1 files changed, 31 insertions, 16 deletions

diff --git a/drivers/media/dvb/ttpci/budget.c b/drivers/media/dvb/ttpci/budget.c
index 1500210c06cf..874a10a9d493 100644
--- a/drivers/media/dvb/ttpci/budget.c
+++ b/drivers/media/dvb/ttpci/budget.c
@@ -442,6 +442,7 @@ static struct stv090x_config tt1600_stv090x_config = {
         .repeater_level         = STV090x_RPTLEVEL_16,
 
         .tuner_init             = NULL,
+        .tuner_sleep            = NULL,
         .tuner_set_mode         = NULL,
         .tuner_set_frequency    = NULL,
         .tuner_get_frequency    = NULL,
@@ -627,22 +628,36 @@ static void frontend_init(struct budget *budget)
                                                  &tt1600_stv6110x_config,
                                                  &budget->i2c_adap);
 
-                                tt1600_stv090x_config.tuner_init          = ctl->tuner_init;
-                                tt1600_stv090x_config.tuner_set_mode      = ctl->tuner_set_mode;
-                                tt1600_stv090x_config.tuner_set_frequency = ctl->tuner_set_frequency;
-                                tt1600_stv090x_config.tuner_get_frequency = ctl->tuner_get_frequency;
-                                tt1600_stv090x_config.tuner_set_bandwidth = ctl->tuner_set_bandwidth;
-                                tt1600_stv090x_config.tuner_get_bandwidth = ctl->tuner_get_bandwidth;
-                                tt1600_stv090x_config.tuner_set_bbgain    = ctl->tuner_set_bbgain;
-                                tt1600_stv090x_config.tuner_get_bbgain    = ctl->tuner_get_bbgain;
-                                tt1600_stv090x_config.tuner_set_refclk    = ctl->tuner_set_refclk;
-                                tt1600_stv090x_config.tuner_get_status    = ctl->tuner_get_status;
-
-                                dvb_attach(isl6423_attach,
-                                        budget->dvb_frontend,
-                                        &budget->i2c_adap,
-                                        &tt1600_isl6423_config);
-
+                                if (ctl) {
+                                        tt1600_stv090x_config.tuner_init          = ctl->tuner_init;
+                                        tt1600_stv090x_config.tuner_sleep         = ctl->tuner_sleep;
+                                        tt1600_stv090x_config.tuner_set_mode      = ctl->tuner_set_mode;
+                                        tt1600_stv090x_config.tuner_set_frequency = ctl->tuner_set_frequency;
+                                        tt1600_stv090x_config.tuner_get_frequency = ctl->tuner_get_frequency;
+                                        tt1600_stv090x_config.tuner_set_bandwidth = ctl->tuner_set_bandwidth;
+                                        tt1600_stv090x_config.tuner_get_bandwidth = ctl->tuner_get_bandwidth;
+                                        tt1600_stv090x_config.tuner_set_bbgain    = ctl->tuner_set_bbgain;
+                                        tt1600_stv090x_config.tuner_get_bbgain    = ctl->tuner_get_bbgain;
+                                        tt1600_stv090x_config.tuner_set_refclk    = ctl->tuner_set_refclk;
+                                        tt1600_stv090x_config.tuner_get_status    = ctl->tuner_get_status;
+
+                                        /* call the init function once to initialize
+                                           tuner's clock output divider and demod's
+                                           master clock */
+                                        if (budget->dvb_frontend->ops.init)
+                                                budget->dvb_frontend->ops.init(budget->dvb_frontend);
+
+                                        if (dvb_attach(isl6423_attach,
+                                                       budget->dvb_frontend,
+                                                       &budget->i2c_adap,
+                                                       &tt1600_isl6423_config) == NULL) {
+                                                printk(KERN_ERR "%s: No Intersil ISL6423 found!\n", __func__);
+                                                goto error_out;
+                                        }
+                                } else {
+                                        printk(KERN_ERR "%s: No STV6110(A) Silicon Tuner found!\n", __func__);
+                                        goto error_out;
+                                }
                         }
                 }
                 break;