diff options
| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-07-09 21:59:33 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-07-27 17:55:49 -0300 |
| commit | f1fe1b75d64046b693075045fe9fc5cafed9c981 (patch) | |
| tree | 26669633735b8596e5ce88d27d27a2c7f4b3e42d /drivers/media/dvb | |
| parent | bbc70e647b04dc3df1c879089a4f6b633c1952c9 (diff) | |
[media] drxk: Allow to disable I2C Bridge control switch
On em28xx, tda18271C2 is accessible when the i2c port
is not touched. Touching on it breaks the driver.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb')
| -rw-r--r-- | drivers/media/dvb/frontends/drxk.h | 1 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/drxk_hard.c | 3 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/drxk_hard.h | 1 |
3 files changed, 5 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/drxk.h b/drivers/media/dvb/frontends/drxk.h index dd54512df2a..9c99f31369c 100644 --- a/drivers/media/dvb/frontends/drxk.h +++ b/drivers/media/dvb/frontends/drxk.h @@ -7,6 +7,7 @@ struct drxk_config { u8 adr; u32 single_master : 1; + u32 no_i2c_bridge : 1; const char *microcode_name; }; diff --git a/drivers/media/dvb/frontends/drxk_hard.c b/drivers/media/dvb/frontends/drxk_hard.c index adb454a8eb7..523352670e7 100644 --- a/drivers/media/dvb/frontends/drxk_hard.c +++ b/drivers/media/dvb/frontends/drxk_hard.c @@ -2784,6 +2784,8 @@ static int ConfigureI2CBridge(struct drxk_state *state, bool bEnableBridge) if (state->m_DrxkState == DRXK_POWERED_DOWN) return -1; + if (state->no_i2c_bridge) + return 0; do { status = write16(state, SIO_HI_RA_RAM_PAR_1__A, SIO_HI_RA_RAM_PAR_1_PAR1_SEC_KEY); if (status < 0) @@ -6360,6 +6362,7 @@ struct dvb_frontend *drxk_attach(const struct drxk_config *config, state->demod_address = adr; state->single_master = config->single_master; state->microcode_name = config->microcode_name; + state->no_i2c_bridge = config->no_i2c_bridge; mutex_init(&state->mutex); mutex_init(&state->ctlock); diff --git a/drivers/media/dvb/frontends/drxk_hard.h b/drivers/media/dvb/frontends/drxk_hard.h index 8cdadce2646..b042755188c 100644 --- a/drivers/media/dvb/frontends/drxk_hard.h +++ b/drivers/media/dvb/frontends/drxk_hard.h @@ -330,6 +330,7 @@ struct drxk_state { /* Configurable parameters at the driver */ u32 single_master : 1; /* Use single master i2c mode */ + u32 no_i2c_bridge : 1; /* Tuner is not on port 1, don't use I2C bridge */ const char *microcode_name; }; |