diff options
| author | Yu Chen <[email protected]> | 2020-09-10 08:00:12 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2020-09-10 18:56:38 +0200 |
| commit | 7a6ff4c4cbc3570a1ae483a833b3fb12b1a56a9d (patch) | |
| tree | f7d6e3bd385d4239704230d7893ff2f62a39b302 /tools/perf/scripts/python/syscall-counts.py | |
| parent | d00451c8118f8f7ab8e057bc6ee2f8b7d70b6a1c (diff) | |
misc: hisi_hikey_usb: Driver to support onboard USB gpio hub on Hikey960
The HiKey960 has a fairly complex USB configuration due to it
needing to support a USB-C port for host/device mode and multiple
USB-A ports in host mode, all using a single USB controller.
See schematics here:
https://github.com/96boards/documentation/raw/master/consumer/hikey/hikey960/hardware-docs/HiKey960_Schematics.pdf
This driver acts as a usb-role-switch intermediary, intercepting
the role switch notifications from the tcpm code, and passing
them on to the dwc3 core.
In doing so, it also controls the onboard hub and power gpios in
order to properly route the data lines between the USB-C port
and the onboard hub to the USB-A ports.
Signed-off-by: Yu Chen <[email protected]>
[jstultz: Major rework to make the driver a usb-role-switch
intermediary]
Signed-off-by: John Stultz <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
Link: https://lore.kernel.org/r/c263f72e1d803c18c45a69ce2c333e79a7ed89ff.1599717402.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions