Commit f8b9b871 authored by Antti Palosaari's avatar Antti Palosaari Committed by Mauro Carvalho Chehab
Browse files

[media] e4000: various small changes 



* Rename device state from 's' to 'dev'.
* Move single include to driver private header.
* Change error handling type of each function to one I tend use
nowadays.
* Remove dummy register write from init. Even Windows driver does this
multiple times remove it as I have never seen any I2C errors.
* Define I2C client pointer for each function and use it.
* Do not clean tuner ops during driver remove - not needed.
* Disable sysfs device bind / unbind. We are not allowed manually
bind / unbind device from the driver currently.
* Rename some other variables.

Signed-off-by: default avatarAntti Palosaari <crope@iki.fi>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 0e3a71c3

drivers/media/tuners/e4000.c

+175 −183
Original line number Diff line number Diff line
@@ -19,113 +19,112 @@ 
 */



#include "e4000_priv.h"

#include <linux/math64.h>



static int e4000_init(struct dvb_frontend *fe)

{

	struct e4000 *s = fe->tuner_priv;

	struct e4000_dev *dev = fe->tuner_priv;

	struct i2c_client *client = dev->client;

	int ret;



	dev_dbg(&s->client->dev, "\n");



	/* dummy I2C to ensure I2C wakes up */

	ret = regmap_write(s->regmap, 0x02, 0x40);

	dev_dbg(&client->dev, "\n");



	/* reset */

	ret = regmap_write(s->regmap, 0x00, 0x01);

	ret = regmap_write(dev->regmap, 0x00, 0x01);

	if (ret)

		goto err;



	/* disable output clock */

	ret = regmap_write(s->regmap, 0x06, 0x00);

	ret = regmap_write(dev->regmap, 0x06, 0x00);

	if (ret)

		goto err;



	ret = regmap_write(s->regmap, 0x7a, 0x96);

	ret = regmap_write(dev->regmap, 0x7a, 0x96);

	if (ret)

		goto err;



	/* configure gains */

	ret = regmap_bulk_write(s->regmap, 0x7e, "\x01\xfe", 2);

	ret = regmap_bulk_write(dev->regmap, 0x7e, "\x01\xfe", 2);

	if (ret)

		goto err;



	ret = regmap_write(s->regmap, 0x82, 0x00);

	ret = regmap_write(dev->regmap, 0x82, 0x00);

	if (ret)

		goto err;



	ret = regmap_write(s->regmap, 0x24, 0x05);

	ret = regmap_write(dev->regmap, 0x24, 0x05);

	if (ret)

		goto err;



	ret = regmap_bulk_write(s->regmap, 0x87, "\x20\x01", 2);

	ret = regmap_bulk_write(dev->regmap, 0x87, "\x20\x01", 2);

	if (ret)

		goto err;



	ret = regmap_bulk_write(s->regmap, 0x9f, "\x7f\x07", 2);

	ret = regmap_bulk_write(dev->regmap, 0x9f, "\x7f\x07", 2);

	if (ret)

		goto err;



	/* DC offset control */

	ret = regmap_write(s->regmap, 0x2d, 0x1f);

	ret = regmap_write(dev->regmap, 0x2d, 0x1f);

	if (ret)

		goto err;



	ret = regmap_bulk_write(s->regmap, 0x70, "\x01\x01", 2);

	ret = regmap_bulk_write(dev->regmap, 0x70, "\x01\x01", 2);

	if (ret)

		goto err;



	/* gain control */

	ret = regmap_write(s->regmap, 0x1a, 0x17);

	ret = regmap_write(dev->regmap, 0x1a, 0x17);

	if (ret)

		goto err;



	ret = regmap_write(s->regmap, 0x1f, 0x1a);

	ret = regmap_write(dev->regmap, 0x1f, 0x1a);

	if (ret)

		goto err;



	s->active = true;

err:

	if (ret)

		dev_dbg(&s->client->dev, "failed=%d\n", ret);

	dev->active = true;



	return 0;

err:

	dev_dbg(&client->dev, "failed=%d\n", ret);

	return ret;

}



static int e4000_sleep(struct dvb_frontend *fe)

{

	struct e4000 *s = fe->tuner_priv;

	struct e4000_dev *dev = fe->tuner_priv;

	struct i2c_client *client = dev->client;

	int ret;



	dev_dbg(&s->client->dev, "\n");

	dev_dbg(&client->dev, "\n");



	s->active = false;

	dev->active = false;



	ret = regmap_write(s->regmap, 0x00, 0x00);

	ret = regmap_write(dev->regmap, 0x00, 0x00);

	if (ret)

		goto err;

err:

	if (ret)

		dev_dbg(&s->client->dev, "failed=%d\n", ret);



	return 0;

err:

	dev_dbg(&client->dev, "failed=%d\n", ret);

	return ret;

}



static int e4000_set_params(struct dvb_frontend *fe)

{

	struct e4000 *s = fe->tuner_priv;

	struct e4000_dev *dev = fe->tuner_priv;

	struct i2c_client *client = dev->client;

	struct dtv_frontend_properties *c = &fe->dtv_property_cache;

	int ret, i;

	unsigned int div_n, k, k_cw, div_out;

	u64 f_vco;

	u8 buf[5], i_data[4], q_data[4];



	dev_dbg(&s->client->dev,

	dev_dbg(&client->dev,

		"delivery_system=%d frequency=%u bandwidth_hz=%u\n",

		c->delivery_system, c->frequency, c->bandwidth_hz);



	/* gain control manual */

	ret = regmap_write(s->regmap, 0x1a, 0x00);

	ret = regmap_write(dev->regmap, 0x1a, 0x00);

	if (ret)

		goto err;
@@ -148,20 +147,19 @@ static int e4000_set_params(struct dvb_frontend *fe) 
		if (c->frequency <= e4000_pll_lut[i].freq)

			break;

	}



	if (i == ARRAY_SIZE(e4000_pll_lut)) {

		ret = -EINVAL;

		goto err;

	}



	#define F_REF s->clock

	#define F_REF dev->clk

	div_out = e4000_pll_lut[i].div_out;

	f_vco = (u64) c->frequency * div_out;

	/* calculate PLL integer and fractional control word */

	div_n = div_u64_rem(f_vco, F_REF, &k);

	k_cw = div_u64((u64) k * 0x10000, F_REF);



	dev_dbg(&s->client->dev,

	dev_dbg(&client->dev,

		"frequency=%u f_vco=%llu F_REF=%u div_n=%u k=%u k_cw=%04x div_out=%u\n",

		c->frequency, f_vco, F_REF, div_n, k, k_cw, div_out);
@@ -170,7 +168,7 @@ static int e4000_set_params(struct dvb_frontend *fe) 
	buf[2] = (k_cw >> 8) & 0xff;

	buf[3] = 0x00;

	buf[4] = e4000_pll_lut[i].div_out_reg;

	ret = regmap_bulk_write(s->regmap, 0x09, buf, 5);

	ret = regmap_bulk_write(dev->regmap, 0x09, buf, 5);

	if (ret)

		goto err;
@@ -179,13 +177,12 @@ static int e4000_set_params(struct dvb_frontend *fe) 
		if (c->frequency <= e400_lna_filter_lut[i].freq)

			break;

	}



	if (i == ARRAY_SIZE(e400_lna_filter_lut)) {

		ret = -EINVAL;

		goto err;

	}



	ret = regmap_write(s->regmap, 0x10, e400_lna_filter_lut[i].val);

	ret = regmap_write(dev->regmap, 0x10, e400_lna_filter_lut[i].val);

	if (ret)

		goto err;
@@ -194,7 +191,6 @@ static int e4000_set_params(struct dvb_frontend *fe) 
		if (c->bandwidth_hz <= e4000_if_filter_lut[i].freq)

			break;

	}



	if (i == ARRAY_SIZE(e4000_if_filter_lut)) {

		ret = -EINVAL;

		goto err;
@@ -203,7 +199,7 @@ static int e4000_set_params(struct dvb_frontend *fe) 
	buf[0] = e4000_if_filter_lut[i].reg11_val;

	buf[1] = e4000_if_filter_lut[i].reg12_val;



	ret = regmap_bulk_write(s->regmap, 0x11, buf, 2);

	ret = regmap_bulk_write(dev->regmap, 0x11, buf, 2);

	if (ret)

		goto err;
@@ -212,39 +208,38 @@ static int e4000_set_params(struct dvb_frontend *fe) 
		if (c->frequency <= e4000_band_lut[i].freq)

			break;

	}



	if (i == ARRAY_SIZE(e4000_band_lut)) {

		ret = -EINVAL;

		goto err;

	}



	ret = regmap_write(s->regmap, 0x07, e4000_band_lut[i].reg07_val);

	ret = regmap_write(dev->regmap, 0x07, e4000_band_lut[i].reg07_val);

	if (ret)

		goto err;



	ret = regmap_write(s->regmap, 0x78, e4000_band_lut[i].reg78_val);

	ret = regmap_write(dev->regmap, 0x78, e4000_band_lut[i].reg78_val);

	if (ret)

		goto err;



	/* DC offset */

	for (i = 0; i < 4; i++) {

		if (i == 0)

			ret = regmap_bulk_write(s->regmap, 0x15, "\x00\x7e\x24", 3);

			ret = regmap_bulk_write(dev->regmap, 0x15, "\x00\x7e\x24", 3);

		else if (i == 1)

			ret = regmap_bulk_write(s->regmap, 0x15, "\x00\x7f", 2);

			ret = regmap_bulk_write(dev->regmap, 0x15, "\x00\x7f", 2);

		else if (i == 2)

			ret = regmap_bulk_write(s->regmap, 0x15, "\x01", 1);

			ret = regmap_bulk_write(dev->regmap, 0x15, "\x01", 1);

		else

			ret = regmap_bulk_write(s->regmap, 0x16, "\x7e", 1);

			ret = regmap_bulk_write(dev->regmap, 0x16, "\x7e", 1);



		if (ret)

			goto err;



		ret = regmap_write(s->regmap, 0x29, 0x01);

		ret = regmap_write(dev->regmap, 0x29, 0x01);

		if (ret)

			goto err;



		ret = regmap_bulk_read(s->regmap, 0x2a, buf, 3);

		ret = regmap_bulk_read(dev->regmap, 0x2a, buf, 3);

		if (ret)

			goto err;
@@ -255,30 +250,31 @@ static int e4000_set_params(struct dvb_frontend *fe) 
	swap(q_data[2], q_data[3]);

	swap(i_data[2], i_data[3]);



	ret = regmap_bulk_write(s->regmap, 0x50, q_data, 4);

	ret = regmap_bulk_write(dev->regmap, 0x50, q_data, 4);

	if (ret)

		goto err;



	ret = regmap_bulk_write(s->regmap, 0x60, i_data, 4);

	ret = regmap_bulk_write(dev->regmap, 0x60, i_data, 4);

	if (ret)

		goto err;



	/* gain control auto */

	ret = regmap_write(s->regmap, 0x1a, 0x17);

	ret = regmap_write(dev->regmap, 0x1a, 0x17);

	if (ret)

		goto err;

err:

	if (ret)

		dev_dbg(&s->client->dev, "failed=%d\n", ret);



	return 0;

err:

	dev_dbg(&client->dev, "failed=%d\n", ret);

	return ret;

}



static int e4000_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)

{

	struct e4000 *s = fe->tuner_priv;

	struct e4000_dev *dev = fe->tuner_priv;

	struct i2c_client *client = dev->client;



	dev_dbg(&s->client->dev, "\n");

	dev_dbg(&client->dev, "\n");



	*frequency = 0; /* Zero-IF */
@@ -288,140 +284,145 @@ static int e4000_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) 
#if IS_ENABLED(CONFIG_VIDEO_V4L2)

static int e4000_set_lna_gain(struct dvb_frontend *fe)

{

	struct e4000 *s = fe->tuner_priv;

	struct e4000_dev *dev = fe->tuner_priv;

	struct i2c_client *client = dev->client;

	int ret;

	u8 u8tmp;



	dev_dbg(&s->client->dev, "lna auto=%d->%d val=%d->%d\n",

			s->lna_gain_auto->cur.val, s->lna_gain_auto->val,

			s->lna_gain->cur.val, s->lna_gain->val);

	dev_dbg(&client->dev, "lna auto=%d->%d val=%d->%d\n",

		dev->lna_gain_auto->cur.val, dev->lna_gain_auto->val,

		dev->lna_gain->cur.val, dev->lna_gain->val);



	if (s->lna_gain_auto->val && s->if_gain_auto->cur.val)

	if (dev->lna_gain_auto->val && dev->if_gain_auto->cur.val)

		u8tmp = 0x17;

	else if (s->lna_gain_auto->val)

	else if (dev->lna_gain_auto->val)

		u8tmp = 0x19;

	else if (s->if_gain_auto->cur.val)

	else if (dev->if_gain_auto->cur.val)

		u8tmp = 0x16;

	else

		u8tmp = 0x10;



	ret = regmap_write(s->regmap, 0x1a, u8tmp);

	ret = regmap_write(dev->regmap, 0x1a, u8tmp);

	if (ret)

		goto err;



	if (s->lna_gain_auto->val == false) {

		ret = regmap_write(s->regmap, 0x14, s->lna_gain->val);

	if (dev->lna_gain_auto->val == false) {

		ret = regmap_write(dev->regmap, 0x14, dev->lna_gain->val);

		if (ret)

			goto err;

	}

err:

	if (ret)

		dev_dbg(&s->client->dev, "failed=%d\n", ret);



	return 0;

err:

	dev_dbg(&client->dev, "failed=%d\n", ret);

	return ret;

}



static int e4000_set_mixer_gain(struct dvb_frontend *fe)

{

	struct e4000 *s = fe->tuner_priv;

	struct e4000_dev *dev = fe->tuner_priv;

	struct i2c_client *client = dev->client;

	int ret;

	u8 u8tmp;



	dev_dbg(&s->client->dev, "mixer auto=%d->%d val=%d->%d\n",

			s->mixer_gain_auto->cur.val, s->mixer_gain_auto->val,

			s->mixer_gain->cur.val, s->mixer_gain->val);

	dev_dbg(&client->dev, "mixer auto=%d->%d val=%d->%d\n",

		dev->mixer_gain_auto->cur.val, dev->mixer_gain_auto->val,

		dev->mixer_gain->cur.val, dev->mixer_gain->val);



	if (s->mixer_gain_auto->val)

	if (dev->mixer_gain_auto->val)

		u8tmp = 0x15;

	else

		u8tmp = 0x14;



	ret = regmap_write(s->regmap, 0x20, u8tmp);

	ret = regmap_write(dev->regmap, 0x20, u8tmp);

	if (ret)

		goto err;



	if (s->mixer_gain_auto->val == false) {

		ret = regmap_write(s->regmap, 0x15, s->mixer_gain->val);

	if (dev->mixer_gain_auto->val == false) {

		ret = regmap_write(dev->regmap, 0x15, dev->mixer_gain->val);

		if (ret)

			goto err;

	}

err:

	if (ret)

		dev_dbg(&s->client->dev, "failed=%d\n", ret);



	return 0;

err:

	dev_dbg(&client->dev, "failed=%d\n", ret);

	return ret;

}



static int e4000_set_if_gain(struct dvb_frontend *fe)

{

	struct e4000 *s = fe->tuner_priv;

	struct e4000_dev *dev = fe->tuner_priv;

	struct i2c_client *client = dev->client;

	int ret;

	u8 buf[2];

	u8 u8tmp;



	dev_dbg(&s->client->dev, "if auto=%d->%d val=%d->%d\n",

			s->if_gain_auto->cur.val, s->if_gain_auto->val,

			s->if_gain->cur.val, s->if_gain->val);

	dev_dbg(&client->dev, "if auto=%d->%d val=%d->%d\n",

		dev->if_gain_auto->cur.val, dev->if_gain_auto->val,

		dev->if_gain->cur.val, dev->if_gain->val);



	if (s->if_gain_auto->val && s->lna_gain_auto->cur.val)

	if (dev->if_gain_auto->val && dev->lna_gain_auto->cur.val)

		u8tmp = 0x17;

	else if (s->lna_gain_auto->cur.val)

	else if (dev->lna_gain_auto->cur.val)

		u8tmp = 0x19;

	else if (s->if_gain_auto->val)

	else if (dev->if_gain_auto->val)

		u8tmp = 0x16;

	else

		u8tmp = 0x10;



	ret = regmap_write(s->regmap, 0x1a, u8tmp);

	ret = regmap_write(dev->regmap, 0x1a, u8tmp);

	if (ret)

		goto err;



	if (s->if_gain_auto->val == false) {

		buf[0] = e4000_if_gain_lut[s->if_gain->val].reg16_val;

		buf[1] = e4000_if_gain_lut[s->if_gain->val].reg17_val;

		ret = regmap_bulk_write(s->regmap, 0x16, buf, 2);

	if (dev->if_gain_auto->val == false) {

		buf[0] = e4000_if_gain_lut[dev->if_gain->val].reg16_val;

		buf[1] = e4000_if_gain_lut[dev->if_gain->val].reg17_val;

		ret = regmap_bulk_write(dev->regmap, 0x16, buf, 2);

		if (ret)

			goto err;

	}

err:

	if (ret)

		dev_dbg(&s->client->dev, "failed=%d\n", ret);



	return 0;

err:

	dev_dbg(&client->dev, "failed=%d\n", ret);

	return ret;

}



static int e4000_pll_lock(struct dvb_frontend *fe)

{

	struct e4000 *s = fe->tuner_priv;

	struct e4000_dev *dev = fe->tuner_priv;

	struct i2c_client *client = dev->client;

	int ret;

	unsigned int utmp;

	unsigned int uitmp;



	ret = regmap_read(s->regmap, 0x07, &utmp);

	ret = regmap_read(dev->regmap, 0x07, &uitmp);

	if (ret)

		goto err;



	s->pll_lock->val = (utmp & 0x01);

err:

	if (ret)

		dev_dbg(&s->client->dev, "failed=%d\n", ret);

	dev->pll_lock->val = (uitmp & 0x01);



	return 0;

err:

	dev_dbg(&client->dev, "failed=%d\n", ret);

	return ret;

}



static int e4000_g_volatile_ctrl(struct v4l2_ctrl *ctrl)

{

	struct e4000 *s = container_of(ctrl->handler, struct e4000, hdl);

	struct e4000_dev *dev = container_of(ctrl->handler, struct e4000_dev, hdl);

	struct i2c_client *client = dev->client;

	int ret;



	if (!s->active)

	if (!dev->active)

		return 0;



	switch (ctrl->id) {

	case  V4L2_CID_RF_TUNER_PLL_LOCK:

		ret = e4000_pll_lock(s->fe);

		ret = e4000_pll_lock(dev->fe);

		break;

	default:

		dev_dbg(&s->client->dev, "unknown ctrl: id=%d name=%s\n",

		dev_dbg(&client->dev, "unknown ctrl: id=%d name=%s\n",

			ctrl->id, ctrl->name);

		ret = -EINVAL;

	}
@@ -431,34 +432,34 @@ static int e4000_g_volatile_ctrl(struct v4l2_ctrl *ctrl) 


static int e4000_s_ctrl(struct v4l2_ctrl *ctrl)

{

	struct e4000 *s = container_of(ctrl->handler, struct e4000, hdl);

	struct dvb_frontend *fe = s->fe;

	struct dtv_frontend_properties *c = &fe->dtv_property_cache;

	struct e4000_dev *dev = container_of(ctrl->handler, struct e4000_dev, hdl);

	struct i2c_client *client = dev->client;

	struct dtv_frontend_properties *c = &dev->fe->dtv_property_cache;

	int ret;



	if (!s->active)

	if (!dev->active)

		return 0;



	switch (ctrl->id) {

	case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO:

	case V4L2_CID_RF_TUNER_BANDWIDTH:

		c->bandwidth_hz = s->bandwidth->val;

		ret = e4000_set_params(s->fe);

		c->bandwidth_hz = dev->bandwidth->val;

		ret = e4000_set_params(dev->fe);

		break;

	case  V4L2_CID_RF_TUNER_LNA_GAIN_AUTO:

	case  V4L2_CID_RF_TUNER_LNA_GAIN:

		ret = e4000_set_lna_gain(s->fe);

		ret = e4000_set_lna_gain(dev->fe);

		break;

	case  V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO:

	case  V4L2_CID_RF_TUNER_MIXER_GAIN:

		ret = e4000_set_mixer_gain(s->fe);

		ret = e4000_set_mixer_gain(dev->fe);

		break;

	case  V4L2_CID_RF_TUNER_IF_GAIN_AUTO:

	case  V4L2_CID_RF_TUNER_IF_GAIN:

		ret = e4000_set_if_gain(s->fe);

		ret = e4000_set_if_gain(dev->fe);

		break;

	default:

		dev_dbg(&s->client->dev, "unknown ctrl: id=%d name=%s\n",

		dev_dbg(&client->dev, "unknown ctrl: id=%d name=%s\n",

			ctrl->id, ctrl->name);

		ret = -EINVAL;

	}
@@ -493,136 +494,127 @@ static const struct dvb_tuner_ops e4000_tuner_ops = { 
static int e4000_probe(struct i2c_client *client,

		       const struct i2c_device_id *id)

{

	struct e4000_dev *dev;

	struct e4000_config *cfg = client->dev.platform_data;

	struct dvb_frontend *fe = cfg->fe;

	struct e4000 *s;

	int ret;

	unsigned int utmp;

	unsigned int uitmp;

	static const struct regmap_config regmap_config = {

		.reg_bits = 8,

		.val_bits = 8,

		.max_register = 0xff,

	};



	s = kzalloc(sizeof(struct e4000), GFP_KERNEL);

	if (!s) {

	dev = kzalloc(sizeof(*dev), GFP_KERNEL);

	if (!dev) {

		ret = -ENOMEM;

		dev_err(&client->dev, "kzalloc() failed\n");

		goto err;

	}



	s->clock = cfg->clock;

	s->client = client;

	s->fe = cfg->fe;

	s->regmap = devm_regmap_init_i2c(client, &regmap_config);

	if (IS_ERR(s->regmap)) {

		ret = PTR_ERR(s->regmap);

		goto err;

	dev->clk = cfg->clock;

	dev->client = client;

	dev->fe = cfg->fe;

	dev->regmap = devm_regmap_init_i2c(client, &regmap_config);

	if (IS_ERR(dev->regmap)) {

		ret = PTR_ERR(dev->regmap);

		goto err_kfree;

	}



	/* check if the tuner is there */

	ret = regmap_read(s->regmap, 0x02, &utmp);

	ret = regmap_read(dev->regmap, 0x02, &uitmp);

	if (ret)

		goto err;

		goto err_kfree;



	dev_dbg(&s->client->dev, "chip id=%02x\n", utmp);

	dev_dbg(&client->dev, "chip id=%02x\n", uitmp);



	if (utmp != 0x40) {

	if (uitmp != 0x40) {

		ret = -ENODEV;

		goto err;

		goto err_kfree;

	}



	/* put sleep as chip seems to be in normal mode by default */

	ret = regmap_write(s->regmap, 0x00, 0x00);

	ret = regmap_write(dev->regmap, 0x00, 0x00);

	if (ret)

		goto err;

		goto err_kfree;



#if IS_ENABLED(CONFIG_VIDEO_V4L2)

	/* Register controls */

	v4l2_ctrl_handler_init(&s->hdl, 9);

	s->bandwidth_auto = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,

	v4l2_ctrl_handler_init(&dev->hdl, 9);

	dev->bandwidth_auto = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,

			V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, 0, 1, 1, 1);

	s->bandwidth = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,

	dev->bandwidth = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,

			V4L2_CID_RF_TUNER_BANDWIDTH, 4300000, 11000000, 100000, 4300000);

	v4l2_ctrl_auto_cluster(2, &s->bandwidth_auto, 0, false);

	s->lna_gain_auto = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,

	v4l2_ctrl_auto_cluster(2, &dev->bandwidth_auto, 0, false);

	dev->lna_gain_auto = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,

			V4L2_CID_RF_TUNER_LNA_GAIN_AUTO, 0, 1, 1, 1);

	s->lna_gain = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,

	dev->lna_gain = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,

			V4L2_CID_RF_TUNER_LNA_GAIN, 0, 15, 1, 10);

	v4l2_ctrl_auto_cluster(2, &s->lna_gain_auto, 0, false);

	s->mixer_gain_auto = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,

	v4l2_ctrl_auto_cluster(2, &dev->lna_gain_auto, 0, false);

	dev->mixer_gain_auto = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,

			V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO, 0, 1, 1, 1);

	s->mixer_gain = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,

	dev->mixer_gain = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,

			V4L2_CID_RF_TUNER_MIXER_GAIN, 0, 1, 1, 1);

	v4l2_ctrl_auto_cluster(2, &s->mixer_gain_auto, 0, false);

	s->if_gain_auto = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,

	v4l2_ctrl_auto_cluster(2, &dev->mixer_gain_auto, 0, false);

	dev->if_gain_auto = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,

			V4L2_CID_RF_TUNER_IF_GAIN_AUTO, 0, 1, 1, 1);

	s->if_gain = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,

	dev->if_gain = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,

			V4L2_CID_RF_TUNER_IF_GAIN, 0, 54, 1, 0);

	v4l2_ctrl_auto_cluster(2, &s->if_gain_auto, 0, false);

	s->pll_lock = v4l2_ctrl_new_std(&s->hdl, &e4000_ctrl_ops,

	v4l2_ctrl_auto_cluster(2, &dev->if_gain_auto, 0, false);

	dev->pll_lock = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,

			V4L2_CID_RF_TUNER_PLL_LOCK,  0, 1, 1, 0);

	if (s->hdl.error) {

		ret = s->hdl.error;

		dev_err(&s->client->dev, "Could not initialize controls\n");

		v4l2_ctrl_handler_free(&s->hdl);

		goto err;

	if (dev->hdl.error) {

		ret = dev->hdl.error;

		dev_err(&client->dev, "Could not initialize controls\n");

		v4l2_ctrl_handler_free(&dev->hdl);

		goto err_kfree;

	}



	s->sd.ctrl_handler = &s->hdl;

	dev->sd.ctrl_handler = &dev->hdl;

#endif



	dev_info(&s->client->dev, "Elonics E4000 successfully identified\n");



	fe->tuner_priv = s;

	fe->tuner_priv = dev;

	memcpy(&fe->ops.tuner_ops, &e4000_tuner_ops,

			sizeof(struct dvb_tuner_ops));

	v4l2_set_subdevdata(&dev->sd, client);

	i2c_set_clientdata(client, &dev->sd);



	v4l2_set_subdevdata(&s->sd, client);

	i2c_set_clientdata(client, &s->sd);



	dev_info(&client->dev, "Elonics E4000 successfully identified\n");

	return 0;

err_kfree:

	kfree(dev);

err:

	if (ret) {

	dev_dbg(&client->dev, "failed=%d\n", ret);

		kfree(s);

	}



	return ret;

}



static int e4000_remove(struct i2c_client *client)

{

	struct v4l2_subdev *sd = i2c_get_clientdata(client);

	struct e4000 *s = container_of(sd, struct e4000, sd);

	struct dvb_frontend *fe = s->fe;

	struct e4000_dev *dev = container_of(sd, struct e4000_dev, sd);



	dev_dbg(&client->dev, "\n");



#if IS_ENABLED(CONFIG_VIDEO_V4L2)

	v4l2_ctrl_handler_free(&s->hdl);

	v4l2_ctrl_handler_free(&dev->hdl);

#endif

	memset(&fe->ops.tuner_ops, 0, sizeof(struct dvb_tuner_ops));

	fe->tuner_priv = NULL;

	kfree(s);

	kfree(dev);



	return 0;

}



static const struct i2c_device_id e4000_id[] = {

static const struct i2c_device_id e4000_id_table[] = {

	{"e4000", 0},

	{}

};

MODULE_DEVICE_TABLE(i2c, e4000_id);

MODULE_DEVICE_TABLE(i2c, e4000_id_table);



static struct i2c_driver e4000_driver = {

	.driver = {

		.owner	= THIS_MODULE,

		.name	= "e4000",

		.suppress_bind_attrs = true,

	},

	.probe		= e4000_probe,

	.remove		= e4000_remove,

	.id_table	= e4000_id,

	.id_table	= e4000_id_table,

};



module_i2c_driver(e4000_driver);

drivers/media/tuners/e4000.h

+0 −1
Original line number Diff line number Diff line
@@ -21,7 +21,6 @@ 
#ifndef E4000_H

#define E4000_H



#include <linux/kconfig.h>

#include "dvb_frontend.h"



/*

drivers/media/tuners/e4000_priv.h

+3 −2
Original line number Diff line number Diff line
@@ -22,14 +22,15 @@ 
#define E4000_PRIV_H



#include "e4000.h"

#include <linux/math64.h>

#include <media/v4l2-ctrls.h>

#include <media/v4l2-subdev.h>

#include <linux/regmap.h>



struct e4000 {

struct e4000_dev {

	struct i2c_client *client;

	struct regmap *regmap;

	u32 clock;

	u32 clk;

	struct dvb_frontend *fe;

	struct v4l2_subdev sd;

	bool active;

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