diff options
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/sh-sci.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 26dad3e87b52..2ba42069922f 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -1789,11 +1789,13 @@ static void sci_baud_calc_hscif(unsigned int bps, unsigned long freq, for (sr = 8; sr <= 32; sr++) { for (c = 0; c <= 3; c++) { /* integerized formulas from HSCIF documentation */ - br = freq / (sr * (1 << (2 * c + 1)) * bps) - 1; + br = DIV_ROUND_CLOSEST(freq, (sr * + (1 << (2 * c + 1)) * bps)) - 1; if (br < 0 || br > 255) continue; - err = freq / ((br + 1) * bps * sr * - (1 << (2 * c + 1)) / 1000) - 1000; + err = DIV_ROUND_CLOSEST(freq, ((br + 1) * bps * sr * + (1 << (2 * c + 1)) / 1000)) - + 1000; if (min_err > err) { min_err = err; *brr = br; |