linux-kernel - [PATCH] arm64: dts: imx8mn: Init rates and parents configs for clocks

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Date:   Fri, 10 Jan 2020 07:20:31 +0000
From:   Peng Fan <peng.fan@....com>
To:     "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        Abel Vesa <abel.vesa@....com>
CC:     dl-linux-imx <linux-imx@....com>,
        Anson Huang <anson.huang@....com>,
        Leonard Crestez <leonard.crestez@....com>,
        Daniel Baluta <daniel.baluta@....com>,
        Jacky Bai <ping.bai@....com>, Jun Li <jun.li@....com>,
        "angus@...ea.ca" <angus@...ea.ca>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Peng Fan <peng.fan@....com>
Subject: [PATCH] arm64: dts: imx8mn: Init rates and parents configs for clocks

From: Peng Fan <peng.fan@....com>

Add the initial configuration for clocks that need default parent and rate
setting.

NoC sources from SYS PLL3, running at 600MHz. Audio AHB/IPG clks needs
to run at 400MHz for better performance.

Signed-off-by: Peng Fan <peng.fan@....com>
---
 arch/arm64/boot/dts/freescale/imx8mn.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index a44b5438e842..0a62a478a930 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
@@ -379,6 +379,16 @@
 					 <&clk_ext3>, <&clk_ext4>;
 				clock-names = "osc_32k", "osc_24m", "clk_ext1", "clk_ext2",
 					      "clk_ext3", "clk_ext4";
+				assigned-clocks = <&clk IMX8MN_CLK_NOC>,
+						<&clk IMX8MN_CLK_AUDIO_AHB>,
+						<&clk IMX8MN_CLK_IPG_AUDIO_ROOT>,
+						<&clk IMX8MN_SYS_PLL3>;
+				assigned-clock-parents = <&clk IMX8MN_SYS_PLL3_OUT>,
+							 <&clk IMX8MN_SYS_PLL1_800M>;
+				assigned-clock-rates = <0>,
+							<400000000>,
+							<400000000>,
+							<600000000>;
 			};
 
 			src: reset-controller@...90000 {
-- 
2.16.4