1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Infineon TUA9001 silicon tuner driver
5 * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
8 #include "tua9001_priv.h"
10 static int tua9001_init(struct dvb_frontend *fe)
12 struct tua9001_dev *dev = fe->tuner_priv;
13 struct i2c_client *client = dev->client;
15 static const struct tua9001_reg_val data[] = {
33 dev_dbg(&client->dev, "\n");
36 ret = fe->callback(client->adapter,
37 DVB_FRONTEND_COMPONENT_TUNER,
38 TUA9001_CMD_RESETN, 0);
43 for (i = 0; i < ARRAY_SIZE(data); i++) {
44 ret = regmap_write(dev->regmap, data[i].reg, data[i].val);
50 dev_dbg(&client->dev, "failed=%d\n", ret);
54 static int tua9001_sleep(struct dvb_frontend *fe)
56 struct tua9001_dev *dev = fe->tuner_priv;
57 struct i2c_client *client = dev->client;
60 dev_dbg(&client->dev, "\n");
63 ret = fe->callback(client->adapter,
64 DVB_FRONTEND_COMPONENT_TUNER,
65 TUA9001_CMD_RESETN, 1);
71 dev_dbg(&client->dev, "failed=%d\n", ret);
75 static int tua9001_set_params(struct dvb_frontend *fe)
77 struct tua9001_dev *dev = fe->tuner_priv;
78 struct i2c_client *client = dev->client;
79 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
82 struct tua9001_reg_val data[2];
85 "delivery_system=%u frequency=%u bandwidth_hz=%u\n",
86 c->delivery_system, c->frequency, c->bandwidth_hz);
88 switch (c->delivery_system) {
90 switch (c->bandwidth_hz) {
116 data[1].val = div_u64((u64) (c->frequency - 150000000) * 48, 1000000);
119 ret = fe->callback(client->adapter,
120 DVB_FRONTEND_COMPONENT_TUNER,
121 TUA9001_CMD_RXEN, 0);
126 for (i = 0; i < ARRAY_SIZE(data); i++) {
127 ret = regmap_write(dev->regmap, data[i].reg, data[i].val);
133 ret = fe->callback(client->adapter,
134 DVB_FRONTEND_COMPONENT_TUNER,
135 TUA9001_CMD_RXEN, 1);
141 dev_dbg(&client->dev, "failed=%d\n", ret);
145 static int tua9001_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
147 struct tua9001_dev *dev = fe->tuner_priv;
148 struct i2c_client *client = dev->client;
150 dev_dbg(&client->dev, "\n");
152 *frequency = 0; /* Zero-IF */
156 static const struct dvb_tuner_ops tua9001_tuner_ops = {
158 .name = "Infineon TUA9001",
159 .frequency_min_hz = 170 * MHz,
160 .frequency_max_hz = 862 * MHz,
163 .init = tua9001_init,
164 .sleep = tua9001_sleep,
165 .set_params = tua9001_set_params,
167 .get_if_frequency = tua9001_get_if_frequency,
170 static int tua9001_probe(struct i2c_client *client)
172 struct tua9001_dev *dev;
173 struct tua9001_platform_data *pdata = client->dev.platform_data;
174 struct dvb_frontend *fe = pdata->dvb_frontend;
176 static const struct regmap_config regmap_config = {
181 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
187 dev->fe = pdata->dvb_frontend;
188 dev->client = client;
189 dev->regmap = devm_regmap_init_i2c(client, ®map_config);
190 if (IS_ERR(dev->regmap)) {
191 ret = PTR_ERR(dev->regmap);
196 ret = fe->callback(client->adapter,
197 DVB_FRONTEND_COMPONENT_TUNER,
202 ret = fe->callback(client->adapter,
203 DVB_FRONTEND_COMPONENT_TUNER,
204 TUA9001_CMD_RXEN, 0);
208 ret = fe->callback(client->adapter,
209 DVB_FRONTEND_COMPONENT_TUNER,
210 TUA9001_CMD_RESETN, 1);
215 fe->tuner_priv = dev;
216 memcpy(&fe->ops.tuner_ops, &tua9001_tuner_ops,
217 sizeof(struct dvb_tuner_ops));
218 i2c_set_clientdata(client, dev);
220 dev_info(&client->dev, "Infineon TUA9001 successfully attached\n");
225 dev_dbg(&client->dev, "failed=%d\n", ret);
229 static void tua9001_remove(struct i2c_client *client)
231 struct tua9001_dev *dev = i2c_get_clientdata(client);
232 struct dvb_frontend *fe = dev->fe;
235 dev_dbg(&client->dev, "\n");
238 ret = fe->callback(client->adapter,
239 DVB_FRONTEND_COMPONENT_TUNER,
242 dev_err(&client->dev, "Tuner disable failed (%pe)\n", ERR_PTR(ret));
247 static const struct i2c_device_id tua9001_id_table[] = {
251 MODULE_DEVICE_TABLE(i2c, tua9001_id_table);
253 static struct i2c_driver tua9001_driver = {
256 .suppress_bind_attrs = true,
258 .probe = tua9001_probe,
259 .remove = tua9001_remove,
260 .id_table = tua9001_id_table,
263 module_i2c_driver(tua9001_driver);
265 MODULE_DESCRIPTION("Infineon TUA9001 silicon tuner driver");
266 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
267 MODULE_LICENSE("GPL");