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linux-sg2042/drivers/media/dvb-frontends/mn88473.c

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/*
* Panasonic MN88473 DVB-T/T2/C demodulator driver
*
* Copyright (C) 2014 Antti Palosaari <crope@iki.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "mn88473_priv.h"
static int mn88473_get_tune_settings(struct dvb_frontend *fe,
struct dvb_frontend_tune_settings *s)
{
s->min_delay_ms = 1000;
return 0;
}
static int mn88473_set_frontend(struct dvb_frontend *fe)
{
struct i2c_client *client = fe->demodulator_priv;
struct mn88473_dev *dev = i2c_get_clientdata(client);
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret, i;
unsigned int uitmp;
u32 if_frequency;
u8 delivery_system_val, if_val[3], *conf_val_ptr;
u8 reg_bank2_2d_val, reg_bank0_d2_val;
dev_dbg(&client->dev,
"delivery_system=%u modulation=%u frequency=%u bandwidth_hz=%u symbol_rate=%u inversion=%d stream_id=%d\n",
c->delivery_system, c->modulation, c->frequency,
c->bandwidth_hz, c->symbol_rate, c->inversion, c->stream_id);
if (!dev->active) {
ret = -EAGAIN;
goto err;
}
switch (c->delivery_system) {
case SYS_DVBT:
delivery_system_val = 0x02;
reg_bank2_2d_val = 0x23;
reg_bank0_d2_val = 0x2a;
break;
case SYS_DVBT2:
delivery_system_val = 0x03;
reg_bank2_2d_val = 0x3b;
reg_bank0_d2_val = 0x29;
break;
case SYS_DVBC_ANNEX_A:
delivery_system_val = 0x04;
reg_bank2_2d_val = 0x3b;
reg_bank0_d2_val = 0x29;
break;
default:
ret = -EINVAL;
goto err;
}
switch (c->delivery_system) {
case SYS_DVBT:
case SYS_DVBT2:
switch (c->bandwidth_hz) {
case 6000000:
conf_val_ptr = "\xe9\x55\x55\x1c\x29\x1c\x29";
break;
case 7000000:
conf_val_ptr = "\xc8\x00\x00\x17\x0a\x17\x0a";
break;
case 8000000:
conf_val_ptr = "\xaf\x00\x00\x11\xec\x11\xec";
break;
default:
ret = -EINVAL;
goto err;
}
break;
case SYS_DVBC_ANNEX_A:
conf_val_ptr = "\x10\xab\x0d\xae\x1d\x9d";
break;
default:
break;
}
/* Program tuner */
if (fe->ops.tuner_ops.set_params) {
ret = fe->ops.tuner_ops.set_params(fe);
if (ret)
goto err;
}
if (fe->ops.tuner_ops.get_if_frequency) {
ret = fe->ops.tuner_ops.get_if_frequency(fe, &if_frequency);
if (ret)
goto err;
dev_dbg(&client->dev, "get_if_frequency=%u\n", if_frequency);
} else {
ret = -EINVAL;
goto err;
}
/* Calculate IF registers */
uitmp = DIV_ROUND_CLOSEST_ULL((u64) if_frequency * 0x1000000, dev->clk);
if_val[0] = (uitmp >> 16) & 0xff;
if_val[1] = (uitmp >> 8) & 0xff;
if_val[2] = (uitmp >> 0) & 0xff;
ret = regmap_write(dev->regmap[2], 0x05, 0x00);
if (ret)
goto err;
ret = regmap_write(dev->regmap[2], 0xfb, 0x13);
if (ret)
goto err;
ret = regmap_write(dev->regmap[2], 0xef, 0x13);
if (ret)
goto err;
ret = regmap_write(dev->regmap[2], 0xf9, 0x13);
if (ret)
goto err;
ret = regmap_write(dev->regmap[2], 0x00, 0x18);
if (ret)
goto err;
ret = regmap_write(dev->regmap[2], 0x01, 0x01);
if (ret)
goto err;
ret = regmap_write(dev->regmap[2], 0x02, 0x21);
if (ret)
goto err;
ret = regmap_write(dev->regmap[2], 0x03, delivery_system_val);
if (ret)
goto err;
ret = regmap_write(dev->regmap[2], 0x0b, 0x00);
if (ret)
goto err;
for (i = 0; i < sizeof(if_val); i++) {
ret = regmap_write(dev->regmap[2], 0x10 + i, if_val[i]);
if (ret)
goto err;
}
switch (c->delivery_system) {
case SYS_DVBT:
case SYS_DVBT2:
for (i = 0; i < 7; i++) {
ret = regmap_write(dev->regmap[2], 0x13 + i,
conf_val_ptr[i]);
if (ret)
goto err;
}
break;
case SYS_DVBC_ANNEX_A:
ret = regmap_bulk_write(dev->regmap[1], 0x10, conf_val_ptr, 6);
if (ret)
goto err;
break;
default:
break;
}
ret = regmap_write(dev->regmap[2], 0x2d, reg_bank2_2d_val);
if (ret)
goto err;
ret = regmap_write(dev->regmap[2], 0x2e, 0x00);
if (ret)
goto err;
ret = regmap_write(dev->regmap[2], 0x56, 0x0d);
if (ret)
goto err;
ret = regmap_bulk_write(dev->regmap[0], 0x01,
"\xba\x13\x80\xba\x91\xdd\xe7\x28", 8);
if (ret)
goto err;
ret = regmap_write(dev->regmap[0], 0x0a, 0x1a);
if (ret)
goto err;
ret = regmap_write(dev->regmap[0], 0x13, 0x1f);
if (ret)
goto err;
ret = regmap_write(dev->regmap[0], 0x19, 0x03);
if (ret)
goto err;
ret = regmap_write(dev->regmap[0], 0x1d, 0xb0);
if (ret)
goto err;
ret = regmap_write(dev->regmap[0], 0x2a, 0x72);
if (ret)
goto err;
ret = regmap_write(dev->regmap[0], 0x2d, 0x00);
if (ret)
goto err;
ret = regmap_write(dev->regmap[0], 0x3c, 0x00);
if (ret)
goto err;
ret = regmap_write(dev->regmap[0], 0x3f, 0xf8);
if (ret)
goto err;
ret = regmap_bulk_write(dev->regmap[0], 0x40, "\xf4\x08", 2);
if (ret)
goto err;
ret = regmap_write(dev->regmap[0], 0xd2, reg_bank0_d2_val);
if (ret)
goto err;
ret = regmap_write(dev->regmap[0], 0xd4, 0x55);
if (ret)
goto err;
ret = regmap_write(dev->regmap[1], 0xbe, 0x08);
if (ret)
goto err;
ret = regmap_write(dev->regmap[0], 0xb2, 0x37);
if (ret)
goto err;
ret = regmap_write(dev->regmap[0], 0xd7, 0x04);
if (ret)
goto err;
/* PLP */
if (c->delivery_system == SYS_DVBT2) {
ret = regmap_write(dev->regmap[2], 0x36,
(c->stream_id == NO_STREAM_ID_FILTER) ? 0 :
c->stream_id );
if (ret)
goto err;
}
/* Reset FSM */
ret = regmap_write(dev->regmap[2], 0xf8, 0x9f);
if (ret)
goto err;
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int mn88473_read_status(struct dvb_frontend *fe, enum fe_status *status)
{
struct i2c_client *client = fe->demodulator_priv;
struct mn88473_dev *dev = i2c_get_clientdata(client);
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret, i, stmp;
unsigned int utmp, utmp1, utmp2;
u8 buf[5];
if (!dev->active) {
ret = -EAGAIN;
goto err;
}
/* Lock detection */
switch (c->delivery_system) {
case SYS_DVBT:
ret = regmap_read(dev->regmap[0], 0x62, &utmp);
if (ret)
goto err;
if (!(utmp & 0xa0)) {
if ((utmp & 0x0f) >= 0x09)
*status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
FE_HAS_VITERBI | FE_HAS_SYNC |
FE_HAS_LOCK;
else if ((utmp & 0x0f) >= 0x03)
*status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
} else {
*status = 0;
}
break;
case SYS_DVBT2:
ret = regmap_read(dev->regmap[2], 0x8b, &utmp);
if (ret)
goto err;
if (!(utmp & 0x40)) {
if ((utmp & 0x0f) >= 0x0d)
*status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
FE_HAS_VITERBI | FE_HAS_SYNC |
FE_HAS_LOCK;
else if ((utmp & 0x0f) >= 0x0a)
*status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
FE_HAS_VITERBI;
else if ((utmp & 0x0f) >= 0x07)
*status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
} else {
*status = 0;
}
break;
case SYS_DVBC_ANNEX_A:
ret = regmap_read(dev->regmap[1], 0x85, &utmp);
if (ret)
goto err;
if (!(utmp & 0x40)) {
ret = regmap_read(dev->regmap[1], 0x89, &utmp);
if (ret)
goto err;
if (utmp & 0x01)
*status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
FE_HAS_VITERBI | FE_HAS_SYNC |
FE_HAS_LOCK;
} else {
*status = 0;
}
break;
default:
ret = -EINVAL;
goto err;
}
/* Signal strength */
if (*status & FE_HAS_SIGNAL) {
for (i = 0; i < 2; i++) {
ret = regmap_bulk_read(dev->regmap[2], 0x86 + i,
&buf[i], 1);
if (ret)
goto err;
}
/* AGCRD[15:6] gives us a 10bit value ([5:0] are always 0) */
utmp1 = buf[0] << 8 | buf[1] << 0 | buf[0] >> 2;
dev_dbg(&client->dev, "strength=%u\n", utmp1);
c->strength.stat[0].scale = FE_SCALE_RELATIVE;
c->strength.stat[0].uvalue = utmp1;
} else {
c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
}
/* CNR */
if (*status & FE_HAS_VITERBI && c->delivery_system == SYS_DVBT) {
/* DVB-T CNR */
ret = regmap_bulk_read(dev->regmap[0], 0x8f, buf, 2);
if (ret)
goto err;
utmp = buf[0] << 8 | buf[1] << 0;
if (utmp) {
/* CNR[dB]: 10 * (log10(65536 / value) + 0.2) */
/* log10(65536) = 80807124, 0.2 = 3355443 */
stmp = div_u64(((u64)80807124 - intlog10(utmp)
+ 3355443) * 10000, 1 << 24);
dev_dbg(&client->dev, "cnr=%d value=%u\n", stmp, utmp);
} else {
stmp = 0;
}
c->cnr.stat[0].svalue = stmp;
c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
} else if (*status & FE_HAS_VITERBI &&
c->delivery_system == SYS_DVBT2) {
/* DVB-T2 CNR */
for (i = 0; i < 3; i++) {
ret = regmap_bulk_read(dev->regmap[2], 0xb7 + i,
&buf[i], 1);
if (ret)
goto err;
}
utmp = buf[1] << 8 | buf[2] << 0;
utmp1 = (buf[0] >> 2) & 0x01; /* 0=SISO, 1=MISO */
if (utmp) {
if (utmp1) {
/* CNR[dB]: 10 * (log10(16384 / value) - 0.6) */
/* log10(16384) = 70706234, 0.6 = 10066330 */
stmp = div_u64(((u64)70706234 - intlog10(utmp)
- 10066330) * 10000, 1 << 24);
dev_dbg(&client->dev, "cnr=%d value=%u MISO\n",
stmp, utmp);
} else {
/* CNR[dB]: 10 * (log10(65536 / value) + 0.2) */
/* log10(65536) = 80807124, 0.2 = 3355443 */
stmp = div_u64(((u64)80807124 - intlog10(utmp)
+ 3355443) * 10000, 1 << 24);
dev_dbg(&client->dev, "cnr=%d value=%u SISO\n",
stmp, utmp);
}
} else {
stmp = 0;
}
c->cnr.stat[0].svalue = stmp;
c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
} else if (*status & FE_HAS_VITERBI &&
c->delivery_system == SYS_DVBC_ANNEX_A) {
/* DVB-C CNR */
ret = regmap_bulk_read(dev->regmap[1], 0xa1, buf, 4);
if (ret)
goto err;
utmp1 = buf[0] << 8 | buf[1] << 0; /* signal */
utmp2 = buf[2] << 8 | buf[3] << 0; /* noise */
if (utmp1 && utmp2) {
/* CNR[dB]: 10 * log10(8 * (signal / noise)) */
/* log10(8) = 15151336 */
stmp = div_u64(((u64)15151336 + intlog10(utmp1)
- intlog10(utmp2)) * 10000, 1 << 24);
dev_dbg(&client->dev, "cnr=%d signal=%u noise=%u\n",
stmp, utmp1, utmp2);
} else {
stmp = 0;
}
c->cnr.stat[0].svalue = stmp;
c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
} else {
c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
}
/* BER */
if (*status & FE_HAS_LOCK && (c->delivery_system == SYS_DVBT ||
c->delivery_system == SYS_DVBC_ANNEX_A)) {
/* DVB-T & DVB-C BER */
ret = regmap_bulk_read(dev->regmap[0], 0x92, buf, 5);
if (ret)
goto err;
utmp1 = buf[0] << 16 | buf[1] << 8 | buf[2] << 0;
utmp2 = buf[3] << 8 | buf[4] << 0;
utmp2 = utmp2 * 8 * 204;
dev_dbg(&client->dev, "post_bit_error=%u post_bit_count=%u\n",
utmp1, utmp2);
c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
c->post_bit_error.stat[0].uvalue += utmp1;
c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
c->post_bit_count.stat[0].uvalue += utmp2;
} else {
c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
}
/* PER */
if (*status & FE_HAS_LOCK) {
ret = regmap_bulk_read(dev->regmap[0], 0xdd, buf, 4);
if (ret)
goto err;
utmp1 = buf[0] << 8 | buf[1] << 0;
utmp2 = buf[2] << 8 | buf[3] << 0;
dev_dbg(&client->dev, "block_error=%u block_count=%u\n",
utmp1, utmp2);
c->block_error.stat[0].scale = FE_SCALE_COUNTER;
c->block_error.stat[0].uvalue += utmp1;
c->block_count.stat[0].scale = FE_SCALE_COUNTER;
c->block_count.stat[0].uvalue += utmp2;
} else {
c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
}
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int mn88473_init(struct dvb_frontend *fe)
{
struct i2c_client *client = fe->demodulator_priv;
struct mn88473_dev *dev = i2c_get_clientdata(client);
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret, len, remain;
unsigned int uitmp;
const struct firmware *fw;
const char *name = MN88473_FIRMWARE;
dev_dbg(&client->dev, "\n");
/* Check if firmware is already running */
ret = regmap_read(dev->regmap[0], 0xf5, &uitmp);
if (ret)
goto err;
if (!(uitmp & 0x01))
goto warm;
/* Request the firmware, this will block and timeout */
ret = request_firmware(&fw, name, &client->dev);
if (ret) {
dev_err(&client->dev, "firmware file '%s' not found\n", name);
goto err;
}
dev_info(&client->dev, "downloading firmware from file '%s'\n", name);
ret = regmap_write(dev->regmap[0], 0xf5, 0x03);
if (ret)
goto err_release_firmware;
for (remain = fw->size; remain > 0; remain -= (dev->i2c_wr_max - 1)) {
len = min(dev->i2c_wr_max - 1, remain);
ret = regmap_bulk_write(dev->regmap[0], 0xf6,
&fw->data[fw->size - remain], len);
if (ret) {
dev_err(&client->dev, "firmware download failed %d\n",
ret);
goto err_release_firmware;
}
}
release_firmware(fw);
/* Parity check of firmware */
ret = regmap_read(dev->regmap[0], 0xf8, &uitmp);
if (ret)
goto err;
if (uitmp & 0x10) {
dev_err(&client->dev, "firmware parity check failed\n");
ret = -EINVAL;
goto err;
}
ret = regmap_write(dev->regmap[0], 0xf5, 0x00);
if (ret)
goto err;
warm:
/* TS config */
ret = regmap_write(dev->regmap[2], 0x09, 0x08);
if (ret)
goto err;
ret = regmap_write(dev->regmap[2], 0x08, 0x1d);
if (ret)
goto err;
dev->active = true;
/* init stats here to indicate which stats are supported */
c->strength.len = 1;
c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->cnr.len = 1;
c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->post_bit_error.len = 1;
c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->post_bit_count.len = 1;
c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->block_error.len = 1;
c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->block_count.len = 1;
c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
return 0;
err_release_firmware:
release_firmware(fw);
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int mn88473_sleep(struct dvb_frontend *fe)
{
struct i2c_client *client = fe->demodulator_priv;
struct mn88473_dev *dev = i2c_get_clientdata(client);
int ret;
dev_dbg(&client->dev, "\n");
dev->active = false;
ret = regmap_write(dev->regmap[2], 0x05, 0x3e);
if (ret)
goto err;
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static const struct dvb_frontend_ops mn88473_ops = {
.delsys = {SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A},
.info = {
.name = "Panasonic MN88473",
.symbol_rate_min = 1000000,
.symbol_rate_max = 7200000,
.caps = FE_CAN_FEC_1_2 |
FE_CAN_FEC_2_3 |
FE_CAN_FEC_3_4 |
FE_CAN_FEC_5_6 |
FE_CAN_FEC_7_8 |
FE_CAN_FEC_AUTO |
FE_CAN_QPSK |
FE_CAN_QAM_16 |
FE_CAN_QAM_32 |
FE_CAN_QAM_64 |
FE_CAN_QAM_128 |
FE_CAN_QAM_256 |
FE_CAN_QAM_AUTO |
FE_CAN_TRANSMISSION_MODE_AUTO |
FE_CAN_GUARD_INTERVAL_AUTO |
FE_CAN_HIERARCHY_AUTO |
FE_CAN_MUTE_TS |
FE_CAN_2G_MODULATION |
FE_CAN_MULTISTREAM
},
.get_tune_settings = mn88473_get_tune_settings,
.init = mn88473_init,
.sleep = mn88473_sleep,
.set_frontend = mn88473_set_frontend,
.read_status = mn88473_read_status,
};
static int mn88473_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct mn88473_config *config = client->dev.platform_data;
struct mn88473_dev *dev;
int ret;
unsigned int uitmp;
static const struct regmap_config regmap_config = {
.reg_bits = 8,
.val_bits = 8,
};
dev_dbg(&client->dev, "\n");
/* Caller really need to provide pointer for frontend we create */
if (config->fe == NULL) {
dev_err(&client->dev, "frontend pointer not defined\n");
ret = -EINVAL;
goto err;
}
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (dev == NULL) {
ret = -ENOMEM;
goto err;
}
if (config->i2c_wr_max)
dev->i2c_wr_max = config->i2c_wr_max;
else
dev->i2c_wr_max = ~0;
if (config->xtal)
dev->clk = config->xtal;
else
dev->clk = 25000000;
dev->client[0] = client;
dev->regmap[0] = regmap_init_i2c(dev->client[0], &regmap_config);
if (IS_ERR(dev->regmap[0])) {
ret = PTR_ERR(dev->regmap[0]);
goto err_kfree;
}
/*
* Chip has three I2C addresses for different register banks. Used
* addresses are 0x18, 0x1a and 0x1c. We register two dummy clients,
* 0x1a and 0x1c, in order to get own I2C client for each register bank.
*
* Also, register bank 2 do not support sequential I/O. Only single
* register write or read is allowed to that bank.
*/
dev->client[1] = i2c_new_dummy(client->adapter, 0x1a);
if (dev->client[1] == NULL) {
ret = -ENODEV;
dev_err(&client->dev, "I2C registration failed\n");
if (ret)
goto err_regmap_0_regmap_exit;
}
dev->regmap[1] = regmap_init_i2c(dev->client[1], &regmap_config);
if (IS_ERR(dev->regmap[1])) {
ret = PTR_ERR(dev->regmap[1]);
goto err_client_1_i2c_unregister_device;
}
i2c_set_clientdata(dev->client[1], dev);
dev->client[2] = i2c_new_dummy(client->adapter, 0x1c);
if (dev->client[2] == NULL) {
ret = -ENODEV;
dev_err(&client->dev, "2nd I2C registration failed\n");
if (ret)
goto err_regmap_1_regmap_exit;
}
dev->regmap[2] = regmap_init_i2c(dev->client[2], &regmap_config);
if (IS_ERR(dev->regmap[2])) {
ret = PTR_ERR(dev->regmap[2]);
goto err_client_2_i2c_unregister_device;
}
i2c_set_clientdata(dev->client[2], dev);
/* Check demod answers with correct chip id */
ret = regmap_read(dev->regmap[2], 0xff, &uitmp);
if (ret)
goto err_regmap_2_regmap_exit;
dev_dbg(&client->dev, "chip id=%02x\n", uitmp);
if (uitmp != 0x03) {
ret = -ENODEV;
goto err_regmap_2_regmap_exit;
}
/* Sleep because chip is active by default */
ret = regmap_write(dev->regmap[2], 0x05, 0x3e);
if (ret)
goto err_regmap_2_regmap_exit;
/* Create dvb frontend */
memcpy(&dev->frontend.ops, &mn88473_ops, sizeof(dev->frontend.ops));
dev->frontend.demodulator_priv = client;
*config->fe = &dev->frontend;
i2c_set_clientdata(client, dev);
dev_info(&client->dev, "Panasonic MN88473 successfully identified\n");
return 0;
err_regmap_2_regmap_exit:
regmap_exit(dev->regmap[2]);
err_client_2_i2c_unregister_device:
i2c_unregister_device(dev->client[2]);
err_regmap_1_regmap_exit:
regmap_exit(dev->regmap[1]);
err_client_1_i2c_unregister_device:
i2c_unregister_device(dev->client[1]);
err_regmap_0_regmap_exit:
regmap_exit(dev->regmap[0]);
err_kfree:
kfree(dev);
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int mn88473_remove(struct i2c_client *client)
{
struct mn88473_dev *dev = i2c_get_clientdata(client);
dev_dbg(&client->dev, "\n");
regmap_exit(dev->regmap[2]);
i2c_unregister_device(dev->client[2]);
regmap_exit(dev->regmap[1]);
i2c_unregister_device(dev->client[1]);
regmap_exit(dev->regmap[0]);
kfree(dev);
return 0;
}
static const struct i2c_device_id mn88473_id_table[] = {
{"mn88473", 0},
{}
};
MODULE_DEVICE_TABLE(i2c, mn88473_id_table);
static struct i2c_driver mn88473_driver = {
.driver = {
.name = "mn88473",
.suppress_bind_attrs = true,
},
.probe = mn88473_probe,
.remove = mn88473_remove,
.id_table = mn88473_id_table,
};
module_i2c_driver(mn88473_driver);
MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
MODULE_DESCRIPTION("Panasonic MN88473 DVB-T/T2/C demodulator driver");
MODULE_LICENSE("GPL");
MODULE_FIRMWARE(MN88473_FIRMWARE);
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