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serial: fsl_lpuart: fix maximum acceptable baud rate with over-sampling

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Using over-sampling ratio, lpuart can accept baud rate upto uartclk / 4.

Signed-off-by: Tomonori Sakita <[email protected]>
Signed-off-by: Atsushi Nemoto <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Tomonori Sakita 2019-01-21 17:34:16 +09:00 • committed by Greg Kroah-Hartman
commit 815d835b7b
1 changed files with 1 additions and 1 deletions
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drivers/tty/serial/fsl_lpuart.c
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@ -1697,7 +1697,7 @@ lpuart32_set_termios(struct uart_port *port, struct ktermios *termios,
}
/* ask the core to calculate the divisor */
baud = uart_get_baud_rate(port, termios, old, 50, port->uartclk / 16);
baud = uart_get_baud_rate(port, termios, old, 50, port->uartclk / 4);
spin_lock_irqsave(&sport->port.lock, flags);