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Doc: usb: ci-hdrc-usb2: Add phy-clkgate-delay-us entry

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Add an entry for the optional 'phy-clkgate-delay-us' property that is
used to describe the delay time between putting PHY into low power
mode and turning off the PHY clock.

Signed-off-by: Li Jun <jun.li@freescale.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
This commit is contained in:
Fabio Estevam 2015-09-08 22:18:15 -03:00 committed by Peter Chen
parent 1fbf46280e
commit 17aa4450f8
1 changed files with 3 additions and 0 deletions
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Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
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@ -51,6 +51,8 @@ Optional properties:
to external connector device, which provide "USB-HOST" cable events. If one to external connector device, which provide "USB-HOST" cable events. If one
of the external connector devices is not required, empty <0> phandle should of the external connector devices is not required, empty <0> phandle should
be specified. be specified.
- phy-clkgate-delay-us: the delay time (us) between putting the PHY into
low power mode and gating the PHY clock.
Example: Example:
@ -68,4 +70,5 @@ Example:
tx-burst-size-dword = <0x10>; /* 64 bytes */ tx-burst-size-dword = <0x10>; /* 64 bytes */
rx-burst-size-dword = <0x10>; rx-burst-size-dword = <0x10>;
extcon = <0>, <&usb_id>; extcon = <0>, <&usb_id>;
phy-clkgate-delay-us = <400>;
}; };