diff options
| author | Hugo Villeneuve <hvilleneuve@dimonoff.com> | 2023-12-21 18:18:19 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-07-05 09:00:21 +0200 |
| commit | 9dcb6eb967fe778d1d985a709ac4030895603fc0 (patch) | |
| tree | c8a5b40c641b901c5820dc3f6d754b260015094b | |
| parent | 656068638e1da7728abde65760bc8e61106a9b34 (diff) | |
serial: sc16is7xx: replace hardcoded divisor value with BIT() macro
[ Upstream commit 2e57cefc4477659527f7adab1f87cdbf60ef1ae6 ]
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>
Link: https://lore.kernel.org/r/20231221231823.2327894-13-hugo@hugovil.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 8492bd91aa05 ("serial: sc16is7xx: fix bug in sc16is7xx_set_baud() when using prescaler")
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/tty/serial/sc16is7xx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index 800cb94e4b91..a1331225cdc2 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -496,7 +496,7 @@ 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; } |