linux-kernel - [PATCH v4 1/3] dt-bindings: mfd: twl: enable power button also for twl603x

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20251106-twl6030-button-v4-1-fdf1aa6e1e9a@kernel.org>
Date: Thu, 06 Nov 2025 10:00:25 +0100
From: akemnade@...nel.org
To: Lee Jones <lee@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Andreas Kemnade <andreas@...nade.info>, 
 Dmitry Torokhov <dmitry.torokhov@...il.com>, 
 Tony Lindgren <tony@...mide.com>, Kevin Hilman <khilman@...nel.org>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-input@...r.kernel.org, linux-omap@...r.kernel.org, 
 Andreas Kemnade <akemnade@...nel.org>
Subject: [PATCH v4 1/3] dt-bindings: mfd: twl: enable power button also for
 twl603x

From: Andreas Kemnade <andreas@...nade.info>

TWL603x has also a power button function, so add the corresponding subnode.
As not in all cases there is a power button connected to the corresponding
pad of the TWL603x, the functionality can be disabled by
status = "disabled" or simply not adding the subnode.
To keep things simple, follow the established design pattern of using const
interrupts as used also by the other subdevices.

Signed-off-by: Andreas Kemnade <andreas@...nade.info>
---
 Documentation/devicetree/bindings/mfd/ti,twl.yaml | 40 +++++++++++++++++++----
 1 file changed, 34 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/mfd/ti,twl.yaml b/Documentation/devicetree/bindings/mfd/ti,twl.yaml
index 776b04e182cb..045fd07f476e 100644
--- a/Documentation/devicetree/bindings/mfd/ti,twl.yaml
+++ b/Documentation/devicetree/bindings/mfd/ti,twl.yaml
@@ -55,6 +55,15 @@ allOf:
 
         gpadc: false
 
+        pwrbutton:
+          properties:
+            compatible:
+              const: ti,twl4030-pwrbutton
+            interrupts:
+              items:
+                - items:
+                    const: 8
+
         usb-comparator: false
 
   - if:
@@ -95,7 +104,14 @@ allOf:
             compatible:
               const: ti,twl6030-gpadc
 
-        pwrbutton: false
+        pwrbutton:
+          properties:
+            compatible:
+              const: ti,twl6030-pwrbutton
+            interrupts:
+              items:
+                - items:
+                    const: 0
 
         madc: false
 
@@ -146,7 +162,14 @@ allOf:
             compatible:
               const: ti,twl6032-gpadc
 
-        pwrbutton: false
+        pwrbutton:
+          properties:
+            compatible:
+              const: ti,twl6030-pwrbutton
+            interrupts:
+              items:
+                - items:
+                    const: 0
 
         madc: false
 
@@ -226,11 +249,11 @@ properties:
 
     properties:
       compatible:
-        const: ti,twl4030-pwrbutton
+        enum:
+          - ti,twl4030-pwrbutton
+          - ti,twl6030-pwrbutton
       interrupts:
-        items:
-          - items:
-              const: 8
+        maxItems: 1
 
   watchdog:
     type: object
@@ -459,6 +482,11 @@ examples:
           #io-channel-cells = <1>;
         };
 
+        pwrbutton {
+          compatible = "ti,twl6030-pwrbutton";
+          interrupts = <0>;
+        };
+
         rtc {
           compatible = "ti,twl4030-rtc";
           interrupts = <8>;

-- 
2.47.3