To save cost and simply the design, most host-only application will directly
tie VBUS to 5V power rail, but this prevents AM335x MUSB to transition to host
mode due VBUS sensing for OTG state machine.
These patches disable the first VBUS sensing in AM335x MUSB for host-only mode
to enable this use case.
Other usb phy drivers might have to handle differently for each dr_mode of the
associated controller, so the function which queries dr_mode is added to usb
common library for other use.
Bin Liu (3):
usb: of: add an api to get dr_mode by the phy node
usb: phy: correct the am335x phy header filename
usb: phy: phy-am335x: ignore first VBUS sensing for host-only mode
drivers/usb/common/common.c | 27 ++++++++++++++++++++++
drivers/usb/phy/phy-am335x-control.c | 16 +++++++++----
.../{am35x-phy-control.h => phy-am335x-control.h} | 8 ++++---
drivers/usb/phy/phy-am335x.c | 17 +++++++++-----
include/linux/usb/of.h | 6 +++++
5 files changed, 61 insertions(+), 13 deletions(-)
rename drivers/usb/phy/{am35x-phy-control.h => phy-am335x-control.h} (68%)
--
1.8.4
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