diff options
author | Daniel Scheller <d.scheller@gmx.net> | 2018-02-25 07:31:36 -0500 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2018-03-06 11:13:19 -0500 |
commit | ee93340e98bc9026dedf6e7483f9f092d1765582 (patch) | |
tree | 82a2d4903a86ee11a7364a489ea1a05389ce840d /drivers/media/pci | |
parent | 3262831b4a9a6c0441c94a7d1c378751f462ac92 (diff) | |
download | linux-stable-ee93340e98bc9026dedf6e7483f9f092d1765582.tar.gz linux-stable-ee93340e98bc9026dedf6e7483f9f092d1765582.tar.bz2 linux-stable-ee93340e98bc9026dedf6e7483f9f092d1765582.zip |
media: ngene: deduplicate I2C adapter evaluation
The I2C adapter evaluation (based on chan->number) is duplicated at
several places (tuner_attach_() functions, demod_attach_stv0900() and
cineS2_probe()). Clean this up by wrapping that construct in a separate
function which all users of that can pass the ngene_channel pointer and
get the correct I2C adapter from.
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/pci')
-rw-r--r-- | drivers/media/pci/ngene/ngene-cards.c | 41 |
1 files changed, 15 insertions, 26 deletions
diff --git a/drivers/media/pci/ngene/ngene-cards.c b/drivers/media/pci/ngene/ngene-cards.c index 00b100660784..dff55c7c9f86 100644 --- a/drivers/media/pci/ngene/ngene-cards.c +++ b/drivers/media/pci/ngene/ngene-cards.c @@ -118,17 +118,25 @@ static int i2c_read_reg(struct i2c_adapter *adapter, u8 adr, u8 reg, u8 *val) /* Demod/tuner attachment ***************************************************/ /****************************************************************************/ +static struct i2c_adapter *i2c_adapter_from_chan(struct ngene_channel *chan) +{ + /* tuner 1+2: i2c adapter #0, tuner 3+4: i2c adapter #1 */ + if (chan->number < 2) + return &chan->dev->channel[0].i2c_adapter; + + return &chan->dev->channel[1].i2c_adapter; +} + static int tuner_attach_stv6110(struct ngene_channel *chan) { struct device *pdev = &chan->dev->pci_dev->dev; - struct i2c_adapter *i2c; + struct i2c_adapter *i2c = i2c_adapter_from_chan(chan); struct stv090x_config *feconf = (struct stv090x_config *) chan->dev->card_info->fe_config[chan->number]; struct stv6110x_config *tunerconf = (struct stv6110x_config *) chan->dev->card_info->tuner_config[chan->number]; const struct stv6110x_devctl *ctl; - /* tuner 1+2: i2c adapter #0, tuner 3+4: i2c adapter #1 */ if (chan->number < 2) i2c = &chan->dev->channel[0].i2c_adapter; else @@ -158,16 +166,10 @@ static int tuner_attach_stv6110(struct ngene_channel *chan) static int tuner_attach_stv6111(struct ngene_channel *chan) { struct device *pdev = &chan->dev->pci_dev->dev; - struct i2c_adapter *i2c; + struct i2c_adapter *i2c = i2c_adapter_from_chan(chan); struct dvb_frontend *fe; u8 adr = 4 + ((chan->number & 1) ? 0x63 : 0x60); - /* tuner 1+2: i2c adapter #0, tuner 3+4: i2c adapter #1 */ - if (chan->number < 2) - i2c = &chan->dev->channel[0].i2c_adapter; - else - i2c = &chan->dev->channel[1].i2c_adapter; - fe = dvb_attach(stv6111_attach, chan->fe, i2c, adr); if (!fe) { fe = dvb_attach(stv6111_attach, chan->fe, i2c, adr & ~4); @@ -197,10 +199,9 @@ static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable) static int tuner_attach_tda18271(struct ngene_channel *chan) { struct device *pdev = &chan->dev->pci_dev->dev; - struct i2c_adapter *i2c; + struct i2c_adapter *i2c = i2c_adapter_from_chan(chan); struct dvb_frontend *fe; - i2c = &chan->dev->channel[0].i2c_adapter; if (chan->fe->ops.i2c_gate_ctrl) chan->fe->ops.i2c_gate_ctrl(chan->fe, 1); fe = dvb_attach(tda18271c2dd_attach, chan->fe, i2c, 0x60); @@ -240,7 +241,7 @@ static int tuner_tda18212_ping(struct ngene_channel *chan, static int tuner_attach_tda18212(struct ngene_channel *chan, u32 dmdtype) { struct device *pdev = &chan->dev->pci_dev->dev; - struct i2c_adapter *i2c; + struct i2c_adapter *i2c = i2c_adapter_from_chan(chan); struct i2c_client *client; struct tda18212_config config = { .fe = chan->fe, @@ -262,12 +263,6 @@ static int tuner_attach_tda18212(struct ngene_channel *chan, u32 dmdtype) else board_info.addr = 0x60; - /* tuner 1+2: i2c adapter #0, tuner 3+4: i2c adapter #1 */ - if (chan->number < 2) - i2c = &chan->dev->channel[0].i2c_adapter; - else - i2c = &chan->dev->channel[1].i2c_adapter; - /* * due to a hardware quirk with the I2C gate on the stv0367+tda18212 * combo, the tda18212 must be probed by reading it's id _twice_ when @@ -320,7 +315,7 @@ static int tuner_attach_probe(struct ngene_channel *chan) static int demod_attach_stv0900(struct ngene_channel *chan) { struct device *pdev = &chan->dev->pci_dev->dev; - struct i2c_adapter *i2c; + struct i2c_adapter *i2c = i2c_adapter_from_chan(chan); struct stv090x_config *feconf = (struct stv090x_config *) chan->dev->card_info->fe_config[chan->number]; @@ -620,7 +615,7 @@ static int port_has_xo2(struct i2c_adapter *i2c, u8 *type, u8 *id) static int cineS2_probe(struct ngene_channel *chan) { struct device *pdev = &chan->dev->pci_dev->dev; - struct i2c_adapter *i2c; + struct i2c_adapter *i2c = i2c_adapter_from_chan(chan); struct stv090x_config *fe_conf; u8 buf[3]; u8 xo2_type, xo2_id, xo2_demodtype; @@ -628,12 +623,6 @@ static int cineS2_probe(struct ngene_channel *chan) struct i2c_msg i2c_msg = { .flags = 0, .buf = buf }; int rc; - /* tuner 1+2: i2c adapter #0, tuner 3+4: i2c adapter #1 */ - if (chan->number < 2) - i2c = &chan->dev->channel[0].i2c_adapter; - else - i2c = &chan->dev->channel[1].i2c_adapter; - if (port_has_xo2(i2c, &xo2_type, &xo2_id)) { xo2_id >>= 2; dev_dbg(pdev, "XO2 on channel %d (type %d, id %d)\n", |