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media: helene: add I2C device probe function 

This patch adds I2C probe function to use dvb_module_probe() with
this driver. And also support multiple delivery systems at the
same device.

Signed-off-by: Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Katsuhiro Suzuki 2018-07-17 21:06:42 -04:00 committed by Mauro Carvalho Chehab
parent 299c7007e9
commit 817dc4b579
2 changed files with 87 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

88
drivers/media/dvb-frontends/helene.c
View File

@ -666,7 +666,7 @@ static int helene_set_params_s(struct dvb_frontend *fe)
return 0;
}
static int helene_set_params(struct dvb_frontend *fe)
static int helene_set_params_t(struct dvb_frontend *fe)
{
u8 data[MAX_WRITE_REGSIZE];
u32 frequency;
@ -835,6 +835,19 @@ static int helene_set_params(struct dvb_frontend *fe)
return 0;
}
static int helene_set_params(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
if (p->delivery_system == SYS_DVBT ||
p->delivery_system == SYS_DVBT2 ||
p->delivery_system == SYS_ISDBT ||
p->delivery_system == SYS_DVBC_ANNEX_A)
return helene_set_params_t(fe);
return helene_set_params_s(fe);
}
static int helene_get_frequency(struct dvb_frontend *fe, u32 *frequency)
{
struct helene_priv *priv = fe->tuner_priv;
@ -843,7 +856,7 @@ static int helene_get_frequency(struct dvb_frontend *fe, u32 *frequency)
return 0;
}
static const struct dvb_tuner_ops helene_tuner_ops = {
static const struct dvb_tuner_ops helene_tuner_ops_t = {
.info = {
.name = "Sony HELENE Ter tuner",
.frequency_min_hz = 1 * MHz,
@ -853,7 +866,7 @@ static const struct dvb_tuner_ops helene_tuner_ops = {
.init = helene_init,
.release = helene_release,
.sleep = helene_sleep,
.set_params = helene_set_params,
.set_params = helene_set_params_t,
.get_frequency = helene_get_frequency,
};
@ -871,6 +884,20 @@ static const struct dvb_tuner_ops helene_tuner_ops_s = {
.get_frequency = helene_get_frequency,
};
static const struct dvb_tuner_ops helene_tuner_ops = {
.info = {
.name = "Sony HELENE Sat/Ter tuner",
.frequency_min_hz = 1 * MHz,
.frequency_max_hz = 2500 * MHz,
.frequency_step_hz = 25 * kHz,
},
.init = helene_init,
.release = helene_release,
.sleep = helene_sleep,
.set_params = helene_set_params,
.get_frequency = helene_get_frequency,
};
/* power-on tuner
* call once after reset
*/
@ -1035,7 +1062,7 @@ struct dvb_frontend *helene_attach(struct dvb_frontend *fe,
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);
memcpy(&fe->ops.tuner_ops, &helene_tuner_ops,
memcpy(&fe->ops.tuner_ops, &helene_tuner_ops_t,
sizeof(struct dvb_tuner_ops));
fe->tuner_priv = priv;
dev_info(&priv->i2c->dev,
@ -1045,6 +1072,59 @@ struct dvb_frontend *helene_attach(struct dvb_frontend *fe,
}
EXPORT_SYMBOL(helene_attach);
static int helene_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct helene_config *config = client->dev.platform_data;
struct dvb_frontend *fe = config->fe;
struct device *dev = &client->dev;
struct helene_priv *priv;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->i2c_address = client->addr;
priv->i2c = client->adapter;
priv->set_tuner_data = config->set_tuner_priv;
priv->set_tuner = config->set_tuner_callback;
priv->xtal = config->xtal;
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
if (helene_x_pon(priv) != 0)
return -EINVAL;
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);
memcpy(&fe->ops.tuner_ops, &helene_tuner_ops,
sizeof(struct dvb_tuner_ops));
fe->tuner_priv = priv;
i2c_set_clientdata(client, priv);
dev_info(dev, "Sony HELENE attached on addr=%x at I2C adapter %p\n",
priv->i2c_address, priv->i2c);
return 0;
}
static const struct i2c_device_id helene_id[] = {
{ "helene", },
{}
};
MODULE_DEVICE_TABLE(i2c, helene_id);
static struct i2c_driver helene_driver = {
.driver = {
.name = "helene",
},
.probe = helene_probe,
.id_table = helene_id,
};
module_i2c_driver(helene_driver);
MODULE_DESCRIPTION("Sony HELENE Sat/Ter tuner driver");
MODULE_AUTHOR("Abylay Ospan <aospan@netup.ru>");
MODULE_LICENSE("GPL");

3
drivers/media/dvb-frontends/helene.h
View File

@ -39,6 +39,7 @@ enum helene_xtal {
* @set_tuner_callback: Callback function that notifies the parent driver
* which tuner is active now
* @xtal: Cristal frequency as described by &enum helene_xtal
* @fe: Frontend for which connects this tuner
*/
struct helene_config {
u8 i2c_address;
@ -46,6 +47,8 @@ struct helene_config {
void *set_tuner_priv;
int (*set_tuner_callback)(void *, int);
enum helene_xtal xtal;
struct dvb_frontend *fe;
};
#if IS_REACHABLE(CONFIG_DVB_HELENE)