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From: Adam Ford <aford173@gmail.com>
To: linux-usb@vger.kernel.org
Cc: aford@beaconembedded.com, Adam Ford <aford173@gmail.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Rob Herring <robh+dt@kernel.org>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Magnus Damm <magnus.damm@gmail.com>,
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-renesas-soc@vger.kernel.org
Subject: [PATCH 1/3] dt-bindings: usb: renesas,usbhs: Support external ref clock
Date: Wed, 30 Jun 2021 12:30:40 -0500	[thread overview]
Message-ID: <20210630173042.186394-1-aford173@gmail.com> (raw)

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@gmail.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


             reply	other threads:[~2021-06-30 17:30 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-30 17:30 Adam Ford [this message]
2021-06-30 17:30 ` [PATCH 2/3] usb: renesas_usbhs: Enable support for more than two clks Adam Ford
2021-07-01  9:07   ` Geert Uytterhoeven
2021-07-01 11:34     ` Yoshihiro Shimoda
2021-08-27 18:57       ` Adam Ford
2021-08-30  5:32         ` Yoshihiro Shimoda
2021-06-30 17:30 ` [PATCH 3/3] arm64: dts: renesas: beacon: Fix HSUSB ref clock references Adam Ford
2021-07-14 21:27 ` [PATCH 1/3] dt-bindings: usb: renesas,usbhs: Support external ref clock Rob Herring

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