The driver was reporting an incorrect mode, when mode 2
is selected.
While testing it, noticed that neither mode 1 or guard
interval 1/32 is supported by this device. Document it,
and ensure that it will report _AUTO when it doesn't lock,
in order to not report a wrong detection to userspace.
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx>
---
drivers/media/dvb-frontends/dib0090.c | 6 +++++-
drivers/media/dvb-frontends/mb86a20s.c | 9 +++++----
drivers/media/usb/dvb-usb/dib0700_devices.c | 3 +++
3 files changed, 13 insertions(+), 5 deletions(-)
diff --git a/drivers/media/dvb-frontends/dib0090.c b/drivers/media/dvb-frontends/dib0090.c
index 68e2af2650d3..27d5c5cd439c 100644
--- a/drivers/media/dvb-frontends/dib0090.c
+++ b/drivers/media/dvb-frontends/dib0090.c
@@ -24,6 +24,8 @@
*
*/
+#define DEBUG_AGC
+
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/i2c.h>
@@ -1199,11 +1201,13 @@ int dib0090_gain_control(struct dvb_frontend *fe)
state->rf_gain_limit = state->rf_ramp[0] << WBD_ALPHA;
state->current_gain = ((state->rf_ramp[0] + state->bb_ramp[0]) / 2) << GAIN_ALPHA;
+dprintk("Current gain: %d\n", state->current_gain);
+
*tune_state = CT_AGC_STEP_0;
} else if (!state->agc_freeze) {
s16 wbd = 0, i, cnt;
- int adc;
+ int adc = 0;
wbd_val = dib0090_get_slow_adc_val(state);
if (*tune_state == CT_AGC_STEP_0)
diff --git a/drivers/media/dvb-frontends/mb86a20s.c b/drivers/media/dvb-frontends/mb86a20s.c
index 227a420f7069..b931179c70a4 100644
--- a/drivers/media/dvb-frontends/mb86a20s.c
+++ b/drivers/media/dvb-frontends/mb86a20s.c
@@ -711,11 +711,10 @@ static int mb86a20s_get_frontend(struct dvb_frontend *fe)
rc = mb86a20s_readreg(state, 0x07);
if (rc < 0)
return rc;
+ c->transmission_mode = TRANSMISSION_MODE_AUTO;
if ((rc & 0x60) == 0x20) {
- switch (rc & 0x0c >> 2) {
- case 0:
- c->transmission_mode = TRANSMISSION_MODE_2K;
- break;
+ /* Only modes 2 and 3 are supported */
+ switch ((rc >> 2) & 0x03) {
case 1:
c->transmission_mode = TRANSMISSION_MODE_4K;
break;
@@ -724,7 +723,9 @@ static int mb86a20s_get_frontend(struct dvb_frontend *fe)
break;
}
}
+ c->guard_interval = GUARD_INTERVAL_AUTO;
if (!(rc & 0x10)) {
+ /* Guard interval 1/32 is not supported */
switch (rc & 0x3) {
case 0:
c->guard_interval = GUARD_INTERVAL_1_4;
diff --git a/drivers/media/usb/dvb-usb/dib0700_devices.c b/drivers/media/usb/dvb-usb/dib0700_devices.c
index 501947eaacfe..cad359fcd690 100644
--- a/drivers/media/usb/dvb-usb/dib0700_devices.c
+++ b/drivers/media/usb/dvb-usb/dib0700_devices.c
@@ -1645,6 +1645,8 @@ static int dib8096_set_param_override(struct dvb_frontend *fe)
int ret = 0;
enum frontend_tune_state tune_state = CT_SHUTDOWN;
+printk("%s called.\n", __func__);
+
switch (band) {
default:
deb_info("Warning : Rf frequency (%iHz) is not in the supported range, using VHF switch ", fe->dtv_property_cache.frequency);
@@ -1714,6 +1716,7 @@ static int dib8096_set_param_override(struct dvb_frontend *fe)
} else {
/* for everything else than CBAND we are using standard AGC */
deb_info("not tuning in CBAND - standard AGC startup\n");
+printk("%s: calling dib0090_pwm_gain_reset\n", __func__);
dib0090_pwm_gain_reset(fe);
}
--
1.9.3
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