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[PATCH] dvb: tda1004x: pll communication fixes 

- leave I2C bridge open at pll_sleep to support Philips EUROPA based cards.
- give an error message if the communication with the pll fails.

Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Cc: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Hartmut Hackmann 2005-11-08 21:35:13 -08:00 committed by Linus Torvalds
parent 3cff00d912
commit 634623d3ba
1 changed files with 17 additions and 4 deletions
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21
drivers/media/dvb/frontends/tda1004x.c
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@ -420,7 +420,7 @@ static void tda10046_init_plls(struct dvb_frontend* fe)
struct tda1004x_state* state = fe->demodulator_priv;
tda1004x_write_byteI(state, TDA10046H_CONFPLL1, 0xf0);
tda1004x_write_byteI(state, TDA10046H_CONFPLL2, 10); // PLL M = 10
tda1004x_write_byteI(state, TDA10046H_CONFPLL2, 0x0a); // PLL M = 10
if (state->config->xtal_freq == TDA10046_XTAL_4M ) {
dprintk("%s: setting up PLLs for a 4 MHz Xtal\n", __FUNCTION__);
tda1004x_write_byteI(state, TDA10046H_CONFPLL3, 0); // PLL P = N = 0
@ -597,7 +597,10 @@ static int tda10046_init(struct dvb_frontend* fe)
// Init the tuner PLL
if (state->config->pll_init) {
tda1004x_enable_tuner_i2c(state);
state->config->pll_init(fe);
if (state->config->pll_init(fe)) {
printk(KERN_ERR "tda1004x: pll init failed\n");
return -EIO;
}
tda1004x_disable_tuner_i2c(state);
}
@ -667,7 +670,10 @@ static int tda1004x_set_fe(struct dvb_frontend* fe,
// set frequency
tda1004x_enable_tuner_i2c(state);
state->config->pll_set(fe, fe_params);
if (state->config->pll_set(fe, fe_params)) {
printk(KERN_ERR "tda1004x: pll set failed\n");
return -EIO;
}
tda1004x_disable_tuner_i2c(state);
// Hardcoded to use auto as much as possible on the TDA10045 as it
@ -832,6 +838,8 @@ static int tda1004x_set_fe(struct dvb_frontend* fe,
case TDA1004X_DEMOD_TDA10046:
tda1004x_write_mask(state, TDA1004X_AUTO, 0x40, 0x40);
msleep(1);
tda1004x_write_mask(state, TDA10046H_AGC_CONF, 4, 1);
break;
}
@ -1129,7 +1137,12 @@ static int tda1004x_sleep(struct dvb_frontend* fe)
if (state->config->pll_sleep != NULL) {
tda1004x_enable_tuner_i2c(state);
state->config->pll_sleep(fe);
tda1004x_disable_tuner_i2c(state);
if (state->config->if_freq != TDA10046_FREQ_052) {
/* special hack for Philips EUROPA Based boards:
* keep the I2c bridge open for tuner access in analog mode
*/
tda1004x_disable_tuner_i2c(state);
}
}
tda1004x_write_mask(state, TDA1004X_CONFC4, 1, 1);
break;