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path: root/drivers/media/dvb-frontends/a8293.c
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Diffstat (limited to 'drivers/media/dvb-frontends/a8293.c')
-rw-r--r--drivers/media/dvb-frontends/a8293.c89
1 files changed, 85 insertions, 4 deletions
diff --git a/drivers/media/dvb-frontends/a8293.c b/drivers/media/dvb-frontends/a8293.c
index 780da5813..97ecbe010 100644
--- a/drivers/media/dvb-frontends/a8293.c
+++ b/drivers/media/dvb-frontends/a8293.c
@@ -22,8 +22,9 @@
#include "a8293.h"
struct a8293_priv {
+ u8 i2c_addr;
struct i2c_adapter *i2c;
- const struct a8293_config *cfg;
+ struct i2c_client *client;
u8 reg[2];
};
@@ -32,7 +33,7 @@ static int a8293_i2c(struct a8293_priv *priv, u8 *val, int len, bool rd)
int ret;
struct i2c_msg msg[1] = {
{
- .addr = priv->cfg->i2c_addr,
+ .addr = priv->i2c_addr,
.len = len,
.buf = val,
}
@@ -66,7 +67,7 @@ static int a8293_rd(struct a8293_priv *priv, u8 *val, int len)
}
static int a8293_set_voltage(struct dvb_frontend *fe,
- fe_sec_voltage_t fe_sec_voltage)
+ enum fe_sec_voltage fe_sec_voltage)
{
struct a8293_priv *priv = fe->sec_priv;
int ret;
@@ -128,7 +129,7 @@ struct dvb_frontend *a8293_attach(struct dvb_frontend *fe,
/* setup the priv */
priv->i2c = i2c;
- priv->cfg = cfg;
+ priv->i2c_addr = cfg->i2c_addr;
fe->sec_priv = priv;
/* check if the SEC is there */
@@ -164,6 +165,86 @@ err:
}
EXPORT_SYMBOL(a8293_attach);
+static int a8293_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct a8293_priv *dev;
+ struct a8293_platform_data *pdata = client->dev.platform_data;
+ struct dvb_frontend *fe = pdata->dvb_frontend;
+ int ret;
+ u8 buf[2];
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ dev->client = client;
+ dev->i2c = client->adapter;
+ dev->i2c_addr = client->addr;
+
+ /* check if the SEC is there */
+ ret = a8293_rd(dev, buf, 2);
+ if (ret)
+ goto err_kfree;
+
+ /* ENB=0 */
+ dev->reg[0] = 0x10;
+ ret = a8293_wr(dev, &dev->reg[0], 1);
+ if (ret)
+ goto err_kfree;
+
+ /* TMODE=0, TGATE=1 */
+ dev->reg[1] = 0x82;
+ ret = a8293_wr(dev, &dev->reg[1], 1);
+ if (ret)
+ goto err_kfree;
+
+ /* override frontend ops */
+ fe->ops.set_voltage = a8293_set_voltage;
+
+ fe->sec_priv = dev;
+ i2c_set_clientdata(client, dev);
+
+ dev_info(&client->dev, "Allegro A8293 SEC successfully attached\n");
+ return 0;
+err_kfree:
+ kfree(dev);
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ return ret;
+}
+
+static int a8293_remove(struct i2c_client *client)
+{
+ struct a8293_dev *dev = i2c_get_clientdata(client);
+
+ dev_dbg(&client->dev, "\n");
+
+ kfree(dev);
+ return 0;
+}
+
+static const struct i2c_device_id a8293_id_table[] = {
+ {"a8293", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, a8293_id_table);
+
+static struct i2c_driver a8293_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "a8293",
+ .suppress_bind_attrs = true,
+ },
+ .probe = a8293_probe,
+ .remove = a8293_remove,
+ .id_table = a8293_id_table,
+};
+
+module_i2c_driver(a8293_driver);
+
MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
MODULE_DESCRIPTION("Allegro A8293 SEC driver");
MODULE_LICENSE("GPL");