[PATCH v4 11/18] [media] rtl2832: convert to use an explicit i2c mux core

[Peter Rosin]

From: Peter Rosin <p...@axentia.se>

Allocate an explicit i2c mux core to handle parent and child adapters
etc. Update the select/deselect ops to be in terms of the i2c mux core
instead of the child adapter.

Signed-off-by: Peter Rosin <p...@axentia.se>
---
 drivers/media/dvb-frontends/rtl2832.c      | 22 +++++++++++-----------
 drivers/media/dvb-frontends/rtl2832_priv.h |  2 +-
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/media/dvb-frontends/rtl2832.c 
b/drivers/media/dvb-frontends/rtl2832.c
index 10f2119935da..775444898599 100644
--- a/drivers/media/dvb-frontends/rtl2832.c
+++ b/drivers/media/dvb-frontends/rtl2832.c
@@ -866,9 +866,9 @@ err:
        dev_dbg(&client->dev, "failed=%d\n", ret);
 }
 
-static int rtl2832_select(struct i2c_adapter *adap, void *mux_priv, u32 
chan_id)
+static int rtl2832_select(struct i2c_mux_core *muxc, u32 chan_id)
 {
-       struct rtl2832_dev *dev = mux_priv;
+       struct rtl2832_dev *dev = i2c_mux_priv(muxc);
        struct i2c_client *client = dev->client;
        int ret;
 
@@ -889,10 +889,9 @@ err:
        return ret;
 }
 
-static int rtl2832_deselect(struct i2c_adapter *adap, void *mux_priv,
-                           u32 chan_id)
+static int rtl2832_deselect(struct i2c_mux_core *muxc, u32 chan_id)
 {
-       struct rtl2832_dev *dev = mux_priv;
+       struct rtl2832_dev *dev = i2c_mux_priv(muxc);
 
        schedule_delayed_work(&dev->i2c_gate_work, usecs_to_jiffies(100));
        return 0;
@@ -1078,7 +1077,7 @@ static struct i2c_adapter *rtl2832_get_i2c_adapter(struct 
i2c_client *client)
        struct rtl2832_dev *dev = i2c_get_clientdata(client);
 
        dev_dbg(&client->dev, "\n");
-       return dev->i2c_adapter_tuner;
+       return dev->muxc->adapter[0];
 }
 
 static int rtl2832_enable_slave_ts(struct i2c_client *client)
@@ -1253,12 +1252,13 @@ static int rtl2832_probe(struct i2c_client *client,
                goto err_regmap_exit;
 
        /* create muxed i2c adapter for demod tuner bus */
-       dev->i2c_adapter_tuner = i2c_add_mux_adapter(i2c, &i2c->dev, dev,
-                       0, 0, 0, rtl2832_select, rtl2832_deselect);
-       if (dev->i2c_adapter_tuner == NULL) {
-               ret = -ENODEV;
+       dev->muxc = i2c_mux_one_adapter(i2c, &i2c->dev, 0, 0, 0, 0, 0,
+                                       rtl2832_select, rtl2832_deselect);
+       if (IS_ERR(dev->muxc)) {
+               ret = PTR_ERR(dev->muxc);
                goto err_regmap_exit;
        }
+       dev->muxc->priv = dev;
 
        /* create dvb_frontend */
        memcpy(&dev->fe.ops, &rtl2832_ops, sizeof(struct dvb_frontend_ops));
@@ -1293,7 +1293,7 @@ static int rtl2832_remove(struct i2c_client *client)
 
        cancel_delayed_work_sync(&dev->i2c_gate_work);
 
-       i2c_del_mux_adapter(dev->i2c_adapter_tuner);
+       i2c_mux_del_adapters(dev->muxc);
 
        regmap_exit(dev->regmap);
 
diff --git a/drivers/media/dvb-frontends/rtl2832_priv.h 
b/drivers/media/dvb-frontends/rtl2832_priv.h
index 5dcd3a41d23f..6b3cd23a2c26 100644
--- a/drivers/media/dvb-frontends/rtl2832_priv.h
+++ b/drivers/media/dvb-frontends/rtl2832_priv.h
@@ -36,7 +36,7 @@ struct rtl2832_dev {
        struct mutex regmap_mutex;
        struct regmap_config regmap_config;
        struct regmap *regmap;
-       struct i2c_adapter *i2c_adapter_tuner;
+       struct i2c_mux_core *muxc;
        struct dvb_frontend fe;
        struct delayed_work stat_work;
        enum fe_status fe_status;
-- 
2.1.4