fix some stuff

.github/workflows/build.yml

@@ -3,12 +3,12 @@ name: Build
 on:
   push:
     paths:
-      - '.github/workflows/build.yml'
-      - 'app/**'
+      - ".github/workflows/build.yml"
+      - "app/**"
   pull_request:
     paths:
-      - '.github/workflows/build.yml'
-      - 'app/**'
+      - ".github/workflows/build.yml"
+      - "app/**"
 
 jobs:
   build:
@@ -62,7 +62,7 @@ jobs:
           - tidbit
           - helix_4_left
           - helix_4_right
-        cmake-args: ['']
+        cmake-args: [""]
         include:
           - board: bdn9_rev2
           - board: dz60rgb_rev1
@@ -126,7 +126,7 @@ jobs:
         if: ${{ !matrix.skip-archive }}
         uses: actions/upload-artifact@v2
         with:
-          name: '${{ steps.variables.outputs.artifact-name }}'
+          name: "${{ steps.variables.outputs.artifact-name }}"
           path: |
             build/zephyr/zmk.hex
             build/zephyr/zmk.uf2

app/src/display.c

@@ -1,54 +0,0 @@
-/*
- * Copyright (c) 2020 The ZMK Contributors
- *
- * SPDX-License-Identifier: MIT
- */
-
-#include <init.h>
-#include <device.h>
-#include <devicetree.h>
-
-#include <logging/log.h>
-LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
-
-#include <drivers/display.h>
-#include <lvgl.h>
-
-#define ZMK_DISPLAY_NAME CONFIG_LVGL_DISPLAY_DEV_NAME
-
-static struct device *display;
-
-static lv_obj_t *screen;
-
-int zmk_display_init() {
-    lv_obj_t *hello_world_label;
-    lv_obj_t *count_label;
-
-    LOG_DBG("");
-
-    display = device_get_binding(ZMK_DISPLAY_NAME);
-    if (display == NULL) {
-        LOG_ERR("Failed to find display device");
-        return -EINVAL;
-    }
-
-    screen = lv_obj_create(NULL, NULL);
-    lv_scr_load(screen);
-
-    hello_world_label = lv_label_create(lv_scr_act(), NULL);
-    lv_label_set_text(hello_world_label, "ZMK v0.1.0");
-    lv_obj_align(hello_world_label, NULL, LV_ALIGN_CENTER, 0, 0);
-    count_label = lv_label_create(lv_scr_act(), NULL);
-    lv_label_set_text(count_label, CONFIG_ZMK_KEYBOARD_NAME);
-    lv_obj_align(count_label, NULL, LV_ALIGN_IN_BOTTOM_MID, 0, 0);
-    lv_task_handler();
-    display_blanking_off(display);
-
-    return 0;
-}
-
-void zmk_display_task_handler() {
-    lv_tick_inc(10);
-    lv_task_handler();
-    k_sleep(K_MSEC(10));
-}