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samples: lvgl: write initial content before blanking_off

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Write initial content of the display before blanking_off.
This allow faster update of the electronic ink displays as
the controller do not update the pannel when the banking
is enabled (currently this behaviour is only implemented
in gd7965 driver).

Signed-off-by: Johann Fischer <j.fischer@phytec.de>
This commit is contained in:
Johann Fischer 2020-01-18 15:04:43 +01:00 • committed by Anas Nashif
commit cf6fd8482b
1 changed files with 1 additions and 0 deletions
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samples/display/lvgl/src/main.c
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@ -37,6 +37,7 @@ void main(void)
count_label = lv_label_create(lv_scr_act(), NULL);
lv_obj_align(count_label, NULL, LV_ALIGN_IN_BOTTOM_MID, 0, 0);
lv_task_handler();
display_blanking_off(display_dev);
while (1) {