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48 lines
1.6 KiB
Diff
48 lines
1.6 KiB
Diff
From 85409ae3c08b4b1aedc80d35f0afd6832cfe5d1f Mon Sep 17 00:00:00 2001
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From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
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Date: Wed, 16 Jun 2021 20:34:01 +0200
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Subject: [PATCH 07/96] dt-bindings: phy: meson8b-usb2: Add support for reading
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the ID signal
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The first USB PHY on Amlogic Meson8/8b/8m2/GXBB SoCs is OTG capable.
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This means that the USB "ID" signal is routed to the PHY. Add support
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for the gpio-controller and #gpio-cells properties so the value of
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the "ID" signal can be read as a GPIO (from the PHY) for example by
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an "gpio-usb-b-connector".
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Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
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---
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.../bindings/phy/amlogic,meson8b-usb2-phy.yaml | 9 +++++++++
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1 file changed, 9 insertions(+)
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diff --git a/Documentation/devicetree/bindings/phy/amlogic,meson8b-usb2-phy.yaml b/Documentation/devicetree/bindings/phy/amlogic,meson8b-usb2-phy.yaml
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index df68bfe5f..be722a235 100644
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--- a/Documentation/devicetree/bindings/phy/amlogic,meson8b-usb2-phy.yaml
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+++ b/Documentation/devicetree/bindings/phy/amlogic,meson8b-usb2-phy.yaml
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@@ -6,6 +6,10 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Amlogic Meson8, Meson8b, Meson8m2 and GXBB USB2 PHY
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+description: |
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+ OTG capable PHYs have the USB "ID" signal routed to them.
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+ This can be read out via the PHY-provided GPIO controller.
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+
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maintainers:
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- Martin Blumenstingl <martin.blumenstingl@googlemail.com>
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@@ -31,6 +35,11 @@ properties:
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- const: usb_general
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- const: usb
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+ '#gpio-cells':
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+ const: 2
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+
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+ gpio-controller: true
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+
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resets:
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minItems: 1
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--
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2.45.1
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