linux-kernel - [PATCH v3] dt-bindings: mtd: drop mtd/cortina,gemini-flash.txt

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Message-Id: <20220211120842.3388592-1-clabbe@baylibre.com>
Date:   Fri, 11 Feb 2022 12:08:42 +0000
From:   Corentin Labbe <clabbe@...libre.com>
To:     krzysztof.kozlowski@...onical.com, linus.walleij@...aro.org,
        miquel.raynal@...tlin.com, richard@....at, robh+dt@...nel.org,
        vigneshr@...com
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org,
        Corentin Labbe <clabbe@...libre.com>
Subject: [PATCH v3] dt-bindings: mtd: drop mtd/cortina,gemini-flash.txt

Drop mtd/cortina,gemini-flash.txt since it is nearly already handled by
Documentation/devicetree/bindings/mtd/mtd-physmap.yaml.

We add jedec-flash to list of compatible because one board (gemini-dlink-dns-313.dts) needs it.
See commit a10d862e585e ("ARM: dts: Fix the DNS-313 flash compatible")
The flash on the DNS-313 needs to be probed as JEDEC, it does not conform to the common CFI standard.

Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
Signed-off-by: Corentin Labbe <clabbe@...libre.com>
---
Change since v1
- fixed typo in syscon

Change since v2
- Added reason of adding jedec-flash

 .../bindings/mtd/cortina,gemini-flash.txt     | 24 -------------------
 .../devicetree/bindings/mtd/mtd-physmap.yaml  | 18 +++++++++++++-
 2 files changed, 17 insertions(+), 25 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/mtd/cortina,gemini-flash.txt

diff --git a/Documentation/devicetree/bindings/mtd/cortina,gemini-flash.txt b/Documentation/devicetree/bindings/mtd/cortina,gemini-flash.txt
deleted file mode 100644
index efa5b2aba829..000000000000
--- a/Documentation/devicetree/bindings/mtd/cortina,gemini-flash.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-Flash device on Cortina Systems Gemini SoC
-
-This flash is regular CFI compatible (Intel or AMD extended) flash chips with
-some special bits that can be controlled by the machine's system controller.
-
-Required properties:
-- compatible : must be "cortina,gemini-flash", "cfi-flash";
-- reg : memory address for the flash chip
-- syscon : must be a phandle to the system controller
-- bank-width : width in bytes of flash interface, should be <2>
-
-For the rest of the properties, see mtd-physmap.yaml.
-
-The device tree may optionally contain sub-nodes describing partitions of the
-address space. See partition.txt for more detail.
-
-Example:
-
-flash@...00000 {
-	compatible = "cortina,gemini-flash", "cfi-flash";
-	reg = <0x30000000 0x01000000>;
-	syscon = <&syscon>;
-	bank-width = <2>;
-};
diff --git a/Documentation/devicetree/bindings/mtd/mtd-physmap.yaml b/Documentation/devicetree/bindings/mtd/mtd-physmap.yaml
index f827984936f6..82eb4e0f453b 100644
--- a/Documentation/devicetree/bindings/mtd/mtd-physmap.yaml
+++ b/Documentation/devicetree/bindings/mtd/mtd-physmap.yaml
@@ -44,7 +44,9 @@ properties:
               - numonyx,js28f128
               - sst,sst39vf320
               - xlnx,xps-mch-emc-2.00.a
-          - const: cfi-flash
+          - enum:
+              - cfi-flash
+              - jedec-flash
       - items:
           - enum:
               - cypress,cy7c1019dv33-10zsxi
@@ -127,6 +129,20 @@ required:
   - compatible
   - reg
 
+if:
+  properties:
+    compatible:
+      contains:
+        const: cortina,gemini-flash
+then:
+  properties:
+    syscon:
+      $ref: /schemas/types.yaml#/definitions/phandle
+      description:
+        Phandle to the syscon controller
+  required:
+    - syscon
+
 # FIXME: A parent bus may define timing properties
 additionalProperties: true
 
-- 
2.34.1