linux-kernel - [PATCH v2 1/4] dt-bindings: memory-controllers: ti,gpmc: Add compatible for AM64

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Message-Id: <20211208124611.16843-1-rogerq@kernel.org>
Date:   Wed,  8 Dec 2021 14:46:08 +0200
From:   Roger Quadros <rogerq@...nel.org>
To:     krzysztof.kozlowski@...onical.com, tony@...mide.com
Cc:     kishon@...com, nm@...com, vigneshr@...com,
        linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Roger Quadros <rogerq@...nel.org>,
        Rob Herring <robh+dt@...nel.org>
Subject: [PATCH v2 1/4] dt-bindings: memory-controllers: ti,gpmc: Add compatible for AM64

AM64 SoC contains the GPMC module. Add compatible for it.

Newer SoCs don't necessarily map GPMC data region at the same place
as legacy SoCs. Add reg-names "data", to provide this information to
the device driver.

Cc: Rob Herring <robh+dt@...nel.org>
Signed-off-by: Roger Quadros <rogerq@...nel.org>
---
 .../bindings/memory-controllers/ti,gpmc.yaml  | 23 ++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml b/Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml
index 25b42d68f9b3..64dc9d398d9a 100644
--- a/Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml
@@ -23,13 +23,20 @@ properties:
     items:
       - enum:
           - ti,am3352-gpmc
+          - ti,am64-gpmc
           - ti,omap2420-gpmc
           - ti,omap2430-gpmc
           - ti,omap3430-gpmc
           - ti,omap4430-gpmc
 
   reg:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
+
+  reg-names:
+    items:
+      - const: cfg
+      - const: data
 
   interrupts:
     maxItems: 1
@@ -44,6 +51,9 @@ properties:
     items:
       - const: fck
 
+  power-domains:
+    maxItems: 1
+
   dmas:
     items:
       - description: DMA channel for GPMC NAND prefetch
@@ -133,6 +143,17 @@ required:
   - "#address-cells"
   - "#size-cells"
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: ti,am64-gpmc
+    then:
+      required:
+        - reg-names
+        - power-domains
+
 additionalProperties: false
 
 examples:
-- 
2.17.1