There is no need to keep DMA controller nodes under AMBA bus node.
Remove the "amba" node to fix dtschema warnings like:

    amba: $nodename:0: 'amba' does not match 
'^(bus|soc|axi|ahb|apb)(@[0-9a-f]+)?$'

Signed-off-by: Krzysztof Kozlowski <k...@kernel.org>

---

Changes since v2:
1. Keep the alphabetical order in exynos4210-universal_c210.dts, as suggested 
by Marek

Changes since v1:
1. Remove the bus, as suggested by Marek
---
 arch/arm/boot/dts/exynos3250.dtsi             |  47 +++----
 arch/arm/boot/dts/exynos4.dtsi                |  70 +++++-----
 .../boot/dts/exynos4210-universal_c210.dts    |  28 ++--
 arch/arm/boot/dts/exynos5250.dtsi             |  92 ++++++-------
 arch/arm/boot/dts/exynos5410.dtsi             |  46 +++----
 arch/arm/boot/dts/exynos5420.dtsi             | 130 ++++++++----------
 6 files changed, 187 insertions(+), 226 deletions(-)

diff --git a/arch/arm/boot/dts/exynos3250.dtsi 
b/arch/arm/boot/dts/exynos3250.dtsi
index 044e5da64a76..d3fb45a56527 100644
--- a/arch/arm/boot/dts/exynos3250.dtsi
+++ b/arch/arm/boot/dts/exynos3250.dtsi
@@ -418,33 +418,26 @@
                        status = "disabled";
                };
 
-               amba {
-                       compatible = "simple-bus";
-                       #address-cells = <1>;
-                       #size-cells = <1>;
-                       ranges;
-
-                       pdma0: pdma@12680000 {
-                               compatible = "arm,pl330", "arm,primecell";
-                               reg = <0x12680000 0x1000>;
-                               interrupts = <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>;
-                               clocks = <&cmu CLK_PDMA0>;
-                               clock-names = "apb_pclk";
-                               #dma-cells = <1>;
-                               #dma-channels = <8>;
-                               #dma-requests = <32>;
-                       };
-
-                       pdma1: pdma@12690000 {
-                               compatible = "arm,pl330", "arm,primecell";
-                               reg = <0x12690000 0x1000>;
-                               interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>;
-                               clocks = <&cmu CLK_PDMA1>;
-                               clock-names = "apb_pclk";
-                               #dma-cells = <1>;
-                               #dma-channels = <8>;
-                               #dma-requests = <32>;
-                       };
+               pdma0: pdma@12680000 {
+                       compatible = "arm,pl330", "arm,primecell";
+                       reg = <0x12680000 0x1000>;
+                       interrupts = <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&cmu CLK_PDMA0>;
+                       clock-names = "apb_pclk";
+                       #dma-cells = <1>;
+                       #dma-channels = <8>;
+                       #dma-requests = <32>;
+               };
+
+               pdma1: pdma@12690000 {
+                       compatible = "arm,pl330", "arm,primecell";
+                       reg = <0x12690000 0x1000>;
+                       interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&cmu CLK_PDMA1>;
+                       clock-names = "apb_pclk";
+                       #dma-cells = <1>;
+                       #dma-channels = <8>;
+                       #dma-requests = <32>;
                };
 
                adc: adc@126c0000 {
diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
index d2779a790ce3..a1e54449f33f 100644
--- a/arch/arm/boot/dts/exynos4.dtsi
+++ b/arch/arm/boot/dts/exynos4.dtsi
@@ -669,45 +669,37 @@
                        status = "disabled";
                };
 
-               amba: amba {
-                       #address-cells = <1>;
-                       #size-cells = <1>;
-                       compatible = "simple-bus";
-                       interrupt-parent = <&gic>;
-                       ranges;
-
-                       pdma0: pdma@12680000 {
-                               compatible = "arm,pl330", "arm,primecell";
-                               reg = <0x12680000 0x1000>;
-                               interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
-                               clocks = <&clock CLK_PDMA0>;
-                               clock-names = "apb_pclk";
-                               #dma-cells = <1>;
-                               #dma-channels = <8>;
-                               #dma-requests = <32>;
-                       };
-
-                       pdma1: pdma@12690000 {
-                               compatible = "arm,pl330", "arm,primecell";
-                               reg = <0x12690000 0x1000>;
-                               interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
-                               clocks = <&clock CLK_PDMA1>;
-                               clock-names = "apb_pclk";
-                               #dma-cells = <1>;
-                               #dma-channels = <8>;
-                               #dma-requests = <32>;
-                       };
-
-                       mdma1: mdma@12850000 {
-                               compatible = "arm,pl330", "arm,primecell";
-                               reg = <0x12850000 0x1000>;
-                               interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
-                               clocks = <&clock CLK_MDMA>;
-                               clock-names = "apb_pclk";
-                               #dma-cells = <1>;
-                               #dma-channels = <8>;
-                               #dma-requests = <1>;
-                       };
+               pdma0: pdma@12680000 {
+                       compatible = "arm,pl330", "arm,primecell";
+                       reg = <0x12680000 0x1000>;
+                       interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&clock CLK_PDMA0>;
+                       clock-names = "apb_pclk";
+                       #dma-cells = <1>;
+                       #dma-channels = <8>;
+                       #dma-requests = <32>;
+               };
+
+               pdma1: pdma@12690000 {
+                       compatible = "arm,pl330", "arm,primecell";
+                       reg = <0x12690000 0x1000>;
+                       interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&clock CLK_PDMA1>;
+                       clock-names = "apb_pclk";
+                       #dma-cells = <1>;
+                       #dma-channels = <8>;
+                       #dma-requests = <32>;
+               };
+
+               mdma1: mdma@12850000 {
+                       compatible = "arm,pl330", "arm,primecell";
+                       reg = <0x12850000 0x1000>;
+                       interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&clock CLK_MDMA>;
+                       clock-names = "apb_pclk";
+                       #dma-cells = <1>;
+                       #dma-channels = <8>;
+                       #dma-requests = <1>;
                };
 
                fimd: fimd@11c00000 {
diff --git a/arch/arm/boot/dts/exynos4210-universal_c210.dts 
b/arch/arm/boot/dts/exynos4210-universal_c210.dts
index 02fde1a75ebd..99ce53b120ac 100644
--- a/arch/arm/boot/dts/exynos4210-universal_c210.dts
+++ b/arch/arm/boot/dts/exynos4210-universal_c210.dts
@@ -181,20 +181,6 @@
        };
 };
 
-&amba {
-       mdma0: mdma@12840000 {
-               compatible = "arm,pl330", "arm,primecell";
-               reg = <0x12840000 0x1000>;
-               interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
-               clocks = <&clock CLK_MDMA>;
-               clock-names = "apb_pclk";
-               #dma-cells = <1>;
-               #dma-channels = <8>;
-               #dma-requests = <1>;
-               power-domains = <&pd_lcd0>;
-       };
-};
-
 &camera {
        status = "okay";
 
@@ -616,6 +602,20 @@
        /delete-property/dma-names;
 };
 
+&soc {
+       mdma0: mdma@12840000 {
+               compatible = "arm,pl330", "arm,primecell";
+               reg = <0x12840000 0x1000>;
+               interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&clock CLK_MDMA>;
+               clock-names = "apb_pclk";
+               #dma-cells = <1>;
+               #dma-channels = <8>;
+               #dma-requests = <1>;
+               power-domains = <&pd_lcd0>;
+       };
+};
+
 &sysram {
        smp-sram@0 {
                status = "disabled";
diff --git a/arch/arm/boot/dts/exynos5250.dtsi 
b/arch/arm/boot/dts/exynos5250.dtsi
index b6135af7ef39..e3dbe4166836 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -679,56 +679,48 @@
                        samsung,pmureg-phandle = <&pmu_system_controller>;
                };
 
-               amba {
-                       #address-cells = <1>;
-                       #size-cells = <1>;
-                       compatible = "simple-bus";
-                       interrupt-parent = <&gic>;
-                       ranges;
-
-                       pdma0: pdma@121a0000 {
-                               compatible = "arm,pl330", "arm,primecell";
-                               reg = <0x121A0000 0x1000>;
-                               interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
-                               clocks = <&clock CLK_PDMA0>;
-                               clock-names = "apb_pclk";
-                               #dma-cells = <1>;
-                               #dma-channels = <8>;
-                               #dma-requests = <32>;
-                       };
-
-                       pdma1: pdma@121b0000 {
-                               compatible = "arm,pl330", "arm,primecell";
-                               reg = <0x121B0000 0x1000>;
-                               interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
-                               clocks = <&clock CLK_PDMA1>;
-                               clock-names = "apb_pclk";
-                               #dma-cells = <1>;
-                               #dma-channels = <8>;
-                               #dma-requests = <32>;
-                       };
-
-                       mdma0: mdma@10800000 {
-                               compatible = "arm,pl330", "arm,primecell";
-                               reg = <0x10800000 0x1000>;
-                               interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
-                               clocks = <&clock CLK_MDMA0>;
-                               clock-names = "apb_pclk";
-                               #dma-cells = <1>;
-                               #dma-channels = <8>;
-                               #dma-requests = <1>;
-                       };
-
-                       mdma1: mdma@11c10000 {
-                               compatible = "arm,pl330", "arm,primecell";
-                               reg = <0x11C10000 0x1000>;
-                               interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>;
-                               clocks = <&clock CLK_MDMA1>;
-                               clock-names = "apb_pclk";
-                               #dma-cells = <1>;
-                               #dma-channels = <8>;
-                               #dma-requests = <1>;
-                       };
+               pdma0: pdma@121a0000 {
+                       compatible = "arm,pl330", "arm,primecell";
+                       reg = <0x121A0000 0x1000>;
+                       interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&clock CLK_PDMA0>;
+                       clock-names = "apb_pclk";
+                       #dma-cells = <1>;
+                       #dma-channels = <8>;
+                       #dma-requests = <32>;
+               };
+
+               pdma1: pdma@121b0000 {
+                       compatible = "arm,pl330", "arm,primecell";
+                       reg = <0x121B0000 0x1000>;
+                       interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&clock CLK_PDMA1>;
+                       clock-names = "apb_pclk";
+                       #dma-cells = <1>;
+                       #dma-channels = <8>;
+                       #dma-requests = <32>;
+               };
+
+               mdma0: mdma@10800000 {
+                       compatible = "arm,pl330", "arm,primecell";
+                       reg = <0x10800000 0x1000>;
+                       interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&clock CLK_MDMA0>;
+                       clock-names = "apb_pclk";
+                       #dma-cells = <1>;
+                       #dma-channels = <8>;
+                       #dma-requests = <1>;
+               };
+
+               mdma1: mdma@11c10000 {
+                       compatible = "arm,pl330", "arm,primecell";
+                       reg = <0x11C10000 0x1000>;
+                       interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&clock CLK_MDMA1>;
+                       clock-names = "apb_pclk";
+                       #dma-cells = <1>;
+                       #dma-channels = <8>;
+                       #dma-requests = <1>;
                };
 
                gsc_0:  gsc@13e00000 {
diff --git a/arch/arm/boot/dts/exynos5410.dtsi 
b/arch/arm/boot/dts/exynos5410.dtsi
index 2eab80bf5f3a..abe75b9e39f5 100644
--- a/arch/arm/boot/dts/exynos5410.dtsi
+++ b/arch/arm/boot/dts/exynos5410.dtsi
@@ -189,34 +189,26 @@
                        interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
                };
 
-               amba {
-                       #address-cells = <1>;
-                       #size-cells = <1>;
-                       compatible = "simple-bus";
-                       interrupt-parent = <&gic>;
-                       ranges;
-
-                       pdma0: pdma@121a0000 {
-                               compatible = "arm,pl330", "arm,primecell";
-                               reg = <0x121a0000 0x1000>;
-                               interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
-                               clocks = <&clock CLK_PDMA0>;
-                               clock-names = "apb_pclk";
-                               #dma-cells = <1>;
-                               #dma-channels = <8>;
-                               #dma-requests = <32>;
-                       };
+               pdma0: pdma@121a0000 {
+                       compatible = "arm,pl330", "arm,primecell";
+                       reg = <0x121a0000 0x1000>;
+                       interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&clock CLK_PDMA0>;
+                       clock-names = "apb_pclk";
+                       #dma-cells = <1>;
+                       #dma-channels = <8>;
+                       #dma-requests = <32>;
+               };
 
-                       pdma1: pdma@121b0000 {
-                               compatible = "arm,pl330", "arm,primecell";
-                               reg = <0x121b0000 0x1000>;
-                               interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
-                               clocks = <&clock CLK_PDMA1>;
-                               clock-names = "apb_pclk";
-                               #dma-cells = <1>;
-                               #dma-channels = <8>;
-                               #dma-requests = <32>;
-                       };
+               pdma1: pdma@121b0000 {
+                       compatible = "arm,pl330", "arm,primecell";
+                       reg = <0x121b0000 0x1000>;
+                       interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&clock CLK_PDMA1>;
+                       clock-names = "apb_pclk";
+                       #dma-cells = <1>;
+                       #dma-channels = <8>;
+                       #dma-requests = <32>;
                };
 
                audi2s0: i2s@3830000 {
diff --git a/arch/arm/boot/dts/exynos5420.dtsi 
b/arch/arm/boot/dts/exynos5420.dtsi
index b672080e7469..c76460b70532 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -433,76 +433,68 @@
                        power-domains = <&mau_pd>;
                };
 
-               amba {
-                       #address-cells = <1>;
-                       #size-cells = <1>;
-                       compatible = "simple-bus";
-                       interrupt-parent = <&gic>;
-                       ranges;
-
-                       adma: adma@3880000 {
-                               compatible = "arm,pl330", "arm,primecell";
-                               reg = <0x03880000 0x1000>;
-                               interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
-                               clocks = <&clock_audss EXYNOS_ADMA>;
-                               clock-names = "apb_pclk";
-                               #dma-cells = <1>;
-                               #dma-channels = <6>;
-                               #dma-requests = <16>;
-                               power-domains = <&mau_pd>;
-                       };
-
-                       pdma0: pdma@121a0000 {
-                               compatible = "arm,pl330", "arm,primecell";
-                               reg = <0x121A0000 0x1000>;
-                               interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
-                               clocks = <&clock CLK_PDMA0>;
-                               clock-names = "apb_pclk";
-                               #dma-cells = <1>;
-                               #dma-channels = <8>;
-                               #dma-requests = <32>;
-                       };
-
-                       pdma1: pdma@121b0000 {
-                               compatible = "arm,pl330", "arm,primecell";
-                               reg = <0x121B0000 0x1000>;
-                               interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
-                               clocks = <&clock CLK_PDMA1>;
-                               clock-names = "apb_pclk";
-                               #dma-cells = <1>;
-                               #dma-channels = <8>;
-                               #dma-requests = <32>;
-                       };
-
-                       mdma0: mdma@10800000 {
-                               compatible = "arm,pl330", "arm,primecell";
-                               reg = <0x10800000 0x1000>;
-                               interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
-                               clocks = <&clock CLK_MDMA0>;
-                               clock-names = "apb_pclk";
-                               #dma-cells = <1>;
-                               #dma-channels = <8>;
-                               #dma-requests = <1>;
-                       };
+               adma: adma@3880000 {
+                       compatible = "arm,pl330", "arm,primecell";
+                       reg = <0x03880000 0x1000>;
+                       interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&clock_audss EXYNOS_ADMA>;
+                       clock-names = "apb_pclk";
+                       #dma-cells = <1>;
+                       #dma-channels = <6>;
+                       #dma-requests = <16>;
+                       power-domains = <&mau_pd>;
+               };
 
-                       mdma1: mdma@11c10000 {
-                               compatible = "arm,pl330", "arm,primecell";
-                               reg = <0x11C10000 0x1000>;
-                               interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>;
-                               clocks = <&clock CLK_MDMA1>;
-                               clock-names = "apb_pclk";
-                               #dma-cells = <1>;
-                               #dma-channels = <8>;
-                               #dma-requests = <1>;
-                               /*
-                                * MDMA1 can support both secure and non-secure
-                                * AXI transactions. When this is enabled in
-                                * the kernel for boards that run in secure
-                                * mode, we are getting imprecise external
-                                * aborts causing the kernel to oops.
-                                */
-                               status = "disabled";
-                       };
+               pdma0: pdma@121a0000 {
+                       compatible = "arm,pl330", "arm,primecell";
+                       reg = <0x121A0000 0x1000>;
+                       interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&clock CLK_PDMA0>;
+                       clock-names = "apb_pclk";
+                       #dma-cells = <1>;
+                       #dma-channels = <8>;
+                       #dma-requests = <32>;
+               };
+
+               pdma1: pdma@121b0000 {
+                       compatible = "arm,pl330", "arm,primecell";
+                       reg = <0x121B0000 0x1000>;
+                       interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&clock CLK_PDMA1>;
+                       clock-names = "apb_pclk";
+                       #dma-cells = <1>;
+                       #dma-channels = <8>;
+                       #dma-requests = <32>;
+               };
+
+               mdma0: mdma@10800000 {
+                       compatible = "arm,pl330", "arm,primecell";
+                       reg = <0x10800000 0x1000>;
+                       interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&clock CLK_MDMA0>;
+                       clock-names = "apb_pclk";
+                       #dma-cells = <1>;
+                       #dma-channels = <8>;
+                       #dma-requests = <1>;
+               };
+
+               mdma1: mdma@11c10000 {
+                       compatible = "arm,pl330", "arm,primecell";
+                       reg = <0x11C10000 0x1000>;
+                       interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&clock CLK_MDMA1>;
+                       clock-names = "apb_pclk";
+                       #dma-cells = <1>;
+                       #dma-channels = <8>;
+                       #dma-requests = <1>;
+                       /*
+                        * MDMA1 can support both secure and non-secure
+                        * AXI transactions. When this is enabled in
+                        * the kernel for boards that run in secure
+                        * mode, we are getting imprecise external
+                        * aborts causing the kernel to oops.
+                        */
+                       status = "disabled";
                };
 
                i2s0: i2s@3830000 {
-- 
2.17.1

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