linux-kernel - [PATCH v7 RESEND 5/7] dt-bindings: hwmon: max31790: Use addressed fan nodes

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Message-ID: <20251001144441.310950-6-eajames@linux.ibm.com>
Date: Wed,  1 Oct 2025 09:44:39 -0500
From: Eddie James <eajames@...ux.ibm.com>
To: linux-hwmon@...r.kernel.org, linux-iio@...r.kernel.org
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-aspeed@...ts.ozlabs.org, robh@...nel.org, krzk+dt@...nel.org,
        conor+dt@...nel.org, andrew@...econstruct.com.au, joel@....id.au,
        linux@...ck-us.net, chanh@...amperecomputing.com, jic23@...nel.org,
        dlechner@...libre.com, nuno.sa@...log.com, andy@...nel.org,
        eajames@...ux.ibm.com
Subject: [PATCH v7 RESEND 5/7] dt-bindings: hwmon: max31790: Use addressed fan nodes

Since fan properties can include reg, the fan controller should be
able to specify address-cells and size-cells properties and use
an addressed fan child node.

Signed-off-by: Eddie James <eajames@...ux.ibm.com>
Reviewed-by: Rob Herring (Arm) <robh@...nel.org>
---
 .../bindings/hwmon/maxim,max31790.yaml           | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/hwmon/maxim,max31790.yaml b/Documentation/devicetree/bindings/hwmon/maxim,max31790.yaml
index b2dc813b1ab44..558cbd251b0fd 100644
--- a/Documentation/devicetree/bindings/hwmon/maxim,max31790.yaml
+++ b/Documentation/devicetree/bindings/hwmon/maxim,max31790.yaml
@@ -35,11 +35,17 @@ properties:
   resets:
     maxItems: 1
 
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
   "#pwm-cells":
     const: 1
 
 patternProperties:
-  "^fan-[0-9]+$":
+  "^fan@[0-9]+$":
     $ref: fan-common.yaml#
     unevaluatedProperties: false
 
@@ -60,13 +66,17 @@ examples:
         reg = <0x20>;
         clocks = <&sys_clk>;
         resets = <&reset 0>;
+        #address-cells = <1>;
         #pwm-cells = <1>;
+        #size-cells = <0>;
 
-        fan-0 {
+        fan@0 {
+          reg = <0x0>;
           pwms = <&pwm_provider 1>;
         };
 
-        fan-1 {
+        fan@1 {
+          reg = <0x1>;
           pwms = <&pwm_provider 2>;
         };
       };
-- 
2.51.0