modules: lvgl: Update OSAL implementation

The LVGL OSAL also tries to set the name of threads. Adjust the function
signature accordingly. Also deal with the fact that the type
`lv_thread_prio_t` is not part of the private api and requires a
LV_USE_PRIVATE_API symbol to be enabled.

Signed-off-by: Fabian Blatz <[email protected]>

Author: faxe1008

modules/lvgl/Kconfig

@@ -22,6 +22,9 @@ config LV_CONF_SKIP
 	bool
 	default n
 
+config LV_USE_PRIVATE_API
+	bool
+
 config LV_USE_LOG
 	bool
 
@@ -158,6 +161,7 @@ config LV_DRAW_DMA2D_HAL_INCLUDE
 config LV_Z_USE_OSAL
 	bool "Use OSAL enabling parallel rendering"
 	depends on DYNAMIC_THREAD
+	select LV_USE_PRIVATE_API
 	help
 	  Use the Zephyr LVGL OSAL to enable parallel rendering
 	  pipelines.

modules/lvgl/lvgl_zephyr_osal.c

@@ -13,8 +13,8 @@ LOG_MODULE_DECLARE(lvgl, CONFIG_LV_Z_LOG_LEVEL);
 typedef void (*lv_thread_entry)(void *);
 static void thread_entry(void *thread, void *cb, void *user_data);
 
-lv_result_t lv_thread_init(lv_thread_t *thread, lv_thread_prio_t prio, void (*callback)(void *),
-			   size_t stack_size, void *user_data)
+lv_result_t lv_thread_init(lv_thread_t *thread, const char *const name, lv_thread_prio_t prio,
+			   void (*callback)(void *), size_t stack_size, void *user_data)
 {
 	int thread_priority;
 
@@ -29,6 +29,8 @@ lv_result_t lv_thread_init(lv_thread_t *thread, lv_thread_prio_t prio, void (*ca
 	thread->tid = k_thread_create(&thread->thread, thread->stack, stack_size, thread_entry,
 				      thread, callback, user_data, thread_priority, 0, K_NO_WAIT);
 
+	k_thread_name_set(thread->tid, name);
+
 	return LV_RESULT_OK;
 }