V4L/DVB (10972): zl10353: i2c_gate_ctrl bug fix

zl10353 i2c-gate was always closed and due to that devices having tuner
behind i2c-gate were broken. Add module configuration which allows disabling
i2c-gate only when really needed.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

2 files changed, 4 insertions, 1 deletions

diff --git a/drivers/media/dvb/frontends/zl10353.c b/drivers/media/dvb/frontends/zl10353.c
index 170720b02815..b150ed306696 100644
--- a/drivers/media/dvb/frontends/zl10353.c
+++ b/drivers/media/dvb/frontends/zl10353.c
@@ -590,7 +590,7 @@ static int zl10353_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
         struct zl10353_state *state = fe->demodulator_priv;
         u8 val = 0x0a;
 
-        if (state->config.no_tuner) {
+        if (state->config.disable_i2c_gate_ctrl) {
                 /* No tuner attached to the internal I2C bus */
                 /* If set enable I2C bridge, the main I2C bus stopped hardly */
                 return 0;
diff --git a/drivers/media/dvb/frontends/zl10353.h b/drivers/media/dvb/frontends/zl10353.h
index fdbb88ff75fe..2287bac46243 100644
--- a/drivers/media/dvb/frontends/zl10353.h
+++ b/drivers/media/dvb/frontends/zl10353.h
@@ -38,6 +38,9 @@ struct zl10353_config
 
         /* set if parallel ts output is required */
         int parallel_ts;
+
+        /* set if i2c_gate_ctrl disable is required */
+        u8 disable_i2c_gate_ctrl:1;
 };
 
 #if defined(CONFIG_DVB_ZL10353) || (defined(CONFIG_DVB_ZL10353_MODULE) && defined(MODULE))