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authorJoachim Eastwood <manabian@gmail.com>2015-05-16 18:17:40 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-05-24 19:29:36 +0300
commit40f2f2a3255314fc826325f49add1a2fbfc811bd (patch)
treefff91466214ec45361cb1bf09bdf0ec0e932dddd /Documentation
parentca07e1c1e4a6aed2b2576256b1fdc53a9f87bb40 (diff)
downloadlinux-40f2f2a3255314fc826325f49add1a2fbfc811bd.tar.xz
USB: ehci-platform: support EHCIs with transaction translator
Some EHCI controllers have a Transaction Translator built into the root hub. Support this feature in device tree when using the ehci-platform driver by adding a feature flag for it. This is needed to get USB working on NXP LPC18xx/43xx platforms. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/usb/usb-ehci.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/usb-ehci.txt b/Documentation/devicetree/bindings/usb/usb-ehci.txt
index 0b04fdff9d5a..a12d6012a40f 100644
--- a/Documentation/devicetree/bindings/usb/usb-ehci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-ehci.txt
@@ -13,6 +13,8 @@ Optional properties:
- big-endian-desc : boolean, set this for hcds with big-endian descriptors
- big-endian : boolean, for hcds with big-endian-regs + big-endian-desc
- needs-reset-on-resume : boolean, set this to force EHCI reset after resume
+ - has-transaction-translator : boolean, set this if EHCI have a Transaction
+ Translator built into the root hub.
- clocks : a list of phandle + clock specifier pairs
- phys : phandle + phy specifier pair
- phy-names : "usb"