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staging: fbtft: fb_tinylcd: replace udelay() with fsleep()

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fsleep() is the preferred modern API for flexible sleeping as it
automatically selects the best sleep mechanism based on the duration.
Replace udelay() with fsleep() to improve power efficiency.

init_display() is a driver initialization callback which runs in
sleeping context, so fsleep() is safe to use here.

Signed-off-by: Tomasz Unger <tomasz.unger@yahoo.pl>
Acked-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Link: https://patch.msgid.link/20260219142942.74087-1-tomasz.unger@yahoo.pl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomasz Unger
2026-02-23 15:43:56 +01:00
committed by Greg Kroah-Hartman
parent b8077a5bec
commit 6edec96a66
1 changed files with 1 additions and 1 deletions
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drivers/staging/fbtft/fb_tinylcd.c
+1 -1
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@@ -41,7 +41,7 @@ static int init_display(struct fbtft_par *par)
0x00, 0x35, 0x33, 0x00, 0x00, 0x00);
write_reg(par, MIPI_DCS_SET_PIXEL_FORMAT, 0x55);
write_reg(par, MIPI_DCS_EXIT_SLEEP_MODE);
udelay(250);
fsleep(250);
write_reg(par, MIPI_DCS_SET_DISPLAY_ON);
return 0;