linux-kernel - [PATCH v3 1/2] dt-bindings: usb: ci-hdrc-usb2: add property power-active-high

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Message-Id: <20190116111133.31326-1-philipp.puschmann@emlix.com>
Date:   Wed, 16 Jan 2019 12:11:32 +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>
Subject: [PATCH v3 1/2] dt-bindings: usb: ci-hdrc-usb2: add property power-active-high

The i.MX6q/dl 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>
---
Changes in v3: add description
---
 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..8696e3eff6e7 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 high active (only for imx6q/dl)
 - external-vbus-divider: enables off-chip resistor divider for Vbus
 
 Example:
-- 
2.20.1