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273 lines
5.6 KiB
273 lines
5.6 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Infineon TUA9001 silicon tuner driver |
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* |
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* Copyright (C) 2009 Antti Palosaari <[email protected]> |
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*/ |
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#include "tua9001_priv.h" |
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static int tua9001_init(struct dvb_frontend *fe) |
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{ |
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struct tua9001_dev *dev = fe->tuner_priv; |
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struct i2c_client *client = dev->client; |
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int ret, i; |
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static const struct tua9001_reg_val data[] = { |
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{0x1e, 0x6512}, |
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{0x25, 0xb888}, |
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{0x39, 0x5460}, |
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{0x3b, 0x00c0}, |
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{0x3a, 0xf000}, |
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{0x08, 0x0000}, |
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{0x32, 0x0030}, |
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{0x41, 0x703a}, |
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{0x40, 0x1c78}, |
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{0x2c, 0x1c00}, |
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{0x36, 0xc013}, |
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{0x37, 0x6f18}, |
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{0x27, 0x0008}, |
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{0x2a, 0x0001}, |
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{0x34, 0x0a40}, |
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}; |
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dev_dbg(&client->dev, "\n"); |
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if (fe->callback) { |
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ret = fe->callback(client->adapter, |
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DVB_FRONTEND_COMPONENT_TUNER, |
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TUA9001_CMD_RESETN, 0); |
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if (ret) |
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goto err; |
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} |
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for (i = 0; i < ARRAY_SIZE(data); i++) { |
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ret = regmap_write(dev->regmap, data[i].reg, data[i].val); |
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if (ret) |
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goto err; |
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} |
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return 0; |
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err: |
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dev_dbg(&client->dev, "failed=%d\n", ret); |
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return ret; |
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} |
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static int tua9001_sleep(struct dvb_frontend *fe) |
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{ |
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struct tua9001_dev *dev = fe->tuner_priv; |
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struct i2c_client *client = dev->client; |
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int ret; |
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dev_dbg(&client->dev, "\n"); |
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if (fe->callback) { |
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ret = fe->callback(client->adapter, |
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DVB_FRONTEND_COMPONENT_TUNER, |
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TUA9001_CMD_RESETN, 1); |
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if (ret) |
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goto err; |
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} |
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return 0; |
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err: |
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dev_dbg(&client->dev, "failed=%d\n", ret); |
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return ret; |
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} |
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static int tua9001_set_params(struct dvb_frontend *fe) |
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{ |
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struct tua9001_dev *dev = fe->tuner_priv; |
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struct i2c_client *client = dev->client; |
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struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
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int ret, i; |
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u16 val; |
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struct tua9001_reg_val data[2]; |
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dev_dbg(&client->dev, |
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"delivery_system=%u frequency=%u bandwidth_hz=%u\n", |
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c->delivery_system, c->frequency, c->bandwidth_hz); |
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switch (c->delivery_system) { |
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case SYS_DVBT: |
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switch (c->bandwidth_hz) { |
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case 8000000: |
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val = 0x0000; |
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break; |
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case 7000000: |
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val = 0x1000; |
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break; |
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case 6000000: |
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val = 0x2000; |
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break; |
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case 5000000: |
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val = 0x3000; |
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break; |
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default: |
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ret = -EINVAL; |
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goto err; |
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} |
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break; |
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default: |
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ret = -EINVAL; |
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goto err; |
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} |
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data[0].reg = 0x04; |
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data[0].val = val; |
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data[1].reg = 0x1f; |
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data[1].val = div_u64((u64) (c->frequency - 150000000) * 48, 1000000); |
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if (fe->callback) { |
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ret = fe->callback(client->adapter, |
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DVB_FRONTEND_COMPONENT_TUNER, |
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TUA9001_CMD_RXEN, 0); |
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if (ret) |
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goto err; |
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} |
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for (i = 0; i < ARRAY_SIZE(data); i++) { |
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ret = regmap_write(dev->regmap, data[i].reg, data[i].val); |
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if (ret) |
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goto err; |
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} |
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if (fe->callback) { |
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ret = fe->callback(client->adapter, |
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DVB_FRONTEND_COMPONENT_TUNER, |
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TUA9001_CMD_RXEN, 1); |
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if (ret) |
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goto err; |
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} |
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return 0; |
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err: |
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dev_dbg(&client->dev, "failed=%d\n", ret); |
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return ret; |
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} |
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static int tua9001_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) |
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{ |
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struct tua9001_dev *dev = fe->tuner_priv; |
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struct i2c_client *client = dev->client; |
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dev_dbg(&client->dev, "\n"); |
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*frequency = 0; /* Zero-IF */ |
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return 0; |
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} |
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static const struct dvb_tuner_ops tua9001_tuner_ops = { |
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.info = { |
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.name = "Infineon TUA9001", |
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.frequency_min_hz = 170 * MHz, |
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.frequency_max_hz = 862 * MHz, |
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}, |
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.init = tua9001_init, |
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.sleep = tua9001_sleep, |
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.set_params = tua9001_set_params, |
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.get_if_frequency = tua9001_get_if_frequency, |
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}; |
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static int tua9001_probe(struct i2c_client *client, |
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const struct i2c_device_id *id) |
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{ |
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struct tua9001_dev *dev; |
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struct tua9001_platform_data *pdata = client->dev.platform_data; |
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struct dvb_frontend *fe = pdata->dvb_frontend; |
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int ret; |
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static const struct regmap_config regmap_config = { |
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.reg_bits = 8, |
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.val_bits = 16, |
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}; |
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dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
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if (!dev) { |
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ret = -ENOMEM; |
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goto err; |
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} |
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dev->fe = pdata->dvb_frontend; |
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dev->client = client; |
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dev->regmap = devm_regmap_init_i2c(client, ®map_config); |
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if (IS_ERR(dev->regmap)) { |
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ret = PTR_ERR(dev->regmap); |
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goto err_kfree; |
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} |
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if (fe->callback) { |
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ret = fe->callback(client->adapter, |
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DVB_FRONTEND_COMPONENT_TUNER, |
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TUA9001_CMD_CEN, 1); |
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if (ret) |
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goto err_kfree; |
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ret = fe->callback(client->adapter, |
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DVB_FRONTEND_COMPONENT_TUNER, |
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TUA9001_CMD_RXEN, 0); |
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if (ret) |
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goto err_kfree; |
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ret = fe->callback(client->adapter, |
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DVB_FRONTEND_COMPONENT_TUNER, |
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TUA9001_CMD_RESETN, 1); |
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if (ret) |
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goto err_kfree; |
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} |
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fe->tuner_priv = dev; |
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memcpy(&fe->ops.tuner_ops, &tua9001_tuner_ops, |
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sizeof(struct dvb_tuner_ops)); |
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i2c_set_clientdata(client, dev); |
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dev_info(&client->dev, "Infineon TUA9001 successfully attached\n"); |
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return 0; |
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err_kfree: |
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kfree(dev); |
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err: |
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dev_dbg(&client->dev, "failed=%d\n", ret); |
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return ret; |
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} |
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static int tua9001_remove(struct i2c_client *client) |
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{ |
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struct tua9001_dev *dev = i2c_get_clientdata(client); |
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struct dvb_frontend *fe = dev->fe; |
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int ret; |
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dev_dbg(&client->dev, "\n"); |
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if (fe->callback) { |
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ret = fe->callback(client->adapter, |
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DVB_FRONTEND_COMPONENT_TUNER, |
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TUA9001_CMD_CEN, 0); |
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if (ret) |
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goto err_kfree; |
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} |
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kfree(dev); |
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return 0; |
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err_kfree: |
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kfree(dev); |
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dev_dbg(&client->dev, "failed=%d\n", ret); |
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return ret; |
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} |
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static const struct i2c_device_id tua9001_id_table[] = { |
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{"tua9001", 0}, |
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{} |
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}; |
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MODULE_DEVICE_TABLE(i2c, tua9001_id_table); |
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static struct i2c_driver tua9001_driver = { |
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.driver = { |
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.name = "tua9001", |
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.suppress_bind_attrs = true, |
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}, |
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.probe = tua9001_probe, |
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.remove = tua9001_remove, |
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.id_table = tua9001_id_table, |
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}; |
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module_i2c_driver(tua9001_driver); |
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MODULE_DESCRIPTION("Infineon TUA9001 silicon tuner driver"); |
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MODULE_AUTHOR("Antti Palosaari <[email protected]>"); |
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MODULE_LICENSE("GPL");
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