linux-kernel - [PATCH V2 6/7] ARM64: dts: imx8mm: Fix clocks and power domain for USB OTG

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Date:   Fri, 13 Dec 2019 10:05:41 -0600
From:   Adam Ford <aford173@...il.com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     peng.fan@....com, ping.bai@....com, Adam Ford <aford173@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        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>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH V2 6/7] ARM64: dts: imx8mm: Fix clocks and power domain for USB OTG

There are two USB OTG controllers on the i.MX8M Mini, but currently
neither are functional.

According to the device tree entries published on the NXP kernel
for the imx8m mini, these both need to be assigned to the proper
clocks and power domain in order to function.

This patch configures both USB OTG controllers to enable a missing
clock and define the power domain so boards wishing to enable
the USB OTG can do so.

Signed-off-by: Adam Ford <aford173@...il.com>
---
V2:  No Change
 arch/arm64/boot/dts/freescale/imx8mm.dtsi | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index f38bed94bce2..dbeee4059c55 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -865,8 +865,11 @@
 				interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&clk IMX8MM_CLK_USB1_CTRL_ROOT>;
 				clock-names = "usb1_ctrl_root_clk";
-				assigned-clocks = <&clk IMX8MM_CLK_USB_BUS>;
-				assigned-clock-parents = <&clk IMX8MM_SYS_PLL2_500M>;
+				assigned-clocks = <&clk IMX8MM_CLK_USB_BUS>,
+						  <&clk IMX8MM_CLK_USB_CORE_REF>;
+				assigned-clock-parents = <&clk IMX8MM_SYS_PLL2_500M>,
+							 <&clk IMX8MM_SYS_PLL1_100M>;
+				power-domains = <&pgc_otg1>;
 				fsl,usbphy = <&usbphynop1>;
 				fsl,usbmisc = <&usbmisc1 0>;
 				status = "disabled";
@@ -884,8 +887,11 @@
 				interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&clk IMX8MM_CLK_USB1_CTRL_ROOT>;
 				clock-names = "usb1_ctrl_root_clk";
-				assigned-clocks = <&clk IMX8MM_CLK_USB_BUS>;
-				assigned-clock-parents = <&clk IMX8MM_SYS_PLL2_500M>;
+				assigned-clocks = <&clk IMX8MM_CLK_USB_BUS>,
+						  <&clk IMX8MM_CLK_USB_CORE_REF>;
+				assigned-clock-parents = <&clk IMX8MM_SYS_PLL2_500M>,
+							 <&clk IMX8MM_SYS_PLL1_100M>;
+				power-domains = <&pgc_otg2>;
 				fsl,usbphy = <&usbphynop2>;
 				fsl,usbmisc = <&usbmisc2 0>;
 				status = "disabled";
-- 
2.20.1