[PATCH v2 2/2] ARM: dts: imx7ulp: Add CPU clock and OPP table support

[Peng Fan (OSS)]

From: Peng Fan <peng.fan@xxxxxxx>

Add missing CPU clock definitions and operating-points-v2 table for the
Cortex-A7 on i.MX7ULP to enable proper CPU frequency scaling and
integration with the cpufreq/OPP frameworks.

Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
---
 arch/arm/boot/dts/nxp/imx/imx7ulp.dtsi | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/arch/arm/boot/dts/nxp/imx/imx7ulp.dtsi b/arch/arm/boot/dts/nxp/imx/imx7ulp.dtsi
index 880b9a4f32b0846a773dbf9ad30715c84ac2fda6..1355feda1aa72d88dcf56033dfdeaae631c108f8 100644
--- a/arch/arm/boot/dts/nxp/imx/imx7ulp.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx7ulp.dtsi
@@ -41,6 +41,34 @@ cpu0: cpu@f00 {
 			compatible = "arm,cortex-a7";
 			device_type = "cpu";
 			reg = <0xf00>;
+			clocks = <&smc1 IMX7ULP_CLK_ARM>,
+				 <&scg1 IMX7ULP_CLK_CORE>,
+				 <&scg1 IMX7ULP_CLK_SYS_SEL>,
+				 <&scg1 IMX7ULP_CLK_HSRUN_CORE>,
+				 <&scg1 IMX7ULP_CLK_HSRUN_SYS_SEL>,
+				 <&scg1 IMX7ULP_CLK_FIRC>;
+			clock-names = "arm", "core", "scs_sel",
+				      "hsrun_core", "hsrun_scs_sel",
+				      "firc";
+			operating-points-v2 = <&cpu0_opp_table>;
+		};
+	};
+
+	cpu0_opp_table: opp-table {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp-500210000 {
+			opp-hz = /bits/ 64 <500210000>;
+			opp-microvolt = <1025000>;
+			clock-latency-ns = <150000>;
+			opp-suspend;
+		};
+
+		opp-720000000 {
+			opp-hz = /bits/ 64 <720000000>;
+			opp-microvolt = <1125000>;
+			clock-latency-ns = <150000>;
 		};
 	};
 

-- 
2.37.1