Update LVGL to v9.1.0

1 files changed, 0 insertions, 38 deletions

diff --git a/lib/lvgl/docs/porting/timer-handler.md b/lib/lvgl/docs/porting/timer-handler.md
deleted file mode 100644
index 2f086b59..00000000
--- a/lib/lvgl/docs/porting/timer-handler.md
+++ /dev/null
@@ -1,38 +0,0 @@
-# Timer Handler
-
-To handle the tasks of LVGL you need to call `lv_timer_handler()` periodically in one of the following:
-- *while(1)* of *main()* function
-- timer interrupt periodically (lower priority than `lv_tick_inc()`)
-- an OS task periodically
-
-The timing is not critical but it should be about 5 milliseconds to keep the system responsive.
-
-Example:
-```c
-while(1) {
-  lv_timer_handler();
-  my_delay_ms(5);
-}
-```
-
-If you want to use `lv_timer_handler()` in a super-loop, a helper function`lv_timer_handler_run_in_period()` is provided to simplify the porting:
-
-```c
-while(1) {
-    ...
-    lv_timer_handler_run_in_period(5); /* run lv_timer_handler() every 5ms */
-    ...
-}
-```
-
- In an OS environment, you can use it together with the **delay** or **sleep** provided by OS to release CPU whenever possible:
-
-```c
-while (1) {
-    lv_timer_handler_run_in_period(5); /* run lv_timer_handler() every 5ms */
-    my_delay_ms(5);                    /* delay 5ms to avoid unnecessary polling */
-}
-```
-
-To learn more about timers visit the [Timer](/overview/timer) section.
-