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authorAntti Palosaari <crope@iki.fi>2015-04-15 19:12:34 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-05-18 15:51:54 -0300
commitfc851c66b275e4092bb79c888a80dcdd1920c0b8 (patch)
treebddcd2f2fe874c78eac1827a0c5c490bdb004753 /drivers/media/tuners
parentb3f02270b2618833fd44f8e5a8c1f82ab47741c2 (diff)
[media] tua9001: add I2C bindings
Add I2C bindings. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/tuners')
-rw-r--r--drivers/media/tuners/tua9001.c100
-rw-r--r--drivers/media/tuners/tua9001.h13
-rw-r--r--drivers/media/tuners/tua9001_priv.h4
3 files changed, 114 insertions, 3 deletions
diff --git a/drivers/media/tuners/tua9001.c b/drivers/media/tuners/tua9001.c
index 83a6240f64d3..55cac20ae034 100644
--- a/drivers/media/tuners/tua9001.c
+++ b/drivers/media/tuners/tua9001.c
@@ -28,7 +28,7 @@ static int tua9001_wr_reg(struct tua9001_priv *priv, u8 reg, u16 val)
u8 buf[3] = { reg, (val >> 8) & 0xff, (val >> 0) & 0xff };
struct i2c_msg msg[1] = {
{
- .addr = priv->cfg->i2c_addr,
+ .addr = priv->i2c_addr,
.flags = 0,
.len = sizeof(buf),
.buf = buf,
@@ -253,7 +253,7 @@ struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe,
if (priv == NULL)
return NULL;
- priv->cfg = cfg;
+ priv->i2c_addr = cfg->i2c_addr;
priv->i2c = i2c;
if (fe->callback) {
@@ -289,6 +289,102 @@ err:
}
EXPORT_SYMBOL(tua9001_attach);
+static int tua9001_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct tua9001_priv *dev;
+ struct tua9001_platform_data *pdata = client->dev.platform_data;
+ struct dvb_frontend *fe = pdata->dvb_frontend;
+ int ret;
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ dev->client = client;
+ dev->i2c_addr = client->addr;
+ dev->i2c = client->adapter;
+ dev->fe = pdata->dvb_frontend;
+
+ if (fe->callback) {
+ ret = fe->callback(client->adapter,
+ DVB_FRONTEND_COMPONENT_TUNER,
+ TUA9001_CMD_CEN, 1);
+ if (ret)
+ goto err_kfree;
+
+ ret = fe->callback(client->adapter,
+ DVB_FRONTEND_COMPONENT_TUNER,
+ TUA9001_CMD_RXEN, 0);
+ if (ret)
+ goto err_kfree;
+
+ ret = fe->callback(client->adapter,
+ DVB_FRONTEND_COMPONENT_TUNER,
+ TUA9001_CMD_RESETN, 1);
+ if (ret)
+ goto err_kfree;
+ }
+
+ fe->tuner_priv = dev;
+ memcpy(&fe->ops.tuner_ops, &tua9001_tuner_ops,
+ sizeof(struct dvb_tuner_ops));
+ fe->ops.tuner_ops.release = NULL;
+ i2c_set_clientdata(client, dev);
+
+ dev_info(&client->dev, "Infineon TUA 9001 successfully attached\n");
+ return 0;
+err_kfree:
+ kfree(dev);
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ return ret;
+}
+
+static int tua9001_remove(struct i2c_client *client)
+{
+ struct tua9001_priv *dev = i2c_get_clientdata(client);
+ struct dvb_frontend *fe = dev->fe;
+ int ret;
+
+ dev_dbg(&client->dev, "\n");
+
+ if (fe->callback) {
+ ret = fe->callback(client->adapter,
+ DVB_FRONTEND_COMPONENT_TUNER,
+ TUA9001_CMD_CEN, 0);
+ if (ret)
+ goto err_kfree;
+ }
+ kfree(dev);
+ return 0;
+err_kfree:
+ kfree(dev);
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ return ret;
+}
+
+static const struct i2c_device_id tua9001_id_table[] = {
+ {"tua9001", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, tua9001_id_table);
+
+static struct i2c_driver tua9001_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "tua9001",
+ .suppress_bind_attrs = true,
+ },
+ .probe = tua9001_probe,
+ .remove = tua9001_remove,
+ .id_table = tua9001_id_table,
+};
+
+module_i2c_driver(tua9001_driver);
+
MODULE_DESCRIPTION("Infineon TUA 9001 silicon tuner driver");
MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
MODULE_LICENSE("GPL");
diff --git a/drivers/media/tuners/tua9001.h b/drivers/media/tuners/tua9001.h
index 2c3375c7aeb9..0b4fc8d26f52 100644
--- a/drivers/media/tuners/tua9001.h
+++ b/drivers/media/tuners/tua9001.h
@@ -24,6 +24,19 @@
#include <linux/kconfig.h>
#include "dvb_frontend.h"
+/*
+ * I2C address
+ * 0x60,
+ */
+
+/**
+ * struct tua9001_platform_data - Platform data for the tua9001 driver
+ * @dvb_frontend: DVB frontend.
+ */
+struct tua9001_platform_data {
+ struct dvb_frontend *dvb_frontend;
+};
+
struct tua9001_config {
/*
* I2C address
diff --git a/drivers/media/tuners/tua9001_priv.h b/drivers/media/tuners/tua9001_priv.h
index 73cc1ce0575c..3282a1a12e86 100644
--- a/drivers/media/tuners/tua9001_priv.h
+++ b/drivers/media/tuners/tua9001_priv.h
@@ -27,8 +27,10 @@ struct reg_val {
};
struct tua9001_priv {
- struct tua9001_config *cfg;
+ struct i2c_client *client;
struct i2c_adapter *i2c;
+ u8 i2c_addr;
+ struct dvb_frontend *fe;
};
#endif

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