diff options
| author | Michael Krufky <mkrufky@linuxtv.org> | 2008-04-22 14:46:23 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-04-24 14:07:55 -0300 |
| commit | 4efb0ca5d00f2c7a8bf9632556a4b4330cf409c5 (patch) | |
| tree | 4ce1c38c66a64c590ef06403e6a38e2be7175772 /drivers/media/dvb/frontends/tda18271-common.c | |
| parent | 40194b2b1bdd01358c1e9b5a9b8dd78390cc05f7 (diff) | |
V4L/DVB (7435): tda18271: add function tda18271_charge_pump_source
Force the main pll charge pump or cal pll charge pump to source current
to the main pll loop filter or cal pll loop filter, respectively.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/dvb/frontends/tda18271-common.c')
| -rw-r--r-- | drivers/media/dvb/frontends/tda18271-common.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/media/dvb/frontends/tda18271-common.c b/drivers/media/dvb/frontends/tda18271-common.c index 84d430c5285..e27a7620a32 100644 --- a/drivers/media/dvb/frontends/tda18271-common.c +++ b/drivers/media/dvb/frontends/tda18271-common.c @@ -217,6 +217,21 @@ int tda18271_write_regs(struct dvb_frontend *fe, int idx, int len) /*---------------------------------------------------------------------*/ +int tda18271_charge_pump_source(struct dvb_frontend *fe, + enum tda18271_pll pll, int force) +{ + struct tda18271_priv *priv = fe->tuner_priv; + unsigned char *regs = priv->tda18271_regs; + + int r_cp = (pll == TDA18271_CAL_PLL) ? R_EB7 : R_EB4; + + regs[r_cp] &= ~0x20; + regs[r_cp] |= ((force & 1) << 5); + tda18271_write_regs(fe, r_cp, 1); + + return 0; +} + int tda18271_init_regs(struct dvb_frontend *fe) { struct tda18271_priv *priv = fe->tuner_priv; @@ -359,13 +374,11 @@ int tda18271_init_regs(struct dvb_frontend *fe) if ((priv->id) == TDA18271HDC2) { /* main pll cp source on */ - regs[R_EB4] = 0x61; - tda18271_write_regs(fe, R_EB4, 1); + tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 1); msleep(1); /* main pll cp source off */ - regs[R_EB4] = 0x41; - tda18271_write_regs(fe, R_EB4, 1); + tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 0); } msleep(5); /* pll locking */ |