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serial: fsl_lpuart: fix maximum acceptable baud rate with over-sampling
[ Upstream commit 815d835b7b
]
Using over-sampling ratio, lpuart can accept baud rate upto uartclk / 4.
Signed-off-by: Tomonori Sakita <tomonori.sakita@sord.co.jp>
Signed-off-by: Atsushi Nemoto <atsushi.nemoto@sord.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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1 changed files with 1 additions and 1 deletions
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@ -1494,7 +1494,7 @@ lpuart32_set_termios(struct uart_port *port, struct ktermios *termios,
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}
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/* ask the core to calculate the divisor */
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baud = uart_get_baud_rate(port, termios, old, 50, port->uartclk / 16);
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baud = uart_get_baud_rate(port, termios, old, 50, port->uartclk / 4);
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spin_lock_irqsave(&sport->port.lock, flags);
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