Update LVGL module to 9.2.0

[faxe1008]

Update the lvgl module to version 9.0.0. Commits still need to be cleaned, opening this for others to also test.

Things left to do:

• Investigate the failing tests
• Fix LV_Z_FLUSH_THREAD
• Check samples on displays of every color format
• Color on RGB888 display
• Solution for monochrome pixel format
• Add the OSAL layer`
• Figure out what to do about DMA2D
• Add the new demos

[zephyrbot]

The following west manifest projects have changed revision in this Pull Request:

Name	Old Revision	New Revision	Diff
lvgl	zephyrproject-rtos/lvgl@2b498e6	zephyrproject-rtos/lvgl#54	zephyrproject-rtos/lvgl#54/files

⛔ DNM label due to: 1 project with PR revision

Note: This message is automatically posted and updated by the Manifest GitHub Action.

[faxe1008]

I updated the module branch and this PR for the release v9.1.0, which was ~1 week ago. However I am still facing an issue with the build system, lvgl samples show this error in CI (and also locally):

CMake Error at /__w/zephyr/zephyr/cmake/modules/arch_v2.cmake:36 (message):
  ARCH not defined.  Check that BOARD=wio_terminal, is selecting an
  appropriate SoC in Kconfig, SoC=samd51p19a, and that the SoC is selecting
  the correct architecture.

Any help as to why this update messes with the ARCH Kconfig symbol would be very much appreciated :^).

[faxe1008]

Located the issue this was happening because of this Kconfig in upstream lvgl:

		config LV_TXT_BREAK_CHARS
			string "Can break (wrap) texts on these chars"
			default " ,.;:-_)]}"

[Finomnis]

#81184 got merged, I think that one collides with this PR

[Finomnis]

@faxe1008 Updated samples/modules/lvgl/screen_transparency/src/main.c:

diff --git a/samples/modules/lvgl/screen_transparency/src/main.c b/samples/modules/lvgl/screen_transparency/src/main.c
index 64494ffdaed..b0e6164fc8b 100644
--- a/samples/modules/lvgl/screen_transparency/src/main.c
+++ b/samples/modules/lvgl/screen_transparency/src/main.c
@@ -21,14 +21,13 @@ static void initialize_gui(void)
        lv_obj_t *label;
 
        /* Configure screen and background for transparency */
-       lv_obj_set_style_bg_opa(lv_scr_act(), LV_OPA_TRANSP, LV_PART_MAIN);
-       lv_disp_set_bg_opa(NULL, LV_OPA_TRANSP);
-       lv_obj_set_style_bg_color(lv_scr_act(), lv_color_hex(0x000000), LV_PART_MAIN);
+       lv_obj_set_style_bg_opa(lv_screen_active(), LV_OPA_TRANSP, LV_PART_MAIN);
+       lv_obj_set_style_bg_opa(lv_layer_bottom(), LV_OPA_TRANSP, LV_PART_MAIN);
 
        /* Create a label, set its text and align it to the center */
-       label = lv_label_create(lv_scr_act());
+       label = lv_label_create(lv_screen_active());
        lv_label_set_text(label, "Hello, world!");
-       lv_obj_set_style_text_color(lv_scr_act(), lv_color_hex(0xff00ff), LV_PART_MAIN);
+       lv_obj_set_style_text_color(lv_screen_active(), lv_color_hex(0xff00ff), LV_PART_MAIN);
        lv_obj_align(label, LV_ALIGN_CENTER, 0, 0);
 }
 
@@ -60,11 +59,11 @@ int main(void)
 
        initialize_gui();
 
-       lv_task_handler();
+       lv_timer_handler();
        display_blanking_off(display_dev);
 
        while (1) {
-               uint32_t sleep_ms = lv_task_handler();
+               uint32_t sleep_ms = lv_timer_handler();
 
                k_msleep(MIN(sleep_ms, INT32_MAX));
        }

Together with removing CONFIG_LV_COLOR_SCREEN_TRANSP=y (which you already did, I saw), this should update the screen_transparency sample.

Reference: https://docs.lvgl.io/master/details/base-widget/obj.html#transparent-screens

[faxe1008]

@Finomnis updated the PR, thanks for catching it :^)

[Finomnis]

Except of #81263, is this change feature complete? No other open known issues?

[faxe1008]

@Finomnis yes, everything else should be done. Some more tests for monochrome displays with real hardware would be good though.