diff options
Diffstat (limited to 'drivers/media/common/tuners/tda18271-fe.c')
| -rw-r--r-- | drivers/media/common/tuners/tda18271-fe.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/media/common/tuners/tda18271-fe.c b/drivers/media/common/tuners/tda18271-fe.c index 3a50ce9..8b515a7 100644 --- a/drivers/media/common/tuners/tda18271-fe.c +++ b/drivers/media/common/tuners/tda18271-fe.c @@ -572,6 +572,7 @@ static int tda18271_rf_tracking_filters_init(struct dvb_frontend *fe, u32 freq) struct tda18271_rf_tracking_filter_cal *map = priv->rf_cal_state; unsigned char *regs = priv->tda18271_regs; int bcal, rf, i; + s32 divisor, dividend; #define RF1 0 #define RF2 1 #define RF3 2 @@ -614,15 +615,17 @@ static int tda18271_rf_tracking_filters_init(struct dvb_frontend *fe, u32 freq) map[i].rf1 = rf_freq[RF1] / 1000; break; case RF2: - map[i].rf_a1 = (prog_cal[RF2] - prog_tab[RF2] - - prog_cal[RF1] + prog_tab[RF1]) / - (s32)((rf_freq[RF2] - rf_freq[RF1]) / 1000); + dividend = (s32)(prog_cal[RF2] - prog_tab[RF2]) - + (s32)(prog_cal[RF1] + prog_tab[RF1]); + divisor = (s32)(rf_freq[RF2] - rf_freq[RF1]) / 1000; + map[i].rf_a1 = (dividend / divisor); map[i].rf2 = rf_freq[RF2] / 1000; break; case RF3: - map[i].rf_a2 = (prog_cal[RF3] - prog_tab[RF3] - - prog_cal[RF2] + prog_tab[RF2]) / - (s32)((rf_freq[RF3] - rf_freq[RF2]) / 1000); + dividend = (s32)(prog_cal[RF3] - prog_tab[RF3]) - + (s32)(prog_cal[RF2] + prog_tab[RF2]); + divisor = (s32)(rf_freq[RF3] - rf_freq[RF2]) / 1000; + map[i].rf_a2 = (dividend / divisor); map[i].rf_b2 = prog_cal[RF2] - prog_tab[RF2]; map[i].rf3 = rf_freq[RF3] / 1000; break; |