linux-kernel - [PATCH v3 1/2] dt-bindings: input: atmel,maxtouch: add poweroff-sleep property

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Date: Fri,  9 Feb 2024 09:45:42 +0100
From: Stefan Eichenberger <eichest@...il.com>
To: nick@...anahar.org,
	dmitry.torokhov@...il.com,
	robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org,
	conor+dt@...nel.org,
	nicolas.ferre@...rochip.com,
	alexandre.belloni@...tlin.com,
	claudiu.beznea@...on.dev,
	linus.walleij@...aro.org
Cc: linux-input@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	francesco.dolcini@...adex.com,
	Stefan Eichenberger <stefan.eichenberger@...adex.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v3 1/2] dt-bindings: input: atmel,maxtouch: add poweroff-sleep property

From: Stefan Eichenberger <stefan.eichenberger@...adex.com>

Add a new property to indicate that the device should power off rather
than use deep sleep. Deep sleep is a feature of the controller that
expects the controller to remain powered in suspend. However, if a
display shares its regulator with the touch controller, we may want to
do a power off so that the display and touch controller do not use any
power.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@...adex.com>
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 Documentation/devicetree/bindings/input/atmel,maxtouch.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/atmel,maxtouch.yaml b/Documentation/devicetree/bindings/input/atmel,maxtouch.yaml
index c40799355ed7..8de5f539b30e 100644
--- a/Documentation/devicetree/bindings/input/atmel,maxtouch.yaml
+++ b/Documentation/devicetree/bindings/input/atmel,maxtouch.yaml
@@ -87,6 +87,12 @@ properties:
       - 2 # ATMEL_MXT_WAKEUP_GPIO
     default: 0
 
+  atmel,poweroff-sleep:
+    description: |
+      Instead of using the deep sleep feature of the maXTouch controller,
+      poweroff the regulators.
+    type: boolean
+
   wakeup-source:
     type: boolean
 
-- 
2.40.1