[media] tda10071: implement I2C client bindings

Implement I2C client bindings.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/dvb-frontends/tda10071.c b/drivers/media/dvb-frontends/tda10071.c
index 4a19b85995f17f47018732e8c82a67847c15e0d6..31328540e5c45d21db516d28410f10d4c61619b8 100644 (file)
--- 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 <crope@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 da89f42498466cca798f4236b741e9e6fb76386f..0ffbfa5b2dfbdf3564fa55b6b2662b7207c9388e 100644 (file)
--- 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 03f839c431e934c14a3d738f86f0f9a3352de009..7ec69ac510d7cf485c293a9ba76761a70488819f 100644 (file)
--- 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];