example: update example_lvgl_demo_ui prototype

examples/peripherals/lcd/i80_controller/main/i80_controller_example_main.c

@@ -74,7 +74,7 @@ static const char *TAG = "example";
 // Supported alignment: 16, 32, 64. A higher alignment can enables higher burst transfer size, thus a higher i80 bus throughput.
 #define EXAMPLE_PSRAM_DATA_ALIGNMENT   64
 
-extern void example_lvgl_demo_ui(lv_obj_t *scr);
+extern void example_lvgl_demo_ui(lv_disp_t *disp);
 
 static bool example_notify_lvgl_flush_ready(esp_lcd_panel_io_handle_t panel_io, esp_lcd_panel_io_event_data_t *edata, void *user_ctx)
 {
@@ -268,8 +268,7 @@ void app_main(void)
     ESP_ERROR_CHECK(esp_timer_start_periodic(lvgl_tick_timer, EXAMPLE_LVGL_TICK_PERIOD_MS * 1000));
 
     ESP_LOGI(TAG, "Display LVGL animation");
-    lv_obj_t *scr = lv_disp_get_scr_act(disp);
-    example_lvgl_demo_ui(scr);
+    example_lvgl_demo_ui(disp);
 
     while (1) {
         // raise the task priority of LVGL and/or reduce the handler period can improve the performance

examples/peripherals/lcd/i80_controller/main/lvgl_demo_ui.c

@@ -74,8 +74,10 @@ static void anim_timer_cb(lv_timer_t *timer)
     }
 }
 
-void example_lvgl_demo_ui(lv_obj_t *scr)
+void example_lvgl_demo_ui(lv_disp_t *disp)
 {
+    lv_obj_t *scr = lv_disp_get_scr_act(disp);
+
     // Create image
     img_logo = lv_img_create(scr);
     lv_img_set_src(img_logo, &esp_logo);