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serial: sh-sci: Simplify multiplication/shift logic

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"a * (1 << b)" == "a << b".

No change in generated code.

Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/118d62e167f6cf5e98bdf9a738634b4590ea8d09.1645460901.git.geert+renesas@glider.be
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Geert Uytterhoeven
2022-02-21 17:29:25 +01:00
committed by Greg Kroah-Hartman
parent aab68e959b
commit 81ddb200f6
1 changed files with 1 additions and 1 deletions
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drivers/tty/serial/sh-sci.c
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@@ -2293,7 +2293,7 @@ static int sci_scbrr_calc(struct sci_port *s, unsigned int bps,
for_each_sr(sr, s) { for_each_sr(sr, s) {
for (c = 0; c <= 3; c++) { for (c = 0; c <= 3; c++) {
/* integerized formulas from HSCIF documentation */ /* integerized formulas from HSCIF documentation */
prediv = sr * (1 << (2 * c + 1)); prediv = sr << (2 * c + 1);
/* /*
* We need to calculate: * We need to calculate: