linux-kernel - [PATCH v5 3/3] dt-bindings: input: Update dtbinding for adp5588

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: <20240703-adp5588_gpio_support-v5-3-49fcead0d390@analog.com>
Date: Wed, 03 Jul 2024 11:58:16 +0100
From: Utsav Agarwal via B4 Relay <devnull+utsav.agarwal.analog.com@...nel.org>
To: Utsav Agarwal <utsav.agarwal@...log.com>, 
 Michael Hennerich <michael.hennerich@...log.com>, 
 Dmitry Torokhov <dmitry.torokhov@...il.com>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Nuno Sá <nuno.sa@...log.com>
Cc: linux-input@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Arturs Artamonovs <arturs.artamonovs@...log.com>, 
 Vasileios Bimpikas <vasileios.bimpikas@...log.com>, 
 Oliver Gaskell <oliver.gaskell@...log.com>
Subject: [PATCH v5 3/3] dt-bindings: input: Update dtbinding for adp5588

From: Utsav Agarwal <utsav.agarwal@...log.com>

Updating dt bindings for adp5588. Since the device can now function in a
purely gpio mode, the following keypad specific properties are now made
optional:
	- interrupts
	- keypad,num-rows
	- keypad,num-columns
	- linux,keymap

However since the above properties are required to be specified when
configuring the device as a keypad, dependencies have been added
such that specifying either one would require the remaining as well.

Signed-off-by: Utsav Agarwal <utsav.agarwal@...log.com>
---
 .../devicetree/bindings/input/adi,adp5588.yaml     | 33 ++++++++++++++++++----
 1 file changed, 28 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/adi,adp5588.yaml b/Documentation/devicetree/bindings/input/adi,adp5588.yaml
index 26ea66834ae2..6c06464f822b 100644
--- a/Documentation/devicetree/bindings/input/adi,adp5588.yaml
+++ b/Documentation/devicetree/bindings/input/adi,adp5588.yaml
@@ -49,7 +49,10 @@ properties:
   interrupt-controller:
     description:
       This property applies if either keypad,num-rows lower than 8 or
-      keypad,num-columns lower than 10.
+      keypad,num-columns lower than 10. This property does not apply if
+      keypad,num-rows or keypad,num-columns are not specified since the
+      device then acts as gpio only, during which interrupts are not
+      utilized.
 
   '#interrupt-cells':
     const: 2
@@ -65,13 +68,15 @@ properties:
     minItems: 1
     maxItems: 2
 
+dependencies:
+  keypad,num-rows: ["keypad,num-columns"]
+  keypad,num-cols: ["keypad,num-rows"]
+  linux,keymap: ["keypad,num-rows"]
+  interrupts: ["linux,keymap"]
+
 required:
   - compatible
   - reg
-  - interrupts
-  - keypad,num-rows
-  - keypad,num-columns
-  - linux,keymap
 
 unevaluatedProperties: false
 
@@ -108,4 +113,22 @@ examples:
             >;
         };
     };
+
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/input/input.h>
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+        gpio@34 {
+            compatible = "adi,adp5588";
+            reg = <0x34>;
+
+            #gpio-cells = <2>;
+            gpio-controller;
+            };
+        };
+
 ...

-- 
2.34.1