dt-bindings: Use 'enum' instead of 'oneOf' plus 'const' entries

'enum' is equivalent to 'oneOf' with a list of 'const' entries, but 'enum'
is more concise and yields better error messages.

Cc: Maxime Ripard <mripard@kernel.org>
Cc: Vignesh R <vigneshr@ti.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: dmaengine@vger.kernel.org
Cc: linux-i2c@vger.kernel.org
Cc: linux-media@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: linux-phy@lists.infradead.org
Cc: linux-serial@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Cc: linux-spi@vger.kernel.org
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> (mipi-ccs)
Acked-by: NMark Brown <broonie@kernel.org>
Reviewed-by: NVinod Koul <vkoul@kernel.org>
Acked-By: NVinod Koul <vkoul@kernel.org>
Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C
Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210824202014.978922-1-robh@kernel.org

Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml

@@ -14,9 +14,9 @@ allOf:
 
 properties:
   compatible:
-    oneOf:
-      - const: qcom,dsi-phy-10nm
-      - const: qcom,dsi-phy-10nm-8998
+    enum:
+      - qcom,dsi-phy-10nm
+      - qcom,dsi-phy-10nm-8998
 
   reg:
     items:

Documentation/devicetree/bindings/display/msm/dsi-phy-14nm.yaml

@@ -14,9 +14,9 @@ allOf:
 
 properties:
   compatible:
-    oneOf:
-      - const: qcom,dsi-phy-14nm
-      - const: qcom,dsi-phy-14nm-660
+    enum:
+      - qcom,dsi-phy-14nm
+      - qcom,dsi-phy-14nm-660
 
   reg:
     items:

Documentation/devicetree/bindings/display/msm/dsi-phy-20nm.yaml

@@ -14,8 +14,7 @@ allOf:
 
 properties:
   compatible:
-    oneOf:
-      - const: qcom,dsi-phy-20nm
+    const: qcom,dsi-phy-20nm
 
   reg:
     items:

Documentation/devicetree/bindings/display/msm/dsi-phy-28nm.yaml

@@ -14,10 +14,10 @@ allOf:
 
 properties:
   compatible:
-    oneOf:
-      - const: qcom,dsi-phy-28nm-hpm
-      - const: qcom,dsi-phy-28nm-lp
-      - const: qcom,dsi-phy-28nm-8960
+    enum:
+      - qcom,dsi-phy-28nm-hpm
+      - qcom,dsi-phy-28nm-lp
+      - qcom,dsi-phy-28nm-8960
 
   reg:
     items:

Documentation/devicetree/bindings/dma/allwinner,sun6i-a31-dma.yaml

@@ -19,12 +19,12 @@ properties:
     description: The cell is the request line number.
 
   compatible:
-    oneOf:
-      - const: allwinner,sun6i-a31-dma
-      - const: allwinner,sun8i-a23-dma
-      - const: allwinner,sun8i-a83t-dma
-      - const: allwinner,sun8i-h3-dma
-      - const: allwinner,sun8i-v3s-dma
+    enum:
+      - allwinner,sun6i-a31-dma
+      - allwinner,sun8i-a23-dma
+      - allwinner,sun8i-a83t-dma
+      - allwinner,sun8i-h3-dma
+      - allwinner,sun8i-v3s-dma
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/firmware/arm,scpi.yaml

@@ -131,9 +131,9 @@ properties:
 
         properties:
           compatible:
-            oneOf:
-              - const: arm,scpi-dvfs-clocks
-              - const: arm,scpi-variable-clocks
+            enum:
+              - arm,scpi-dvfs-clocks
+              - arm,scpi-variable-clocks
 
           '#clock-cells':
             const: 1

Documentation/devicetree/bindings/i2c/ti,omap4-i2c.yaml

@@ -72,11 +72,11 @@ additionalProperties: false
 if:
   properties:
     compatible:
-      oneOf:
-        - const: ti,omap2420-i2c
-        - const: ti,omap2430-i2c
-        - const: ti,omap3-i2c
-        - const: ti,omap4-i2c
+      enum:
+        - ti,omap2420-i2c
+        - ti,omap2430-i2c
+        - ti,omap3-i2c
+        - ti,omap4-i2c
 
 then:
   properties:

Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml

@@ -19,10 +19,10 @@ allOf:
 
 properties:
   compatible:
-    oneOf:
-      - const: loongson,liointc-1.0
-      - const: loongson,liointc-1.0a
-      - const: loongson,liointc-2.0
+    enum:
+      - loongson,liointc-1.0
+      - loongson,liointc-1.0a
+      - loongson,liointc-2.0
 
   reg:
     minItems: 1

Documentation/devicetree/bindings/media/i2c/mipi-ccs.yaml

@@ -83,10 +83,10 @@ properties:
           link-frequencies: true
           data-lanes: true
           bus-type:
-            oneOf:
-              - const: 1 # CSI-2 C-PHY
-              - const: 3 # CCP2
-              - const: 4 # CSI-2 D-PHY
+            enum:
+              - 1 # CSI-2 C-PHY
+              - 3 # CCP2
+              - 4 # CSI-2 D-PHY
 
         required:
           - link-frequencies

Documentation/devicetree/bindings/mfd/ti,lp87565-q1.yaml

@@ -11,9 +11,9 @@ maintainers:
 
 properties:
   compatible:
-    oneOf:
-      - const: ti,lp87565
-      - const: ti,lp87565-q1
+    enum:
+      - ti,lp87565
+      - ti,lp87565-q1
 
   reg:
     description: I2C slave address

Documentation/devicetree/bindings/net/realtek-bluetooth.yaml

@@ -17,10 +17,10 @@ description:
 
 properties:
   compatible:
-    oneOf:
-      - const: "realtek,rtl8723bs-bt"
-      - const: "realtek,rtl8723cs-bt"
-      - const: "realtek,rtl8822cs-bt"
+    enum:
+      - realtek,rtl8723bs-bt
+      - realtek,rtl8723cs-bt
+      - realtek,rtl8822cs-bt
 
   device-wake-gpios:
     maxItems: 1

Documentation/devicetree/bindings/net/ti,k3-am654-cpsw-nuss.yaml

@@ -53,10 +53,10 @@ properties:
   "#size-cells": true
 
   compatible:
-    oneOf:
-      - const: ti,am654-cpsw-nuss
-      - const: ti,j721e-cpsw-nuss
-      - const: ti,am642-cpsw-nuss
+    enum:
+      - ti,am654-cpsw-nuss
+      - ti,j721e-cpsw-nuss
+      - ti,am642-cpsw-nuss
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/net/ti,k3-am654-cpts.yaml

@@ -45,9 +45,9 @@ properties:
     pattern: "^cpts@[0-9a-f]+$"
 
   compatible:
-    oneOf:
-      - const: ti,am65-cpts
-      - const: ti,j721e-cpts
+    enum:
+      - ti,am65-cpts
+      - ti,j721e-cpts
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/pci/loongson.yaml

@@ -17,10 +17,10 @@ allOf:
 
 properties:
   compatible:
-    oneOf:
-      - const: loongson,ls2k-pci
-      - const: loongson,ls7a-pci
-      - const: loongson,rs780e-pci
+    enum:
+      - loongson,ls2k-pci
+      - loongson,ls7a-pci
+      - loongson,rs780e-pci
 
   reg:
     minItems: 1

Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml

@@ -23,9 +23,9 @@ description: |+
 
 properties:
   compatible:
-    oneOf:
-      - const: intel,lgm-emmc-phy
-      - const: intel,keembay-emmc-phy
+    enum:
+      - intel,lgm-emmc-phy
+      - intel,keembay-emmc-phy
 
   "#phy-cells":
     const: 0

Documentation/devicetree/bindings/serial/8250_omap.yaml

@@ -90,10 +90,11 @@ additionalProperties: false
 if:
   properties:
     compatible:
-      oneOf:
-        - const: ti,omap2-uart
-        - const: ti,omap3-uart
-        - const: ti,omap4-uart
+      contains:
+        enum:
+          - ti,omap2-uart
+          - ti,omap3-uart
+          - ti,omap4-uart
 
 then:
   properties:

Documentation/devicetree/bindings/sound/qcom,sm8250.yaml

@@ -15,9 +15,9 @@ description:
 
 properties:
   compatible:
-    oneOf:
-      - const: qcom,sm8250-sndcard
-      - const: qcom,qrb5165-rb5-sndcard
+    enum:
+      - qcom,sm8250-sndcard
+      - qcom,qrb5165-rb5-sndcard
 
   audio-routing:
     $ref: /schemas/types.yaml#/definitions/non-unique-string-array

Documentation/devicetree/bindings/sound/tlv320adcx140.yaml

@@ -24,10 +24,10 @@ description: |
 
 properties:
   compatible:
-    oneOf:
-      - const: ti,tlv320adc3140
-      - const: ti,tlv320adc5140
-      - const: ti,tlv320adc6140
+    enum:
+      - ti,tlv320adc3140
+      - ti,tlv320adc5140
+      - ti,tlv320adc6140
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/spi/realtek,rtl-spi.yaml

@@ -15,12 +15,12 @@ allOf:
 
 properties:
   compatible:
-    oneOf:
-      - const: realtek,rtl8380-spi
-      - const: realtek,rtl8382-spi
-      - const: realtek,rtl8391-spi
-      - const: realtek,rtl8392-spi
-      - const: realtek,rtl8393-spi
+    enum:
+      - realtek,rtl8380-spi
+      - realtek,rtl8382-spi
+      - realtek,rtl8391-spi
+      - realtek,rtl8392-spi
+      - realtek,rtl8393-spi
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/timer/arm,sp804.yaml

@@ -23,9 +23,9 @@ select:
   properties:
     compatible:
       contains:
-        oneOf:
-          - const: arm,sp804
-          - const: hisilicon,sp804
+        enum:
+          - arm,sp804
+          - hisilicon,sp804
   required:
     - compatible