From 634623d3ba6146e13d06d3f36188c189c8a58a23 Mon Sep 17 00:00:00 2001 From: Hartmut Hackmann Date: Tue, 8 Nov 2005 21:35:13 -0800 Subject: [PATCH] [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 Signed-off-by: Michael Krufky Cc: Johannes Stezenbach Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/media/dvb/frontends/tda1004x.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/drivers/media/dvb/frontends/tda1004x.c b/drivers/media/dvb/frontends/tda1004x.c index 3529c618f8..7968743826 100644 --- a/drivers/media/dvb/frontends/tda1004x.c +++ b/drivers/media/dvb/frontends/tda1004x.c @@ -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; -- 2.39.5