diff options
| author | Peter Chen <peter.chen@freescale.com> | 2015-10-13 17:18:22 +0800 |
|---|---|---|
| committer | Peter Chen <peter.chen@freescale.com> | 2015-10-22 09:26:57 +0800 |
| commit | c532e74c4ba8f06c5a94c9a79d75e3bf8e7266ff (patch) | |
| tree | 7dc6cffdacab59be0a60689888080128f4411135 /Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt | |
| parent | 5cb377c52fe464c5cdc722944bc0c62a8cb10312 (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>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Shanw Guo <shawnguo@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt index 77946f57a3a4..e4e30cc3c05d 100644 --- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt @@ -41,11 +41,15 @@ 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 |