Implement I2C client bindings.
Signed-off-by: Antti Palosaari <cr...@iki.fi>
---
drivers/media/dvb-frontends/tda10071.c | 95 +++++++++++++++++++++++++++++
drivers/media/dvb-frontends/tda10071.h | 29 +++++++++
drivers/media/dvb-frontends/tda10071_priv.h | 1 +
3 files changed, 125 insertions(+)
diff --git a/drivers/media/dvb-frontends/tda10071.c
b/drivers/media/dvb-frontends/tda10071.c
index 4a19b85..3132854 100644
--- a/drivers/media/dvb-frontends/tda10071.c
+++ b/drivers/media/dvb-frontends/tda10071.c
@@ -1313,6 +1313,101 @@ static struct dvb_frontend_ops tda10071_ops = {
.set_voltage = tda10071_set_voltage,
};
+static struct dvb_frontend *tda10071_get_dvb_frontend(struct i2c_client
*client)
+{
+ struct tda10071_priv *dev = i2c_get_clientdata(client);
+
+ dev_dbg(&client->dev, "\n");
+
+ return &dev->fe;
+}
+
+static int tda10071_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct tda10071_priv *dev;
+ struct tda10071_platform_data *pdata = client->dev.platform_data;
+ int ret;
+ u8 u8tmp;
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ dev->client = client;
+ dev->i2c = client->adapter;
+ dev->cfg.demod_i2c_addr = client->addr;
+ dev->cfg.i2c_wr_max = pdata->i2c_wr_max;
+ dev->cfg.ts_mode = pdata->ts_mode;
+ dev->cfg.spec_inv = pdata->spec_inv;
+ dev->cfg.xtal = pdata->clk;
+ dev->cfg.pll_multiplier = pdata->pll_multiplier;
+ dev->cfg.tuner_i2c_addr = pdata->tuner_i2c_addr;
+
+ /* chip ID */
+ ret = tda10071_rd_reg(dev, 0xff, &u8tmp);
+ if (ret || u8tmp != 0x0f)
+ goto err_kfree;
+
+ /* chip type */
+ ret = tda10071_rd_reg(dev, 0xdd, &u8tmp);
+ if (ret || u8tmp != 0x00)
+ goto err_kfree;
+
+ /* chip version */
+ ret = tda10071_rd_reg(dev, 0xfe, &u8tmp);
+ if (ret || u8tmp != 0x01)
+ goto err_kfree;
+
+ /* create dvb_frontend */
+ memcpy(&dev->fe.ops, &tda10071_ops, sizeof(struct dvb_frontend_ops));
+ dev->fe.ops.release = NULL;
+ dev->fe.demodulator_priv = dev;
+ i2c_set_clientdata(client, dev);
+
+ /* setup callbacks */
+ pdata->get_dvb_frontend = tda10071_get_dvb_frontend;
+
+ dev_info(&client->dev, "NXP TDA10071 successfully identified\n");
+ return 0;
+err_kfree:
+ kfree(dev);
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ return ret;
+}
+
+static int tda10071_remove(struct i2c_client *client)
+{
+ struct tda10071_dev *dev = i2c_get_clientdata(client);
+
+ dev_dbg(&client->dev, "\n");
+
+ kfree(dev);
+ return 0;
+}
+
+static const struct i2c_device_id tda10071_id_table[] = {
+ {"tda10071_cx24118", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, tda10071_id_table);
+
+static struct i2c_driver tda10071_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "tda10071",
+ .suppress_bind_attrs = true,
+ },
+ .probe = tda10071_probe,
+ .remove = tda10071_remove,
+ .id_table = tda10071_id_table,
+};
+
+module_i2c_driver(tda10071_driver);
+
MODULE_AUTHOR("Antti Palosaari <cr...@iki.fi>");
MODULE_DESCRIPTION("NXP TDA10071 DVB-S/S2 demodulator driver");
MODULE_LICENSE("GPL");
diff --git a/drivers/media/dvb-frontends/tda10071.h
b/drivers/media/dvb-frontends/tda10071.h
index da89f42..0ffbfa5 100644
--- a/drivers/media/dvb-frontends/tda10071.h
+++ b/drivers/media/dvb-frontends/tda10071.h
@@ -24,6 +24,35 @@
#include <linux/kconfig.h>
#include <linux/dvb/frontend.h>
+/*
+ * I2C address
+ * 0x55,
+ */
+
+/**
+ * struct tda10071_platform_data - Platform data for the tda10071 driver
+ * @clk: Clock frequency.
+ * @i2c_wr_max: Max bytes I2C adapter can write at once.
+ * @ts_mode: TS mode.
+ * @spec_inv: Input spectrum inversion.
+ * @pll_multiplier: PLL multiplier.
+ * @tuner_i2c_addr: CX24118A tuner I2C address (0x14, 0x54, ...).
+ * @get_dvb_frontend: Get DVB frontend.
+ */
+
+struct tda10071_platform_data {
+ u32 clk;
+ u16 i2c_wr_max;
+#define TDA10071_TS_SERIAL 0
+#define TDA10071_TS_PARALLEL 1
+ u8 ts_mode;
+ bool spec_inv;
+ u8 pll_multiplier;
+ u8 tuner_i2c_addr;
+
+ struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *);
+};
+
struct tda10071_config {
/* Demodulator I2C address.
* Default: none, must set
diff --git a/drivers/media/dvb-frontends/tda10071_priv.h
b/drivers/media/dvb-frontends/tda10071_priv.h
index 03f839c..7ec69ac 100644
--- a/drivers/media/dvb-frontends/tda10071_priv.h
+++ b/drivers/media/dvb-frontends/tda10071_priv.h
@@ -28,6 +28,7 @@
struct tda10071_priv {
struct i2c_adapter *i2c;
struct dvb_frontend fe;
+ struct i2c_client *client;
struct tda10071_config cfg;
u8 meas_count[2];
--
http://palosaari.fi/
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
