c33 100644 >> --- a/Documentation/devicetree/bindings/usb/generic.txt >> +++ b/Documentation/devicetree/bindings/usb/generic.txt >> @@ -27,6 +27,9 @@ Optional properties: >> - otg-controller: phandle to otg controller. Host or gadget controllers can >> contain this property to link it to a particular OTG >> controller. >> + - hcd-needs-companion: must be present if otg controller is dealing with >> + EHCI host controller that needs a companion OHCI host >> + controller. > > I thought the conclusion was this is not needed?
This is still needed to differentiate between primary+shared HCD case vs primary + primary-companion HCD case. > > One thing that is not clear here is otg-controller is a host or device > property while hcd-needs-companion is an OTG controller property. > These lists should be separated. Agreed. I'll fix that up. cheers, -roger -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
