linux-kernel - [PATCH net-next 1/3] dt-bindings: net: Document Broadcom SF2 switch clocks

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Message-Id: <20200901225913.1587628-2-f.fainelli@gmail.com>
Date:   Tue,  1 Sep 2020 15:59:11 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     netdev@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH net-next 1/3] dt-bindings: net: Document Broadcom SF2 switch clocks

Describe the two possible clocks feeding into the Broadcom SF2
integrated Ethernet switch. BCM7445 systems have two clocks, one for the
main switch core clock, and another for controlling the switch clock
divider whereas BCM7278 systems only have the first kind.

Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 .../devicetree/bindings/net/brcm,bcm7445-switch-v4.0.txt   | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/brcm,bcm7445-switch-v4.0.txt b/Documentation/devicetree/bindings/net/brcm,bcm7445-switch-v4.0.txt
index 88b57b0ca1f4..97ca62b0e14d 100644
--- a/Documentation/devicetree/bindings/net/brcm,bcm7445-switch-v4.0.txt
+++ b/Documentation/devicetree/bindings/net/brcm,bcm7445-switch-v4.0.txt
@@ -50,6 +50,13 @@ Optional properties:
 - reset-names: If the "reset" property is specified, this property should have
   the value "switch" to denote the switch reset line.
 
+- clocks: when provided, the first phandle is to the switch's main clock and
+  is valid for both BCM7445 and BCM7278. The second phandle is only applicable
+  to BCM7445 and is to support dividing the switch core clock.
+
+- clock-names: when provided, the first phandle must be "sw_switch", and the
+  second must be named "sw_switch_mdiv".
+
 Port subnodes:
 
 Optional properties:
-- 
2.25.1