ci: Update build job to v4.4

.github/workflows/build_examples.yml

@@ -6,12 +6,14 @@ jobs:
   build:
     strategy:
       matrix:
-        idf_ver: ["v4.1", "v4.2", "v4.3"]
-        idf_target: ["esp32"]
-        include:
-          - idf_ver: "v4.2"
+        idf_ver: ["v4.1", "v4.2", "v4.3", "v4.4"]
+        idf_target: ["esp32", "esp32s2", "esp32c3"]
+        exclude:
+          - idf_ver: "v4.1"
             idf_target: esp32s2
-          - idf_ver: "v4.3"
+          - idf_ver: "v4.1"
+            idf_target: esp32c3
+          - idf_ver: "v4.2"
             idf_target: esp32c3
     runs-on: ubuntu-20.04
     container: espressif/idf:release-${{ matrix.idf_ver }}

lvgl_helpers.c

@@ -241,6 +241,7 @@ size_t lvgl_get_display_buffer_size(void)
 
 #else /* LVGL v8 */
     /* ToDo: Implement display buffer size calculation with configuration values from the display driver */
+    disp_buffer_size = 320*40; // Reasonable for start
 #endif
 
     return disp_buffer_size;