ARM, ARM64: dts: drop "arm,amba-bus" in favor of "simple-bus"

The compatible string "simple-bus" is well defined in ePAPR, while
I see no documentation for the "arm,amba-bus" arnywhere in ePAPR or
Documentation/devicetree/.

DT is also used by other projects than Linux kernel.  It is not a
good idea to rely on such an unofficial binding.

This commit
  - replaces "arm,amba-bus" with "simple-bus"
  - drops "arm,amba-bus" where it is used along with "simple-bus"

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
diff --git a/arch/arm/boot/dts/axm55xx.dtsi b/arch/arm/boot/dts/axm55xx.dtsi
index ea288f0..a9d6d59 100644
--- a/arch/arm/boot/dts/axm55xx.dtsi
+++ b/arch/arm/boot/dts/axm55xx.dtsi
@@ -107,7 +107,7 @@
 		};
 
 		amba {
-			compatible = "arm,amba-bus";
+			compatible = "simple-bus";
 			#address-cells = <2>;
 			#size-cells = <2>;
 			ranges;
diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
index d9c2215..137f901 100644
--- a/arch/arm/boot/dts/exynos3250.dtsi
+++ b/arch/arm/boot/dts/exynos3250.dtsi
@@ -368,7 +368,7 @@
 		};
 
 		amba {
-			compatible = "arm,amba-bus";
+			compatible = "simple-bus";
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges;
diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
index 5456094..c679b3c 100644
--- a/arch/arm/boot/dts/exynos4.dtsi
+++ b/arch/arm/boot/dts/exynos4.dtsi
@@ -653,7 +653,7 @@
 	amba {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "arm,amba-bus";
+		compatible = "simple-bus";
 		interrupt-parent = <&gic>;
 		ranges;
 
diff --git a/arch/arm/boot/dts/exynos4415.dtsi b/arch/arm/boot/dts/exynos4415.dtsi
index ad76484..28b04b6 100644
--- a/arch/arm/boot/dts/exynos4415.dtsi
+++ b/arch/arm/boot/dts/exynos4415.dtsi
@@ -380,7 +380,7 @@
 		};
 
 		amba {
-			compatible = "arm,amba-bus";
+			compatible = "simple-bus";
 			#address-cells = <1>;
 			#size-cells = <1>;
 			interrupt-parent = <&gic>;
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 2344034..e653ae0 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -674,7 +674,7 @@
 	amba {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "arm,amba-bus";
+		compatible = "simple-bus";
 		interrupt-parent = <&gic>;
 		ranges;
 
diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index bb559d0..7b99cb5 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -375,7 +375,7 @@
 	amba {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "arm,amba-bus";
+		compatible = "simple-bus";
 		interrupt-parent = <&gic>;
 		ranges;
 
diff --git a/arch/arm/boot/dts/exynos5440.dtsi b/arch/arm/boot/dts/exynos5440.dtsi
index f18b51f..b9342ec 100644
--- a/arch/arm/boot/dts/exynos5440.dtsi
+++ b/arch/arm/boot/dts/exynos5440.dtsi
@@ -200,7 +200,7 @@
 	amba {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "arm,amba-bus";
+		compatible = "simple-bus";
 		interrupt-parent = <&gic>;
 		ranges;
 	};
diff --git a/arch/arm/boot/dts/hi3620.dtsi b/arch/arm/boot/dts/hi3620.dtsi
index 6cbb62e..c85d07e 100644
--- a/arch/arm/boot/dts/hi3620.dtsi
+++ b/arch/arm/boot/dts/hi3620.dtsi
@@ -68,7 +68,7 @@
 
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "arm,amba-bus";
+		compatible = "simple-bus";
 		interrupt-parent = <&gic>;
 		ranges = <0 0xfc000000 0x2000000>;
 
diff --git a/arch/arm/boot/dts/hip01.dtsi b/arch/arm/boot/dts/hip01.dtsi
index 33130f8..4e9562f 100644
--- a/arch/arm/boot/dts/hip01.dtsi
+++ b/arch/arm/boot/dts/hip01.dtsi
@@ -43,7 +43,7 @@
 		amba {
 			#address-cells = <1>;
 			#size-cells = <1>;
-			compatible = "arm,amba-bus";
+			compatible = "simple-bus";
 			ranges;
 
 			uart0: uart@10001000 {
diff --git a/arch/arm/boot/dts/hisi-x5hd2.dtsi b/arch/arm/boot/dts/hisi-x5hd2.dtsi
index c52722b..fdcc23d 100644
--- a/arch/arm/boot/dts/hisi-x5hd2.dtsi
+++ b/arch/arm/boot/dts/hisi-x5hd2.dtsi
@@ -34,7 +34,7 @@
 		amba {
 			#address-cells = <1>;
 			#size-cells = <1>;
-			compatible = "arm,amba-bus";
+			compatible = "simple-bus";
 			ranges;
 
 			timer0: timer@00002000 {
diff --git a/arch/arm/boot/dts/integrator.dtsi b/arch/arm/boot/dts/integrator.dtsi
index 3807d4f..b82f0e6 100644
--- a/arch/arm/boot/dts/integrator.dtsi
+++ b/arch/arm/boot/dts/integrator.dtsi
@@ -57,7 +57,7 @@
 	};
 
 	fpga {
-		compatible = "arm,amba-bus", "simple-bus";
+		compatible = "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges;
diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi
index 609123e..65d0e8d 100644
--- a/arch/arm/boot/dts/qcom-apq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
@@ -722,7 +722,7 @@
 		};
 
 		amba {
-			compatible = "arm,amba-bus";
+			compatible = "simple-bus";
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges;
diff --git a/arch/arm/boot/dts/qcom-msm8660.dtsi b/arch/arm/boot/dts/qcom-msm8660.dtsi
index a4b184d..cd21403 100644
--- a/arch/arm/boot/dts/qcom-msm8660.dtsi
+++ b/arch/arm/boot/dts/qcom-msm8660.dtsi
@@ -187,7 +187,7 @@
 		};
 
 		amba {
-			compatible = "arm,amba-bus";
+			compatible = "simple-bus";
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges;
diff --git a/arch/arm/boot/dts/qcom-msm8960.dtsi b/arch/arm/boot/dts/qcom-msm8960.dtsi
index 51a40d8..da05e28 100644
--- a/arch/arm/boot/dts/qcom-msm8960.dtsi
+++ b/arch/arm/boot/dts/qcom-msm8960.dtsi
@@ -251,7 +251,7 @@
 		};
 
 		amba {
-			compatible = "arm,amba-bus";
+			compatible = "simple-bus";
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges;
diff --git a/arch/arm/boot/dts/rk3036.dtsi b/arch/arm/boot/dts/rk3036.dtsi
index 3864fa1..597fdc4 100644
--- a/arch/arm/boot/dts/rk3036.dtsi
+++ b/arch/arm/boot/dts/rk3036.dtsi
@@ -95,7 +95,7 @@
 	};
 
 	amba {
-		compatible = "arm,amba-bus";
+		compatible = "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges;
diff --git a/arch/arm/boot/dts/rk3228.dtsi b/arch/arm/boot/dts/rk3228.dtsi
index 119ff12..4dae42a 100644
--- a/arch/arm/boot/dts/rk3228.dtsi
+++ b/arch/arm/boot/dts/rk3228.dtsi
@@ -96,7 +96,7 @@
 	};
 
 	amba {
-		compatible = "arm,amba-bus";
+		compatible = "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges;
diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 0934b6a..31f7e20 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -134,7 +134,7 @@
 	};
 
 	amba {
-		compatible = "arm,amba-bus";
+		compatible = "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges;
diff --git a/arch/arm/boot/dts/rk3xxx.dtsi b/arch/arm/boot/dts/rk3xxx.dtsi
index f1581f9..99bbcc2 100644
--- a/arch/arm/boot/dts/rk3xxx.dtsi
+++ b/arch/arm/boot/dts/rk3xxx.dtsi
@@ -67,7 +67,7 @@
 	};
 
 	amba {
-		compatible = "arm,amba-bus";
+		compatible = "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges;
diff --git a/arch/arm/boot/dts/s5pv210.dtsi b/arch/arm/boot/dts/s5pv210.dtsi
index 8344a0e..ffc36bd 100644
--- a/arch/arm/boot/dts/s5pv210.dtsi
+++ b/arch/arm/boot/dts/s5pv210.dtsi
@@ -130,7 +130,7 @@
 		amba {
 			#address-cells = <1>;
 			#size-cells = <1>;
-			compatible = "arm,amba-bus";
+			compatible = "simple-bus";
 			ranges;
 
 			pdma0: dma@e0900000 {
diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index 3ed4abd..ece1169 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -69,7 +69,7 @@
 		ranges;
 
 		amba {
-			compatible = "arm,amba-bus";
+			compatible = "simple-bus";
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges;
diff --git a/arch/arm/boot/dts/socfpga_arria10.dtsi b/arch/arm/boot/dts/socfpga_arria10.dtsi
index cce9e50..1c5e139 100644
--- a/arch/arm/boot/dts/socfpga_arria10.dtsi
+++ b/arch/arm/boot/dts/socfpga_arria10.dtsi
@@ -63,7 +63,7 @@
 		ranges;
 
 		amba {
-			compatible = "arm,amba-bus";
+			compatible = "simple-bus";
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges;
diff --git a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
index 27a333e..e2be533 100644
--- a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
+++ b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
@@ -721,7 +721,7 @@
 	};
 
 	amba {
-		compatible = "arm,amba-bus";
+		compatible = "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges;
diff --git a/arch/arm/boot/dts/ste-u300.dts b/arch/arm/boot/dts/ste-u300.dts
index 9c73ac2..2f5107f 100644
--- a/arch/arm/boot/dts/ste-u300.dts
+++ b/arch/arm/boot/dts/ste-u300.dts
@@ -384,7 +384,7 @@
 	};
 
 	amba {
-		compatible = "arm,amba-bus";
+		compatible = "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges;
diff --git a/arch/arm/boot/dts/versatile-ab.dts b/arch/arm/boot/dts/versatile-ab.dts
index 6fd7efb..d23320a 100644
--- a/arch/arm/boot/dts/versatile-ab.dts
+++ b/arch/arm/boot/dts/versatile-ab.dts
@@ -148,7 +148,7 @@
 	};
 
 	amba {
-		compatible = "arm,amba-bus";
+		compatible = "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges;
diff --git a/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi b/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi
index 21b0287..7a556b9 100644
--- a/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi
+++ b/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi
@@ -66,7 +66,7 @@
 		};
 
 		iofpga@3,00000000 {
-			compatible = "arm,amba-bus", "simple-bus";
+			compatible = "simple-bus";
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges = <0 3 0 0x200000>;
diff --git a/arch/arm/boot/dts/vexpress-v2m.dtsi b/arch/arm/boot/dts/vexpress-v2m.dtsi
index e712c0a..47e4a11 100644
--- a/arch/arm/boot/dts/vexpress-v2m.dtsi
+++ b/arch/arm/boot/dts/vexpress-v2m.dtsi
@@ -65,7 +65,7 @@
 		};
 
 		iofpga@7,00000000 {
-			compatible = "arm,amba-bus", "simple-bus";
+			compatible = "simple-bus";
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges = <0 7 0 0x20000>;