fix(boards): Properly note ZMK compat for xiao_rp2040/zmk variant (#3326)

Add missing board Kconfig file for properly noting ZMK board compat and
enabling boot mode retention for the `xiao_rp2040//zmk` board variant.

.github/workflows/ble-test.yml

@@ -40,7 +40,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v6
       - name: Cache west modules
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         env:
           cache-name: cache-zephyr-modules
         with:
@@ -72,7 +72,7 @@ jobs:
         run: BSIM_COMPONENTS_PATH="${GITHUB_WORKSPACE}/tools/bsim/components" BSIM_OUT_PATH="${GITHUB_WORKSPACE}/tools/bsim" ./run-ble-test.sh tests/ble/${{ matrix.test }}
       - name: Archive artifacts
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: "${{ matrix.test }}-log-files"
           path: app/build/**/*.log

.github/workflows/build-user-config.yml

@@ -108,7 +108,7 @@ jobs:
           fi
 
       - name: Cache west modules
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         continue-on-error: true
         env:
           cache_name: cache-zephyr-${{ env.zephyr_version }}-modules
@@ -217,7 +217,7 @@ jobs:
           fi
 
       - name: Archive (${{ env.display_name }})
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: artifact-${{ env.artifact_name }}
           path: ${{ env.build_dir }}/artifacts
@@ -229,7 +229,7 @@ jobs:
     name: Merge Output Artifacts
     steps:
       - name: Merge Artifacts
-        uses: actions/upload-artifact/merge@v4
+        uses: actions/upload-artifact/merge@v7
         with:
           name: ${{ inputs.archive_name }}
           pattern: artifact-*

.github/workflows/build.yml

@@ -34,7 +34,7 @@ jobs:
         with:
           persist-credentials: false
       - name: Cache west modules
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         env:
           cache-name: cache-zephyr-modules
         with:

.github/workflows/test.yml

@@ -42,7 +42,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v6
       - name: Cache west modules
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         env:
           cache-name: cache-zephyr-modules
         with:
@@ -69,7 +69,7 @@ jobs:
         run: ZMK_TESTS_VERBOSE=1 west test tests/${{ matrix.test }}
       - name: Archive artifacts
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: "${{ matrix.test }}-log-files"
           path: app/build/**/*.log

app/boards/seeed/xiao_rp2040/Kconfig.xiao_rp2040

@@ -0,0 +1,10 @@
+# Copyright (c) 2026 Pete Johanson
+# SPDX-License-Identifier: MIT
+
+config BOARD_XIAO_RP2040
+    select ZMK_BOARD_COMPAT if BOARD_XIAO_RP2040_RP2040_ZMK
+    imply RETAINED_MEM if BOARD_XIAO_RP2040_RP2040_ZMK
+    imply RETENTION if BOARD_XIAO_RP2040_RP2040_ZMK
+    imply RETENTION_BOOT_MODE if BOARD_XIAO_RP2040_RP2040_ZMK
+
+

app/boards/shields/nice_view/Kconfig.defconfig

@@ -3,6 +3,9 @@
 
 if SHIELD_NICE_VIEW
 
+config LS0XX_VCOM_THREAD_PRIO
+    default 11
+
 config LV_Z_VDB_SIZE
     default 100
 

app/boards/shields/nice_view/nice_view.overlay

@@ -12,6 +12,8 @@
         reg = <0>;
         width = <160>;
         height = <68>;
+        serial-vcom-inversion;
+        serial-vcom-interval = <33>;
     };
 };
 

app/include/dt-bindings/zmk/outputs.h

@@ -7,3 +7,4 @@
 #define OUT_TOG 0
 #define OUT_USB 1
 #define OUT_BLE 2
+#define OUT_NONE 3

app/src/behaviors/behavior_outputs.c

@@ -42,6 +42,11 @@ static const struct behavior_parameter_value_metadata std_values[] = {
         .type = BEHAVIOR_PARAMETER_VALUE_TYPE_VALUE,
     },
 #endif // IS_ENABLED(CONFIG_ZMK_BLE)
+    {
+        .value = OUT_NONE,
+        .display_name = "No Output",
+        .type = BEHAVIOR_PARAMETER_VALUE_TYPE_VALUE,
+    },
 };
 
 static const struct behavior_parameter_metadata_set std_set = {
@@ -65,6 +70,8 @@ static int on_keymap_binding_pressed(struct zmk_behavior_binding *binding,
         return zmk_endpoint_set_preferred_transport(ZMK_TRANSPORT_USB);
     case OUT_BLE:
         return zmk_endpoint_set_preferred_transport(ZMK_TRANSPORT_BLE);
+    case OUT_NONE:
+        return zmk_endpoint_set_preferred_transport(ZMK_TRANSPORT_NONE);
     default:
         LOG_ERR("Unknown output command: %d", binding->param1);
     }

docs/docs/keymaps/behaviors/outputs.md

@@ -29,11 +29,12 @@ header, which is added at the top of the keymap file:
 
 This allows you to reference the actions defined in this header:
 
-| Define    | Action                                          |
-| --------- | ----------------------------------------------- |
-| `OUT_USB` | Prefer sending to USB                           |
-| `OUT_BLE` | Prefer sending to the current bluetooth profile |
-| `OUT_TOG` | Toggle between USB and BLE                      |
+| Define     | Action                                          |
+| ---------- | ----------------------------------------------- |
+| `OUT_USB`  | Prefer sending to USB                           |
+| `OUT_BLE`  | Prefer sending to the current bluetooth profile |
+| `OUT_TOG`  | Toggle between USB and BLE                      |
+| `OUT_NONE` | Prevent from sending any output                 |
 
 ## Output Selection Behavior