linux-kernel - [PATCH v4 2/6] dt-bindings: nvmem: rockchip,otp: Add compatible for RK3528

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Message-ID: <20260205211901.490181-3-heiko@sntech.de>
Date: Thu,  5 Feb 2026 22:18:57 +0100
From: Heiko Stuebner <heiko@...ech.de>
To: srini@...nel.org
Cc: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	heiko@...ech.de,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	kever.yang@...k-chips.com,
	finley.xiao@...k-chips.com,
	w@....eu,
	jonas@...boo.se
Subject: [PATCH v4 2/6] dt-bindings: nvmem: rockchip,otp: Add compatible for RK3528

From: Jonas Karlman <jonas@...boo.se>

Add compatible string for the OTP controller in RK3528. Compared to the
RK3562 and RK3568 the OTP in RK3528 does not have a phy clock or reset.

Signed-off-by: Jonas Karlman <jonas@...boo.se>
Signed-off-by: Heiko Stuebner <heiko@...ech.de>
---
 .../bindings/nvmem/rockchip,otp.yaml          | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/Documentation/devicetree/bindings/nvmem/rockchip,otp.yaml b/Documentation/devicetree/bindings/nvmem/rockchip,otp.yaml
index e90136f7dcfb..7e4d5e1c4ced 100644
--- a/Documentation/devicetree/bindings/nvmem/rockchip,otp.yaml
+++ b/Documentation/devicetree/bindings/nvmem/rockchip,otp.yaml
@@ -14,6 +14,7 @@ properties:
     enum:
       - rockchip,px30-otp
       - rockchip,rk3308-otp
+      - rockchip,rk3528-otp
       - rockchip,rk3562-otp
       - rockchip,rk3568-otp
       - rockchip,rk3576-otp
@@ -72,6 +73,30 @@ allOf:
           items:
             - const: phy
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - rockchip,rk3528-otp
+    then:
+      properties:
+        clocks:
+          maxItems: 3
+        clock-names:
+          items:
+            - const: otp
+            - const: apb_pclk
+            - const: sbpi
+        resets:
+          minItems: 3
+          maxItems: 3
+        reset-names:
+          items:
+            - const: otp
+            - const: apb
+            - const: sbpi
+
   - if:
       properties:
         compatible:
-- 
2.47.2