(fix) lvgl deinit on soft-reset

Include `lv_conf.h` in `mpconfigboard.h` so lvgl deinit is called on
soft-reset, so calling `lvgl.deinit()` is no longer necessary.

This closes #343

Author: Carglglz

gen/gen_mpy.py

@@ -1357,11 +1357,23 @@ def register_int_ptr_type(convertor, *types):
 void mp_lv_deinit_gc()
 {
 
-    // mp_printf(&mp_plat_print, "[ DEINIT GC ]");
-    mp_lv_roots = MP_STATE_VM(mp_lv_roots) = NULL;
-    mp_lv_user_data = MP_STATE_VM(mp_lv_user_data) = NULL;
-    mp_lv_roots_initialized = MP_STATE_VM(mp_lv_roots_initialized) = 0;
-    lvgl_mod_initialized = MP_STATE_VM(lvgl_mod_initialized) = 0;
+
+    if (MP_STATE_VM(lvgl_mod_initialized)) {
+        // mp_printf(&mp_plat_print, "[ DEINIT GC ]");
+        mp_lv_roots = MP_STATE_VM(mp_lv_roots) = NULL;
+        mp_lv_user_data = MP_STATE_VM(mp_lv_user_data) = NULL;
+        mp_lv_roots_initialized = MP_STATE_VM(mp_lv_roots_initialized) = 0;
+        lvgl_mod_initialized = MP_STATE_VM(lvgl_mod_initialized) = 0;
+    }
+
+}
+
+void mp_deinit_lvgl_mod()
+{
+
+    if (MP_STATE_VM(lvgl_mod_initialized)) {
+        mp_lv_deinit_gc();
+    }
 
 }
 

lv_conf.h

@@ -306,6 +306,10 @@ extern void mp_lv_deinit_gc();
 #define LV_GC_INIT() mp_lv_init_gc()
 #define LV_GC_DEINIT() mp_lv_deinit_gc()
 
+// include lv_conf.h in "mpconfigboard.h" for this to take effect.
+extern void mp_deinit_lvgl_mod();
+#define MICROPY_PORT_DEINIT_FUNC mp_deinit_lvgl_mod()
+
 #define LV_ENABLE_GLOBAL_CUSTOM 1
 #if LV_ENABLE_GLOBAL_CUSTOM
     extern void *mp_lv_roots;