feat(nuttx): add lv_nuttx_deinit

src/drivers/nuttx/lv_nuttx_cache.c

@@ -48,6 +48,13 @@ void lv_nuttx_cache_init(void)
     handlers->flush_cache_cb = flush_cache;
 }
 
+void lv_nuttx_cache_deinit(void)
+{
+    lv_draw_buf_handlers_t * handlers = lv_draw_buf_get_handlers();
+    handlers->invalidate_cache_cb = NULL;
+    handlers->flush_cache_cb = NULL;
+}
+
 /**********************
  *   STATIC FUNCTIONS
  **********************/

src/drivers/nuttx/lv_nuttx_cache.h

@@ -28,6 +28,8 @@ extern "C" {
 
 void lv_nuttx_cache_init(void);
 
+void lv_nuttx_cache_deinit(void);
+
 /**********************
  *      MACROS
  **********************/

src/drivers/nuttx/lv_nuttx_entry.c

@@ -177,6 +177,38 @@ uint32_t lv_nuttx_get_idle(void)
 
 #endif
 
+void lv_nuttx_deinit(lv_nuttx_result_t * result)
+{
+#if !LV_USE_NUTTX_CUSTOM_INIT
+    if(result) {
+        if(result->disp) {
+            lv_display_delete(result->disp);
+            result->disp = NULL;
+        }
+
+        if(result->indev) {
+            lv_indev_delete(result->indev);
+            result->indev = NULL;
+        }
+
+        if(result->utouch_indev) {
+            lv_indev_delete(result->utouch_indev);
+            result->utouch_indev = NULL;
+        }
+    }
+#else
+    lv_nuttx_deinit_custom(result);
+#endif
+
+    if(nuttx_ctx_p) {
+        lv_nuttx_cache_deinit();
+        lv_nuttx_image_cache_deinit();
+
+        lv_free(nuttx_ctx_p);
+        nuttx_ctx_p = NULL;
+    }
+}
+
 /**********************
  *   STATIC FUNCTIONS
  **********************/

src/drivers/nuttx/lv_nuttx_entry.h

@@ -64,6 +64,12 @@ void lv_nuttx_dsc_init(lv_nuttx_dsc_t * dsc);
  */
 void lv_nuttx_init(const lv_nuttx_dsc_t * dsc, lv_nuttx_result_t * result);
 
+/**
+ * Deinitialize the LVGL display driver for NuttX.
+ * @param result Pointer to the lv_nuttx_result_t structure containing display and input device handler.
+ */
+void lv_nuttx_deinit(lv_nuttx_result_t * result);
+
 #if LV_USE_NUTTX_CUSTOM_INIT
 /**
  * Initialize the LVGL display driver for NuttX using the provided custom configuration information.
@@ -72,6 +78,11 @@ void lv_nuttx_init(const lv_nuttx_dsc_t * dsc, lv_nuttx_result_t * result);
  */
 void lv_nuttx_init_custom(const lv_nuttx_dsc_t * dsc, lv_nuttx_result_t * result);
 
+/**
+ * Deinitialize the LVGL display driver for NuttX using the provided custom configuration information.
+ * @param result Pointer to the lv_nuttx_result_t structure containing display and input device handler.
+ */
+void lv_nuttx_deinit_custom(lv_nuttx_result_t * result);
 #endif /* LV_USE_NUTTX_CUSTOM_INIT */
 
 /**

src/drivers/nuttx/lv_nuttx_image_cache.c

@@ -66,6 +66,19 @@ void lv_nuttx_image_cache_init(void)
     ctx->initialized = false;
 }
 
+void lv_nuttx_image_cache_deinit(void)
+{
+    if(ctx->initialized == false) goto FREE_CONTEXT;
+
+    mm_uninitialize(ctx->heap);
+    free(ctx->mem);
+
+FREE_CONTEXT:
+    lv_free(ctx);
+
+    ctx = NULL;
+}
+
 /**********************
  *   STATIC FUNCTIONS
  **********************/
@@ -76,7 +89,7 @@ static bool defer_init(void)
         return true;
     }
 
-    if(img_cache_p->max_size == 0) {
+    if(lv_image_cache_is_enabled() == false) {
         LV_LOG_INFO("Image cache is not initialized yet. Skipping deferred initialization. Because max_size is 0.");
         return false;
     }

src/drivers/nuttx/lv_nuttx_image_cache.h

@@ -30,6 +30,8 @@ extern "C" {
 
 void lv_nuttx_image_cache_init(void);
 
+void lv_nuttx_image_cache_deinit(void);
+
 /**********************
  *      MACROS
  **********************/