diff options
| author | Peter Chen <peter.chen@freescale.com> | 2015-10-13 17:18:22 +0800 |
|---|---|---|
| committer | Nitin Garg <nitin.garg@nxp.com> | 2016-01-14 11:02:15 -0600 |
| commit | 153df95c1e55908394a31d5035e5eb84b349c43c (patch) | |
| tree | 2607b7d02762b8cae3839371b45e4bb113144bb8 /Documentation/devicetree | |
| parent | d42c89bf3b82fa16962a96958aa14ba94aa2f269 (diff) | |
doc: dt-binding: ci-hdrc-usb2: improve property description
Improve the description of properties "tx-burst-size-dword"
and "rx-burst-size-dword".
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Peter Chen <peter.chen@kernel.org>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Shanw Guo <shawnguo@kernel.org>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt index f6da7aebc0f0..3910af6af339 100644 --- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt @@ -26,11 +26,22 @@ Optional properties: - tx-burst-size-dword: it is vendor dependent, the tx burst size in dword (4 bytes), This register represents the maximum length of a the burst in 32-bit words while moving data from system memory to the USB - bus, changing this value takes effect only the SBUSCFG.AHBBRST is 0. + bus, the value of this property will only take effect if property + "ahb-burst-config" is set to 0, if this property is missing the reset + default of the hardware implementation will be used. - rx-burst-size-dword: it is vendor dependent, the rx burst size in dword (4 bytes), This register represents the maximum length of a the burst in 32-bit words while moving data from the USB bus to system memory, - changing this value takes effect only the SBUSCFG.AHBBRST is 0. + the value of this property will only take effect if property + "ahb-burst-config" is set to 0, if this property is missing the reset + default of the hardware implementation will be used. +- extcon: phandles to external connector devices. First phandle should point to + external connector, which provide "USB" cable events, the second should point + to external connector device, which provide "USB-HOST" cable events. If one + of the external connector devices is not required, empty <0> phandle should + be specified. +- phy-clkgate-delay-us: the delay time (us) between putting the PHY into + low power mode and gating the PHY clock. Example: |