From: Stefan Eichenberger <stefan.eichenberger@toradex.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@toradex.com>
---
 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

On 22/12/2023 10:52, Stefan Eichenberger wrote:
> From: Stefan Eichenberger <stefan.eichenberger@toradex.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.
> 

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

On Fri, Dec 22, 2023 at 10:53 AM Stefan Eichenberger <eichest@gmail.com> wrote:

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

This LGTM:
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij