ARM: dts: SAMSUNG: Add aliases of UART nodes

This patch adds alias entries for UART nodes of all SoCs using
samsung-uart compatible UART controllers, so that the dependency on
probe order is removed and deterministic device naming is assured.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

9 files changed, 50 insertions, 14 deletions

diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
index 3e678fa335bf..f4b54117d22e 100644
--- a/arch/arm/boot/dts/exynos3250.dtsi
+++ b/arch/arm/boot/dts/exynos3250.dtsi
@@ -39,6 +39,8 @@
 		i2c5 = &i2c_5;
 		i2c6 = &i2c_6;
 		i2c7 = &i2c_7;
+		serial0 = &serial_0;
+		serial1 = &serial_1;
 	};
 
 	cpus {
diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
index fbaf426d2daa..536d3c3553b2 100644
--- a/arch/arm/boot/dts/exynos4.dtsi
+++ b/arch/arm/boot/dts/exynos4.dtsi
@@ -44,6 +44,10 @@
 		fimc1 = &fimc_1;
 		fimc2 = &fimc_2;
 		fimc3 = &fimc_3;
+		serial0 = &serial_0;
+		serial1 = &serial_1;
+		serial2 = &serial_2;
+		serial3 = &serial_3;
 	};
 
 	clock_audss: clock-controller@03810000 {
@@ -363,7 +367,7 @@
 		status = "disabled";
 	};
 
-	serial@13800000 {
+	serial_0: serial@13800000 {
 		compatible = "samsung,exynos4210-uart";
 		reg = <0x13800000 0x100>;
 		interrupts = <0 52 0>;
@@ -372,7 +376,7 @@
 		status = "disabled";
 	};
 
-	serial@13810000 {
+	serial_1: serial@13810000 {
 		compatible = "samsung,exynos4210-uart";
 		reg = <0x13810000 0x100>;
 		interrupts = <0 53 0>;
@@ -381,7 +385,7 @@
 		status = "disabled";
 	};
 
-	serial@13820000 {
+	serial_2: serial@13820000 {
 		compatible = "samsung,exynos4210-uart";
 		reg = <0x13820000 0x100>;
 		interrupts = <0 54 0>;
@@ -390,7 +394,7 @@
 		status = "disabled";
 	};
 
-	serial@13830000 {
+	serial_3: serial@13830000 {
 		compatible = "samsung,exynos4210-uart";
 		reg = <0x13830000 0x100>;
 		interrupts = <0 55 0>;
diff --git a/arch/arm/boot/dts/exynos5.dtsi b/arch/arm/boot/dts/exynos5.dtsi
index 79d0608d6dcc..ff2d2cb0f79e 100644
--- a/arch/arm/boot/dts/exynos5.dtsi
+++ b/arch/arm/boot/dts/exynos5.dtsi
@@ -18,6 +18,13 @@
 / {
 	interrupt-parent = <&gic>;
 
+	aliases {
+		serial0 = &serial_0;
+		serial1 = &serial_1;
+		serial2 = &serial_2;
+		serial3 = &serial_3;
+	};
+
 	chipid@10000000 {
 		compatible = "samsung,exynos4210-chipid";
 		reg = <0x10000000 0x100>;
@@ -50,25 +57,25 @@
 		interrupts = <1 9 0xf04>;
 	};
 
-	serial@12C00000 {
+	serial_0: serial@12C00000 {
 		compatible = "samsung,exynos4210-uart";
 		reg = <0x12C00000 0x100>;
 		interrupts = <0 51 0>;
 	};
 
-	serial@12C10000 {
+	serial_1: serial@12C10000 {
 		compatible = "samsung,exynos4210-uart";
 		reg = <0x12C10000 0x100>;
 		interrupts = <0 52 0>;
 	};
 
-	serial@12C20000 {
+	serial_2: serial@12C20000 {
 		compatible = "samsung,exynos4210-uart";
 		reg = <0x12C20000 0x100>;
 		interrupts = <0 53 0>;
 	};
 
-	serial@12C30000 {
+	serial_3: serial@12C30000 {
 		compatible = "samsung,exynos4210-uart";
 		reg = <0x12C30000 0x100>;
 		interrupts = <0 54 0>;
diff --git a/arch/arm/boot/dts/exynos5260.dtsi b/arch/arm/boot/dts/exynos5260.dtsi
index 5398a60207ca..4539a0ae714d 100644
--- a/arch/arm/boot/dts/exynos5260.dtsi
+++ b/arch/arm/boot/dts/exynos5260.dtsi
@@ -21,6 +21,10 @@
 		pinctrl0 = &pinctrl_0;
 		pinctrl1 = &pinctrl_1;
 		pinctrl2 = &pinctrl_2;
+		serial0 = &uart0;
+		serial1 = &uart1;
+		serial2 = &uart2;
+		serial3 = &uart3;
 	};
 
 	cpus {
diff --git a/arch/arm/boot/dts/exynos5410.dtsi b/arch/arm/boot/dts/exynos5410.dtsi
index 3839c26f467f..52070e54589a 100644
--- a/arch/arm/boot/dts/exynos5410.dtsi
+++ b/arch/arm/boot/dts/exynos5410.dtsi
@@ -20,6 +20,12 @@
 	compatible = "samsung,exynos5410", "samsung,exynos5";
 	interrupt-parent = <&gic>;
 
+	aliases {
+		serial0 = &uart0;
+		serial1 = &uart1;
+		serial2 = &uart2;
+	};
+
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
diff --git a/arch/arm/boot/dts/exynos5440.dtsi b/arch/arm/boot/dts/exynos5440.dtsi
index ae3a17c791f6..8f3373cd7b87 100644
--- a/arch/arm/boot/dts/exynos5440.dtsi
+++ b/arch/arm/boot/dts/exynos5440.dtsi
@@ -18,6 +18,8 @@
 	interrupt-parent = <&gic>;
 
 	aliases {
+		serial0 = &serial_0;
+		serial1 = &serial_1;
 		spi0 = &spi_0;
 		tmuctrl0 = &tmuctrl_0;
 		tmuctrl1 = &tmuctrl_1;
@@ -102,7 +104,7 @@
 		>;
 	};
 
-	serial@B0000 {
+	serial_0: serial@B0000 {
 		compatible = "samsung,exynos4210-uart";
 		reg = <0xB0000 0x1000>;
 		interrupts = <0 2 0>;
@@ -110,7 +112,7 @@
 		clock-names = "uart", "clk_uart_baud0";
 	};
 
-	serial@C0000 {
+	serial_1: serial@C0000 {
 		compatible = "samsung,exynos4210-uart";
 		reg = <0xC0000 0x1000>;
 		interrupts = <0 3 0>;
diff --git a/arch/arm/boot/dts/s3c2416.dtsi b/arch/arm/boot/dts/s3c2416.dtsi
index 955e4a4f8c31..30b8f7e47454 100644
--- a/arch/arm/boot/dts/s3c2416.dtsi
+++ b/arch/arm/boot/dts/s3c2416.dtsi
@@ -16,6 +16,10 @@
 	model = "Samsung S3C2416 SoC";
 	compatible = "samsung,s3c2416";
 
+	aliases {
+		serial3 = &uart3;
+	};
+
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
@@ -68,7 +72,7 @@
 				<&clocks SCLK_UART>;
 	};
 
-	serial@5000C000 {
+	uart3: serial@5000C000 {
 		compatible = "samsung,s3c2440-uart";
 		reg = <0x5000C000 0x4000>;
 		interrupts = <1 18 24 4>, <1 18 25 4>;
diff --git a/arch/arm/boot/dts/s3c24xx.dtsi b/arch/arm/boot/dts/s3c24xx.dtsi
index 2d1d7dc9418a..5ed43b857cc4 100644
--- a/arch/arm/boot/dts/s3c24xx.dtsi
+++ b/arch/arm/boot/dts/s3c24xx.dtsi
@@ -16,6 +16,9 @@
 
 	aliases {
 		pinctrl0 = &pinctrl_0;
+		serial0 = &uart0;
+		serial1 = &uart1;
+		serial2 = &uart2;
 	};
 
 	intc:interrupt-controller@4a000000 {
@@ -46,21 +49,21 @@
 		#pwm-cells = <4>;
 	};
 
-	serial@50000000 {
+	uart0: serial@50000000 {
 		compatible = "samsung,s3c2410-uart";
 		reg = <0x50000000 0x4000>;
 		interrupts = <1 28 0 4>, <1 28 1 4>;
 		status = "disabled";
 	};
 
-	serial@50004000 {
+	uart1: serial@50004000 {
 		compatible = "samsung,s3c2410-uart";
 		reg = <0x50004000 0x4000>;
 		interrupts = <1 23 3 4>, <1 23 4 4>;
 		status = "disabled";
 	};
 
-	serial@50008000 {
+	uart2: serial@50008000 {
 		compatible = "samsung,s3c2410-uart";
 		reg = <0x50008000 0x4000>;
 		interrupts = <1 15 6 4>, <1 15 7 4>;
diff --git a/arch/arm/boot/dts/s3c64xx.dtsi b/arch/arm/boot/dts/s3c64xx.dtsi
index 4e3be4d3493d..ff5bdaac987a 100644
--- a/arch/arm/boot/dts/s3c64xx.dtsi
+++ b/arch/arm/boot/dts/s3c64xx.dtsi
@@ -23,6 +23,10 @@
 	aliases {
 		i2c0 = &i2c0;
 		pinctrl0 = &pinctrl0;
+		serial0 = &uart0;
+		serial1 = &uart1;
+		serial2 = &uart2;
+		serial3 = &uart3;
 	};
 
 	cpus {