On Wed, 2015-07-29 at 12:10 -0700, Tim Bird wrote: > On Tue, Jun 2, 2015 at 6:14 AM, Ivan T. Ivanov ivanov@xxxxxxxxxx> wrote: > > On recent Qualcomm platforms VBUS and ID lines are not routed to > > USB PHY LINK controller. Use extcon framework to receive connect > > and disconnect ID and VBUS notification. > > > > Signed-off-by: Ivan T. Ivanov ivanov@xxxxxxxxxx> > > --- > > Changes sice v2 [1]. > > > > * Simulate IRQ on extcon event - used to trigger OTG state machine. > > > > I have to admit that I couldn't test complete Chipidea OTG state machine, > > because my setup is little weird. I am using "qcom,usb-otg-ci" as PHY/OTG > > provider, "qcom,ehci-host" as host controller driver and "qcom,ci-hdrc" for > > device role. > > Ivan, > > Do you have patches for the code (presumably pmic code) where the vbus and id > lines are signaled? Presumably you've added some extcon_set_cable_state() calls > somewhere in your source tree, for this to work. I'm wondering if you > can share your > work in progress, or let me know when you plan to push that upstream? > Well, not exactly. Maybe change description is badly worded. I have DB410c where VBUS and ID lines are not routed to USB controller, but to GPIO. So from the chipidea core driver point of view ID and VBUS changes/IRQs are triggered from extcon driver "linux,extcon-usb-gpio" > I'm interested in testing the msm usb code (specifically host mode support) > on my dragonboard here. > Since yesterday, Felipe kindly merged simple usb-phy driver for 8x16[1]. Which allow just using "qcom,ci-hdrc" and "qcom,usb-8x16-phy" to have DRD support on 8x16 chipsets. I have tried to use "chipidea,usb2", but unfortunately quirks in "qcom,ci-hdrc" are required. Once we have similar usb-phy drivers for 8x60, 8064, 8074 and 8084, I believe the we can remove "qcom,usb-otg-xxx" monster. usb-phy driver for 8074 should be very similar to 8x16 one. Regards, Ivan [1] http://bit.ly/1U6IjK4 -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
