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([152.58.130.190]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-35a0250f014sm1065992a91.14.2026.03.11.06.53.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Mar 2026 06:53:05 -0700 (PDT) From: Anas Iqbal To: andy@kernel.org, gregkh@linuxfoundation.org Cc: linux-staging@lists.linux.dev, dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, Anas Iqbal Subject: [PATCH] staging: fbtft: fb_ra8875: replace udelay() with usleep_range() Date: Wed, 11 Mar 2026 13:52:45 +0000 Message-ID: <20260311135245.32730-1-mohd.abd.6602@gmail.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Mailman-Approved-At: Wed, 11 Mar 2026 21:39:34 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Replace udelay() with usleep_range() for 100 microsecond delays as recommended by checkpatch.pl. usleep_range() avoids busy waiting and allows the scheduler to run other tasks. Signed-off-by: Anas Iqbal --- drivers/staging/fbtft/fb_ra8875.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/fbtft/fb_ra8875.c b/drivers/staging/fbtft/fb_ra8875.c index 0ab1de6647d0..d2400bb44f1c 100644 --- a/drivers/staging/fbtft/fb_ra8875.c +++ b/drivers/staging/fbtft/fb_ra8875.c @@ -210,7 +210,7 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...) } len--; - udelay(100); + usleep_range(100, 200); if (len) { buf = (u8 *)par->buf; @@ -231,7 +231,7 @@ 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, 200); } static int write_vmem16_bus8(struct fbtft_par *par, size_t offset, size_t len) -- 2.43.0