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Date: Wed, 30 Jun 2021 12:30:40 -0500
From: Adam Ford <aford173@...il.com>
To: linux-usb@...r.kernel.org
Cc: aford@...conembedded.com, Adam Ford <aford173@...il.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Rob Herring <robh+dt@...nel.org>,
Geert Uytterhoeven <geert+renesas@...der.be>,
Magnus Damm <magnus.damm@...il.com>,
Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-renesas-soc@...r.kernel.org
Subject: [PATCH 1/3] dt-bindings: usb: renesas,usbhs: Support external ref clock
The usbhs driver expects a fixed external reference clock, but it
could be sourced from a programmable clock instead of a fixed clock.
Add support for an optional 4th reference clock.
Signed-off-by: Adam Ford <aford173@...il.com>
diff --git a/Documentation/devicetree/bindings/usb/renesas,usbhs.yaml b/Documentation/devicetree/bindings/usb/renesas,usbhs.yaml
index e67223d90bb7..2372d8c42979 100644
--- a/Documentation/devicetree/bindings/usb/renesas,usbhs.yaml
+++ b/Documentation/devicetree/bindings/usb/renesas,usbhs.yaml
@@ -53,11 +53,12 @@ properties:
clocks:
minItems: 1
- maxItems: 3
+ maxItems: 4
items:
- description: USB 2.0 host
- description: USB 2.0 peripheral
- description: USB 2.0 clock selector
+ - description: Optional external reference clock
interrupts:
maxItems: 1
--
2.25.1
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