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[v2,12/16] serial: sc16is7xx: replace hardcoded divisor value with BIT() macro

Message ID 20231221231823.2327894-13-hugo@hugovil.com
State New
Headers show
Series serial: sc16is7xx: fixes, cleanups and improvements | expand

Commit Message

Hugo Villeneuve Dec. 21, 2023, 11:18 p.m. UTC 
From: Hugo Villeneuve <hvilleneuve@dimonoff.com>

To better show why the limit is what it is, since we have only 16 bits for
the divisor.

Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
---
 drivers/tty/serial/sc16is7xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index da862b8efcbe..3d963fe0e78a 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -486,7 +486,7 @@  static int sc16is7xx_set_baud(struct uart_port *port, int baud)
 	u8 prescaler = 0;
 	unsigned long clk = port->uartclk, div = clk / 16 / baud;
 
-	if (div > 0xffff) {
+	if (div >= BIT(16)) {
 		prescaler = SC16IS7XX_MCR_CLKSEL_BIT;
 		div /= 4;
 	}