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[media] mt2060: add i2c bindings 

Add proper i2c driver model bindings.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
hifive-unleashed-5.1
Antti Palosaari 2015-07-26 18:45:05 -03:00 committed by Mauro Carvalho Chehab
parent f57e961873
commit 59e8b7aa93
3 changed files with 105 additions and 0 deletions
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83
drivers/media/tuners/mt2060.c
View File

@ -392,6 +392,89 @@ struct dvb_frontend * mt2060_attach(struct dvb_frontend *fe, struct i2c_adapter
}
EXPORT_SYMBOL(mt2060_attach);
static int mt2060_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct mt2060_platform_data *pdata = client->dev.platform_data;
struct dvb_frontend *fe;
struct mt2060_priv *dev;
int ret;
u8 chip_id;
dev_dbg(&client->dev, "\n");
if (!pdata) {
dev_err(&client->dev, "Cannot proceed without platform data\n");
ret = -EINVAL;
goto err;
}
dev = devm_kzalloc(&client->dev, sizeof(*dev), GFP_KERNEL);
if (!dev) {
ret = -ENOMEM;
goto err;
}
fe = pdata->dvb_frontend;
dev->config.i2c_address = client->addr;
dev->config.clock_out = pdata->clock_out;
dev->cfg = &dev->config;
dev->i2c = client->adapter;
dev->if1_freq = pdata->if1 ? pdata->if1 : 1220;
dev->client = client;
ret = mt2060_readreg(dev, REG_PART_REV, &chip_id);
if (ret) {
ret = -ENODEV;
goto err;
}
dev_dbg(&client->dev, "chip id=%02x\n", chip_id);
if (chip_id != PART_REV) {
ret = -ENODEV;
goto err;
}
dev_info(&client->dev, "Microtune MT2060 successfully identified\n");
memcpy(&fe->ops.tuner_ops, &mt2060_tuner_ops, sizeof(fe->ops.tuner_ops));
fe->ops.tuner_ops.release = NULL;
fe->tuner_priv = dev;
i2c_set_clientdata(client, dev);
mt2060_calibrate(dev);
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int mt2060_remove(struct i2c_client *client)
{
dev_dbg(&client->dev, "\n");
return 0;
}
static const struct i2c_device_id mt2060_id_table[] = {
{"mt2060", 0},
{}
};
MODULE_DEVICE_TABLE(i2c, mt2060_id_table);
static struct i2c_driver mt2060_driver = {
.driver = {
.name = "mt2060",
.suppress_bind_attrs = true,
},
.probe = mt2060_probe,
.remove = mt2060_remove,
.id_table = mt2060_id_table,
};
module_i2c_driver(mt2060_driver);
MODULE_AUTHOR("Olivier DANET");
MODULE_DESCRIPTION("Microtune MT2060 silicon tuner driver");
MODULE_LICENSE("GPL");

20
drivers/media/tuners/mt2060.h
View File

@ -21,6 +21,26 @@
struct dvb_frontend;
struct i2c_adapter;
/*
* I2C address
* 0x60, ...
*/
/**
* struct mt2060_platform_data - Platform data for the mt2060 driver
* @clock_out: Clock output setting. 0 = off, 1 = CLK/4, 2 = CLK/2, 3 = CLK/1.
* @if1: First IF used [MHz]. 0 defaults to 1220.
* @dvb_frontend: DVB frontend.
*/
struct mt2060_platform_data {
u8 clock_out;
u16 if1;
struct dvb_frontend *dvb_frontend;
};
/* configuration struct for mt2060_attach() */
struct mt2060_config {
u8 i2c_address;
u8 clock_out; /* 0 = off, 1 = CLK/4, 2 = CLK/2, 3 = CLK/1 */

2
drivers/media/tuners/mt2060_priv.h
View File

@ -91,6 +91,8 @@
struct mt2060_priv {
struct mt2060_config *cfg;
struct i2c_adapter *i2c;
struct i2c_client *client;
struct mt2060_config config;
u32 frequency;
u16 if1_freq;