diff options
Diffstat (limited to 'drivers/media/common/tuners/tda18271-fe.c')
| -rw-r--r-- | drivers/media/common/tuners/tda18271-fe.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/media/common/tuners/tda18271-fe.c b/drivers/media/common/tuners/tda18271-fe.c index 8b515a7d93f8..e0fd9f5d5944 100644 --- a/drivers/media/common/tuners/tda18271-fe.c +++ b/drivers/media/common/tuners/tda18271-fe.c @@ -256,8 +256,9 @@ static int tda18271c2_rf_tracking_filters_correction(struct dvb_frontend *fe, struct tda18271_priv *priv = fe->tuner_priv; struct tda18271_rf_tracking_filter_cal *map = priv->rf_cal_state; unsigned char *regs = priv->tda18271_regs; - int tm_current, rfcal_comp, approx, i, ret; - u8 dc_over_dt, rf_tab; + int i, ret; + u8 tm_current, dc_over_dt, rf_tab; + s32 rfcal_comp, approx; /* power up */ ret = tda18271_set_standby_mode(fe, 0, 0, 0); @@ -277,11 +278,11 @@ static int tda18271c2_rf_tracking_filters_correction(struct dvb_frontend *fe, return i; if ((0 == map[i].rf3) || (freq / 1000 < map[i].rf2)) { - approx = map[i].rf_a1 * - (freq / 1000 - map[i].rf1) + map[i].rf_b1 + rf_tab; + approx = map[i].rf_a1 * (s32)(freq / 1000 - map[i].rf1) + + map[i].rf_b1 + rf_tab; } else { - approx = map[i].rf_a2 * - (freq / 1000 - map[i].rf2) + map[i].rf_b2 + rf_tab; + approx = map[i].rf_a2 * (s32)(freq / 1000 - map[i].rf2) + + map[i].rf_b2 + rf_tab; } if (approx < 0) @@ -292,9 +293,9 @@ static int tda18271c2_rf_tracking_filters_correction(struct dvb_frontend *fe, tda18271_lookup_map(fe, RF_CAL_DC_OVER_DT, &freq, &dc_over_dt); /* calculate temperature compensation */ - rfcal_comp = dc_over_dt * (tm_current - priv->tm_rfcal) / 1000; + rfcal_comp = dc_over_dt * (s32)(tm_current - priv->tm_rfcal) / 1000; - regs[R_EB14] = approx + rfcal_comp; + regs[R_EB14] = (unsigned char)(approx + rfcal_comp); ret = tda18271_write_regs(fe, R_EB14, 1); fail: return ret; @@ -611,7 +612,7 @@ static int tda18271_rf_tracking_filters_init(struct dvb_frontend *fe, u32 freq) switch (rf) { case RF1: map[i].rf_a1 = 0; - map[i].rf_b1 = prog_cal[RF1] - prog_tab[RF1]; + map[i].rf_b1 = (s32)(prog_cal[RF1] - prog_tab[RF1]); map[i].rf1 = rf_freq[RF1] / 1000; break; case RF2: @@ -626,7 +627,7 @@ static int tda18271_rf_tracking_filters_init(struct dvb_frontend *fe, u32 freq) (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].rf_b2 = (s32)(prog_cal[RF2] - prog_tab[RF2]); map[i].rf3 = rf_freq[RF3] / 1000; break; default: |