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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>
This commit is contained in:
Daniel Scheller 2018-02-25 07:31:36 -05:00 committed by Mauro Carvalho Chehab
parent 3262831b4a
commit ee93340e98
1 changed files with 15 additions and 26 deletions
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41
drivers/media/pci/ngene/ngene-cards.c
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@ -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",