[PATCH] dt-bindings: lcdif: Document the dmas/dma-names properties

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From: Fabio Estevam <festevam@xxxxxxx>

i.MX28 has an RX DMA channel associated with the LCDIF controller.

Document the 'dmas' and 'dma-names' properties to fix the following
dt-schema warnings:

lcdif@80030000: 'dma-names', 'dmas' do not match any of the regexes: 'pinctrl-[0-9]+'

Signed-off-by: Fabio Estevam <festevam@xxxxxxx>
---
 .../bindings/display/fsl,lcdif.yaml           | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
index 0681fc49aa1b..dd462abd61f8 100644
--- a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
+++ b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
@@ -50,6 +50,14 @@ properties:
       - const: disp_axi
     minItems: 1
 
+  dmas:
+    items:
+      - description: DMA specifier for the RX DMA channel.
+
+  dma-names:
+    items:
+      - const: rx
+
   interrupts:
     items:
       - description: LCDIF DMA interrupt
@@ -156,6 +164,17 @@ allOf:
         interrupts:
           maxItems: 1
 
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - fsl,imx28-lcdif
+    then:
+      properties:
+        dmas: false
+        dma-names: false
 examples:
   - |
     #include <dt-bindings/clock/imx6sx-clock.h>
-- 
2.34.1




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