linux-kernel - [PATCH v2 1/4] dt-bindings: pwm: allwinner: add h616 pwm compatible

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Message-ID: <20251217082504.80226-2-richard.genoud@bootlin.com>
Date: Wed, 17 Dec 2025 09:25:01 +0100
From: Richard Genoud <richard.genoud@...tlin.com>
To: Uwe Kleine-König <u.kleine-koenig@...libre.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>,
	Philipp Zabel <p.zabel@...gutronix.de>
Cc: Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	linux-pwm@...r.kernel.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>,
	Krzysztof Kozlowski <krzk@...nel.org>
Subject: [PATCH v2 1/4] dt-bindings: pwm: allwinner: add h616 pwm compatible

Allwinner H616 PWM block is quite different from the A10 or H6, but at
the end, it uses the same clocks as the H6; so the sun4i pwm binding can
be used.
It has 6 channels than can generate PWM waveforms or clocks if bypass is
enabled.

Suggested-by: Krzysztof Kozlowski <krzk@...nel.org>
Signed-off-by: Richard Genoud <richard.genoud@...tlin.com>
---
 .../bindings/pwm/allwinner,sun4i-a10-pwm.yaml | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml b/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml
index 1197858e431f..4f58110ec98f 100644
--- a/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml
+++ b/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml
@@ -14,6 +14,9 @@ properties:
   "#pwm-cells":
     const: 3
 
+  "#clock-cells":
+    const: 1
+
   compatible:
     oneOf:
       - const: allwinner,sun4i-a10-pwm
@@ -36,6 +39,7 @@ properties:
           - const: allwinner,sun50i-h5-pwm
           - const: allwinner,sun5i-a13-pwm
       - const: allwinner,sun50i-h6-pwm
+      - const: allwinner,sun50i-h616-pwm
 
   reg:
     maxItems: 1
@@ -62,7 +66,9 @@ allOf:
       properties:
         compatible:
           contains:
-            const: allwinner,sun50i-h6-pwm
+            enum:
+              - allwinner,sun50i-h6-pwm
+              - allwinner,sun50i-h616-pwm
 
     then:
       properties:
@@ -83,6 +89,17 @@ allOf:
         clocks:
           maxItems: 1
 
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              const: allwinner,sun50i-h616-pwm
+
+    then:
+      properties:
+        "#clock-cells": false
+
 required:
   - compatible
   - reg
-- 
2.47.3