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Message-Id: <20190123143103.16891-1-philipp.puschmann@emlix.com>
Date: Wed, 23 Jan 2019 15:31:02 +0100
From: Philipp Puschmann <philipp.puschmann@...ix.com>
To: gregkh@...uxfoundation.org
Cc: robh+dt@...nel.org, mark.rutland@....com, Peter.Chen@....com,
linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
Philipp Puschmann <philipp.puschmann@...ix.com>,
Rob Herring <robh@...nel.org>
Subject: [PATCH v4 1/2] dt-bindings: usb: ci-hdrc-usb2: add property power-active-high
The i.MX USB controller may drive the usb power line directly, but the
polarity depends on the board. Reset state of the polarity is low-active so
add this property to allow it to be high-active.
Signed-off-by: Philipp Puschmann <philipp.puschmann@...ix.com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
Changes in v4: do not limit to i.MX6
Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
index adae82385dd6..a254386a91ad 100644
--- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
+++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
@@ -93,6 +93,7 @@ i.mx specific properties
- over-current-active-low: over current signal polarity is active low.
- over-current-active-high: over current signal polarity is active high.
It's recommended to specify the over current polarity.
+- power-active-high: power signal polarity is active high
- external-vbus-divider: enables off-chip resistor divider for Vbus
Example:
--
2.20.1
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