On Thu, Jan 15, 2026 at 05:40:19PM +0900, WooYoung Jeon wrote: > In the fb_ra8875 driver, udelay(100) is used for delay which > causes busy-waiting. Replacing it with usleep_range(100, 120) > allows the CPU to sleep during the delay, improving system > resource efficiency. > > This change was suggested by checkpatch.pl.
Without HW test it's no go. See the previous attempts to "fix" the same place over and over. (https://lore.kernel.org/ is at your service to dive into mail archives) -- With Best Regards, Andy Shevchenko
