[PATCH v2 1/2] dt-bindings: input: touchscreen: Add 'hold-in-reset-in-suspend' property to goodix

[Jan Jasper de Kroon <jajadekroon@gmail.com>]

This patch adds a new optional property, 'hold-in-reset-in-suspend', to the
Goodix touchscreen device tree binding. When set to true, the touchscreen
controller will be held in reset mode during system suspend, reducing
power consumption. If not present, the property defaults to false.

I am submitting this patch to the Device Tree mailing list to add a new
property to the Goodix touchscreen device tree binding. This patch
supplements a related patch sent to the linux-input mailing list, which
updates the Goodix touchscreen driver to use this new property.The
linux-input patch can be found at:
https://lore.kernel.org/all/20230311131534.484700-1-jajadekroon@gmail.com/

Signed-off-by: Jan Jasper de Kroon <jajadekroon@gmail.com>
---
V1 -> V2:
- Updated subject prefix to match subsystem
- Added more detailed description of the change
- Fixed formatting issues in commit message
 .../devicetree/bindings/input/touchscreen/goodix.yaml  | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml b/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
index 3d016b87c8df..cd4dd3d25364 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
+++ b/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
@@ -56,6 +56,15 @@ properties:
   touchscreen-size-y: true
   touchscreen-swapped-x-y: true
 
+  hold-in-reset-in-suspend:
+    type: boolean
+    default: false
+    description: |
+      When set to true, the touchscreen controller will be held in reset mode
+      during system suspend. This can help reduce power consumption, but may
+      cause the touchscreen to take longer to resume when the system is woken
+      up from suspend. Defaults to false if not present.
+
 additionalProperties: false
 
 required:
@@ -75,6 +84,7 @@ examples:
         interrupts = <0 0>;
         irq-gpios = <&gpio1 0 0>;
         reset-gpios = <&gpio1 1 0>;
+        hold-in-reset-in-suspend;
       };
     };
 
-- 
2.34.3