rockchip: fix memory controller voltage excursion for a sensitive board

Author: paolosabatino

patch/kernel/archive/rockchip-6.18/dt/rk322x-box.dts

@@ -210,6 +210,7 @@
 		regulator-name = "vdd_log";
 		regulator-min-microvolt = <1000000>;
 		regulator-max-microvolt = <1300000>;
+		regulator-settling-time-us = <50>;
 		regulator-always-on;
 		regulator-boot-on;
 	};

patch/kernel/archive/rockchip-6.18/overlay/rk322x-led-conf5.dtso

@@ -93,5 +93,32 @@
 		};
 	};
 
+	fragment@6 {
+		target = <&dmc_opp_table>;
+		__overlay__ {
+			compatible = "operating-points-v2";
+
+			opp-330000000 {
+				opp-hz = /bits/ 64 <330000000>;
+				opp-microvolt = <1100000>;
+			};
+
+			opp-534000000 {
+				opp-hz = /bits/ 64 <534000000>;
+				opp-microvolt = <1100000>;
+			};
+
+			opp-660000000 {
+				opp-hz = /bits/ 64 <660000000>;
+				opp-microvolt = <1100000>;
+			};
+
+			opp-786000000 {
+				opp-hz = /bits/ 64 <786000000>;
+				opp-microvolt = <1150000>;
+			};
+		};
+	};
+
 
 };

patch/kernel/archive/rockchip-6.19/dt/rk322x-box.dts

@@ -210,6 +210,7 @@
 		regulator-name = "vdd_log";
 		regulator-min-microvolt = <1000000>;
 		regulator-max-microvolt = <1300000>;
+		regulator-settling-time-us = <50>;
 		regulator-always-on;
 		regulator-boot-on;
 	};

patch/kernel/archive/rockchip-6.19/overlay/rk322x-led-conf5.dtso

@@ -93,5 +93,32 @@
 		};
 	};
 
+	fragment@6 {
+		target = <&dmc_opp_table>;
+		__overlay__ {
+			compatible = "operating-points-v2";
+
+			opp-330000000 {
+				opp-hz = /bits/ 64 <330000000>;
+				opp-microvolt = <1100000>;
+			};
+
+			opp-534000000 {
+				opp-hz = /bits/ 64 <534000000>;
+				opp-microvolt = <1100000>;
+			};
+
+			opp-660000000 {
+				opp-hz = /bits/ 64 <660000000>;
+				opp-microvolt = <1100000>;
+			};
+
+			opp-786000000 {
+				opp-hz = /bits/ 64 <786000000>;
+				opp-microvolt = <1150000>;
+			};
+		};
+	};
+
 
 };