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Date:   Tue, 7 Aug 2018 21:28:00 -0300
From:   Leonardo =?utf-8?B?QnLDoXM=?= <leobras.c@gmail.com>
To:     Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 01/15] staging: fbtft: Changes udelay(n) to
 usleep_range(n, n + x). - Style
Message-ID: <355a96aa9bf3c29bbafc433a1b6e1662588250d8.1533686201.git.leobras.c@gmail.com>
References: <cover.1533686201.git.leobras.c@gmail.com>
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Changes some udelay(n) for n >= 10 to usleep_range(n, n+x) as recommended by checkpatch.pl.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 drivers/staging/fbtft/fb_agm1264k-fl.c |  2 +-
 drivers/staging/fbtft/fb_ra8875.c      |  4 ++--
 drivers/staging/fbtft/fb_tinylcd.c     |  2 +-
 drivers/staging/fbtft/fb_upd161704.c   | 19 +++++++++----------
 drivers/staging/fbtft/fb_watterott.c   |  4 ++--
 5 files changed, 15 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/fbtft/fb_agm1264k-fl.c b/drivers/staging/fbtft/fb_agm1264k-fl.c
index f6f30f5bf15a..7a24bde7ca8d 100644
--- a/drivers/staging/fbtft/fb_agm1264k-fl.c
+++ b/drivers/staging/fbtft/fb_agm1264k-fl.c
@@ -85,7 +85,7 @@ static void reset(struct fbtft_par *par)
 	dev_dbg(par->info->device, "%s()\n", __func__);
 
 	gpio_set_value(par->gpio.reset, 0);
-	udelay(20);
+	usleep_range(20, 25);
 	gpio_set_value(par->gpio.reset, 1);
 	mdelay(120);
 }
diff --git a/drivers/staging/fbtft/fb_ra8875.c b/drivers/staging/fbtft/fb_ra8875.c
index 5d3b76ca74d8..e2a62677b65b 100644
--- a/drivers/staging/fbtft/fb_ra8875.c
+++ b/drivers/staging/fbtft/fb_ra8875.c
@@ -217,7 +217,7 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 	}
 	len--;
 
-	udelay(100);
+	usleep_range(100, 101);
 
 	if (len) {
 		buf = (u8 *)par->buf;
@@ -238,7 +238,7 @@ 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, 101);
 }
 
 static int write_vmem16_bus8(struct fbtft_par *par, size_t offset, size_t len)
diff --git a/drivers/staging/fbtft/fb_tinylcd.c b/drivers/staging/fbtft/fb_tinylcd.c
index e463b0ddf16d..3b2af1becca8 100644
--- a/drivers/staging/fbtft/fb_tinylcd.c
+++ b/drivers/staging/fbtft/fb_tinylcd.c
@@ -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);
+	usleep_range(250, 251);
 	write_reg(par, MIPI_DCS_SET_DISPLAY_ON);
 
 	return 0;
diff --git a/drivers/staging/fbtft/fb_upd161704.c b/drivers/staging/fbtft/fb_upd161704.c
index acc425fdf34e..10794f81b66e 100644
--- a/drivers/staging/fbtft/fb_upd161704.c
+++ b/drivers/staging/fbtft/fb_upd161704.c
@@ -36,27 +36,26 @@ static int init_display(struct fbtft_par *par)
 
 	/* oscillator start */
 	write_reg(par, 0x003A, 0x0001);	/*Oscillator 0: stop, 1: operation */
-	udelay(100);
-
+	usleep_range(100, 101);
 	/* y-setting */
 	write_reg(par, 0x0024, 0x007B);	/* amplitude setting */
-	udelay(10);
+	usleep_range(10, 11);
 	write_reg(par, 0x0025, 0x003B);	/* amplitude setting */
 	write_reg(par, 0x0026, 0x0034);	/* amplitude setting */
-	udelay(10);
+	usleep_range(10, 11);
 	write_reg(par, 0x0027, 0x0004);	/* amplitude setting */
 	write_reg(par, 0x0052, 0x0025);	/* circuit setting 1 */
-	udelay(10);
+	usleep_range(10, 11);
 	write_reg(par, 0x0053, 0x0033);	/* circuit setting 2 */
 	write_reg(par, 0x0061, 0x001C);	/* adjustment V10 positive polarity */
-	udelay(10);
+	usleep_range(10, 11);
 	write_reg(par, 0x0062, 0x002C);	/* adjustment V9 negative polarity */
 	write_reg(par, 0x0063, 0x0022);	/* adjustment V34 positive polarity */
-	udelay(10);
+	usleep_range(10, 11);
 	write_reg(par, 0x0064, 0x0027);	/* adjustment V31 negative polarity */
-	udelay(10);
+	usleep_range(10, 11);
 	write_reg(par, 0x0065, 0x0014);	/* adjustment V61 negative polarity */
-	udelay(10);
+	usleep_range(10, 11);
 	write_reg(par, 0x0066, 0x0010);	/* adjustment V61 negative polarity */
 
 	/* Basical clock for 1 line (BASECOUNT[7:0]) number specified */
@@ -64,7 +63,7 @@ static int init_display(struct fbtft_par *par)
 
 	/* Power supply setting */
 	write_reg(par, 0x0019, 0x0000);	/* DC/DC output setting */
-	udelay(200);
+	usleep_range(200, 201);
 	write_reg(par, 0x001A, 0x1000);	/* DC/DC frequency setting */
 	write_reg(par, 0x001B, 0x0023);	/* DC/DC rising setting */
 	write_reg(par, 0x001C, 0x0C01);	/* Regulator voltage setting */
diff --git a/drivers/staging/fbtft/fb_watterott.c b/drivers/staging/fbtft/fb_watterott.c
index bfd1527f20f7..9ad4307a50c8 100644
--- a/drivers/staging/fbtft/fb_watterott.c
+++ b/drivers/staging/fbtft/fb_watterott.c
@@ -83,7 +83,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 			par->txbuf.buf, 10 + par->info->fix.line_length);
 		if (ret < 0)
 			return ret;
-		udelay(300);
+		usleep_range(300, 301);
 	}
 
 	return 0;
@@ -122,7 +122,7 @@ static int write_vmem_8bit(struct fbtft_par *par, size_t offset, size_t len)
 			par->txbuf.buf, 10 + par->info->var.xres);
 		if (ret < 0)
 			return ret;
-		udelay(700);
+		usleep_range(700, 701);
 	}
 
 	return 0;
-- 
2.18.0