dt-bindings: display: panel: constrain 'reg' in SPI panels

SPI-attached devices could have more than one chip-select, thus their
bindings are supposed to constrain the 'reg' property to match hardware.
Add missing 'reg' constrain for SPI-attached display panels.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240509-dt-bindings-dsi-panel-reg-v1-2-8b2443705be0@linaro.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

Documentation/devicetree/bindings/display/panel/abt,y030xx067a.yaml

@@ -17,10 +17,12 @@ properties:
   compatible:
     const: abt,y030xx067a
 
+  reg:
+    maxItems: 1
+
   backlight: true
   port: true
   power-supply: true
-  reg: true
   reset-gpios: true
 
 required:

Documentation/devicetree/bindings/display/panel/fascontek,fs035vg158.yaml

@@ -17,6 +17,9 @@ properties:
   compatible:
     const: fascontek,fs035vg158
 
+  reg:
+    maxItems: 1
+
   spi-3wire: true
 
 required:

Documentation/devicetree/bindings/display/panel/ilitek,ili9163.yaml

@@ -24,6 +24,9 @@ properties:
           - newhaven,1.8-128160EF
       - const: ilitek,ili9163
 
+  reg:
+    maxItems: 1
+
   spi-max-frequency:
     maximum: 32000000
 
@@ -32,7 +35,6 @@ properties:
     description: Display data/command selection (D/CX)
 
   backlight: true
-  reg: true
   reset-gpios: true
   rotation: true
 

Documentation/devicetree/bindings/display/panel/ilitek,ili9322.yaml

@@ -26,6 +26,9 @@ properties:
           - dlink,dir-685-panel
       - const: ilitek,ili9322
 
+  reg:
+    maxItems: 1
+
   reset-gpios: true
   port: true
 

Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml

@@ -28,7 +28,8 @@ properties:
           - canaan,kd233-tft
       - const: ilitek,ili9341
 
-  reg: true
+  reg:
+    maxItems: 1
 
   dc-gpios:
     maxItems: 1

Documentation/devicetree/bindings/display/panel/innolux,ej030na.yaml

@@ -17,10 +17,12 @@ properties:
   compatible:
     const: innolux,ej030na
 
+  reg:
+    maxItems: 1
+
   backlight: true
   port: true
   power-supply: true
-  reg: true
   reset-gpios: true
 
 required:

Documentation/devicetree/bindings/display/panel/kingdisplay,kd035g6-54nt.yaml

@@ -17,10 +17,12 @@ properties:
   compatible:
     const: kingdisplay,kd035g6-54nt
 
+  reg:
+    maxItems: 1
+
   backlight: true
   port: true
   power-supply: true
-  reg: true
   reset-gpios: true
 
   spi-3wire: true

Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t.yaml

@@ -18,6 +18,9 @@ properties:
   compatible:
     const: leadtek,ltk035c5444t
 
+  reg:
+    maxItems: 1
+
   spi-3wire: true
 
 required:

Documentation/devicetree/bindings/display/panel/lg,lg4573.yaml

@@ -21,7 +21,8 @@ properties:
   compatible:
     const: lg,lg4573
 
-  reg: true
+  reg:
+    maxItems: 1
 
 required:
   - compatible

Documentation/devicetree/bindings/display/panel/lgphilips,lb035q02.yaml

@@ -17,6 +17,9 @@ properties:
   compatible:
     const: lgphilips,lb035q02
 
+  reg:
+    maxItems: 1
+
   label: true
   enable-gpios: true
   port: true

Documentation/devicetree/bindings/display/panel/nec,nl8048hl11.yaml

@@ -21,9 +21,11 @@ properties:
   compatible:
     const: nec,nl8048hl11
 
+  reg:
+    maxItems: 1
+
   label: true
   port: true
-  reg: true
   reset-gpios: true
 
   spi-max-frequency:

Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml

@@ -71,6 +71,9 @@ properties:
           - shineworld,lh133k
       - const: panel-mipi-dbi-spi
 
+  reg:
+    maxItems: 1
+
   write-only:
     type: boolean
     description:

Documentation/devicetree/bindings/display/panel/samsung,ams495qa01.yaml

@@ -17,7 +17,9 @@ properties:
   compatible:
     const: samsung,ams495qa01
 
-  reg: true
+  reg:
+    maxItems: 1
+
   reset-gpios:
     description: reset gpio, must be GPIO_ACTIVE_LOW
   elvdd-supply:

Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml

@@ -17,9 +17,11 @@ properties:
   compatible:
     const: samsung,ld9040
 
+  reg:
+    maxItems: 1
+
   display-timings: true
   port: true
-  reg: true
   reset-gpios: true
 
   vdd3-supply:

Documentation/devicetree/bindings/display/panel/samsung,lms380kf01.yaml

@@ -21,7 +21,8 @@ properties:
   compatible:
     const: samsung,lms380kf01
 
-  reg: true
+  reg:
+    maxItems: 1
 
   interrupts:
     description: provides an optional ESD (electrostatic discharge)

Documentation/devicetree/bindings/display/panel/samsung,lms397kf04.yaml

@@ -20,7 +20,8 @@ properties:
   compatible:
     const: samsung,lms397kf04
 
-  reg: true
+  reg:
+    maxItems: 1
 
   reset-gpios: true
 

Documentation/devicetree/bindings/display/panel/samsung,s6d27a1.yaml

@@ -20,7 +20,8 @@ properties:
   compatible:
     const: samsung,s6d27a1
 
-  reg: true
+  reg:
+    maxItems: 1
 
   interrupts:
     description: provides an optional ESD (electrostatic discharge)

Documentation/devicetree/bindings/display/panel/samsung,s6e63m0.yaml

@@ -18,7 +18,9 @@ properties:
   compatible:
     const: samsung,s6e63m0
 
-  reg: true
+  reg:
+    maxItems: 1
+
   reset-gpios: true
   port: true
   default-brightness: true

Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml

@@ -21,7 +21,9 @@ properties:
       - jasonic,jt240mhqs-hwt-ek-e3
       - sitronix,st7789v
 
-  reg: true
+  reg:
+    maxItems: 1
+
   reset-gpios: true
   power-supply: true
   backlight: true

Documentation/devicetree/bindings/display/panel/sony,acx565akm.yaml

@@ -17,6 +17,9 @@ properties:
   compatible:
     const: sony,acx565akm
 
+  reg:
+    maxItems: 1
+
   label: true
   reset-gpios: true
   port: true

Documentation/devicetree/bindings/display/panel/tpo,td.yaml

@@ -22,7 +22,9 @@ properties:
         # Toppoly TD043MTEA1 Panel
       - tpo,td043mtea1
 
-  reg: true
+  reg:
+    maxItems: 1
+
   label: true
   reset-gpios: true
   backlight: true

Documentation/devicetree/bindings/display/panel/tpo,tpg110.yaml

@@ -52,7 +52,8 @@ properties:
           - const: tpo,tpg110
       - const: tpo,tpg110
 
-  reg: true
+  reg:
+    maxItems: 1
 
   grestb-gpios:
     maxItems: 1