diff --git a/Documentation/devicetree/bindings/serial/8250_omap.yaml b/Documentation/devicetree/bindings/serial/8250_omap.yaml
index 7db8e5477b03..eb3488d8f9ee 100644
--- a/Documentation/devicetree/bindings/serial/8250_omap.yaml
+++ b/Documentation/devicetree/bindings/serial/8250_omap.yaml
@@ -104,12 +104,12 @@ else:
 
 examples:
   - |
-          serial@49042000 {
-            compatible = "ti,omap3-uart";
-            reg = <0x49042000 0x400>;
-            interrupts = <80>;
-            dmas = <&sdma 81 &sdma 82>;
-            dma-names = "tx", "rx";
-            ti,hwmods = "uart4";
-            clock-frequency = <48000000>;
-          };
+    serial@49042000 {
+        compatible = "ti,omap3-uart";
+        reg = <0x49042000 0x400>;
+        interrupts = <80>;
+        dmas = <&sdma 81 &sdma 82>;
+        dma-names = "tx", "rx";
+        ti,hwmods = "uart4";
+        clock-frequency = <48000000>;
+    };
diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
index 7abf113c966c..53d52806027d 100644
--- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
@@ -77,9 +77,9 @@ unevaluatedProperties: false
 examples:
   - |
     serial@84c0 {
-          compatible = "amlogic,meson-gx-uart";
-          reg = <0x84c0 0x14>;
-          interrupts = <26>;
-          clocks = <&xtal>, <&pclk>, <&xtal>;
-          clock-names = "xtal", "pclk", "baud";
+        compatible = "amlogic,meson-gx-uart";
+        reg = <0x84c0 0x14>;
+        interrupts = <26>;
+        clocks = <&xtal>, <&pclk>, <&xtal>;
+        clock-names = "xtal", "pclk", "baud";
     };
diff --git a/Documentation/devicetree/bindings/serial/cdns,uart.yaml b/Documentation/devicetree/bindings/serial/cdns,uart.yaml
index 38925b79cb38..8bc177a6b6f8 100644
--- a/Documentation/devicetree/bindings/serial/cdns,uart.yaml
+++ b/Documentation/devicetree/bindings/serial/cdns,uart.yaml
@@ -72,6 +72,6 @@ examples:
       compatible = "xlnx,xuartps", "cdns,uart-r1p8";
       clocks = <&clkc 23>, <&clkc 40>;
       clock-names = "uart_clk", "pclk";
-      reg = <0xE0000000 0x1000>;
+      reg = <0xe0000000 0x1000>;
       interrupts = <0 27 4>;
     };
diff --git a/Documentation/devicetree/bindings/serial/renesas,em-uart.yaml b/Documentation/devicetree/bindings/serial/renesas,em-uart.yaml
index b25aca733b72..12d0fa34f9f9 100644
--- a/Documentation/devicetree/bindings/serial/renesas,em-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,em-uart.yaml
@@ -66,9 +66,9 @@ examples:
   - |
     #include <dt-bindings/interrupt-controller/arm-gic.h>
     uart0: serial@e1020000 {
-            compatible = "renesas,em-uart";
-            reg = <0xe1020000 0x38>;
-            interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
-            clocks = <&usia_u0_sclk>;
-            clock-names = "sclk";
+        compatible = "renesas,em-uart";
+        reg = <0xe1020000 0x38>;
+        interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&usia_u0_sclk>;
+        clock-names = "sclk";
     };
diff --git a/Documentation/devicetree/bindings/serial/renesas,hscif.yaml b/Documentation/devicetree/bindings/serial/renesas,hscif.yaml
index 1957b9d782e8..afedb6edfc34 100644
--- a/Documentation/devicetree/bindings/serial/renesas,hscif.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,hscif.yaml
@@ -131,20 +131,20 @@ examples:
     #include <dt-bindings/interrupt-controller/arm-gic.h>
     #include <dt-bindings/power/r8a7795-sysc.h>
     aliases {
-            serial1 = &hscif1;
+        serial1 = &hscif1;
     };
 
     hscif1: serial@e6550000 {
-            compatible = "renesas,hscif-r8a7795", "renesas,rcar-gen3-hscif",
-                         "renesas,hscif";
-            reg = <0xe6550000 96>;
-            interrupts = <GIC_SPI 155 IRQ_TYPE_LEVEL_HIGH>;
-            clocks = <&cpg CPG_MOD 519>, <&cpg CPG_CORE R8A7795_CLK_S3D1>,
-                     <&scif_clk>;
-            clock-names = "fck", "brg_int", "scif_clk";
-            dmas = <&dmac1 0x33>, <&dmac1 0x32>, <&dmac2 0x33>, <&dmac2 0x32>;
-            dma-names = "tx", "rx", "tx", "rx";
-            power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
-            resets = <&cpg 519>;
-            uart-has-rtscts;
+        compatible = "renesas,hscif-r8a7795", "renesas,rcar-gen3-hscif",
+                     "renesas,hscif";
+        reg = <0xe6550000 96>;
+        interrupts = <GIC_SPI 155 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&cpg CPG_MOD 519>, <&cpg CPG_CORE R8A7795_CLK_S3D1>,
+                 <&scif_clk>;
+        clock-names = "fck", "brg_int", "scif_clk";
+        dmas = <&dmac1 0x33>, <&dmac1 0x32>, <&dmac2 0x33>, <&dmac2 0x32>;
+        dma-names = "tx", "rx", "tx", "rx";
+        power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+        resets = <&cpg 519>;
+        uart-has-rtscts;
     };
diff --git a/Documentation/devicetree/bindings/serial/renesas,sci.yaml b/Documentation/devicetree/bindings/serial/renesas,sci.yaml
index bf7708a7a2c0..dc445b327e0b 100644
--- a/Documentation/devicetree/bindings/serial/renesas,sci.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,sci.yaml
@@ -91,19 +91,19 @@ examples:
     #include <dt-bindings/interrupt-controller/arm-gic.h>
 
     aliases {
-            serial0 = &sci0;
+        serial0 = &sci0;
     };
 
     sci0: serial@1004d000 {
-            compatible = "renesas,r9a07g044-sci", "renesas,sci";
-            reg = <0x1004d000 0x400>;
-            interrupts = <GIC_SPI 405 IRQ_TYPE_LEVEL_HIGH>,
-                         <GIC_SPI 406 IRQ_TYPE_LEVEL_HIGH>,
-                         <GIC_SPI 407 IRQ_TYPE_LEVEL_HIGH>,
-                         <GIC_SPI 408 IRQ_TYPE_LEVEL_HIGH>;
-            interrupt-names = "eri", "rxi", "txi", "tei";
-            clocks = <&cpg CPG_MOD R9A07G044_SCI0_CLKP>;
-            clock-names = "fck";
-            power-domains = <&cpg>;
-            resets = <&cpg R9A07G044_SCI0_RST>;
+        compatible = "renesas,r9a07g044-sci", "renesas,sci";
+        reg = <0x1004d000 0x400>;
+        interrupts = <GIC_SPI 405 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 406 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 407 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 408 IRQ_TYPE_LEVEL_HIGH>;
+        interrupt-names = "eri", "rxi", "txi", "tei";
+        clocks = <&cpg CPG_MOD R9A07G044_SCI0_CLKP>;
+        clock-names = "fck";
+        power-domains = <&cpg>;
+        resets = <&cpg R9A07G044_SCI0_RST>;
     };
diff --git a/Documentation/devicetree/bindings/serial/renesas,scif.yaml b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
index f81f2d67a1ed..1989bd67d04e 100644
--- a/Documentation/devicetree/bindings/serial/renesas,scif.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
@@ -180,19 +180,19 @@ examples:
     #include <dt-bindings/interrupt-controller/arm-gic.h>
     #include <dt-bindings/power/r8a7791-sysc.h>
     aliases {
-            serial0 = &scif0;
+        serial0 = &scif0;
     };
 
     scif0: serial@e6e60000 {
-            compatible = "renesas,scif-r8a7791", "renesas,rcar-gen2-scif",
-                         "renesas,scif";
-            reg = <0xe6e60000 64>;
-            interrupts = <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>;
-            clocks = <&cpg CPG_MOD 721>, <&cpg CPG_CORE R8A7791_CLK_ZS>,
-                     <&scif_clk>;
-            clock-names = "fck", "brg_int", "scif_clk";
-            dmas = <&dmac0 0x29>, <&dmac0 0x2a>, <&dmac1 0x29>, <&dmac1 0x2a>;
-            dma-names = "tx", "rx", "tx", "rx";
-            power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
-            resets = <&cpg 721>;
+        compatible = "renesas,scif-r8a7791", "renesas,rcar-gen2-scif",
+                     "renesas,scif";
+        reg = <0xe6e60000 64>;
+        interrupts = <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&cpg CPG_MOD 721>, <&cpg CPG_CORE R8A7791_CLK_ZS>,
+                 <&scif_clk>;
+        clock-names = "fck", "brg_int", "scif_clk";
+        dmas = <&dmac0 0x29>, <&dmac0 0x2a>, <&dmac1 0x29>, <&dmac1 0x2a>;
+        dma-names = "tx", "rx", "tx", "rx";
+        power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
+        resets = <&cpg 721>;
     };
diff --git a/Documentation/devicetree/bindings/serial/renesas,scifa.yaml b/Documentation/devicetree/bindings/serial/renesas,scifa.yaml
index 3c67d3202e1b..4c3b5e7270da 100644
--- a/Documentation/devicetree/bindings/serial/renesas,scifa.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,scifa.yaml
@@ -95,18 +95,18 @@ examples:
     #include <dt-bindings/interrupt-controller/arm-gic.h>
     #include <dt-bindings/power/r8a7790-sysc.h>
     aliases {
-            serial0 = &scifa0;
+        serial0 = &scifa0;
     };
 
     scifa0: serial@e6c40000 {
-            compatible = "renesas,scifa-r8a7790", "renesas,rcar-gen2-scifa",
-                         "renesas,scifa";
-            reg = <0xe6c40000 64>;
-            interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>;
-            clocks = <&cpg CPG_MOD 204>;
-            clock-names = "fck";
-            power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
-            resets = <&cpg 204>;
-            dmas = <&dmac0 0x21>, <&dmac0 0x22>, <&dmac1 0x21>, <&dmac1 0x22>;
-            dma-names = "tx", "rx", "tx", "rx";
+        compatible = "renesas,scifa-r8a7790", "renesas,rcar-gen2-scifa",
+                     "renesas,scifa";
+        reg = <0xe6c40000 64>;
+        interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&cpg CPG_MOD 204>;
+        clock-names = "fck";
+        power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+        resets = <&cpg 204>;
+        dmas = <&dmac0 0x21>, <&dmac0 0x22>, <&dmac1 0x21>, <&dmac1 0x22>;
+        dma-names = "tx", "rx", "tx", "rx";
     };
diff --git a/Documentation/devicetree/bindings/serial/renesas,scifb.yaml b/Documentation/devicetree/bindings/serial/renesas,scifb.yaml
index d5571c7a4424..2f7cbbb48960 100644
--- a/Documentation/devicetree/bindings/serial/renesas,scifb.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,scifb.yaml
@@ -94,10 +94,10 @@ examples:
     #include <dt-bindings/clock/r8a7740-clock.h>
     #include <dt-bindings/interrupt-controller/arm-gic.h>
     scifb: serial@e6c30000 {
-            compatible = "renesas,scifb-r8a7740", "renesas,scifb";
-            reg = <0xe6c30000 0x100>;
-            interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
-            clocks = <&mstp2_clks R8A7740_CLK_SCIFB>;
-            clock-names = "fck";
-            power-domains = <&pd_a3sp>;
+        compatible = "renesas,scifb-r8a7740", "renesas,scifb";
+        reg = <0xe6c30000 0x100>;
+        interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&mstp2_clks R8A7740_CLK_SCIFB>;
+        clock-names = "fck";
+        power-domains = <&pd_a3sp>;
     };
diff --git a/Documentation/devicetree/bindings/serial/serial.yaml b/Documentation/devicetree/bindings/serial/serial.yaml
index 21992e9a3c2b..c9231e501f1f 100644
--- a/Documentation/devicetree/bindings/serial/serial.yaml
+++ b/Documentation/devicetree/bindings/serial/serial.yaml
@@ -141,13 +141,13 @@ additionalProperties: true
 examples:
   - |
     serial@1234 {
-            compatible = "ns16550a";
-            reg = <0x1234 0x20>;
-            interrupts = <1>;
-
-            bluetooth {
-                    compatible = "brcm,bcm4330-bt";
-                    interrupt-parent = <&gpio>;
-                    interrupts = <10>;
-            };
+        compatible = "ns16550a";
+        reg = <0x1234 0x20>;
+        interrupts = <1>;
+
+        bluetooth {
+            compatible = "brcm,bcm4330-bt";
+            interrupt-parent = <&gpio>;
+            interrupts = <10>;
+        };
     };
diff --git a/Documentation/devicetree/bindings/serial/sifive-serial.yaml b/Documentation/devicetree/bindings/serial/sifive-serial.yaml
index b0a8871e3641..b0df1cac4968 100644
--- a/Documentation/devicetree/bindings/serial/sifive-serial.yaml
+++ b/Documentation/devicetree/bindings/serial/sifive-serial.yaml
@@ -53,13 +53,13 @@ unevaluatedProperties: false
 
 examples:
   - |
-      #include <dt-bindings/clock/sifive-fu540-prci.h>
-      serial@10010000 {
+    #include <dt-bindings/clock/sifive-fu540-prci.h>
+    serial@10010000 {
         compatible = "sifive,fu540-c000-uart", "sifive,uart0";
         interrupt-parent = <&plic0>;
         interrupts = <80>;
         reg = <0x10010000 0x1000>;
         clocks = <&prci FU540_PRCI_CLK_TLCLK>;
-      };
+    };
 
 ...
diff --git a/Documentation/devicetree/bindings/serial/xlnx,opb-uartlite.yaml b/Documentation/devicetree/bindings/serial/xlnx,opb-uartlite.yaml
index 6f65e9a81c29..08dcb275d8e2 100644
--- a/Documentation/devicetree/bindings/serial/xlnx,opb-uartlite.yaml
+++ b/Documentation/devicetree/bindings/serial/xlnx,opb-uartlite.yaml
@@ -76,7 +76,7 @@ unevaluatedProperties: false
 
 examples:
   - |
-      serial@800c0000 {
+    serial@800c0000 {
         compatible = "xlnx,xps-uartlite-1.00.a";
         reg = <0x800c0000 0x10000>;
         interrupts = <0x0 0x6e 0x1>;
@@ -84,5 +84,5 @@ examples:
         current-speed = <115200>;
         xlnx,data-bits = <8>;
         xlnx,use-parity = <0>;
-      };
+    };
 ...
