linux-kernel - [PATCH 4/4] arm64: dts: imx8mn: Add power-domain reference in USB controller

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Message-Id: <20201022150808.763082-5-aford173@gmail.com>
Date:   Thu, 22 Oct 2020 10:08:07 -0500
From:   Adam Ford <aford173@...il.com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     marex@...x.de, l.stach@...gutronix.de, aford@...conembedded.com,
        Adam Ford <aford173@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Andrey Smirnov <andrew.smirnov@...il.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 4/4] arm64: dts: imx8mn: Add power-domain reference in USB controller

The USB OTG controller cannot be used until the power-domain is enabled
unless it was started in the bootloader.

Adding the power-domain reference to the OTG node allows the OTG
controller to operate.

Signed-off-by: Adam Ford <aford173@...il.com>

diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index 27733fbe87e9..605e6dbd2c6f 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
@@ -979,6 +979,7 @@ usbotg1: usb@...40000 {
 				assigned-clock-parents = <&clk IMX8MN_SYS_PLL2_500M>;
 				fsl,usbphy = <&usbphynop1>;
 				fsl,usbmisc = <&usbmisc1 0>;
+				power-domains = <&pgc_otg1>;
 				status = "disabled";
 			};
 
-- 
2.25.1