[PATCH] staging: fbtft: fb_tinylcd: replace udelay() with usleep_range()
From: Anas Iqbal <hidden>
Date: 2026-03-11 14:24:22
Also in:
dri-devel, linux-staging, lkml
Subsystem:
fbtft framebuffer drivers, staging subsystem, the rest · Maintainers:
Andy Shevchenko, Greg Kroah-Hartman, Linus Torvalds
Replace udelay() with usleep_range() for a 250 microsecond delay as recommended by checkpatch.pl. usleep_range() avoids busy waiting and allows the scheduler to schedule other tasks. Signed-off-by: Anas Iqbal <redacted> --- drivers/staging/fbtft/fb_tinylcd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/fbtft/fb_tinylcd.c b/drivers/staging/fbtft/fb_tinylcd.c
index 9469248f2c50..51e6493b050f 100644
--- a/drivers/staging/fbtft/fb_tinylcd.c
+++ b/drivers/staging/fbtft/fb_tinylcd.c@@ -38,10 +38,10 @@ static int init_display(struct fbtft_par *par) write_reg(par, 0xE5, 0x00); write_reg(par, 0xF0, 0x36, 0xA5, 0x53); write_reg(par, 0xE0, 0x00, 0x35, 0x33, 0x00, 0x00, 0x00, - 0x00, 0x35, 0x33, 0x00, 0x00, 0x00); + 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); + usleep_range(250, 500); write_reg(par, MIPI_DCS_SET_DISPLAY_ON); return 0;
--
2.43.0