usb: dwc3: make usb2 phy utmi interface configurable

Browse source

Support to configure the UTMI+ PHY with an 8- or 16-bit
interface via DT. The UTMI+ PHY interface is a hardware
capability, and it's platform dependent. Normally, the
PHYIF can be configured during coreconsultant.

But for some specific USB cores(e.g. rk3399 SoC DWC3),
the default PHYIF configuration value is false, so we
need to reconfigure it by software.

Signed-off-by: William Wu <william.wu@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

...

This commit is contained in:

William Wu 2016-08-16 22:44:38 +08:00 • committed by Felipe Balbi

parent 16199f3389

commit 32f2ed864d

3 changed files with 36 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

6

Documentation/devicetree/bindings/usb/generic.txt

View file

18

drivers/usb/dwc3/core.c

View file

12

drivers/usb/dwc3/core.h

View file