linux-kernel - [PATCH v3 14/15] dt-bindings: mtd: sunxi: Add H616 compatible

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Message-ID: <20251020101311.256819-15-richard.genoud@bootlin.com>
Date: Mon, 20 Oct 2025 12:13:10 +0200
From: Richard Genoud <richard.genoud@...tlin.com>
To: Miquel Raynal <miquel.raynal@...tlin.com>,
	Richard Weinberger <richard@....at>,
	Vignesh Raghavendra <vigneshr@...com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen-Yu Tsai <wens@...e.org>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Samuel Holland <samuel@...lland.org>
Cc: Uwe Kleine-König <u.kleine-koenig@...libre.com>,
	Wentao Liang <vulab@...as.ac.cn>,
	Johan Hovold <johan@...nel.org>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	linux-mtd@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-sunxi@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Richard Genoud <richard.genoud@...tlin.com>
Subject: [PATCH v3 14/15] dt-bindings: mtd: sunxi: Add H616 compatible

The H616 NAND controller is quite different from the A10 and A23 ones,
some registers offset changed, and some new one are introduced.
Also, the DMA handling is different (it uses chained descriptors)

So, introduce a new compatible to represent this version of the IP.

Signed-off-by: Richard Genoud <richard.genoud@...tlin.com>
---
 .../mtd/allwinner,sun4i-a10-nand.yaml         | 41 +++++++++++++++++--
 1 file changed, 38 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml b/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml
index 054b6b8bf9b9..9d061e2216cb 100644
--- a/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml
+++ b/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml
@@ -6,9 +6,6 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Allwinner A10 NAND Controller
 
-allOf:
-  - $ref: nand-controller.yaml
-
 maintainers:
   - Chen-Yu Tsai <wens@...e.org>
   - Maxime Ripard <mripard@...nel.org>
@@ -18,6 +15,8 @@ properties:
     enum:
       - allwinner,sun4i-a10-nand
       - allwinner,sun8i-a23-nand-controller
+      - allwinner,sun50i-h616-nand-controller
+
   reg:
     maxItems: 1
 
@@ -25,14 +24,20 @@ properties:
     maxItems: 1
 
   clocks:
+    minItems: 2
     items:
       - description: Bus Clock
       - description: Module Clock
+      - description: ECC Clock
+      - description: MBus Clock
 
   clock-names:
+    minItems: 2
     items:
       - const: ahb
       - const: mod
+      - const: ecc
+      - const: mbus
 
   resets:
     maxItems: 1
@@ -85,6 +90,36 @@ required:
 
 unevaluatedProperties: false
 
+allOf:
+  - $ref: nand-controller.yaml
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - allwinner,sun4i-a10-nand
+              - allwinner,sun8i-a23-nand-controller
+    then:
+      properties:
+        clocks:
+          maxItems: 2
+        clock-names:
+          maxItems: 2
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - allwinner,sun50i-h616-nand-controller
+    then:
+      properties:
+        clocks:
+          minItems: 4
+        clock-names:
+          minItems: 4
+
 examples:
   - |
     #include <dt-bindings/interrupt-controller/arm-gic.h>