From b5d189702b56c5d09bec71798c0314090b36116d Mon Sep 17 00:00:00 2001 From: Henk Vergonet <Henk.Vergonet@gmail.com> Date: Tue, 15 Sep 2009 02:09:17 -0300 Subject: [PATCH] V4L/DVB (12870): tda18271: update temperature compensation calculatation formula Update the tda18271c2_rf_tracking_filters_correction function to include the modified temperature compensation calculatation formula as described in Rev.04 of the TDA18271HD datasheet. Signed-off-by: Henk Vergonet <Henk.Vergonet@gmail.com> Signed-off-by: Michael Krufky <mkrufky@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> --- drivers/media/common/tuners/tda18271-fe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/common/tuners/tda18271-fe.c b/drivers/media/common/tuners/tda18271-fe.c index 916a6e150863f..64595112000dc 100644 --- a/drivers/media/common/tuners/tda18271-fe.c +++ b/drivers/media/common/tuners/tda18271-fe.c @@ -292,7 +292,7 @@ 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); + rfcal_comp = dc_over_dt * (tm_current - priv->tm_rfcal) / 1000; regs[R_EB14] = approx + rfcal_comp; ret = tda18271_write_regs(fe, R_EB14, 1); -- GitLab