[PATCH] ARM: dts: imx6qdl-dhcom: Align PHY reset timing with other DHCOM SoMs

[Christoph Niedermaier]

According to datasheet Microchip LAN8710A/LAN8710Ai DS00002164B [1]
the reset should stay asserted for at least 100uS and software
should wait at least 200nS. On other DHCOM SoMs with the SMSC
LAN8710Ai PHY both reset delays are 500us. This should be plenty
and for consistency, the i.MX6 SoM should also use these delays.

[1] https://ww1.microchip.com/downloads/en/DeviceDoc/00002164B.pdf

Signed-off-by: Christoph Niedermaier <cniedermaier at dh-electronics.com>
Cc: Shawn Guo <shawnguo at kernel.org>
Cc: Fabio Estevam <festevam at denx.de>
Cc: Marek Vasut <marex at denx.de>
Cc: NXP Linux Team <linux-imx at nxp.com>
Cc: kernel at dh-electronics.com
To: linux-arm-kernel at lists.infradead.org
---
 arch/arm/boot/dts/imx6qdl-dhcom-som.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/imx6qdl-dhcom-som.dtsi b/arch/arm/boot/dts/imx6qdl-dhcom-som.dtsi
index 5d10c40313cb..e71687061161 100644
--- a/arch/arm/boot/dts/imx6qdl-dhcom-som.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-dhcom-som.dtsi
@@ -138,8 +138,8 @@
 			pinctrl-0 = <&pinctrl_ethphy0>;
 			pinctrl-names = "default";
 			reg = <0>;
-			reset-assert-us = <1000>;
-			reset-deassert-us = <1000>;
+			reset-assert-us = <500>;
+			reset-deassert-us = <500>;
 			reset-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
 			smsc,disable-energy-detect; /* Make plugin detection reliable */
 		};
-- 
2.11.0