[PATCH] Replace udelay() with usleep_range() in PLL initialization code. According to Documentation/timers/timers-howto.rst, usleep_range() is preferred for delays "10us - 20ms"
From: Alexandru Costin <hidden>
Date: 2025-12-29 01:09:19
Also in:
dri-devel, linux-staging, lkml
Subsystem:
fbtft framebuffer drivers, staging subsystem, the rest · Maintainers:
Andy Shevchenko, Greg Kroah-Hartman, Linus Torvalds
Resolves checkpatch warnings: WARNING: usleep_range is preferred over udelay Signed-off-by: Alexandru Costin <redacted> --- drivers/staging/fbtft/fb_ra8875.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/fbtft/fb_ra8875.c b/drivers/staging/fbtft/fb_ra8875.c
index 0ab1de6647d0..130150b0f07f 100644
--- a/drivers/staging/fbtft/fb_ra8875.c
+++ b/drivers/staging/fbtft/fb_ra8875.c@@ -210,7 +210,8 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...) } len--; - udelay(100); + usleep_range(100, 120); + if (len) { buf = (u8 *)par->buf;
@@ -231,7 +232,7 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...) /* restore user spi-speed */ par->fbtftops.write = fbtft_write_spi; - udelay(100); + usleep_range(100, 120); } static int write_vmem16_bus8(struct fbtft_par *par, size_t offset, size_t len)
--
2.43.0