Set Clock Management Unit clocks for the UART nodes of Actions Semi
S500 SoCs and remove the dummy "uart2_clk" and "uart3_clk" fixed clocks.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
Reviewed-by: Manivannan Sadhasivam <redacted>
---
Changes in v3:
  - Added Reviewed-by from Mani
  - Removed the dummy 'uart2_clk' and 'uart3_clk' nodes from all owl-s500 DTS,
    per Mani's review

  arch/arm/boot/dts/owl-s500-cubieboard6.dts     | 7 -------
  arch/arm/boot/dts/owl-s500-guitar-bb-rev-b.dts | 7 -------
  arch/arm/boot/dts/owl-s500-labrador-base-m.dts | 7 -------
  arch/arm/boot/dts/owl-s500-roseapplepi.dts     | 7 -------
  arch/arm/boot/dts/owl-s500-sparky.dts          | 7 -------
  arch/arm/boot/dts/owl-s500.dtsi                | 7 +++++++
  6 files changed, 7 insertions(+), 35 deletions(-)

diff --git a/arch/arm/boot/dts/owl-s500-cubieboard6.dts b/arch/arm/boot/dts/owl-s500-cubieboard6.dts
index 7c96c59b610d..c2b02895910c 100644
--- a/arch/arm/boot/dts/owl-s500-cubieboard6.dts
+++ b/arch/arm/boot/dts/owl-s500-cubieboard6.dts

@@ -25,12 +25,6 @@ memory@0 {
  		device_type = "memory";
  		reg = <0x0 0x80000000>;
  	};
-
-	uart3_clk: uart3-clk {
-		compatible = "fixed-clock";
-		clock-frequency = <921600>;
-		#clock-cells = <0>;
-	};
  };
  
  &timer {

@@ -39,5 +33,4 @@ &timer {
  
  &uart3 {
  	status = "okay";
-	clocks = <&uart3_clk>;
  };

diff --git a/arch/arm/boot/dts/owl-s500-guitar-bb-rev-b.dts b/arch/arm/boot/dts/owl-s500-guitar-bb-rev-b.dts
index e610d49395d2..7ae34a23e320 100644
--- a/arch/arm/boot/dts/owl-s500-guitar-bb-rev-b.dts
+++ b/arch/arm/boot/dts/owl-s500-guitar-bb-rev-b.dts

@@ -18,15 +18,8 @@ aliases {
  	chosen {
  		stdout-path = "serial3:115200n8";
  	};
-
-	uart3_clk: uart3-clk {
-		compatible = "fixed-clock";
-		clock-frequency = <921600>;
-		#clock-cells = <0>;
-	};
  };
  
  &uart3 {
  	status = "okay";
-	clocks = <&uart3_clk>;
  };

diff --git a/arch/arm/boot/dts/owl-s500-labrador-base-m.dts b/arch/arm/boot/dts/owl-s500-labrador-base-m.dts
index c92f8bdcb331..1585e33f703b 100644
--- a/arch/arm/boot/dts/owl-s500-labrador-base-m.dts
+++ b/arch/arm/boot/dts/owl-s500-labrador-base-m.dts

@@ -21,15 +21,8 @@ aliases {
  	chosen {
  		stdout-path = "serial3:115200n8";
  	};
-
-	uart3_clk: uart3-clk {
-		compatible = "fixed-clock";
-		clock-frequency = <921600>;
-		#clock-cells = <0>;
-	};
  };
  
  &uart3 {
  	status = "okay";
-	clocks = <&uart3_clk>;
  };

diff --git a/arch/arm/boot/dts/owl-s500-roseapplepi.dts b/arch/arm/boot/dts/owl-s500-roseapplepi.dts
index a2087e617cb2..800edf5d2d12 100644
--- a/arch/arm/boot/dts/owl-s500-roseapplepi.dts
+++ b/arch/arm/boot/dts/owl-s500-roseapplepi.dts

@@ -25,12 +25,6 @@ memory@0 {
  		device_type = "memory";
  		reg = <0x0 0x80000000>; /* 2GB */
  	};
-
-	uart2_clk: uart2-clk {
-		compatible = "fixed-clock";
-		clock-frequency = <921600>;
-		#clock-cells = <0>;
-	};
  };
  
  &twd_timer {

@@ -43,5 +37,4 @@ &timer {
  
  &uart2 {
  	status = "okay";
-	clocks = <&uart2_clk>;
  };

diff --git a/arch/arm/boot/dts/owl-s500-sparky.dts b/arch/arm/boot/dts/owl-s500-sparky.dts
index c665ce8b88b4..9d8f7336bec0 100644
--- a/arch/arm/boot/dts/owl-s500-sparky.dts
+++ b/arch/arm/boot/dts/owl-s500-sparky.dts

@@ -25,12 +25,6 @@ memory@0 {
  		device_type = "memory";
  		reg = <0x0 0x40000000>; /* 1 or 2 GiB */
  	};
-
-	uart3_clk: uart3-clk {
-		compatible = "fixed-clock";
-		clock-frequency = <921600>;
-		#clock-cells = <0>;
-	};
  };
  
  &timer {

@@ -39,5 +33,4 @@ &timer {
  
  &uart3 {
  	status = "okay";
-	clocks = <&uart3_clk>;
  };

diff --git a/arch/arm/boot/dts/owl-s500.dtsi b/arch/arm/boot/dts/owl-s500.dtsi
index 5d5ad9db549b..ac3d04c75dd5 100644
--- a/arch/arm/boot/dts/owl-s500.dtsi
+++ b/arch/arm/boot/dts/owl-s500.dtsi

@@ -131,6 +131,7 @@ uart0: serial@b0120000 {
  			compatible = "actions,s500-uart", "actions,owl-uart";
  			reg = <0xb0120000 0x2000>;
  			interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cmu CLK_UART0>;
  			status = "disabled";
  		};
  

@@ -138,6 +139,7 @@ uart1: serial@b0122000 {
  			compatible = "actions,s500-uart", "actions,owl-uart";
  			reg = <0xb0122000 0x2000>;
  			interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cmu CLK_UART1>;
  			status = "disabled";
  		};
  

@@ -145,6 +147,7 @@ uart2: serial@b0124000 {
  			compatible = "actions,s500-uart", "actions,owl-uart";
  			reg = <0xb0124000 0x2000>;
  			interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cmu CLK_UART2>;
  			status = "disabled";
  		};
  

@@ -152,6 +155,7 @@ uart3: serial@b0126000 {
  			compatible = "actions,s500-uart", "actions,owl-uart";
  			reg = <0xb0126000 0x2000>;
  			interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cmu CLK_UART3>;
  			status = "disabled";
  		};
  

@@ -159,6 +163,7 @@ uart4: serial@b0128000 {
  			compatible = "actions,s500-uart", "actions,owl-uart";
  			reg = <0xb0128000 0x2000>;
  			interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cmu CLK_UART4>;
  			status = "disabled";
  		};
  

@@ -166,6 +171,7 @@ uart5: serial@b012a000 {
  			compatible = "actions,s500-uart", "actions,owl-uart";
  			reg = <0xb012a000 0x2000>;
  			interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cmu CLK_UART5>;
  			status = "disabled";
  		};
  

@@ -173,6 +179,7 @@ uart6: serial@b012c000 {
  			compatible = "actions,s500-uart", "actions,owl-uart";
  			reg = <0xb012c000 0x2000>;
  			interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cmu CLK_UART6>;
  			status = "disabled";
  		};