linux-kernel - [PATCH v2 02/11] dt-bindings: phy-mtk-tphy: make the ref clock optional

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Message-ID: <1567149298-29366-2-git-send-email-chunfeng.yun@mediatek.com>
Date:   Fri, 30 Aug 2019 15:14:49 +0800
From:   Chunfeng Yun <chunfeng.yun@...iatek.com>
To:     Kishon Vijay Abraham I <kishon@...com>,
        Rob Herring <robh+dt@...nel.org>
CC:     Mark Rutland <mark.rutland@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>
Subject: [PATCH v2 02/11] dt-bindings: phy-mtk-tphy: make the ref clock optional

Make the ref clock optional, then we no need refer to a fixed-clock
in DTS anymore when the clock of USB3 PHY comes from oscillator
directly

Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
---
v2: no changes
---
 .../devicetree/bindings/phy/phy-mtk-tphy.txt        | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt b/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt
index ce6abfbdfbe1..1f4a36dd80e0 100644
--- a/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt
+++ b/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt
@@ -34,12 +34,6 @@ Optional properties (controller (parent) node):
 
 Required properties (port (child) node):
 - reg		: address and length of the register set for the port.
-- clocks	: a list of phandle + clock-specifier pairs, one for each
-		  entry in clock-names
-- clock-names	: must contain
-		  "ref": 48M reference clock for HighSpeed analog phy; and 26M
-			reference clock for SuperSpeed analog phy, sometimes is
-			24M, 25M or 27M, depended on platform.
 - #phy-cells	: should be 1 (See second example)
 		  cell after port phandle is phy type from:
 			- PHY_TYPE_USB2
@@ -48,6 +42,13 @@ Required properties (port (child) node):
 			- PHY_TYPE_SATA
 
 Optional properties (PHY_TYPE_USB2 port (child) node):
+- clocks	: a list of phandle + clock-specifier pairs, one for each
+		  entry in clock-names
+- clock-names	: may contain
+		  "ref": 48M reference clock for HighSpeed anolog phy; and 26M
+			reference clock for SuperSpeed anolog phy, sometimes is
+			24M, 25M or 27M, depended on platform.
+
 - mediatek,eye-src	: u32, the value of slew rate calibrate
 - mediatek,eye-vrt	: u32, the selection of VRT reference voltage
 - mediatek,eye-term	: u32, the selection of HS_TX TERM reference voltage
-- 
2.23.0