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Diffstat (limited to 'drivers/tty/serial/sh-sci.c')
-rw-r--r--drivers/tty/serial/sh-sci.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index eb59bb235a52..f2fad4d8eb9e 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1818,13 +1818,13 @@ static unsigned int sci_scbrr_calc(unsigned int algo_id, unsigned int bps,
1818{ 1818{
1819 switch (algo_id) { 1819 switch (algo_id) {
1820 case SCBRR_ALGO_1: 1820 case SCBRR_ALGO_1:
1821 return ((freq + 16 * bps) / (16 * bps) - 1); 1821 return freq / (16 * bps);
1822 case SCBRR_ALGO_2: 1822 case SCBRR_ALGO_2:
1823 return ((freq + 16 * bps) / (32 * bps) - 1); 1823 return DIV_ROUND_CLOSEST(freq, 32 * bps) - 1;
1824 case SCBRR_ALGO_3: 1824 case SCBRR_ALGO_3:
1825 return (((freq * 2) + 16 * bps) / (16 * bps) - 1); 1825 return freq / (8 * bps);
1826 case SCBRR_ALGO_4: 1826 case SCBRR_ALGO_4:
1827 return (((freq * 2) + 16 * bps) / (32 * bps) - 1); 1827 return DIV_ROUND_CLOSEST(freq, 16 * bps) - 1;
1828 } 1828 }
1829 1829
1830 /* Warn, but use a safe default */ 1830 /* Warn, but use a safe default */