From 77aa40213be999d84242ddfe2f160dc11e3ec5cb Mon Sep 17 00:00:00 2001
From: Peter Johanson <peter@peterjohanson.com>
Date: Sat, 16 Sep 2023 11:50:12 -0700
Subject: [PATCH] feat(shields): Add soft-off to the nrf52840dk ZMK Uno

* Use Button 1 for soft off on the nrf52840 when using the ZMK Uno
  shield.
---
 .../boards/nrf52840dk_nrf52840.overlay        | 45 ++++++++++++++++++-
 app/boards/shields/zmk_uno/zmk_uno.overlay    |  3 ++
 2 files changed, 47 insertions(+), 1 deletion(-)

diff --git a/app/boards/shields/zmk_uno/boards/nrf52840dk_nrf52840.overlay b/app/boards/shields/zmk_uno/boards/nrf52840dk_nrf52840.overlay
index 5ac7af7c532..5f3b9683a58 100644
--- a/app/boards/shields/zmk_uno/boards/nrf52840dk_nrf52840.overlay
+++ b/app/boards/shields/zmk_uno/boards/nrf52840dk_nrf52840.overlay
@@ -12,6 +12,15 @@
             bias-pull-up;
         };
     };
+
+    qdec_sleep: qdec_sleep {
+        group1 {
+            psels = <NRF_PSEL(QDEC_A, 1, 11)>,
+                    <NRF_PSEL(QDEC_B, 1, 10)>;
+            bias-pull-up;
+            low-power-enable;
+        };
+    };
 };
 
 // Set up the QDEC hardware based driver and give it the same label as the deleted node.
@@ -20,5 +29,39 @@ encoder: &qdec0 {
     led-pre = <0>;
     steps = <80>;
     pinctrl-0 = <&qdec_default>;
-    pinctrl-names = "default";
+    pinctrl-1 = <&qdec_sleep>;
+    pinctrl-names = "default", "sleep";
 };
+
+/ {
+    behaviors {
+        soft_off: behavior_soft_off {
+            compatible = "zmk,behavior-soft-off";
+            #binding-cells = <0>;
+            label = "SOFT_OFF";
+            status = "okay";
+        };
+    };
+
+    wakeup_source: wakeup_source {
+        compatible = "zmk,wakeup-trigger-key";
+        status = "okay";
+
+        trigger = <&button0>;
+        wakeup-source;
+    };
+
+    soft_off_wakers {
+        compatible = "zmk,soft-off-wakeup-sources";
+        status = "okay";
+
+        wakeup-sources = <&wakeup_source>;
+    };
+
+    soft_off_behavior_key {
+        compatible = "zmk,behavior-key";
+        status = "okay";
+        bindings = <&soft_off>;
+        key = <&button0>;
+    };
+};
\ No newline at end of file
diff --git a/app/boards/shields/zmk_uno/zmk_uno.overlay b/app/boards/shields/zmk_uno/zmk_uno.overlay
index 02bb4ad8e81..38c5827f4f6 100644
--- a/app/boards/shields/zmk_uno/zmk_uno.overlay
+++ b/app/boards/shields/zmk_uno/zmk_uno.overlay
@@ -132,6 +132,7 @@ nice_view_spi: &arduino_spi {
 
     kscan_matrix: kscan_matrix {
         compatible = "zmk,kscan-gpio-matrix";
+        wakeup-source;
 
         diode-direction = "col2row";
 
@@ -149,6 +150,7 @@ nice_view_spi: &arduino_spi {
 
     kscan_direct: kscan_direct {
         compatible = "zmk,kscan-gpio-direct";
+        wakeup-source;
         status = "disabled";
 
         input-gpios
@@ -163,6 +165,7 @@ nice_view_spi: &arduino_spi {
     kscan_sp3t_toggle: kscan_sp3t_toggle {
         compatible = "zmk,kscan-gpio-direct";
         toggle-mode;
+        wakeup-source;
 
         input-gpios
         = <&arduino_header 4 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>