Arm: dts: stm32: remove extra compatible string from DT & driver

This patch remove the extra compatibility string "st,stm32-usart" from
driver & device tree.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

arch/arm/boot/dts/stm32f429.dtsi

@@ -315,7 +315,7 @@ iwdg: watchdog@40003000 {
 		};
 
 		usart2: serial@40004400 {
-			compatible = "st,stm32-usart", "st,stm32-uart";
+			compatible = "st,stm32-uart";
 			reg = <0x40004400 0x400>;
 			interrupts = <38>;
 			clocks = <&rcc 0 STM32F4_APB1_CLOCK(UART2)>;
@@ -323,7 +323,7 @@ usart2: serial@40004400 {
 		};
 
 		usart3: serial@40004800 {
-			compatible = "st,stm32-usart", "st,stm32-uart";
+			compatible = "st,stm32-uart";
 			reg = <0x40004800 0x400>;
 			interrupts = <39>;
 			clocks = <&rcc 0 STM32F4_APB1_CLOCK(UART3)>;
@@ -387,7 +387,7 @@ dac2: dac@2 {
 		};
 
 		usart7: serial@40007800 {
-			compatible = "st,stm32-usart", "st,stm32-uart";
+			compatible = "st,stm32-uart";
 			reg = <0x40007800 0x400>;
 			interrupts = <82>;
 			clocks = <&rcc 0 STM32F4_APB1_CLOCK(UART7)>;
@@ -395,7 +395,7 @@ usart7: serial@40007800 {
 		};
 
 		usart8: serial@40007c00 {
-			compatible = "st,stm32-usart", "st,stm32-uart";
+			compatible = "st,stm32-uart";
 			reg = <0x40007c00 0x400>;
 			interrupts = <83>;
 			clocks = <&rcc 0 STM32F4_APB1_CLOCK(UART8)>;
@@ -445,7 +445,7 @@ timer@7 {
 		};
 
 		usart1: serial@40011000 {
-			compatible = "st,stm32-usart", "st,stm32-uart";
+			compatible = "st,stm32-uart";
 			reg = <0x40011000 0x400>;
 			interrupts = <37>;
 			clocks = <&rcc 0 STM32F4_APB2_CLOCK(USART1)>;
@@ -456,7 +456,7 @@ usart1: serial@40011000 {
 		};
 
 		usart6: serial@40011400 {
-			compatible = "st,stm32-usart", "st,stm32-uart";
+			compatible = "st,stm32-uart";
 			reg = <0x40011400 0x400>;
 			interrupts = <71>;
 			clocks = <&rcc 0 STM32F4_APB2_CLOCK(USART6)>;

arch/arm/boot/dts/stm32f746.dtsi

@@ -136,7 +136,7 @@ rtc: rtc@40002800 {
 		};
 
 		usart2: serial@40004400 {
-			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			compatible = "st,stm32f7-uart";
 			reg = <0x40004400 0x400>;
 			interrupts = <38>;
 			clocks = <&rcc 1 CLK_USART2>;
@@ -144,7 +144,7 @@ usart2: serial@40004400 {
 		};
 
 		usart3: serial@40004800 {
-			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			compatible = "st,stm32f7-uart";
 			reg = <0x40004800 0x400>;
 			interrupts = <39>;
 			clocks = <&rcc 1 CLK_USART3>;
@@ -177,7 +177,7 @@ cec: cec@40006c00 {
 		};
 
 		usart7: serial@40007800 {
-			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			compatible = "st,stm32f7-uart";
 			reg = <0x40007800 0x400>;
 			interrupts = <82>;
 			clocks = <&rcc 1 CLK_UART7>;
@@ -185,7 +185,7 @@ usart7: serial@40007800 {
 		};
 
 		usart8: serial@40007c00 {
-			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			compatible = "st,stm32f7-uart";
 			reg = <0x40007c00 0x400>;
 			interrupts = <83>;
 			clocks = <&rcc 1 CLK_UART8>;
@@ -193,7 +193,7 @@ usart8: serial@40007c00 {
 		};
 
 		usart1: serial@40011000 {
-			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			compatible = "st,stm32f7-uart";
 			reg = <0x40011000 0x400>;
 			interrupts = <37>;
 			clocks = <&rcc 1 CLK_USART1>;
@@ -201,7 +201,7 @@ usart1: serial@40011000 {
 		};
 
 		usart6: serial@40011400 {
-			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			compatible = "st,stm32f7-uart";
 			reg = <0x40011400 0x400>;
 			interrupts = <71>;
 			clocks = <&rcc 1 CLK_USART6>;

arch/arm/boot/dts/stm32h743.dtsi

@@ -67,7 +67,7 @@ timer5: timer@40000c00 {
 		};
 
 		usart2: serial@40004400 {
-			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			compatible = "st,stm32f7-uart";
 			reg = <0x40004400 0x400>;
 			interrupts = <38>;
 			status = "disabled";
@@ -99,7 +99,7 @@ dac2: dac@2 {
 		};
 
 		usart1: serial@40011000 {
-			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			compatible = "st,stm32f7-uart";
 			reg = <0x40011000 0x400>;
 			interrupts = <37>;
 			status = "disabled";

drivers/tty/serial/stm32-usart.c

@@ -736,11 +736,8 @@ static struct stm32_port *stm32_of_get_stm32_port(struct platform_device *pdev)
 
 #ifdef CONFIG_OF
 static const struct of_device_id stm32_match[] = {
-	{ .compatible = "st,stm32-usart", .data = &stm32f4_info},
 	{ .compatible = "st,stm32-uart", .data = &stm32f4_info},
-	{ .compatible = "st,stm32f7-usart", .data = &stm32f7_info},
 	{ .compatible = "st,stm32f7-uart", .data = &stm32f7_info},
-	{ .compatible = "st,stm32h7-usart", .data = &stm32h7_info},
 	{ .compatible = "st,stm32h7-uart", .data = &stm32h7_info},
 	{},
 };