diff options
| author | Roger Quadros <rogerq@ti.com> | 2017-04-05 13:39:31 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2017-04-11 10:58:31 +0300 |
| commit | 9840354ff429d4a392a96dff5ab6b5df609b8dc1 (patch) | |
| tree | 27cfaad3e008de499e821bf9ddf0d824345b06c0 /drivers/usb/dwc3/Kconfig | |
| parent | 41ce1456e1dbbc7355d0fcc10cf7c337c13def24 (diff) | |
usb: dwc3: Add dual-role support
If dr_mode is "otg" then support dual role mode of operation.
Currently this mode is only supported when an extcon handle is
present in the dwc3 device tree node. This is needed to
get the ID status events of the port.
We're using a workqueue to manage the dual-role state transitions
as the extcon notifier (dwc3_drd_notifier) is called in an atomic
context by extcon_sync() and this doesn't go well with
usb_del_gadget_udc() causing a lockdep and softirq warning.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc3/Kconfig')
| -rw-r--r-- | drivers/usb/dwc3/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index c5aa235863e8..aee55114d269 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -41,6 +41,7 @@ config USB_DWC3_GADGET config USB_DWC3_DUAL_ROLE bool "Dual Role mode" depends on ((USB=y || USB=USB_DWC3) && (USB_GADGET=y || USB_GADGET=USB_DWC3)) + depends on (EXTCON=y || EXTCON=USB_DWC3) help This is the default mode of working of DWC3 controller where both host and gadget features are enabled. |