Merge tag 'samsung-dt-devfreq-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/late

Merge "ARM: dts: exynos: Devfreq for v4.7: from Krzysztof Kozłowski:

Topic branch for Device Tree changes adding new generic devfreq driver, for
v4.7:
1. Add bus nodes for Exynos3250, Exynos4x12, Exynos4210 and Exynos542x.
2. Split out common PPMU (Performance Monitoring Unit) nodes into separate
   DTSI. The PPMU provides performance data for devfreq.
3. Add NoCP (Network on Chip Probe) node for Exynos542x. On this SoC, like PPMU
   on older designs, provides performance data for devfreq.
4. Enable DFVS (Dynamic Voltage and Frequency Scaling) on boards:
   - Exynos3250 Rinato,
   - Exynos4412 Odroid-X/X2/U3 and Trats2,
   - Exynos5422 Odroid XU3/XU3-Lite/XU4.

* tag 'samsung-dt-devfreq-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: dts: exynos: Add support of Bus frequency using VDD_INT for exynos5422-odroidxu3
  ARM: dts: exynos: Add bus nodes using VDD_INT for Exynos542x SoC
  ARM: dts: exynos: Add NoC Probe dt node for Exynos542x SoC
  ARM: dts: exynos: Add support of bus frequency for exynos4412-trats/odroidu3
  ARM: dts: exynos: Expand the voltage range of buck1/3 regulator for exynos4412-odroidu3
  ARM: dts: exynos: Add support of bus frequency using VDD_INT for exynos3250-rinato
  ARM: dts: exynos: Add exynos4412-ppmu-common dtsi to delete duplicate PPMU nodes
  ARM: dts: exynos: Add bus nodes using VDD_MIF for Exynos4210
  ARM: dts: exynos: Add bus nodes using VDD_INT for Exynos4x12
  ARM: dts: exynos: Add bus nodes using VDD_MIF for Exynos4x12
  ARM: dts: exynos: Add bus nodes using VDD_INT for Exynos3250
  ARM: dts: exynos: Add DMC bus frequency for exynos3250-rinato/monk
  ARM: dts: exynos: Add DMC bus node for Exynos3250
  clk: samsung: exynos542x: Add the clock id for ACLK
  dt-bindings: clock: Add the clock id for ACLK clock of Exynos542x SoC

10 files changed, 1225 insertions, 124 deletions

diff --git a/arch/arm/boot/dts/exynos3250-monk.dts b/arch/arm/boot/dts/exynos3250-monk.dts
index 9e2840b59ae8..fbe09d640c9a 100644
--- a/arch/arm/boot/dts/exynos3250-monk.dts
+++ b/arch/arm/boot/dts/exynos3250-monk.dts
@@ -14,6 +14,7 @@
 
 /dts-v1/;
 #include "exynos3250.dtsi"
+#include "exynos4412-ppmu-common.dtsi"
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/clock/samsung,s2mps11.h>
@@ -156,6 +157,12 @@
 	};
 };
 
+&bus_dmc {
+	devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
+	vdd-supply = <&buck1_reg>;
+	status = "okay";
+};
+
 &cpu0 {
 	cpu0-supply = <&buck2_reg>;
 };
@@ -458,46 +465,6 @@
 	status = "okay";
 };
 
-&ppmu_dmc0 {
-	status = "okay";
-
-	events {
-		ppmu_dmc0_3: ppmu-event3-dmc0 {
-			event-name = "ppmu-event3-dmc0";
-		};
-	};
-};
-
-&ppmu_dmc1 {
-	status = "okay";
-
-	events {
-		ppmu_dmc1_3: ppmu-event3-dmc1 {
-			event-name = "ppmu-event3-dmc1";
-		};
-	};
-};
-
-&ppmu_leftbus {
-	status = "okay";
-
-	events {
-		ppmu_leftbus_3: ppmu-event3-leftbus {
-			event-name = "ppmu-event3-leftbus";
-		};
-	};
-};
-
-&ppmu_rightbus {
-	status = "okay";
-
-	events {
-		ppmu_rightbus_3: ppmu-event3-rightbus {
-			event-name = "ppmu-event3-rightbus";
-		};
-	};
-};
-
 &xusbxti {
 	clock-frequency = <24000000>;
 };
diff --git a/arch/arm/boot/dts/exynos3250-rinato.dts b/arch/arm/boot/dts/exynos3250-rinato.dts
index 1f102f3a1ab1..09444897b416 100644
--- a/arch/arm/boot/dts/exynos3250-rinato.dts
+++ b/arch/arm/boot/dts/exynos3250-rinato.dts
@@ -14,6 +14,7 @@
 
 /dts-v1/;
 #include "exynos3250.dtsi"
+#include "exynos4412-ppmu-common.dtsi"
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/clock/samsung,s2mps11.h>
@@ -147,6 +148,53 @@
 	};
 };
 
+&bus_dmc {
+	devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
+	vdd-supply = <&buck1_reg>;
+	status = "okay";
+};
+
+&bus_leftbus {
+	devfreq-events = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>;
+	vdd-supply = <&buck3_reg>;
+	status = "okay";
+};
+
+&bus_rightbus {
+	devfreq = <&bus_leftbus>;
+	status = "okay";
+};
+
+&bus_lcd0 {
+	devfreq = <&bus_leftbus>;
+	status = "okay";
+};
+
+&bus_fsys {
+	devfreq = <&bus_leftbus>;
+	status = "okay";
+};
+
+&bus_mcuisp {
+	devfreq = <&bus_leftbus>;
+	status = "okay";
+};
+
+&bus_isp {
+	devfreq = <&bus_leftbus>;
+	status = "okay";
+};
+
+&bus_peril {
+	devfreq = <&bus_leftbus>;
+	status = "okay";
+};
+
+&bus_mfc {
+	devfreq = <&bus_leftbus>;
+	status = "okay";
+};
+
 &cpu0 {
 	cpu0-supply = <&buck2_reg>;
 };
@@ -635,46 +683,6 @@
 	status = "okay";
 };
 
-&ppmu_dmc0 {
-	status = "okay";
-
-	events {
-		ppmu_dmc0_3: ppmu-event3-dmc0 {
-			event-name = "ppmu-event3-dmc0";
-		};
-	};
-};
-
-&ppmu_dmc1 {
-	status = "okay";
-
-	events {
-		ppmu_dmc1_3: ppmu-event3-dmc1 {
-			event-name = "ppmu-event3-dmc1";
-		};
-	};
-};
-
-&ppmu_leftbus {
-	status = "okay";
-
-	events {
-		ppmu_leftbus_3: ppmu-event3-leftbus {
-			event-name = "ppmu-event3-leftbus";
-		};
-	};
-};
-
-&ppmu_rightbus {
-	status = "okay";
-
-	events {
-		ppmu_rightbus_3: ppmu-event3-rightbus {
-			event-name = "ppmu-event3-rightbus";
-		};
-	};
-};
-
 &xusbxti {
 	clock-frequency = <24000000>;
 };
diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
index 137f9015d4e8..b5157492a422 100644
--- a/arch/arm/boot/dts/exynos3250.dtsi
+++ b/arch/arm/boot/dts/exynos3250.dtsi
@@ -688,6 +688,187 @@
 			clock-names = "ppmu";
 			status = "disabled";
 		};
+
+		bus_dmc: bus_dmc {
+			compatible = "samsung,exynos-bus";
+			clocks = <&cmu_dmc CLK_DIV_DMC>;
+			clock-names = "bus";
+			operating-points-v2 = <&bus_dmc_opp_table>;
+			status = "disabled";
+		};
+
+		bus_dmc_opp_table: opp_table1 {
+			compatible = "operating-points-v2";
+			opp-shared;
+
+			opp@50000000 {
+				opp-hz = /bits/ 64 <50000000>;
+				opp-microvolt = <800000>;
+			};
+			opp@100000000 {
+				opp-hz = /bits/ 64 <100000000>;
+				opp-microvolt = <800000>;
+			};
+			opp@134000000 {
+				opp-hz = /bits/ 64 <134000000>;
+				opp-microvolt = <800000>;
+			};
+			opp@200000000 {
+				opp-hz = /bits/ 64 <200000000>;
+				opp-microvolt = <825000>;
+			};
+			opp@400000000 {
+				opp-hz = /bits/ 64 <400000000>;
+				opp-microvolt = <875000>;
+			};
+		};
+
+		bus_leftbus: bus_leftbus {
+			compatible = "samsung,exynos-bus";
+			clocks = <&cmu CLK_DIV_GDL>;
+			clock-names = "bus";
+			operating-points-v2 = <&bus_leftbus_opp_table>;
+			status = "disabled";
+		};
+
+		bus_rightbus: bus_rightbus {
+			compatible = "samsung,exynos-bus";
+			clocks = <&cmu CLK_DIV_GDR>;
+			clock-names = "bus";
+			operating-points-v2 = <&bus_leftbus_opp_table>;
+			status = "disabled";
+		};
+
+		bus_lcd0: bus_lcd0 {
+			compatible = "samsung,exynos-bus";
+			clocks = <&cmu CLK_DIV_ACLK_160>;
+			clock-names = "bus";
+			operating-points-v2 = <&bus_leftbus_opp_table>;
+			status = "disabled";
+		};
+
+		bus_fsys: bus_fsys {
+			compatible = "samsung,exynos-bus";
+			clocks = <&cmu CLK_DIV_ACLK_200>;
+			clock-names = "bus";
+			operating-points-v2 = <&bus_leftbus_opp_table>;
+			status = "disabled";
+		};
+
+		bus_mcuisp: bus_mcuisp {
+			compatible = "samsung,exynos-bus";
+			clocks = <&cmu CLK_DIV_ACLK_400_MCUISP>;
+			clock-names = "bus";
+			operating-points-v2 = <&bus_mcuisp_opp_table>;
+			status = "disabled";
+		};
+
+		bus_isp: bus_isp {
+			compatible = "samsung,exynos-bus";
+			clocks = <&cmu CLK_DIV_ACLK_266>;
+			clock-names = "bus";
+			operating-points-v2 = <&bus_isp_opp_table>;
+			status = "disabled";
+		};
+
+		bus_peril: bus_peril {
+			compatible = "samsung,exynos-bus";
+			clocks = <&cmu CLK_DIV_ACLK_100>;
+			clock-names = "bus";
+			operating-points-v2 = <&bus_peril_opp_table>;
+			status = "disabled";
+		};
+
+		bus_mfc: bus_mfc {
+			compatible = "samsung,exynos-bus";
+			clocks = <&cmu CLK_SCLK_MFC>;
+			clock-names = "bus";
+			operating-points-v2 = <&bus_leftbus_opp_table>;
+			status = "disabled";
+		};
+
+		bus_leftbus_opp_table: opp_table2 {
+			compatible = "operating-points-v2";
+			opp-shared;
+
+			opp@50000000 {
+				opp-hz = /bits/ 64 <50000000>;
+				opp-microvolt = <900000>;
+			};
+			opp@80000000 {
+				opp-hz = /bits/ 64 <80000000>;
+				opp-microvolt = <900000>;
+			};
+			opp@100000000 {
+				opp-hz = /bits/ 64 <100000000>;
+				opp-microvolt = <1000000>;
+			};
+			opp@134000000 {
+				opp-hz = /bits/ 64 <134000000>;
+				opp-microvolt = <1000000>;
+			};
+			opp@200000000 {
+				opp-hz = /bits/ 64 <200000000>;
+				opp-microvolt = <1000000>;
+			};
+		};
+
+		bus_mcuisp_opp_table: opp_table3 {
+			compatible = "operating-points-v2";
+			opp-shared;
+
+			opp@50000000 {
+				opp-hz = /bits/ 64 <50000000>;
+			};
+			opp@80000000 {
+				opp-hz = /bits/ 64 <80000000>;
+			};
+			opp@100000000 {
+				opp-hz = /bits/ 64 <100000000>;
+			};
+			opp@200000000 {
+				opp-hz = /bits/ 64 <200000000>;
+			};
+			opp@400000000 {
+				opp-hz = /bits/ 64 <400000000>;
+			};
+		};
+
+		bus_isp_opp_table: opp_table4 {
+			compatible = "operating-points-v2";
+			opp-shared;
+
+			opp@50000000 {
+				opp-hz = /bits/ 64 <50000000>;
+			};
+			opp@80000000 {
+				opp-hz = /bits/ 64 <80000000>;
+			};
+			opp@100000000 {
+				opp-hz = /bits/ 64 <100000000>;
+			};
+			opp@200000000 {
+				opp-hz = /bits/ 64 <200000000>;
+			};
+			opp@300000000 {
+				opp-hz = /bits/ 64 <300000000>;
+			};
+		};
+
+		bus_peril_opp_table: opp_table5 {
+			compatible = "operating-points-v2";
+			opp-shared;
+
+			opp@50000000 {
+				opp-hz = /bits/ 64 <50000000>;
+			};
+			opp@80000000 {
+				opp-hz = /bits/ 64 <80000000>;
+			};
+			opp@100000000 {
+				opp-hz = /bits/ 64 <100000000>;
+			};
+		};
 	};
 };
 
diff --git a/arch/arm/boot/dts/exynos4210.dtsi b/arch/arm/boot/dts/exynos4210.dtsi
index c1cb8df6da07..2d9b02967105 100644
--- a/arch/arm/boot/dts/exynos4210.dtsi
+++ b/arch/arm/boot/dts/exynos4210.dtsi
@@ -257,6 +257,165 @@
 		power-domains = <&pd_lcd1>;
 		#iommu-cells = <0>;
 	};
+
+	bus_dmc: bus_dmc {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DIV_DMC>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_dmc_opp_table>;
+		status = "disabled";
+	};
+
+	bus_acp: bus_acp {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DIV_ACP>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_acp_opp_table>;
+		status = "disabled";
+	};
+
+	bus_peri: bus_peri {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_ACLK100>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_peri_opp_table>;
+		status = "disabled";
+	};
+
+	bus_fsys: bus_fsys {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_ACLK133>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_fsys_opp_table>;
+		status = "disabled";
+	};
+
+	bus_display: bus_display {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_ACLK160>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_display_opp_table>;
+		status = "disabled";
+	};
+
+	bus_lcd0: bus_lcd0 {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_ACLK200>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_leftbus_opp_table>;
+		status = "disabled";
+	};
+
+	bus_leftbus: bus_leftbus {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DIV_GDL>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_leftbus_opp_table>;
+		status = "disabled";
+	};
+
+	bus_rightbus: bus_rightbus {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DIV_GDR>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_leftbus_opp_table>;
+		status = "disabled";
+	};
+
+	bus_mfc: bus_mfc {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_SCLK_MFC>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_leftbus_opp_table>;
+		status = "disabled";
+	};
+
+	bus_dmc_opp_table: opp_table1 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp@134000000 {
+			opp-hz = /bits/ 64 <134000000>;
+			opp-microvolt = <1025000>;
+		};
+		opp@267000000 {
+			opp-hz = /bits/ 64 <267000000>;
+			opp-microvolt = <1050000>;
+		};
+		opp@400000000 {
+			opp-hz = /bits/ 64 <400000000>;
+			opp-microvolt = <1150000>;
+		};
+	};
+
+	bus_acp_opp_table: opp_table2 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp@134000000 {
+			opp-hz = /bits/ 64 <134000000>;
+		};
+		opp@160000000 {
+			opp-hz = /bits/ 64 <160000000>;
+		};
+		opp@200000000 {
+			opp-hz = /bits/ 64 <200000000>;
+		};
+	};
+
+	bus_peri_opp_table: opp_table3 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp@5000000 {
+			opp-hz = /bits/ 64 <5000000>;
+		};
+		opp@100000000 {
+			opp-hz = /bits/ 64 <100000000>;
+		};
+	};
+
+	bus_fsys_opp_table: opp_table4 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp@10000000 {
+			opp-hz = /bits/ 64 <10000000>;
+		};
+		opp@134000000 {
+			opp-hz = /bits/ 64 <134000000>;
+		};
+	};
+
+	bus_display_opp_table: opp_table5 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp@100000000 {
+			opp-hz = /bits/ 64 <100000000>;
+		};
+		opp@134000000 {
+			opp-hz = /bits/ 64 <134000000>;
+		};
+		opp@160000000 {
+			opp-hz = /bits/ 64 <160000000>;
+		};
+	};
+
+	bus_leftbus_opp_table: opp_table6 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp@100000000 {
+			opp-hz = /bits/ 64 <100000000>;
+		};
+		opp@160000000 {
+			opp-hz = /bits/ 64 <160000000>;
+		};
+		opp@200000000 {
+			opp-hz = /bits/ 64 <200000000>;
+		};
+	};
 };
 
 &gic {
diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
index 5e5d3fecb04c..2015f10071f9 100644
--- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
+++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
@@ -11,6 +11,7 @@
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/clock/maxim,max77686.h>
 #include "exynos4412.dtsi"
+#include "exynos4412-ppmu-common.dtsi"
 #include <dt-bindings/gpio/gpio.h>
 
 / {
@@ -108,6 +109,53 @@
 	};
 };
 
+&bus_dmc {
+	devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
+	vdd-supply = <&buck1_reg>;
+	status = "okay";
+};
+
+&bus_acp {
+	devfreq = <&bus_dmc>;
+	status = "okay";
+};
+
+&bus_c2c {
+	devfreq = <&bus_dmc>;
+	status = "okay";
+};
+
+&bus_leftbus {
+	devfreq-events = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>;
+	vdd-supply = <&buck3_reg>;
+	status = "okay";
+};
+
+&bus_rightbus {
+	devfreq = <&bus_leftbus>;
+	status = "okay";
+};
+
+&bus_display {
+	devfreq = <&bus_leftbus>;
+	status = "okay";
+};
+
+&bus_fsys {
+	devfreq = <&bus_leftbus>;
+	status = "okay";
+};
+
+&bus_peri {
+	devfreq = <&bus_leftbus>;
+	status = "okay";
+};
+
+&bus_mfc {
+	devfreq = <&bus_leftbus>;
+	status = "okay";
+};
+
 &cpu0 {
 	cpu0-supply = <&buck2_reg>;
 };
@@ -355,8 +403,8 @@
 
 			buck1_reg: BUCK1 {
 				regulator-name = "vdd_mif";
-				regulator-min-microvolt = <1000000>;
-				regulator-max-microvolt = <1000000>;
+				regulator-min-microvolt = <900000>;
+				regulator-max-microvolt = <1100000>;
 				regulator-always-on;
 				regulator-boot-on;
 			};
@@ -371,8 +419,8 @@
 
 			buck3_reg: BUCK3 {
 				regulator-name = "vdd_int";
-				regulator-min-microvolt = <1000000>;
-				regulator-max-microvolt = <1000000>;
+				regulator-min-microvolt = <900000>;
+				regulator-max-microvolt = <1050000>;
 				regulator-always-on;
 				regulator-boot-on;
 			};
diff --git a/arch/arm/boot/dts/exynos4412-ppmu-common.dtsi b/arch/arm/boot/dts/exynos4412-ppmu-common.dtsi
new file mode 100644
index 000000000000..16e4b77d8cb1
--- /dev/null
+++ b/arch/arm/boot/dts/exynos4412-ppmu-common.dtsi
@@ -0,0 +1,50 @@
+/*
+ * Device tree sources for Exynos4412 PPMU common device tree
+ *
+ * Copyright (C) 2015 Samsung Electronics
+ * Author: Chanwoo Choi <cw00.choi@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+&ppmu_dmc0 {
+       status = "okay";
+
+       events {
+	       ppmu_dmc0_3: ppmu-event3-dmc0 {
+		       event-name = "ppmu-event3-dmc0";
+	       };
+       };
+};
+
+&ppmu_dmc1 {
+       status = "okay";
+
+       events {
+	       ppmu_dmc1_3: ppmu-event3-dmc1 {
+		       event-name = "ppmu-event3-dmc1";
+	       };
+       };
+};
+
+&ppmu_leftbus {
+       status = "okay";
+
+       events {
+	       ppmu_leftbus_3: ppmu-event3-leftbus {
+		       event-name = "ppmu-event3-leftbus";
+	       };
+       };
+};
+
+&ppmu_rightbus {
+       status = "okay";
+
+       events {
+	       ppmu_rightbus_3: ppmu-event3-rightbus {
+		       event-name = "ppmu-event3-rightbus";
+	       };
+       };
+};
diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index ed017cc7b14f..9f3fb9a7f5f4 100644
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -14,6 +14,7 @@
 
 /dts-v1/;
 #include "exynos4412.dtsi"
+#include "exynos4412-ppmu-common.dtsi"
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/clock/maxim,max77686.h>
@@ -288,6 +289,53 @@
 	status = "okay";
 };
 
+&bus_dmc {
+	devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
+	vdd-supply = <&buck1_reg>;
+	status = "okay";
+};
+
+&bus_acp {
+	devfreq = <&bus_dmc>;
+	status = "okay";
+};
+
+&bus_c2c {
+	devfreq = <&bus_dmc>;
+	status = "okay";
+};
+
+&bus_leftbus {
+	devfreq-events = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>;
+	vdd-supply = <&buck3_reg>;
+	status = "okay";
+};
+
+&bus_rightbus {
+	devfreq = <&bus_leftbus>;
+	status = "okay";
+};
+
+&bus_display {
+	devfreq = <&bus_leftbus>;
+	status = "okay";
+};
+
+&bus_fsys {
+	devfreq = <&bus_leftbus>;
+	status = "okay";
+};
+
+&bus_peri {
+	devfreq = <&bus_leftbus>;
+	status = "okay";
+};
+
+&bus_mfc {
+	devfreq = <&bus_leftbus>;
+	status = "okay";
+};
+
 &cpu0 {
 	cpu0-supply = <&buck2_reg>;
 };
@@ -871,46 +919,6 @@
 	assigned-clock-parents =  <&clock CLK_XUSBXTI>;
 };
 
-&ppmu_dmc0 {
-	status = "okay";
-
-	events {
-		ppmu_dmc0_3: ppmu-event3-dmc0 {
-			event-name = "ppmu-event3-dmc0";
-		};
-	};
-};
-
-&ppmu_dmc1 {
-	status = "okay";
-
-	events {
-		ppmu_dmc1_3: ppmu-event3-dmc1 {
-			event-name = "ppmu-event3-dmc1";
-		};
-	};
-};
-
-&ppmu_leftbus {
-	status = "okay";
-
-	events {
-		ppmu_leftbus_3: ppmu-event3-leftbus {
-			event-name = "ppmu-event3-leftbus";
-		};
-	};
-};
-
-&ppmu_rightbus {
-	status = "okay";
-
-	events {
-		ppmu_rightbus_3: ppmu-event3-rightbus {
-			event-name = "ppmu-event3-rightbus";
-		};
-	};
-};
-
 &pinctrl_0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&sleep0>;
diff --git a/arch/arm/boot/dts/exynos4x12.dtsi b/arch/arm/boot/dts/exynos4x12.dtsi
index 84a23f962946..e5173107ed44 100644
--- a/arch/arm/boot/dts/exynos4x12.dtsi
+++ b/arch/arm/boot/dts/exynos4x12.dtsi
@@ -281,6 +281,180 @@
 		clocks = <&clock CLK_SMMU_LITE1>, <&clock CLK_FIMC_LITE1>;
 		#iommu-cells = <0>;
 	};
+
+	bus_dmc: bus_dmc {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DIV_DMC>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_dmc_opp_table>;
+		status = "disabled";
+	};
+
+	bus_acp: bus_acp {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DIV_ACP>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_acp_opp_table>;
+		status = "disabled";
+	};
+
+	bus_c2c: bus_c2c {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DIV_C2C>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_dmc_opp_table>;
+		status = "disabled";
+	};
+
+	bus_dmc_opp_table: opp_table1 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp@100000000 {
+			opp-hz = /bits/ 64 <100000000>;
+			opp-microvolt = <900000>;
+		};
+		opp@134000000 {
+			opp-hz = /bits/ 64 <134000000>;
+			opp-microvolt = <900000>;
+		};
+		opp@160000000 {
+			opp-hz = /bits/ 64 <160000000>;
+			opp-microvolt = <900000>;
+		};
+		opp@267000000 {
+			opp-hz = /bits/ 64 <267000000>;
+			opp-microvolt = <950000>;
+		};
+		opp@400000000 {
+			opp-hz = /bits/ 64 <400000000>;
+			opp-microvolt = <1050000>;
+		};
+	};
+
+	bus_acp_opp_table: opp_table2 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp@100000000 {
+			opp-hz = /bits/ 64 <100000000>;
+		};
+		opp@134000000 {
+			opp-hz = /bits/ 64 <134000000>;
+		};
+		opp@160000000 {
+			opp-hz = /bits/ 64 <160000000>;
+		};
+		opp@267000000 {
+			opp-hz = /bits/ 64 <267000000>;
+		};
+	};
+
+	bus_leftbus: bus_leftbus {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DIV_GDL>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_leftbus_opp_table>;
+		status = "disabled";
+	};
+
+	bus_rightbus: bus_rightbus {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DIV_GDR>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_leftbus_opp_table>;
+		status = "disabled";
+	};
+
+	bus_display: bus_display {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_ACLK160>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_display_opp_table>;
+		status = "disabled";
+	};
+
+	bus_fsys: bus_fsys {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_ACLK133>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_fsys_opp_table>;
+		status = "disabled";
+	};
+
+	bus_peri: bus_peri {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_ACLK100>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_peri_opp_table>;
+		status = "disabled";
+	};
+
+	bus_mfc: bus_mfc {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_SCLK_MFC>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_leftbus_opp_table>;
+		status = "disabled";
+	};
+
+	bus_leftbus_opp_table: opp_table3 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp@100000000 {
+			opp-hz = /bits/ 64 <100000000>;
+			opp-microvolt = <900000>;
+		};
+		opp@134000000 {
+			opp-hz = /bits/ 64 <134000000>;
+			opp-microvolt = <925000>;
+		};
+		opp@160000000 {
+			opp-hz = /bits/ 64 <160000000>;
+			opp-microvolt = <950000>;
+		};
+		opp@200000000 {
+			opp-hz = /bits/ 64 <200000000>;
+			opp-microvolt = <1000000>;
+		};
+	};
+
+	bus_display_opp_table: opp_table4 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp@160000000 {
+			opp-hz = /bits/ 64 <160000000>;
+		};
+		opp@200000000 {
+			opp-hz = /bits/ 64 <200000000>;
+		};
+	};
+
+	bus_fsys_opp_table: opp_table5 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp@100000000 {
+			opp-hz = /bits/ 64 <100000000>;
+		};
+		opp@134000000 {
+			opp-hz = /bits/ 64 <134000000>;
+		};
+	};
+
+	bus_peri_opp_table: opp_table6 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp@50000000 {
+			opp-hz = /bits/ 64 <50000000>;
+		};
+		opp@100000000 {
+			opp-hz = /bits/ 64 <100000000>;
+		};
+	};
 };
 
 &combiner {
diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index 7b99cb58d82d..18888b5d2f8c 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -294,6 +294,42 @@
 		};
 	};
 
+	nocp_mem0_0: nocp@10CA1000 {
+		compatible = "samsung,exynos5420-nocp";
+		reg = <0x10CA1000 0x200>;
+		status = "disabled";
+	};
+
+	nocp_mem0_1: nocp@10CA1400 {
+		compatible = "samsung,exynos5420-nocp";
+		reg = <0x10CA1400 0x200>;
+		status = "disabled";
+	};
+
+	nocp_mem1_0: nocp@10CA1800 {
+		compatible = "samsung,exynos5420-nocp";
+		reg = <0x10CA1800 0x200>;
+		status = "disabled";
+	};
+
+	nocp_mem1_1: nocp@10CA1C00 {
+		compatible = "samsung,exynos5420-nocp";
+		reg = <0x10CA1C00 0x200>;
+		status = "disabled";
+	};
+
+	nocp_g3d_0: nocp@11A51000 {
+		compatible = "samsung,exynos5420-nocp";
+		reg = <0x11A51000 0x200>;
+		status = "disabled";
+	};
+
+	nocp_g3d_1: nocp@11A51400 {
+		compatible = "samsung,exynos5420-nocp";
+		reg = <0x11A51400 0x200>;
+		status = "disabled";
+	};
+
 	gsc_pd: power-domain@10044000 {
 		compatible = "samsung,exynos4210-pd";
 		reg = <0x10044000 0x20>;
@@ -1188,6 +1224,377 @@
 		power-domains = <&disp_pd>;
 		#iommu-cells = <0>;
 	};
+
+	bus_wcore: bus_wcore {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DOUT_ACLK400_WCORE>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_wcore_opp_table>;
+		status = "disabled";
+	};
+
+	bus_noc: bus_noc {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DOUT_ACLK100_NOC>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_noc_opp_table>;
+		status = "disabled";
+	};
+
+	bus_fsys_apb: bus_fsys_apb {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DOUT_PCLK200_FSYS>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_fsys_apb_opp_table>;
+		status = "disabled";
+	};
+
+	bus_fsys: bus_fsys {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DOUT_ACLK200_FSYS>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_fsys_apb_opp_table>;
+		status = "disabled";
+	};
+
+	bus_fsys2: bus_fsys2 {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DOUT_ACLK200_FSYS2>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_fsys2_opp_table>;
+		status = "disabled";
+	};
+
+	bus_mfc: bus_mfc {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DOUT_ACLK333>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_mfc_opp_table>;
+		status = "disabled";
+	};
+
+	bus_gen: bus_gen {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DOUT_ACLK266>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_gen_opp_table>;
+		status = "disabled";
+	};
+
+	bus_peri: bus_peri {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DOUT_ACLK66>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_peri_opp_table>;
+		status = "disabled";
+	};
+
+	bus_g2d: bus_g2d {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DOUT_ACLK333_G2D>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_g2d_opp_table>;
+		status = "disabled";
+	};
+
+	bus_g2d_acp: bus_g2d_acp {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DOUT_ACLK266_G2D>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_g2d_acp_opp_table>;
+		status = "disabled";
+	};
+
+	bus_jpeg: bus_jpeg {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DOUT_ACLK300_JPEG>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_jpeg_opp_table>;
+		status = "disabled";
+	};
+
+	bus_jpeg_apb: bus_jpeg_apb {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DOUT_ACLK166>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_jpeg_apb_opp_table>;
+		status = "disabled";
+	};
+
+	bus_disp1_fimd: bus_disp1_fimd {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DOUT_ACLK300_DISP1>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_disp1_fimd_opp_table>;
+		status = "disabled";
+	};
+
+	bus_disp1: bus_disp1 {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DOUT_ACLK400_DISP1>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_disp1_opp_table>;
+		status = "disabled";
+	};
+
+	bus_gscl_scaler: bus_gscl_scaler {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DOUT_ACLK300_GSCL>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_gscl_opp_table>;
+		status = "disabled";
+	};
+
+	bus_mscl: bus_mscl {
+		compatible = "samsung,exynos-bus";
+		clocks = <&clock CLK_DOUT_ACLK400_MSCL>;
+		clock-names = "bus";
+		operating-points-v2 = <&bus_mscl_opp_table>;
+		status = "disabled";
+	};
+
+	bus_wcore_opp_table: opp_table2 {
+		compatible = "operating-points-v2";
+
+		opp00 {
+			opp-hz = /bits/ 64 <84000000>;
+			opp-microvolt = <925000>;
+		};
+		opp01 {
+			opp-hz = /bits/ 64 <111000000>;
+			opp-microvolt = <950000>;
+		};
+		opp02 {
+			opp-hz = /bits/ 64 <222000000>;
+			opp-microvolt = <950000>;
+		};
+		opp03 {
+			opp-hz = /bits/ 64 <333000000>;
+			opp-microvolt = <950000>;
+		};
+		opp04 {
+			opp-hz = /bits/ 64 <400000000>;
+			opp-microvolt = <987500>;
+		};
+	};
+
+	bus_noc_opp_table: opp_table3 {
+		compatible = "operating-points-v2";
+
+		opp00 {
+			opp-hz = /bits/ 64 <67000000>;
+		};
+		opp01 {
+			opp-hz = /bits/ 64 <75000000>;
+		};
+		opp02 {
+			opp-hz = /bits/ 64 <86000000>;
+		};
+		opp03 {
+			opp-hz = /bits/ 64 <100000000>;
+		};
+	};
+
+	bus_fsys_apb_opp_table: opp_table4 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp00 {
+			opp-hz = /bits/ 64 <100000000>;
+		};
+		opp01 {
+			opp-hz = /bits/ 64 <200000000>;
+		};
+	};
+
+	bus_fsys2_opp_table: opp_table5 {
+		compatible = "operating-points-v2";
+
+		opp00 {
+			opp-hz = /bits/ 64 <75000000>;
+		};
+		opp01 {
+			opp-hz = /bits/ 64 <100000000>;
+		};
+		opp02 {
+			opp-hz = /bits/ 64 <150000000>;
+		};
+	};
+
+	bus_mfc_opp_table: opp_table6 {
+		compatible = "operating-points-v2";
+
+		opp00 {
+			opp-hz = /bits/ 64 <96000000>;
+		};
+		opp01 {
+			opp-hz = /bits/ 64 <111000000>;
+		};
+		opp02 {
+			opp-hz = /bits/ 64 <167000000>;
+		};
+		opp03 {
+			opp-hz = /bits/ 64 <222000000>;
+		};
+		opp04 {
+			opp-hz = /bits/ 64 <333000000>;
+		};
+	};
+
+	bus_gen_opp_table: opp_table7 {
+		compatible = "operating-points-v2";
+
+		opp00 {
+			opp-hz = /bits/ 64 <89000000>;
+		};
+		opp01 {
+			opp-hz = /bits/ 64 <133000000>;
+		};
+		opp02 {
+			opp-hz = /bits/ 64 <178000000>;
+		};
+		opp03 {
+			opp-hz = /bits/ 64 <267000000>;
+		};
+	};
+
+	bus_peri_opp_table: opp_table8 {
+		compatible = "operating-points-v2";
+
+		opp00 {
+			opp-hz = /bits/ 64 <67000000>;
+		};
+	};
+
+	bus_g2d_opp_table: opp_table9 {
+		compatible = "operating-points-v2";
+
+		opp00 {
+			opp-hz = /bits/ 64 <84000000>;
+		};
+		opp01 {
+			opp-hz = /bits/ 64 <167000000>;
+		};
+		opp02 {
+			opp-hz = /bits/ 64 <222000000>;
+		};
+		opp03 {
+			opp-hz = /bits/ 64 <300000000>;
+		};
+		opp04 {
+			opp-hz = /bits/ 64 <333000000>;
+		};
+	};
+
+	bus_g2d_acp_opp_table: opp_table10 {
+		compatible = "operating-points-v2";
+
+		opp00 {
+			opp-hz = /bits/ 64 <67000000>;
+		};
+		opp01 {
+			opp-hz = /bits/ 64 <133000000>;
+		};
+		opp02 {
+			opp-hz = /bits/ 64 <178000000>;
+		};
+		opp03 {
+			opp-hz = /bits/ 64 <267000000>;
+		};
+	};
+
+	bus_jpeg_opp_table: opp_table11 {
+		compatible = "operating-points-v2";
+
+		opp00 {
+			opp-hz = /bits/ 64 <75000000>;
+		};
+		opp01 {
+			opp-hz = /bits/ 64 <150000000>;
+		};
+		opp02 {
+			opp-hz = /bits/ 64 <200000000>;
+		};
+		opp03 {
+			opp-hz = /bits/ 64 <300000000>;
+		};
+	};
+
+	bus_jpeg_apb_opp_table: opp_table12 {
+		compatible = "operating-points-v2";
+
+		opp00 {
+			opp-hz = /bits/ 64 <84000000>;
+		};
+		opp01 {
+			opp-hz = /bits/ 64 <111000000>;
+		};
+		opp02 {
+			opp-hz = /bits/ 64 <134000000>;
+		};
+		opp03 {
+			opp-hz = /bits/ 64 <167000000>;
+		};
+	};
+
+	bus_disp1_fimd_opp_table: opp_table13 {
+		compatible = "operating-points-v2";
+
+		opp00 {
+			opp-hz = /bits/ 64 <120000000>;
+		};
+		opp01 {
+			opp-hz = /bits/ 64 <200000000>;
+		};
+	};
+
+	bus_disp1_opp_table: opp_table14 {
+		compatible = "operating-points-v2";
+
+		opp00 {
+			opp-hz = /bits/ 64 <120000000>;
+		};
+		opp01 {
+			opp-hz = /bits/ 64 <200000000>;
+		};
+		opp02 {
+			opp-hz = /bits/ 64 <300000000>;
+		};
+	};
+
+	bus_gscl_opp_table: opp_table15 {
+		compatible = "operating-points-v2";
+
+		opp00 {
+			opp-hz = /bits/ 64 <150000000>;
+		};
+		opp01 {
+			opp-hz = /bits/ 64 <200000000>;
+		};
+		opp02 {
+			opp-hz = /bits/ 64 <300000000>;
+		};
+	};
+
+	bus_mscl_opp_table: opp_table16 {
+		compatible = "operating-points-v2";
+
+		opp00 {
+			opp-hz = /bits/ 64 <84000000>;
+		};
+		opp01 {
+			opp-hz = /bits/ 64 <167000000>;
+		};
+		opp02 {
+			opp-hz = /bits/ 64 <222000000>;
+		};
+		opp03 {
+			opp-hz = /bits/ 64 <333000000>;
+		};
+		opp04 {
+			opp-hz = /bits/ 64 <400000000>;
+		};
+	};
 };
 
 &dp {
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
index 1bd507bfa750..d32984c5ff93 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
@@ -56,6 +56,89 @@
 	};
 };
 
+&bus_wcore {
+	devfreq-events = <&nocp_mem0_0>, <&nocp_mem0_1>,
+			<&nocp_mem1_0>, <&nocp_mem1_1>;
+	vdd-supply = <&buck3_reg>;
+	exynos,saturation-ratio = <100>;
+	status = "okay";
+};
+
+&bus_noc {
+	devfreq = <&bus_wcore>;
+	status = "okay";
+};
+
+&bus_fsys_apb {
+	devfreq = <&bus_wcore>;
+	status = "okay";
+};
+
+&bus_fsys {
+	devfreq = <&bus_wcore>;
+	status = "okay";
+};
+
+&bus_fsys2 {
+	devfreq = <&bus_wcore>;
+	status = "okay";
+};
+
+&bus_mfc {
+	devfreq = <&bus_wcore>;
+	status = "okay";
+};
+
+&bus_gen {
+	devfreq = <&bus_wcore>;
+	status = "okay";
+};
+
+&bus_peri {
+	devfreq = <&bus_wcore>;
+	status = "okay";
+};
+
+&bus_g2d {
+	devfreq = <&bus_wcore>;
+	status = "okay";
+};
+
+&bus_g2d_acp {
+	devfreq = <&bus_wcore>;
+	status = "okay";
+};
+
+&bus_jpeg {
+	devfreq = <&bus_wcore>;
+	status = "okay";
+};
+
+&bus_jpeg_apb {
+	devfreq = <&bus_wcore>;
+	status = "okay";
+};
+
+&bus_disp1_fimd {
+	devfreq = <&bus_wcore>;
+	status = "okay";
+};
+
+&bus_disp1 {
+	devfreq = <&bus_wcore>;
+	status = "okay";
+};
+
+&bus_gscl_scaler {
+	devfreq = <&bus_wcore>;
+	status = "okay";
+};
+
+&bus_mscl {
+	devfreq = <&bus_wcore>;
+	status = "okay";
+};
+
 &clock_audss {
 	assigned-clocks = <&clock_audss EXYNOS_MOUT_AUDSS>,
 			<&clock_audss EXYNOS_MOUT_I2S>,
@@ -361,6 +444,22 @@
 	cap-sd-highspeed;
 };
 
+&nocp_mem0_0 {
+	status = "okay";
+};
+
+&nocp_mem0_1 {
+	status = "okay";
+};
+
+&nocp_mem1_0 {
+	status = "okay";
+};
+
+&nocp_mem1_1 {
+	status = "okay";
+};
+
 &pinctrl_0 {
 	hdmi_hpd_irq: hdmi-hpd-irq {
 		samsung,pins = "gpx3-7";