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path: root/drivers/media/dvb/frontends/cxd2820r_core.c
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Diffstat (limited to 'drivers/media/dvb/frontends/cxd2820r_core.c')
-rw-r--r--drivers/media/dvb/frontends/cxd2820r_core.c74
1 files changed, 14 insertions, 60 deletions
diff --git a/drivers/media/dvb/frontends/cxd2820r_core.c b/drivers/media/dvb/frontends/cxd2820r_core.c
index 0779f69..036480f 100644
--- a/drivers/media/dvb/frontends/cxd2820r_core.c
+++ b/drivers/media/dvb/frontends/cxd2820r_core.c
@@ -314,6 +314,8 @@ static int cxd2820r_set_frontend(struct dvb_frontend *fe,
} else if (c->delivery_system == SYS_DVBT2) {
/* DVB-T => DVB-T2 */
ret = cxd2820r_sleep_t(fe);
+ if (ret)
+ break;
ret = cxd2820r_set_frontend_t2(fe, p);
}
break;
@@ -324,6 +326,8 @@ static int cxd2820r_set_frontend(struct dvb_frontend *fe,
} else if (c->delivery_system == SYS_DVBT) {
/* DVB-T2 => DVB-T */
ret = cxd2820r_sleep_t2(fe);
+ if (ret)
+ break;
ret = cxd2820r_set_frontend_t(fe, p);
}
break;
@@ -723,62 +727,22 @@ static void cxd2820r_release(struct dvb_frontend *fe)
struct cxd2820r_priv *priv = fe->demodulator_priv;
dbg("%s", __func__);
- if (fe->ops.info.type == FE_OFDM) {
- i2c_del_adapter(&priv->tuner_i2c_adapter);
+ if (fe->ops.info.type == FE_OFDM)
kfree(priv);
- }
return;
}
-static u32 cxd2820r_tuner_i2c_func(struct i2c_adapter *adapter)
-{
- return I2C_FUNC_I2C;
-}
-
-static int cxd2820r_tuner_i2c_xfer(struct i2c_adapter *i2c_adap,
- struct i2c_msg msg[], int num)
-{
- struct cxd2820r_priv *priv = i2c_get_adapdata(i2c_adap);
- u8 obuf[msg[0].len + 2];
- struct i2c_msg msg2[2] = {
- {
- .addr = priv->cfg.i2c_address,
- .flags = 0,
- .len = sizeof(obuf),
- .buf = obuf,
- }, {
- .addr = priv->cfg.i2c_address,
- .flags = I2C_M_RD,
- .len = msg[1].len,
- .buf = msg[1].buf,
- }
- };
-
- obuf[0] = 0x09;
- obuf[1] = (msg[0].addr << 1);
- if (num == 2) { /* I2C read */
- obuf[1] = (msg[0].addr << 1) | I2C_M_RD; /* I2C RD flag */
- msg2[0].len = sizeof(obuf) - 1; /* maybe HW bug ? */
- }
- memcpy(&obuf[2], msg[0].buf, msg[0].len);
-
- return i2c_transfer(priv->i2c, msg2, num);
-}
-
-static struct i2c_algorithm cxd2820r_tuner_i2c_algo = {
- .master_xfer = cxd2820r_tuner_i2c_xfer,
- .functionality = cxd2820r_tuner_i2c_func,
-};
-
-struct i2c_adapter *cxd2820r_get_tuner_i2c_adapter(struct dvb_frontend *fe)
+static int cxd2820r_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
- return &priv->tuner_i2c_adapter;
+ dbg("%s: %d", __func__, enable);
+
+ /* Bit 0 of reg 0xdb in bank 0x00 controls I2C repeater */
+ return cxd2820r_wr_reg_mask(priv, 0xdb, enable ? 1 : 0, 0x1);
}
-EXPORT_SYMBOL(cxd2820r_get_tuner_i2c_adapter);
-static struct dvb_frontend_ops cxd2820r_ops[2];
+static const struct dvb_frontend_ops cxd2820r_ops[2];
struct dvb_frontend *cxd2820r_attach(const struct cxd2820r_config *cfg,
struct i2c_adapter *i2c, struct dvb_frontend *fe)
@@ -817,18 +781,6 @@ struct dvb_frontend *cxd2820r_attach(const struct cxd2820r_config *cfg,
priv->fe[0].demodulator_priv = priv;
priv->fe[1].demodulator_priv = priv;
- /* create tuner i2c adapter */
- strlcpy(priv->tuner_i2c_adapter.name,
- "CXD2820R tuner I2C adapter",
- sizeof(priv->tuner_i2c_adapter.name));
- priv->tuner_i2c_adapter.algo = &cxd2820r_tuner_i2c_algo;
- priv->tuner_i2c_adapter.algo_data = NULL;
- i2c_set_adapdata(&priv->tuner_i2c_adapter, priv);
- if (i2c_add_adapter(&priv->tuner_i2c_adapter) < 0) {
- err("tuner I2C bus could not be initialized");
- goto error;
- }
-
return &priv->fe[0];
} else {
@@ -844,7 +796,7 @@ error:
}
EXPORT_SYMBOL(cxd2820r_attach);
-static struct dvb_frontend_ops cxd2820r_ops[2] = {
+static const struct dvb_frontend_ops cxd2820r_ops[2] = {
{
/* DVB-T/T2 */
.info = {
@@ -869,6 +821,7 @@ static struct dvb_frontend_ops cxd2820r_ops[2] = {
.sleep = cxd2820r_sleep,
.get_tune_settings = cxd2820r_get_tune_settings,
+ .i2c_gate_ctrl = cxd2820r_i2c_gate_ctrl,
.get_frontend = cxd2820r_get_frontend,
@@ -897,6 +850,7 @@ static struct dvb_frontend_ops cxd2820r_ops[2] = {
.sleep = cxd2820r_sleep,
.get_tune_settings = cxd2820r_get_tune_settings,
+ .i2c_gate_ctrl = cxd2820r_i2c_gate_ctrl,
.set_frontend = cxd2820r_set_frontend,
.get_frontend = cxd2820r_get_frontend,