linux-kernel - [PATCH] usb: dwc3: core: clarify usb-phy array binding

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Message-Id: <1376062832-23288-1-git-send-email-galak@codeaurora.org>
Date:	Fri,  9 Aug 2013 10:40:32 -0500
From:	Kumar Gala <galak@...eaurora.org>
To:	balbi@...com, Rob Herring <rob.herring@...xeda.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	Ian Campbell <ian.campbell@...rix.com>,
	Kumar Gala <galak@...eaurora.org>
Cc:	devicetree@...r.kernel.org, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] usb: dwc3: core: clarify usb-phy array binding

The binding spec wasn't clear that the order of the phandles in the
usb-phy array has meaning.  Clarify this point in the binding that
it should be <USB2-HS-PHY, USB3-SS-PHY>.

Signed-off-by: Kumar Gala <galak@...eaurora.org>
---
 Documentation/devicetree/bindings/usb/dwc3.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt
index 7a95c65..8a9770b 100644
--- a/Documentation/devicetree/bindings/usb/dwc3.txt
+++ b/Documentation/devicetree/bindings/usb/dwc3.txt
@@ -6,7 +6,9 @@ Required properties:
  - compatible: must be "synopsys,dwc3"
  - reg : Address and length of the register set for the device
  - interrupts: Interrupts used by the dwc3 controller.
- - usb-phy : array of phandle for the PHY device
+ - usb-phy : array of phandle for the PHY device.  The first element
+   in the array is expected to be a handle to the USB2/HS PHY and
+   the second element is expected to be a handle to the USB3/SS PHY
 
 Optional properties:
  - tx-fifo-resize: determines if the FIFO *has* to be reallocated.
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation

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