summaryrefslogtreecommitdiff
path: root/drivers/media/dvb-frontends/tda10071.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/dvb-frontends/tda10071.c')
-rw-r--r--drivers/media/dvb-frontends/tda10071.c95
1 files changed, 95 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/tda10071.c b/drivers/media/dvb-frontends/tda10071.c
index 4a19b85995f1..31328540e5c4 100644
--- a/drivers/media/dvb-frontends/tda10071.c
+++ b/drivers/media/dvb-frontends/tda10071.c
@@ -1313,6 +1313,101 @@ static struct dvb_frontend_ops tda10071_ops = {
.set_voltage = tda10071_set_voltage,
};
+static struct dvb_frontend *tda10071_get_dvb_frontend(struct i2c_client *client)
+{
+ struct tda10071_priv *dev = i2c_get_clientdata(client);
+
+ dev_dbg(&client->dev, "\n");
+
+ return &dev->fe;
+}
+
+static int tda10071_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct tda10071_priv *dev;
+ struct tda10071_platform_data *pdata = client->dev.platform_data;
+ int ret;
+ u8 u8tmp;
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ dev->client = client;
+ dev->i2c = client->adapter;
+ dev->cfg.demod_i2c_addr = client->addr;
+ dev->cfg.i2c_wr_max = pdata->i2c_wr_max;
+ dev->cfg.ts_mode = pdata->ts_mode;
+ dev->cfg.spec_inv = pdata->spec_inv;
+ dev->cfg.xtal = pdata->clk;
+ dev->cfg.pll_multiplier = pdata->pll_multiplier;
+ dev->cfg.tuner_i2c_addr = pdata->tuner_i2c_addr;
+
+ /* chip ID */
+ ret = tda10071_rd_reg(dev, 0xff, &u8tmp);
+ if (ret || u8tmp != 0x0f)
+ goto err_kfree;
+
+ /* chip type */
+ ret = tda10071_rd_reg(dev, 0xdd, &u8tmp);
+ if (ret || u8tmp != 0x00)
+ goto err_kfree;
+
+ /* chip version */
+ ret = tda10071_rd_reg(dev, 0xfe, &u8tmp);
+ if (ret || u8tmp != 0x01)
+ goto err_kfree;
+
+ /* create dvb_frontend */
+ memcpy(&dev->fe.ops, &tda10071_ops, sizeof(struct dvb_frontend_ops));
+ dev->fe.ops.release = NULL;
+ dev->fe.demodulator_priv = dev;
+ i2c_set_clientdata(client, dev);
+
+ /* setup callbacks */
+ pdata->get_dvb_frontend = tda10071_get_dvb_frontend;
+
+ dev_info(&client->dev, "NXP TDA10071 successfully identified\n");
+ return 0;
+err_kfree:
+ kfree(dev);
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ return ret;
+}
+
+static int tda10071_remove(struct i2c_client *client)
+{
+ struct tda10071_dev *dev = i2c_get_clientdata(client);
+
+ dev_dbg(&client->dev, "\n");
+
+ kfree(dev);
+ return 0;
+}
+
+static const struct i2c_device_id tda10071_id_table[] = {
+ {"tda10071_cx24118", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, tda10071_id_table);
+
+static struct i2c_driver tda10071_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "tda10071",
+ .suppress_bind_attrs = true,
+ },
+ .probe = tda10071_probe,
+ .remove = tda10071_remove,
+ .id_table = tda10071_id_table,
+};
+
+module_i2c_driver(tda10071_driver);
+
MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
MODULE_DESCRIPTION("NXP TDA10071 DVB-S/S2 demodulator driver");
MODULE_LICENSE("GPL");