linux-kernel - [PATCH v3 5/6] dt-bindings: input: zinitix: Document touch-keys support

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Message-Id: <20220106072840.36851-6-nikita@trvn.ru>
Date:   Thu,  6 Jan 2022 12:28:39 +0500
From:   Nikita Travkin <nikita@...n.ru>
To:     dmitry.torokhov@...il.com
Cc:     robh+dt@...nel.org, Michael.Srba@...nam.cz,
        linus.walleij@...aro.org, broonie@...nel.org, luca@...tu.xyz,
        linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        phone-devel@...r.kernel.org, linux-kernel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht,
        Nikita Travkin <nikita@...n.ru>
Subject: [PATCH v3 5/6] dt-bindings: input: zinitix: Document touch-keys support

In some configurations the touch controller can support the touch-keys.
Document the linux,keycodes property that enables those keys and
specifies the keycodes that should be used to report the key events.

Signed-off-by: Nikita Travkin <nikita@...n.ru>
---
Changes in v2:
 - Include input.yaml schema at the top level instead of at the
   property. (Seems like I still can't think of the schema as device
   and not implementation-specific thing...)
 - Reword the description to be more informative.
---
 .../bindings/input/touchscreen/zinitix,bt400.yaml      | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/zinitix,bt400.yaml b/Documentation/devicetree/bindings/input/touchscreen/zinitix,bt400.yaml
index b4e5ba7c0b49..67ed853289b2 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/zinitix,bt400.yaml
+++ b/Documentation/devicetree/bindings/input/touchscreen/zinitix,bt400.yaml
@@ -16,6 +16,7 @@ maintainers:
 
 allOf:
   - $ref: touchscreen.yaml#
+  - $ref: ../input.yaml#
 
 properties:
   $nodename:
@@ -79,6 +80,15 @@ properties:
     $ref: /schemas/types.yaml#/definitions/uint32
     enum: [1, 2]
 
+  linux,keycodes:
+    description: |
+      This property specifies an array of keycodes assigned to the
+      touch-keys that can be present in some touchscreen configurations.
+      If the touch-keys are enabled, controller firmware will assign some
+      touch sense lines to those keys.
+    minItems: 1
+    maxItems: 8
+
   touchscreen-size-x: true
   touchscreen-size-y: true
   touchscreen-fuzz-x: true
-- 
2.30.2