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| author | Antti Palosaari <crope@iki.fi> | 2008-09-15 20:34:31 +0300 |
|---|---|---|
| committer | Antti Palosaari <crope@iki.fi> | 2008-09-15 20:34:31 +0300 |
| commit | e5e8c42dc618a8b8774513f962f9f38593a5f767 (patch) | |
| tree | ca2a7432fb2ddebfaf390f95f214ab8acc19c772 | |
| parent | 7f7b79ee2e731d645dd2cf35a27ae3364cf85306 (diff) | |
| download | mediapointer-dvb-s2-e5e8c42dc618a8b8774513f962f9f38593a5f767.tar.gz mediapointer-dvb-s2-e5e8c42dc618a8b8774513f962f9f38593a5f767.tar.bz2 | |
mt2060: implement I2C-gate control
From: Antti Palosaari <crope@iki.fi>
- implement I2C-gate control
Priority: normal
Signed-off-by: Antti Palosaari <crope@iki.fi>
| -rw-r--r-- | linux/drivers/media/common/tuners/mt2060.c | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/linux/drivers/media/common/tuners/mt2060.c b/linux/drivers/media/common/tuners/mt2060.c index 355817754..d1962bb24 100644 --- a/linux/drivers/media/common/tuners/mt2060.c +++ b/linux/drivers/media/common/tuners/mt2060.c @@ -177,6 +177,9 @@ static int mt2060_set_params(struct dvb_frontend *fe, struct dvb_frontend_parame b[0] = REG_LO1B1; b[1] = 0xFF; + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c_gate */ + mt2060_writeregs(priv,b,2); freq = params->frequency / 1000; // Hz -> kHz @@ -240,6 +243,9 @@ static int mt2060_set_params(struct dvb_frontend *fe, struct dvb_frontend_parame i++; } while (i<10); + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c_gate */ + return ret; } @@ -303,13 +309,35 @@ static int mt2060_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) static int mt2060_init(struct dvb_frontend *fe) { struct mt2060_priv *priv = fe->tuner_priv; - return mt2060_writereg(priv, REG_VGAG, (priv->cfg->clock_out << 6) | 0x33); + int ret; + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c_gate */ + + ret = mt2060_writereg(priv, REG_VGAG, + (priv->cfg->clock_out << 6) | 0x33); + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c_gate */ + + return ret; } static int mt2060_sleep(struct dvb_frontend *fe) { struct mt2060_priv *priv = fe->tuner_priv; - return mt2060_writereg(priv, REG_VGAG, (priv->cfg->clock_out << 6) | 0x30); + int ret; + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c_gate */ + + ret = mt2060_writereg(priv, REG_VGAG, + (priv->cfg->clock_out << 6) | 0x30); + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c_gate */ + + return ret; } static int mt2060_release(struct dvb_frontend *fe) @@ -351,6 +379,9 @@ struct dvb_frontend * mt2060_attach(struct dvb_frontend *fe, struct i2c_adapter priv->i2c = i2c; priv->if1_freq = if1; + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c_gate */ + if (mt2060_readreg(priv,REG_PART_REV,&id) != 0) { kfree(priv); return NULL; @@ -367,6 +398,9 @@ struct dvb_frontend * mt2060_attach(struct dvb_frontend *fe, struct i2c_adapter mt2060_calibrate(priv); + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c_gate */ + return fe; } EXPORT_SYMBOL(mt2060_attach); |