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UPSTREAM: usb: dwc3: Add a property to disable USB2 LPM

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Add an option to disable USB2 LPM from host. There maybe cases where the
user does not want to enable USB2 LPM (e.g. USB2 LPM is broken).

Change-Id: I7b6b075f7017d84e6416f05cdac1fdbca64c248b
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: William Wu <william.wu@rock-chips.com>
(cherry picked from commit 5455e15607)
This commit is contained in:
Thinh Nguyen
2018-11-07 18:10:36 -08:00
committed by Tao Huang
parent b0efb9ece8
commit e49367c0c4
1 changed files with 1 additions and 0 deletions
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Documentation/devicetree/bindings/usb/dwc3.txt
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@@ -36,6 +36,7 @@ Optional properties:
- phy-names: from the *Generic PHY* bindings; supported names are "usb2-phy"
or "usb3-phy".
- resets: a single pair of phandle and reset specifier
- snps,usb2-lpm-disable: indicate if we don't want to enable USB2 HW LPM
- snps,usb3_lpm_capable: determines if platform is USB3 LPM capable
- snps,disable_scramble_quirk: true when SW should disable data scrambling.
Only really useful for FPGA builds.