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serial: sh-sci: Drop useless check for zero sampling_rate 

sci_port.sampling_rate is always non-zero, except for HSCIF, which uses
sci_baud_calc_hscif() instead of sci_scbrr_calc().

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Geert Uytterhoeven 2015-11-03 18:14:10 +01:00
parent 176ae5f674
commit dcafbb47bd
1 changed files with 1 additions and 7 deletions
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8
drivers/tty/serial/sh-sci.c
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@ -1863,13 +1863,7 @@ static void sci_shutdown(struct uart_port *port)
static unsigned int sci_scbrr_calc(struct sci_port *s, unsigned int bps,
unsigned long freq)
{
if (s->sampling_rate)
return DIV_ROUND_CLOSEST(freq, s->sampling_rate * bps) - 1;
/* Warn, but use a safe default */
WARN_ON(1);
return ((freq + 16 * bps) / (32 * bps) - 1);
return DIV_ROUND_CLOSEST(freq, s->sampling_rate * bps) - 1;
}
/* calculate frame length from SMR */