linux-kernel - [PATCH v3] arm64: dts: zii-ultra: update MDIO speed and preamble

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Message-Id: <20200708010005.6366-1-cphealy@gmail.com>
Date:   Tue,  7 Jul 2020 18:00:05 -0700
From:   Chris Healy <cphealy@...il.com>
To:     robh+dt@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
        festevam@...il.com, linux-imx@....com, andrew.smirnov@...il.com,
        l.stach@...gutronix.de, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        andrew@...n.ch
Cc:     Chris Healy <cphealy@...il.com>
Subject: [PATCH v3] arm64: dts: zii-ultra: update MDIO speed and preamble

Update MDIO configuration with zii-ultra device to fully utilize
MDIO endpoint capabilities.  Device supports 12.5MHz clock and
doesn't require MDIO preamble.

Signed-off-by: Chris Healy <cphealy@...il.com>
---
v3:
- make "status = okay" the last property
v2:
- Fix subject line to reference zii-ultra:
- Get rid of "=<1>;" from suppress-preamble lines

 arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
index 6a55165bd76a..0d1088dcaa02 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
@@ -131,6 +131,8 @@
 	mdio {
 		#address-cells = <1>;
 		#size-cells = <0>;
+		clock-frequency = <12500000>;
+		suppress-preamble;
 		status = "okay";
 
 		switch: switch@0 {
-- 
2.21.3