[PATCH v4 11/18] [media] rtl2832: convert to use an explicit i2c mux core
From: Peter Rosin <peda@lysator.liu.se>
Date: 2016-03-03 22:29:39
Also in:
linux-i2c, linux-iio, linux-media, lkml
Subsystem:
media input infrastructure (v4l/dvb), rtl2832 media driver, the rest · Maintainers:
Mauro Carvalho Chehab, Linus Torvalds
From: Peter Rosin <redacted> 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 <redacted> --- 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