serial: Rename ns16550 functions to lower case

Lower case should be used for function names. Update this driver and its
callers accordingly.

Signed-off-by: Simon Glass <sjg@chromium.org>

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

20 files changed, 54 insertions, 53 deletions

diff --git a/arch/arm/mach-davinci/da850_lowlevel.c b/arch/arm/mach-davinci/da850_lowlevel.c
index 6994ded2c6..759c93747c 100644
--- a/arch/arm/mach-davinci/da850_lowlevel.c
+++ b/arch/arm/mach-davinci/da850_lowlevel.c
@@ -290,7 +290,7 @@ int arch_cpu_init(void)
 	board_gpio_init();
 
 #if !CONFIG_IS_ENABLED(DM_SERIAL)
-	NS16550_init((struct ns16550 *)(CONFIG_SYS_NS16550_COM1),
+	ns16550_init((struct ns16550 *)(CONFIG_SYS_NS16550_COM1),
 		     CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE);
 #endif
 	/*
diff --git a/arch/arm/mach-davinci/spl.c b/arch/arm/mach-davinci/spl.c
index 3c8330b47f..d0d7a81471 100644
--- a/arch/arm/mach-davinci/spl.c
+++ b/arch/arm/mach-davinci/spl.c
@@ -27,9 +27,9 @@ void puts(const char *str)
 void putc(char c)
 {
 	if (c == '\n')
-		NS16550_putc((struct ns16550 *)(CONFIG_SYS_NS16550_COM1), '\r');
+		ns16550_putc((struct ns16550 *)(CONFIG_SYS_NS16550_COM1), '\r');
 
-	NS16550_putc((struct ns16550 *)(CONFIG_SYS_NS16550_COM1), c);
+	ns16550_putc((struct ns16550 *)(CONFIG_SYS_NS16550_COM1), c);
 }
 #endif /* CONFIG_SPL_LIBCOMMON_SUPPORT */
 
diff --git a/arch/arm/mach-keystone/init.c b/arch/arm/mach-keystone/init.c
index f4edaaaaac..4950f14655 100644
--- a/arch/arm/mach-keystone/init.c
+++ b/arch/arm/mach-keystone/init.c
@@ -185,7 +185,7 @@ int arch_cpu_init(void)
 	 * driver doesn't handle this.
 	 */
 #ifndef CONFIG_DM_SERIAL
-	NS16550_init((struct ns16550 *)(CONFIG_SYS_NS16550_COM2),
+	ns16550_init((struct ns16550 *)(CONFIG_SYS_NS16550_COM2),
 		     CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE);
 #endif
 
diff --git a/board/Arcturus/ucp1020/spl.c b/board/Arcturus/ucp1020/spl.c
index 8e607558f4..4ed06a80b7 100644
--- a/board/Arcturus/ucp1020/spl.c
+++ b/board/Arcturus/ucp1020/spl.c
@@ -58,7 +58,7 @@ void board_init_f(ulong bootflag)
 	bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
 	gd->bus_clk = bus_clk;
 
-	NS16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
+	ns16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
 		     bus_clk / 16 / CONFIG_BAUDRATE);
 #ifdef CONFIG_SPL_MMC_BOOT
 	puts("\nSD boot...\n");
diff --git a/board/Arcturus/ucp1020/spl_minimal.c b/board/Arcturus/ucp1020/spl_minimal.c
index 38d84afc9e..90abec9cce 100644
--- a/board/Arcturus/ucp1020/spl_minimal.c
+++ b/board/Arcturus/ucp1020/spl_minimal.c
@@ -34,7 +34,7 @@ void board_init_f(ulong bootflag)
 	plat_ratio >>= 1;
 	gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
 
-	NS16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
+	ns16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
 		     gd->bus_clk / 16 / CONFIG_BAUDRATE);
 
 	puts("\nNAND boot... ");
@@ -55,9 +55,9 @@ void board_init_r(gd_t *gd, ulong dest_addr)
 void putc(char c)
 {
 	if (c == '\n')
-		NS16550_putc((struct ns16550 *)CONFIG_SYS_NS16550_COM1, '\r');
+		ns16550_putc((struct ns16550 *)CONFIG_SYS_NS16550_COM1, '\r');
 
-	NS16550_putc((struct ns16550 *)CONFIG_SYS_NS16550_COM1, c);
+	ns16550_putc((struct ns16550 *)CONFIG_SYS_NS16550_COM1, c);
 }
 
 void puts(const char *str)
diff --git a/board/Synology/ds109/ds109.c b/board/Synology/ds109/ds109.c
index c36e4d37fc..fe3b0eb554 100644
--- a/board/Synology/ds109/ds109.c
+++ b/board/Synology/ds109/ds109.c
@@ -108,8 +108,9 @@ void reset_misc(void)
 
 	b_d = ns16550_calc_divisor((struct ns16550 *)CONFIG_SYS_NS16550_COM2,
 				   CONFIG_SYS_NS16550_CLK, 9600);
-	NS16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM2, b_d);
-	NS16550_putc((struct ns16550 *)CONFIG_SYS_NS16550_COM2, SOFTWARE_REBOOT);
+	ns16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM2, b_d);
+	ns16550_putc((struct ns16550 *)CONFIG_SYS_NS16550_COM2,
+		     SOFTWARE_REBOOT);
 }
 
 /* Support old kernels */
diff --git a/board/freescale/mpc8313erdb/mpc8313erdb.c b/board/freescale/mpc8313erdb/mpc8313erdb.c
index 69fa89146d..7e1a31f265 100644
--- a/board/freescale/mpc8313erdb/mpc8313erdb.c
+++ b/board/freescale/mpc8313erdb/mpc8313erdb.c
@@ -132,7 +132,7 @@ int ft_board_setup(void *blob, struct bd_info *bd)
 void board_init_f(ulong bootflag)
 {
 	board_early_init_f();
-	NS16550_init((struct ns16550 *)(CONFIG_SYS_IMMR + 0x4500),
+	ns16550_init((struct ns16550 *)(CONFIG_SYS_IMMR + 0x4500),
 		     CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE);
 	puts("NAND boot... ");
 	timer_init();
@@ -152,8 +152,8 @@ void putc(char c)
 		return;
 
 	if (c == '\n')
-		NS16550_putc((struct ns16550 *)(CONFIG_SYS_IMMR + 0x4500), '\r');
+		ns16550_putc((struct ns16550 *)(CONFIG_SYS_IMMR + 0x4500), '\r');
 
-	NS16550_putc((struct ns16550 *)(CONFIG_SYS_IMMR + 0x4500), c);
+	ns16550_putc((struct ns16550 *)(CONFIG_SYS_IMMR + 0x4500), c);
 }
 #endif
diff --git a/board/freescale/mpc8315erdb/mpc8315erdb.c b/board/freescale/mpc8315erdb/mpc8315erdb.c
index fff8699d61..05b983a3f2 100644
--- a/board/freescale/mpc8315erdb/mpc8315erdb.c
+++ b/board/freescale/mpc8315erdb/mpc8315erdb.c
@@ -220,7 +220,7 @@ int checkboard(void)
 void board_init_f(ulong bootflag)
 {
 	board_early_init_f();
-	NS16550_init((struct ns16550 *)(CONFIG_SYS_IMMR + 0x4500),
+	ns16550_init((struct ns16550 *)(CONFIG_SYS_IMMR + 0x4500),
 		     CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE);
 	puts("NAND boot... ");
 	timer_init();
@@ -240,9 +240,9 @@ void putc(char c)
 		return;
 
 	if (c == '\n')
-		NS16550_putc((struct ns16550 *)(CONFIG_SYS_IMMR + 0x4500), '\r');
+		ns16550_putc((struct ns16550 *)(CONFIG_SYS_IMMR + 0x4500), '\r');
 
-	NS16550_putc((struct ns16550 *)(CONFIG_SYS_IMMR + 0x4500), c);
+	ns16550_putc((struct ns16550 *)(CONFIG_SYS_IMMR + 0x4500), c);
 }
 
 #endif /* CONFIG_NAND_SPL */
diff --git a/board/freescale/p1010rdb/spl.c b/board/freescale/p1010rdb/spl.c
index c015a6bf36..35b95e0838 100644
--- a/board/freescale/p1010rdb/spl.c
+++ b/board/freescale/p1010rdb/spl.c
@@ -44,7 +44,7 @@ void board_init_f(ulong bootflag)
 	plat_ratio >>= 1;
 	gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
 
-	NS16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
+	ns16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
 		     gd->bus_clk / 16 / CONFIG_BAUDRATE);
 
 #ifdef CONFIG_SPL_MMC_BOOT
diff --git a/board/freescale/p1010rdb/spl_minimal.c b/board/freescale/p1010rdb/spl_minimal.c
index 4cc70ea352..989c5b139a 100644
--- a/board/freescale/p1010rdb/spl_minimal.c
+++ b/board/freescale/p1010rdb/spl_minimal.c
@@ -31,7 +31,7 @@ void board_init_f(ulong bootflag)
 	plat_ratio >>= 1;
 	gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
 
-	NS16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
+	ns16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
 		     gd->bus_clk / 16 / CONFIG_BAUDRATE);
 
 	puts("\nNAND boot... ");
@@ -53,9 +53,9 @@ void board_init_r(gd_t *gd, ulong dest_addr)
 void putc(char c)
 {
 	if (c == '\n')
-		NS16550_putc((struct ns16550 *)CONFIG_SYS_NS16550_COM1, '\r');
+		ns16550_putc((struct ns16550 *)CONFIG_SYS_NS16550_COM1, '\r');
 
-	NS16550_putc((struct ns16550 *)CONFIG_SYS_NS16550_COM1, c);
+	ns16550_putc((struct ns16550 *)CONFIG_SYS_NS16550_COM1, c);
 }
 
 void puts(const char *str)
diff --git a/board/freescale/p1_p2_rdb_pc/spl.c b/board/freescale/p1_p2_rdb_pc/spl.c
index 0b8b8a7575..b16f701ae1 100644
--- a/board/freescale/p1_p2_rdb_pc/spl.c
+++ b/board/freescale/p1_p2_rdb_pc/spl.c
@@ -50,7 +50,7 @@ void board_init_f(ulong bootflag)
 	bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
 	gd->bus_clk = bus_clk;
 
-	NS16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
+	ns16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
 		     bus_clk / 16 / CONFIG_BAUDRATE);
 #ifdef CONFIG_SPL_MMC_BOOT
 	puts("\nSD boot...\n");
diff --git a/board/freescale/p1_p2_rdb_pc/spl_minimal.c b/board/freescale/p1_p2_rdb_pc/spl_minimal.c
index 7068e94a2d..eb3f2c83fa 100644
--- a/board/freescale/p1_p2_rdb_pc/spl_minimal.c
+++ b/board/freescale/p1_p2_rdb_pc/spl_minimal.c
@@ -30,7 +30,7 @@ void board_init_f(ulong bootflag)
 	plat_ratio >>= 1;
 	gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
 
-	NS16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
+	ns16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
 		     gd->bus_clk / 16 / CONFIG_BAUDRATE);
 
 	puts("\nNAND boot... ");
@@ -51,9 +51,9 @@ void board_init_r(gd_t *gd, ulong dest_addr)
 void putc(char c)
 {
 	if (c == '\n')
-		NS16550_putc((struct ns16550 *)CONFIG_SYS_NS16550_COM1, '\r');
+		ns16550_putc((struct ns16550 *)CONFIG_SYS_NS16550_COM1, '\r');
 
-	NS16550_putc((struct ns16550 *)CONFIG_SYS_NS16550_COM1, c);
+	ns16550_putc((struct ns16550 *)CONFIG_SYS_NS16550_COM1, c);
 }
 
 void puts(const char *str)
diff --git a/board/freescale/t102xrdb/spl.c b/board/freescale/t102xrdb/spl.c
index d23b2f5fde..66d2f3bda7 100644
--- a/board/freescale/t102xrdb/spl.c
+++ b/board/freescale/t102xrdb/spl.c
@@ -82,7 +82,7 @@ void board_init_f(ulong bootflag)
 	plat_ratio = (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f;
 	ccb_clk = sys_clk * plat_ratio / 2;
 
-	NS16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
+	ns16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
 		     ccb_clk / 16 / CONFIG_BAUDRATE);
 
 #if defined(CONFIG_SPL_MMC_BOOT)
diff --git a/board/freescale/t104xrdb/spl.c b/board/freescale/t104xrdb/spl.c
index a93cc38450..28ac12a1fd 100644
--- a/board/freescale/t104xrdb/spl.c
+++ b/board/freescale/t104xrdb/spl.c
@@ -81,7 +81,7 @@ void board_init_f(ulong bootflag)
 	plat_ratio = (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f;
 	uart_clk = sys_clk * plat_ratio / 2;
 
-	NS16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
+	ns16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
 		     uart_clk / 16 / CONFIG_BAUDRATE);
 
 	relocate_code(CONFIG_SPL_RELOC_STACK, (gd_t *)CONFIG_SPL_GD_ADDR, 0x0);
diff --git a/board/freescale/t208xqds/spl.c b/board/freescale/t208xqds/spl.c
index c6b23e4c69..13e61f083f 100644
--- a/board/freescale/t208xqds/spl.c
+++ b/board/freescale/t208xqds/spl.c
@@ -81,7 +81,7 @@ void board_init_f(ulong bootflag)
 	plat_ratio = (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f;
 	ccb_clk = sys_clk * plat_ratio / 2;
 
-	NS16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
+	ns16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
 		     ccb_clk / 16 / CONFIG_BAUDRATE);
 
 #if defined(CONFIG_SPL_MMC_BOOT)
diff --git a/board/freescale/t208xrdb/spl.c b/board/freescale/t208xrdb/spl.c
index 4b84383016..2bba94da7b 100644
--- a/board/freescale/t208xrdb/spl.c
+++ b/board/freescale/t208xrdb/spl.c
@@ -51,7 +51,7 @@ void board_init_f(ulong bootflag)
 	plat_ratio = (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f;
 	ccb_clk = sys_clk * plat_ratio / 2;
 
-	NS16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
+	ns16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
 		     ccb_clk / 16 / CONFIG_BAUDRATE);
 
 #if defined(CONFIG_SPL_MMC_BOOT)
diff --git a/board/freescale/t4rdb/spl.c b/board/freescale/t4rdb/spl.c
index efe2b4eb95..fc624efbe6 100644
--- a/board/freescale/t4rdb/spl.c
+++ b/board/freescale/t4rdb/spl.c
@@ -60,7 +60,7 @@ void board_init_f(ulong bootflag)
 	plat_ratio = (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f;
 	ccb_clk = sys_clk * plat_ratio / 2;
 
-	NS16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
+	ns16550_init((struct ns16550 *)CONFIG_SYS_NS16550_COM1,
 		     ccb_clk / 16 / CONFIG_BAUDRATE);
 
 	puts("\nSD boot...\n");
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
index d529b1b807..17808fb70a 100644
--- a/drivers/serial/ns16550.c
+++ b/drivers/serial/ns16550.c
@@ -212,7 +212,7 @@ int ns16550_calc_divisor(struct ns16550 *port, int clock, int baudrate)
 	return DIV_ROUND_CLOSEST(clock, mode_x_div * baudrate);
 }
 
-static void NS16550_setbrg(struct ns16550 *com_port, int baud_divisor)
+static void ns16550_setbrg(struct ns16550 *com_port, int baud_divisor)
 {
 	/* to keep serial format, read lcr before writing BKSE */
 	int lcr_val = serial_in(&com_port->lcr) & ~UART_LCR_BKSE;
@@ -223,7 +223,7 @@ static void NS16550_setbrg(struct ns16550 *com_port, int baud_divisor)
 	serial_out(lcr_val, &com_port->lcr);
 }
 
-void NS16550_init(struct ns16550 *com_port, int baud_divisor)
+void ns16550_init(struct ns16550 *com_port, int baud_divisor)
 {
 #if (defined(CONFIG_SPL_BUILD) && \
 		(defined(CONFIG_OMAP34XX) || defined(CONFIG_OMAP44XX)))
@@ -235,13 +235,13 @@ void NS16550_init(struct ns16550 *com_port, int baud_divisor)
 	if ((serial_in(&com_port->lsr) & (UART_LSR_TEMT | UART_LSR_THRE))
 	     == UART_LSR_THRE) {
 		if (baud_divisor != -1)
-			NS16550_setbrg(com_port, baud_divisor);
+			ns16550_setbrg(com_port, baud_divisor);
 		else {
 			// Re-use old baud rate divisor to flush transmit reg.
 			const int dll = serial_in(&com_port->dll);
 			const int dlm = serial_in(&com_port->dlm);
 			const int divisor = dll | (dlm << 8);
-			NS16550_setbrg(com_port, divisor);
+			ns16550_setbrg(com_port, divisor);
 		}
 		serial_out(0, &com_port->mdr1);
 	}
@@ -260,7 +260,7 @@ void NS16550_init(struct ns16550 *com_port, int baud_divisor)
 	/* initialize serial config to 8N1 before writing baudrate */
 	serial_out(UART_LCRVAL, &com_port->lcr);
 	if (baud_divisor != -1)
-		NS16550_setbrg(com_port, baud_divisor);
+		ns16550_setbrg(com_port, baud_divisor);
 #if defined(CONFIG_ARCH_OMAP2PLUS) || defined(CONFIG_SOC_DA8XX) || \
 	defined(CONFIG_OMAP_SERIAL)
 	/* /16 is proper to hit 115200 with 48MHz */
@@ -272,17 +272,17 @@ void NS16550_init(struct ns16550 *com_port, int baud_divisor)
 }
 
 #ifndef CONFIG_NS16550_MIN_FUNCTIONS
-void NS16550_reinit(struct ns16550 *com_port, int baud_divisor)
+void ns16550_reinit(struct ns16550 *com_port, int baud_divisor)
 {
 	serial_out(CONFIG_SYS_NS16550_IER, &com_port->ier);
-	NS16550_setbrg(com_port, 0);
+	ns16550_setbrg(com_port, 0);
 	serial_out(UART_MCRVAL, &com_port->mcr);
 	serial_out(ns16550_getfcr(com_port), &com_port->fcr);
-	NS16550_setbrg(com_port, baud_divisor);
+	ns16550_setbrg(com_port, baud_divisor);
 }
 #endif /* CONFIG_NS16550_MIN_FUNCTIONS */
 
-void NS16550_putc(struct ns16550 *com_port, char c)
+void ns16550_putc(struct ns16550 *com_port, char c)
 {
 	while ((serial_in(&com_port->lsr) & UART_LSR_THRE) == 0)
 		;
@@ -299,7 +299,7 @@ void NS16550_putc(struct ns16550 *com_port, char c)
 }
 
 #ifndef CONFIG_NS16550_MIN_FUNCTIONS
-char NS16550_getc(struct ns16550 *com_port)
+char ns16550_getc(struct ns16550 *com_port)
 {
 	while ((serial_in(&com_port->lsr) & UART_LSR_DR) == 0) {
 #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_USB_TTY)
@@ -311,7 +311,7 @@ char NS16550_getc(struct ns16550 *com_port)
 	return serial_in(&com_port->rbr);
 }
 
-int NS16550_tstc(struct ns16550 *com_port)
+int ns16550_tstc(struct ns16550 *com_port)
 {
 	return (serial_in(&com_port->lsr) & UART_LSR_DR) != 0;
 }
@@ -423,7 +423,7 @@ static int ns16550_serial_setbrg(struct udevice *dev, int baudrate)
 
 	clock_divisor = ns16550_calc_divisor(com_port, plat->clock, baudrate);
 
-	NS16550_setbrg(com_port, clock_divisor);
+	ns16550_setbrg(com_port, clock_divisor);
 
 	return 0;
 }
@@ -520,7 +520,7 @@ int ns16550_serial_probe(struct udevice *dev)
 		reset_deassert_bulk(&reset_bulk);
 
 	com_port->plat = dev_get_plat(dev);
-	NS16550_init(com_port, -1);
+	ns16550_init(com_port, -1);
 
 	return 0;
 }
diff --git a/drivers/serial/serial_ns16550.c b/drivers/serial/serial_ns16550.c
index a8d3602e9b..b5beca976d 100644
--- a/drivers/serial/serial_ns16550.c
+++ b/drivers/serial/serial_ns16550.c
@@ -78,7 +78,7 @@ static struct ns16550 *serial_ports[6] = {
 		int clock_divisor; \
 		clock_divisor = ns16550_calc_divisor(serial_ports[port-1], \
 				CONFIG_SYS_NS16550_CLK, gd->baudrate); \
-		NS16550_init(serial_ports[port-1], clock_divisor); \
+		ns16550_init(serial_ports[port - 1], clock_divisor); \
 		return 0 ; \
 	} \
 	static void eserial##port##_setbrg(void) \
@@ -117,9 +117,9 @@ static struct ns16550 *serial_ports[6] = {
 static void _serial_putc(const char c, const int port)
 {
 	if (c == '\n')
-		NS16550_putc(PORT, '\r');
+		ns16550_putc(PORT, '\r');
 
-	NS16550_putc(PORT, c);
+	ns16550_putc(PORT, c);
 }
 
 static void _serial_puts(const char *s, const int port)
@@ -131,12 +131,12 @@ static void _serial_puts(const char *s, const int port)
 
 static int _serial_getc(const int port)
 {
-	return NS16550_getc(PORT);
+	return ns16550_getc(PORT);
 }
 
 static int _serial_tstc(const int port)
 {
-	return NS16550_tstc(PORT);
+	return ns16550_tstc(PORT);
 }
 
 static void _serial_setbrg(const int port)
@@ -145,7 +145,7 @@ static void _serial_setbrg(const int port)
 
 	clock_divisor = ns16550_calc_divisor(PORT, CONFIG_SYS_NS16550_CLK,
 					     gd->baudrate);
-	NS16550_reinit(PORT, clock_divisor);
+	ns16550_reinit(PORT, clock_divisor);
 }
 
 static inline void
diff --git a/include/ns16550.h b/include/ns16550.h
index 75c5bf61fd..bef2071998 100644
--- a/include/ns16550.h
+++ b/include/ns16550.h
@@ -222,11 +222,11 @@ struct ns16550 {
 /* useful defaults for LCR */
 #define UART_LCR_8N1	0x03
 
-void NS16550_init(struct ns16550 *com_port, int baud_divisor);
-void NS16550_putc(struct ns16550 *com_port, char c);
-char NS16550_getc(struct ns16550 *com_port);
-int NS16550_tstc(struct ns16550 *com_port);
-void NS16550_reinit(struct ns16550 *com_port, int baud_divisor);
+void ns16550_init(struct ns16550 *com_port, int baud_divisor);
+void ns16550_putc(struct ns16550 *com_port, char c);
+char ns16550_getc(struct ns16550 *com_port);
+int ns16550_tstc(struct ns16550 *com_port);
+void ns16550_reinit(struct ns16550 *com_port, int baud_divisor);
 
 /**
  * ns16550_calc_divisor() - calculate the divisor given clock and baud rate