Merge branch 'i2c/for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:

 - Peter Rosin did some major rework on the locking of i2c muxes by
   seperating parent-locked muxes and mux-locked muxes.

   This avoids deadlocks/workarounds when the mux itself needs i2c
   commands for muxing.  And as a side-effect, other workarounds in the
   media layer could be eliminated.  Also, Peter stepped up as the i2c
   mux maintainer and will keep an eye on these changes.

 - major updates to the octeon driver

 - add a helper to the core to generate the address+rw_bit octal and
   make drivers use it

 - quite a bunch of driver updates

* 'i2c/for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (84 commits)
  i2c: rcar: add DMA support
  i2c: st: Implement bus clear
  i2c: only check scl functions when using generic recovery
  i2c: algo-bit: declare i2c_bit_quirk_no_clk_stretch as static
  i2c: tegra: disable clock before returning error
  [media] rtl2832: regmap is aware of lockdep, drop local locking hack
  [media] rtl2832_sdr: get rid of empty regmap wrappers
  [media] rtl2832: change the i2c gate to be mux-locked
  [media] si2168: change the i2c gate to be mux-locked
  iio: imu: inv_mpu6050: change the i2c gate to be mux-locked
  i2c: mux: document i2c muxes and elaborate on parent-/mux-locked muxes
  i2c: mux: relax locking of the top i2c adapter during mux-locked muxing
  i2c: muxes always lock the parent adapter
  i2c: allow adapter drivers to override the adapter locking
  i2c: uniphier: add "\n" at the end of error log
  i2c: mv64xxx: remove CONFIG_HAVE_CLK conditionals
  i2c: mv64xxx: use clk_{prepare_enable,disable_unprepare}
  i2c: mv64xxx: handle probe deferral for the clock
  i2c: mv64xxx: enable the driver on ARCH_MVEBU
  i2c: octeon: Add workaround for broken irqs on CN3860
  ...

11 files changed, 236 insertions, 474 deletions

diff --git a/drivers/media/dvb-frontends/m88ds3103.c b/drivers/media/dvb-frontends/m88ds3103.c
index 76883600ec6f..5557ef8fc704 100644
--- a/drivers/media/dvb-frontends/m88ds3103.c
+++ b/drivers/media/dvb-frontends/m88ds3103.c
@@ -1251,9 +1251,9 @@ static void m88ds3103_release(struct dvb_frontend *fe)
 	i2c_unregister_device(client);
 }
 
-static int m88ds3103_select(struct i2c_adapter *adap, void *mux_priv, u32 chan)
+static int m88ds3103_select(struct i2c_mux_core *muxc, u32 chan)
 {
-	struct m88ds3103_dev *dev = mux_priv;
+	struct m88ds3103_dev *dev = i2c_mux_priv(muxc);
 	struct i2c_client *client = dev->client;
 	int ret;
 	struct i2c_msg msg = {
@@ -1374,7 +1374,7 @@ static struct i2c_adapter *m88ds3103_get_i2c_adapter(struct i2c_client *client)
 
 	dev_dbg(&client->dev, "\n");
 
-	return dev->i2c_adapter;
+	return dev->muxc->adapter[0];
 }
 
 static int m88ds3103_probe(struct i2c_client *client,
@@ -1467,13 +1467,16 @@ static int m88ds3103_probe(struct i2c_client *client,
 		goto err_kfree;
 
 	/* create mux i2c adapter for tuner */
-	dev->i2c_adapter = i2c_add_mux_adapter(client->adapter, &client->dev,
-					       dev, 0, 0, 0, m88ds3103_select,
-					       NULL);
-	if (dev->i2c_adapter == NULL) {
+	dev->muxc = i2c_mux_alloc(client->adapter, &client->dev, 1, 0, 0,
+				  m88ds3103_select, NULL);
+	if (!dev->muxc) {
 		ret = -ENOMEM;
 		goto err_kfree;
 	}
+	dev->muxc->priv = dev;
+	ret = i2c_mux_add_adapter(dev->muxc, 0, 0, 0);
+	if (ret)
+		goto err_kfree;
 
 	/* create dvb_frontend */
 	memcpy(&dev->fe.ops, &m88ds3103_ops, sizeof(struct dvb_frontend_ops));
@@ -1502,7 +1505,7 @@ static int m88ds3103_remove(struct i2c_client *client)
 
 	dev_dbg(&client->dev, "\n");
 
-	i2c_del_mux_adapter(dev->i2c_adapter);
+	i2c_mux_del_adapters(dev->muxc);
 
 	kfree(dev);
 	return 0;
diff --git a/drivers/media/dvb-frontends/m88ds3103_priv.h b/drivers/media/dvb-frontends/m88ds3103_priv.h
index 651e005146b2..d78e467295d2 100644
--- a/drivers/media/dvb-frontends/m88ds3103_priv.h
+++ b/drivers/media/dvb-frontends/m88ds3103_priv.h
@@ -42,7 +42,7 @@ struct m88ds3103_dev {
 	enum fe_status fe_status;
 	u32 dvbv3_ber; /* for old DVBv3 API read_ber */
 	bool warm; /* FW running */
-	struct i2c_adapter *i2c_adapter;
+	struct i2c_mux_core *muxc;
 	/* auto detect chip id to do different config */
 	u8 chip_id;
 	/* main mclk is calculated for M88RS6000 dynamically */
diff --git a/drivers/media/dvb-frontends/rtl2830.c b/drivers/media/dvb-frontends/rtl2830.c
index 3f96429af0e5..d25d1e0cd4ca 100644
--- a/drivers/media/dvb-frontends/rtl2830.c
+++ b/drivers/media/dvb-frontends/rtl2830.c
@@ -677,9 +677,9 @@ err:
  * adapter lock is already taken by tuner driver.
  * Gate is closed automatically after single I2C transfer.
  */
-static int rtl2830_select(struct i2c_adapter *adap, void *mux_priv, u32 chan_id)
+static int rtl2830_select(struct i2c_mux_core *muxc, u32 chan_id)
 {
-	struct i2c_client *client = mux_priv;
+	struct i2c_client *client = i2c_mux_priv(muxc);
 	struct rtl2830_dev *dev = i2c_get_clientdata(client);
 	int ret;
 
@@ -712,7 +712,7 @@ static struct i2c_adapter *rtl2830_get_i2c_adapter(struct i2c_client *client)
 
 	dev_dbg(&client->dev, "\n");
 
-	return dev->adapter;
+	return dev->muxc->adapter[0];
 }
 
 /*
@@ -865,12 +865,16 @@ static int rtl2830_probe(struct i2c_client *client,
 		goto err_regmap_exit;
 
 	/* create muxed i2c adapter for tuner */
-	dev->adapter = i2c_add_mux_adapter(client->adapter, &client->dev,
-			client, 0, 0, 0, rtl2830_select, NULL);
-	if (dev->adapter == NULL) {
-		ret = -ENODEV;
+	dev->muxc = i2c_mux_alloc(client->adapter, &client->dev, 1, 0, 0,
+				  rtl2830_select, NULL);
+	if (!dev->muxc) {
+		ret = -ENOMEM;
 		goto err_regmap_exit;
 	}
+	dev->muxc->priv = client;
+	ret = i2c_mux_add_adapter(dev->muxc, 0, 0, 0);
+	if (ret)
+		goto err_regmap_exit;
 
 	/* create dvb frontend */
 	memcpy(&dev->fe.ops, &rtl2830_ops, sizeof(dev->fe.ops));
@@ -903,7 +907,7 @@ static int rtl2830_remove(struct i2c_client *client)
 	/* stop statistics polling */
 	cancel_delayed_work_sync(&dev->stat_work);
 
-	i2c_del_mux_adapter(dev->adapter);
+	i2c_mux_del_adapters(dev->muxc);
 	regmap_exit(dev->regmap);
 	kfree(dev);
 
diff --git a/drivers/media/dvb-frontends/rtl2830_priv.h b/drivers/media/dvb-frontends/rtl2830_priv.h
index cf793f39a09b..da4909543da2 100644
--- a/drivers/media/dvb-frontends/rtl2830_priv.h
+++ b/drivers/media/dvb-frontends/rtl2830_priv.h
@@ -29,7 +29,7 @@ struct rtl2830_dev {
 	struct rtl2830_platform_data *pdata;
 	struct i2c_client *client;
 	struct regmap *regmap;
-	struct i2c_adapter *adapter;
+	struct i2c_mux_core *muxc;
 	struct dvb_frontend fe;
 	bool sleeping;
 	unsigned long filters;
diff --git a/drivers/media/dvb-frontends/rtl2832.c b/drivers/media/dvb-frontends/rtl2832.c
index 7c96f7679669..bfb6beedd40b 100644
--- a/drivers/media/dvb-frontends/rtl2832.c
+++ b/drivers/media/dvb-frontends/rtl2832.c
@@ -153,43 +153,6 @@ static const struct rtl2832_reg_entry registers[] = {
 	[DVBT_REG_4MSEL]	= {0x013,  0, 0},
 };
 
-/* Our regmap is bypassing I2C adapter lock, thus we do it! */
-static int rtl2832_bulk_write(struct i2c_client *client, unsigned int reg,
-			      const void *val, size_t val_count)
-{
-	struct rtl2832_dev *dev = i2c_get_clientdata(client);
-	int ret;
-
-	i2c_lock_adapter(client->adapter);
-	ret = regmap_bulk_write(dev->regmap, reg, val, val_count);
-	i2c_unlock_adapter(client->adapter);
-	return ret;
-}
-
-static int rtl2832_update_bits(struct i2c_client *client, unsigned int reg,
-			       unsigned int mask, unsigned int val)
-{
-	struct rtl2832_dev *dev = i2c_get_clientdata(client);
-	int ret;
-
-	i2c_lock_adapter(client->adapter);
-	ret = regmap_update_bits(dev->regmap, reg, mask, val);
-	i2c_unlock_adapter(client->adapter);
-	return ret;
-}
-
-static int rtl2832_bulk_read(struct i2c_client *client, unsigned int reg,
-			     void *val, size_t val_count)
-{
-	struct rtl2832_dev *dev = i2c_get_clientdata(client);
-	int ret;
-
-	i2c_lock_adapter(client->adapter);
-	ret = regmap_bulk_read(dev->regmap, reg, val, val_count);
-	i2c_unlock_adapter(client->adapter);
-	return ret;
-}
-
 static int rtl2832_rd_demod_reg(struct rtl2832_dev *dev, int reg, u32 *val)
 {
 	struct i2c_client *client = dev->client;
@@ -204,7 +167,7 @@ static int rtl2832_rd_demod_reg(struct rtl2832_dev *dev, int reg, u32 *val)
 	len = (msb >> 3) + 1;
 	mask = REG_MASK(msb - lsb);
 
-	ret = rtl2832_bulk_read(client, reg_start_addr, reading, len);
+	ret = regmap_bulk_read(dev->regmap, reg_start_addr, reading, len);
 	if (ret)
 		goto err;
 
@@ -234,7 +197,7 @@ static int rtl2832_wr_demod_reg(struct rtl2832_dev *dev, int reg, u32 val)
 	len = (msb >> 3) + 1;
 	mask = REG_MASK(msb - lsb);
 
-	ret = rtl2832_bulk_read(client, reg_start_addr, reading, len);
+	ret = regmap_bulk_read(dev->regmap, reg_start_addr, reading, len);
 	if (ret)
 		goto err;
 
@@ -248,7 +211,7 @@ static int rtl2832_wr_demod_reg(struct rtl2832_dev *dev, int reg, u32 val)
 	for (i = 0; i < len; i++)
 		writing[i] = (writing_tmp >> ((len - 1 - i) * 8)) & 0xff;
 
-	ret = rtl2832_bulk_write(client, reg_start_addr, writing, len);
+	ret = regmap_bulk_write(dev->regmap, reg_start_addr, writing, len);
 	if (ret)
 		goto err;
 
@@ -525,7 +488,8 @@ static int rtl2832_set_frontend(struct dvb_frontend *fe)
 	}
 
 	for (j = 0; j < sizeof(bw_params[0]); j++) {
-		ret = rtl2832_bulk_write(client, 0x11c + j, &bw_params[i][j], 1);
+		ret = regmap_bulk_write(dev->regmap,
+					0x11c + j, &bw_params[i][j], 1);
 		if (ret)
 			goto err;
 	}
@@ -581,11 +545,11 @@ static int rtl2832_get_frontend(struct dvb_frontend *fe,
 	if (dev->sleeping)
 		return 0;
 
-	ret = rtl2832_bulk_read(client, 0x33c, buf, 2);
+	ret = regmap_bulk_read(dev->regmap, 0x33c, buf, 2);
 	if (ret)
 		goto err;
 
-	ret = rtl2832_bulk_read(client, 0x351, &buf[2], 1);
+	ret = regmap_bulk_read(dev->regmap, 0x351, &buf[2], 1);
 	if (ret)
 		goto err;
 
@@ -716,7 +680,7 @@ static int rtl2832_read_status(struct dvb_frontend *fe, enum fe_status *status)
 	/* signal strength */
 	if (dev->fe_status & FE_HAS_SIGNAL) {
 		/* read digital AGC */
-		ret = rtl2832_bulk_read(client, 0x305, &u8tmp, 1);
+		ret = regmap_bulk_read(dev->regmap, 0x305, &u8tmp, 1);
 		if (ret)
 			goto err;
 
@@ -742,7 +706,7 @@ static int rtl2832_read_status(struct dvb_frontend *fe, enum fe_status *status)
 			{87659938, 87659938, 87885178, 88241743},
 		};
 
-		ret = rtl2832_bulk_read(client, 0x33c, &u8tmp, 1);
+		ret = regmap_bulk_read(dev->regmap, 0x33c, &u8tmp, 1);
 		if (ret)
 			goto err;
 
@@ -754,7 +718,7 @@ static int rtl2832_read_status(struct dvb_frontend *fe, enum fe_status *status)
 		if (hierarchy > HIERARCHY_NUM - 1)
 			goto err;
 
-		ret = rtl2832_bulk_read(client, 0x40c, buf, 2);
+		ret = regmap_bulk_read(dev->regmap, 0x40c, buf, 2);
 		if (ret)
 			goto err;
 
@@ -775,7 +739,7 @@ static int rtl2832_read_status(struct dvb_frontend *fe, enum fe_status *status)
 
 	/* BER */
 	if (dev->fe_status & FE_HAS_LOCK) {
-		ret = rtl2832_bulk_read(client, 0x34e, buf, 2);
+		ret = regmap_bulk_read(dev->regmap, 0x34e, buf, 2);
 		if (ret)
 			goto err;
 
@@ -825,8 +789,6 @@ static int rtl2832_read_ber(struct dvb_frontend *fe, u32 *ber)
 
 /*
  * I2C gate/mux/repeater logic
- * We must use unlocked __i2c_transfer() here (through regmap) because of I2C
- * adapter lock is already taken by tuner driver.
  * There is delay mechanism to avoid unneeded I2C gate open / close. Gate close
  * is delayed here a little bit in order to see if there is sequence of I2C
  * messages sent to same I2C bus.
@@ -838,7 +800,7 @@ static void rtl2832_i2c_gate_work(struct work_struct *work)
 	int ret;
 
 	/* close gate */
-	ret = rtl2832_update_bits(dev->client, 0x101, 0x08, 0x00);
+	ret = regmap_update_bits(dev->regmap, 0x101, 0x08, 0x00);
 	if (ret)
 		goto err;
 
@@ -847,19 +809,16 @@ 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;
 
 	/* terminate possible gate closing */
 	cancel_delayed_work(&dev->i2c_gate_work);
 
-	/*
-	 * I2C adapter lock is already taken and due to that we will use
-	 * regmap_update_bits() which does not lock again I2C adapter.
-	 */
+	/* open gate */
 	ret = regmap_update_bits(dev->regmap, 0x101, 0x08, 0x08);
 	if (ret)
 		goto err;
@@ -870,10 +829,9 @@ 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;
@@ -932,120 +890,6 @@ static bool rtl2832_volatile_reg(struct device *dev, unsigned int reg)
 	return false;
 }
 
-/*
- * We implement own I2C access routines for regmap in order to get manual access
- * to I2C adapter lock, which is needed for I2C mux adapter.
- */
-static int rtl2832_regmap_read(void *context, const void *reg_buf,
-			       size_t reg_size, void *val_buf, size_t val_size)
-{
-	struct i2c_client *client = context;
-	int ret;
-	struct i2c_msg msg[2] = {
-		{
-			.addr = client->addr,
-			.flags = 0,
-			.len = reg_size,
-			.buf = (u8 *)reg_buf,
-		}, {
-			.addr = client->addr,
-			.flags = I2C_M_RD,
-			.len = val_size,
-			.buf = val_buf,
-		}
-	};
-
-	ret = __i2c_transfer(client->adapter, msg, 2);
-	if (ret != 2) {
-		dev_warn(&client->dev, "i2c reg read failed %d reg %02x\n",
-			 ret, *(u8 *)reg_buf);
-		if (ret >= 0)
-			ret = -EREMOTEIO;
-		return ret;
-	}
-	return 0;
-}
-
-static int rtl2832_regmap_write(void *context, const void *data, size_t count)
-{
-	struct i2c_client *client = context;
-	int ret;
-	struct i2c_msg msg[1] = {
-		{
-			.addr = client->addr,
-			.flags = 0,
-			.len = count,
-			.buf = (u8 *)data,
-		}
-	};
-
-	ret = __i2c_transfer(client->adapter, msg, 1);
-	if (ret != 1) {
-		dev_warn(&client->dev, "i2c reg write failed %d reg %02x\n",
-			 ret, *(u8 *)data);
-		if (ret >= 0)
-			ret = -EREMOTEIO;
-		return ret;
-	}
-	return 0;
-}
-
-static int rtl2832_regmap_gather_write(void *context, const void *reg,
-				       size_t reg_len, const void *val,
-				       size_t val_len)
-{
-	struct i2c_client *client = context;
-	int ret;
-	u8 buf[256];
-	struct i2c_msg msg[1] = {
-		{
-			.addr = client->addr,
-			.flags = 0,
-			.len = 1 + val_len,
-			.buf = buf,
-		}
-	};
-
-	buf[0] = *(u8 const *)reg;
-	memcpy(&buf[1], val, val_len);
-
-	ret = __i2c_transfer(client->adapter, msg, 1);
-	if (ret != 1) {
-		dev_warn(&client->dev, "i2c reg write failed %d reg %02x\n",
-			 ret, *(u8 const *)reg);
-		if (ret >= 0)
-			ret = -EREMOTEIO;
-		return ret;
-	}
-	return 0;
-}
-
-/*
- * FIXME: Hack. Implement own regmap locking in order to silence lockdep
- * recursive lock warning. That happens when regmap I2C client calls I2C mux
- * adapter, which leads demod I2C repeater enable via demod regmap. Operation
- * takes two regmap locks recursively - but those are different regmap instances
- * in a two different I2C drivers, so it is not deadlock. Proper fix is to make
- * regmap aware of lockdep.
- */
-static void rtl2832_regmap_lock(void *__dev)
-{
-	struct rtl2832_dev *dev = __dev;
-	struct i2c_client *client = dev->client;
-
-	dev_dbg(&client->dev, "\n");
-	mutex_lock(&dev->regmap_mutex);
-}
-
-static void rtl2832_regmap_unlock(void *__dev)
-{
-	struct rtl2832_dev *dev = __dev;
-	struct i2c_client *client = dev->client;
-
-	dev_dbg(&client->dev, "\n");
-	mutex_unlock(&dev->regmap_mutex);
-}
-
 static struct dvb_frontend *rtl2832_get_dvb_frontend(struct i2c_client *client)
 {
 	struct rtl2832_dev *dev = i2c_get_clientdata(client);
@@ -1059,7 +903,7 @@ 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_slave_ts_ctrl(struct i2c_client *client, bool enable)
@@ -1073,29 +917,29 @@ static int rtl2832_slave_ts_ctrl(struct i2c_client *client, bool enable)
 		ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x0);
 		if (ret)
 			goto err;
-		ret = rtl2832_bulk_write(client, 0x10c, "\x5f\xff", 2);
+		ret = regmap_bulk_write(dev->regmap, 0x10c, "\x5f\xff", 2);
 		if (ret)
 			goto err;
 		ret = rtl2832_wr_demod_reg(dev, DVBT_PIP_ON, 0x1);
 		if (ret)
 			goto err;
-		ret = rtl2832_bulk_write(client, 0x0bc, "\x18", 1);
+		ret = regmap_bulk_write(dev->regmap, 0x0bc, "\x18", 1);
 		if (ret)
 			goto err;
-		ret = rtl2832_bulk_write(client, 0x192, "\x7f\xf7\xff", 3);
+		ret = regmap_bulk_write(dev->regmap, 0x192, "\x7f\xf7\xff", 3);
 		if (ret)
 			goto err;
 	} else {
-		ret = rtl2832_bulk_write(client, 0x192, "\x00\x0f\xff", 3);
+		ret = regmap_bulk_write(dev->regmap, 0x192, "\x00\x0f\xff", 3);
 		if (ret)
 			goto err;
-		ret = rtl2832_bulk_write(client, 0x0bc, "\x08", 1);
+		ret = regmap_bulk_write(dev->regmap, 0x0bc, "\x08", 1);
 		if (ret)
 			goto err;
 		ret = rtl2832_wr_demod_reg(dev, DVBT_PIP_ON, 0x0);
 		if (ret)
 			goto err;
-		ret = rtl2832_bulk_write(client, 0x10c, "\x00\x00", 2);
+		ret = regmap_bulk_write(dev->regmap, 0x10c, "\x00\x00", 2);
 		if (ret)
 			goto err;
 		ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x1);
@@ -1124,7 +968,7 @@ static int rtl2832_pid_filter_ctrl(struct dvb_frontend *fe, int onoff)
 	else
 		u8tmp = 0x00;
 
-	ret = rtl2832_update_bits(client, 0x061, 0xc0, u8tmp);
+	ret = regmap_update_bits(dev->regmap, 0x061, 0xc0, u8tmp);
 	if (ret)
 		goto err;
 
@@ -1159,14 +1003,14 @@ static int rtl2832_pid_filter(struct dvb_frontend *fe, u8 index, u16 pid,
 	buf[1] = (dev->filters >>  8) & 0xff;
 	buf[2] = (dev->filters >> 16) & 0xff;
 	buf[3] = (dev->filters >> 24) & 0xff;
-	ret = rtl2832_bulk_write(client, 0x062, buf, 4);
+	ret = regmap_bulk_write(dev->regmap, 0x062, buf, 4);
 	if (ret)
 		goto err;
 
 	/* add PID */
 	buf[0] = (pid >> 8) & 0xff;
 	buf[1] = (pid >> 0) & 0xff;
-	ret = rtl2832_bulk_write(client, 0x066 + 2 * index, buf, 2);
+	ret = regmap_bulk_write(dev->regmap, 0x066 + 2 * index, buf, 2);
 	if (ret)
 		goto err;
 
@@ -1184,12 +1028,6 @@ static int rtl2832_probe(struct i2c_client *client,
 	struct rtl2832_dev *dev;
 	int ret;
 	u8 tmp;
-	static const struct regmap_bus regmap_bus = {
-		.read = rtl2832_regmap_read,
-		.write = rtl2832_regmap_write,
-		.gather_write = rtl2832_regmap_gather_write,
-		.val_format_endian_default = REGMAP_ENDIAN_NATIVE,
-	};
 	static const struct regmap_range_cfg regmap_range_cfg[] = {
 		{
 			.selector_reg     = 0x00,
@@ -1218,36 +1056,35 @@ static int rtl2832_probe(struct i2c_client *client,
 	dev->sleeping = true;
 	INIT_DELAYED_WORK(&dev->i2c_gate_work, rtl2832_i2c_gate_work);
 	/* create regmap */
-	mutex_init(&dev->regmap_mutex);
 	dev->regmap_config.reg_bits =  8,
 	dev->regmap_config.val_bits =  8,
-	dev->regmap_config.lock = rtl2832_regmap_lock,
-	dev->regmap_config.unlock = rtl2832_regmap_unlock,
-	dev->regmap_config.lock_arg = dev,
 	dev->regmap_config.volatile_reg = rtl2832_volatile_reg,
 	dev->regmap_config.max_register = 5 * 0x100,
 	dev->regmap_config.ranges = regmap_range_cfg,
 	dev->regmap_config.num_ranges = ARRAY_SIZE(regmap_range_cfg),
 	dev->regmap_config.cache_type = REGCACHE_NONE,
-	dev->regmap = regmap_init(&client->dev, &regmap_bus, client,
-				  &dev->regmap_config);
+	dev->regmap = regmap_init_i2c(client, &dev->regmap_config);
 	if (IS_ERR(dev->regmap)) {
 		ret = PTR_ERR(dev->regmap);
 		goto err_kfree;
 	}
 
 	/* check if the demod is there */
-	ret = rtl2832_bulk_read(client, 0x000, &tmp, 1);
+	ret = regmap_bulk_read(dev->regmap, 0x000, &tmp, 1);
 	if (ret)
 		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_alloc(i2c, &i2c->dev, 1, 0, I2C_MUX_LOCKED,
+				  rtl2832_select, rtl2832_deselect);
+	if (!dev->muxc) {
+		ret = -ENOMEM;
 		goto err_regmap_exit;
 	}
+	dev->muxc->priv = dev;
+	ret = i2c_mux_add_adapter(dev->muxc, 0, 0, 0);
+	if (ret)
+		goto err_regmap_exit;
 
 	/* create dvb_frontend */
 	memcpy(&dev->fe.ops, &rtl2832_ops, sizeof(struct dvb_frontend_ops));
@@ -1259,9 +1096,7 @@ static int rtl2832_probe(struct i2c_client *client,
 	pdata->slave_ts_ctrl = rtl2832_slave_ts_ctrl;
 	pdata->pid_filter = rtl2832_pid_filter;
 	pdata->pid_filter_ctrl = rtl2832_pid_filter_ctrl;
-	pdata->bulk_read = rtl2832_bulk_read;
-	pdata->bulk_write = rtl2832_bulk_write;
-	pdata->update_bits = rtl2832_update_bits;
+	pdata->regmap = dev->regmap;
 
 	dev_info(&client->dev, "Realtek RTL2832 successfully attached\n");
 	return 0;
@@ -1282,7 +1117,7 @@ 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.h b/drivers/media/dvb-frontends/rtl2832.h
index 6390af64cf45..03c0de039fa9 100644
--- a/drivers/media/dvb-frontends/rtl2832.h
+++ b/drivers/media/dvb-frontends/rtl2832.h
@@ -57,9 +57,7 @@ struct rtl2832_platform_data {
 	int (*pid_filter)(struct dvb_frontend *, u8, u16, int);
 	int (*pid_filter_ctrl)(struct dvb_frontend *, int);
 /* private: Register access for SDR module use only */
-	int (*bulk_read)(struct i2c_client *, unsigned int, void *, size_t);
-	int (*bulk_write)(struct i2c_client *, unsigned int, const void *, size_t);
-	int (*update_bits)(struct i2c_client *, unsigned int, unsigned int, unsigned int);
+	struct regmap *regmap;
 };
 
 #endif /* RTL2832_H */
diff --git a/drivers/media/dvb-frontends/rtl2832_priv.h b/drivers/media/dvb-frontends/rtl2832_priv.h
index 6b875f462f8b..c1a8a69e9015 100644
--- a/drivers/media/dvb-frontends/rtl2832_priv.h
+++ b/drivers/media/dvb-frontends/rtl2832_priv.h
@@ -33,10 +33,9 @@
 struct rtl2832_dev {
 	struct rtl2832_platform_data *pdata;
 	struct i2c_client *client;
-	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;
 	enum fe_status fe_status;
 	u64 post_bit_error_prev; /* for old DVBv3 read_ber() calculation */
diff --git a/drivers/media/dvb-frontends/rtl2832_sdr.c b/drivers/media/dvb-frontends/rtl2832_sdr.c
index b860f02a4e55..47a480a7d46c 100644
--- a/drivers/media/dvb-frontends/rtl2832_sdr.c
+++ b/drivers/media/dvb-frontends/rtl2832_sdr.c
@@ -35,6 +35,7 @@
 #include <linux/platform_device.h>
 #include <linux/jiffies.h>
 #include <linux/math64.h>
+#include <linux/regmap.h>
 
 static bool rtl2832_sdr_emulated_fmt;
 module_param_named(emulated_formats, rtl2832_sdr_emulated_fmt, bool, 0644);
@@ -119,6 +120,7 @@ struct rtl2832_sdr_dev {
 	unsigned long flags;
 
 	struct platform_device *pdev;
+	struct regmap *regmap;
 
 	struct video_device vdev;
 	struct v4l2_device v4l2_dev;
@@ -163,47 +165,6 @@ struct rtl2832_sdr_dev {
 	unsigned long jiffies_next;
 };
 
-/* write multiple registers */
-static int rtl2832_sdr_wr_regs(struct rtl2832_sdr_dev *dev, u16 reg,
-		const u8 *val, int len)
-{
-	struct platform_device *pdev = dev->pdev;
-	struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data;
-	struct i2c_client *client = pdata->i2c_client;
-
-	return pdata->bulk_write(client, reg, val, len);
-}
-
-#if 0
-/* read multiple registers */
-static int rtl2832_sdr_rd_regs(struct rtl2832_sdr_dev *dev, u16 reg, u8 *val,
-		int len)
-{
-	struct platform_device *pdev = dev->pdev;
-	struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data;
-	struct i2c_client *client = pdata->i2c_client;
-
-	return pdata->bulk_read(client, reg, val, len);
-}
-#endif
-
-/* write single register */
-static int rtl2832_sdr_wr_reg(struct rtl2832_sdr_dev *dev, u16 reg, u8 val)
-{
-	return rtl2832_sdr_wr_regs(dev, reg, &val, 1);
-}
-
-/* write single register with mask */
-static int rtl2832_sdr_wr_reg_mask(struct rtl2832_sdr_dev *dev, u16 reg,
-		u8 val, u8 mask)
-{
-	struct platform_device *pdev = dev->pdev;
-	struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data;
-	struct i2c_client *client = pdata->i2c_client;
-
-	return pdata->update_bits(client, reg, mask, val);
-}
-
 /* Private functions */
 static struct rtl2832_sdr_frame_buf *rtl2832_sdr_get_next_fill_buf(
 		struct rtl2832_sdr_dev *dev)
@@ -558,11 +519,11 @@ static int rtl2832_sdr_set_adc(struct rtl2832_sdr_dev *dev)
 
 	f_sr = dev->f_adc;
 
-	ret = rtl2832_sdr_wr_regs(dev, 0x13e, "\x00\x00", 2);
+	ret = regmap_bulk_write(dev->regmap, 0x13e, "\x00\x00", 2);
 	if (ret)
 		goto err;
 
-	ret = rtl2832_sdr_wr_regs(dev, 0x115, "\x00\x00\x00\x00", 4);
+	ret = regmap_bulk_write(dev->regmap, 0x115, "\x00\x00\x00\x00", 4);
 	if (ret)
 		goto err;
 
@@ -588,7 +549,7 @@ static int rtl2832_sdr_set_adc(struct rtl2832_sdr_dev *dev)
 	buf[1] = (u32tmp >>  8) & 0xff;
 	buf[2] = (u32tmp >>  0) & 0xff;
 
-	ret = rtl2832_sdr_wr_regs(dev, 0x119, buf, 3);
+	ret = regmap_bulk_write(dev->regmap, 0x119, buf, 3);
 	if (ret)
 		goto err;
 
@@ -602,15 +563,15 @@ static int rtl2832_sdr_set_adc(struct rtl2832_sdr_dev *dev)
 		u8tmp2 = 0xcd; /* enable ADC I, ADC Q */
 	}
 
-	ret = rtl2832_sdr_wr_reg(dev, 0x1b1, u8tmp1);
+	ret = regmap_write(dev->regmap, 0x1b1, u8tmp1);
 	if (ret)
 		goto err;
 
-	ret = rtl2832_sdr_wr_reg(dev, 0x008, u8tmp2);
+	ret = regmap_write(dev->regmap, 0x008, u8tmp2);
 	if (ret)
 		goto err;
 
-	ret = rtl2832_sdr_wr_reg(dev, 0x006, 0x80);
+	ret = regmap_write(dev->regmap, 0x006, 0x80);
 	if (ret)
 		goto err;
 
@@ -621,168 +582,169 @@ static int rtl2832_sdr_set_adc(struct rtl2832_sdr_dev *dev)
 	buf[1] = (u32tmp >> 16) & 0xff;
 	buf[2] = (u32tmp >>  8) & 0xff;
 	buf[3] = (u32tmp >>  0) & 0xff;
-	ret = rtl2832_sdr_wr_regs(dev, 0x19f, buf, 4);
+	ret = regmap_bulk_write(dev->regmap, 0x19f, buf, 4);
 	if (ret)
 		goto err;
 
 	/* low-pass filter */
-	ret = rtl2832_sdr_wr_regs(dev, 0x11c,
-			"\xca\xdc\xd7\xd8\xe0\xf2\x0e\x35\x06\x50\x9c\x0d\x71\x11\x14\x71\x74\x19\x41\xa5",
-			20);
+	ret = regmap_bulk_write(dev->regmap, 0x11c,
+				"\xca\xdc\xd7\xd8\xe0\xf2\x0e\x35\x06\x50\x9c\x0d\x71\x11\x14\x71\x74\x19\x41\xa5",
+				20);
 	if (ret)
 		goto err;
 
-	ret = rtl2832_sdr_wr_regs(dev, 0x017, "\x11\x10", 2);
+	ret = regmap_bulk_write(dev->regmap, 0x017, "\x11\x10", 2);
 	if (ret)
 		goto err;
 
 	/* mode */
-	ret = rtl2832_sdr_wr_regs(dev, 0x019, "\x05", 1);
+	ret = regmap_write(dev->regmap, 0x019, 0x05);
 	if (ret)
 		goto err;
 
-	ret = rtl2832_sdr_wr_regs(dev, 0x01a, "\x1b\x16\x0d\x06\x01\xff", 6);
+	ret = regmap_bulk_write(dev->regmap, 0x01a,
+				"\x1b\x16\x0d\x06\x01\xff", 6);
 	if (ret)
 		goto err;
 
 	/* FSM */
-	ret = rtl2832_sdr_wr_regs(dev, 0x192, "\x00\xf0\x0f", 3);
+	ret = regmap_bulk_write(dev->regmap, 0x192, "\x00\xf0\x0f", 3);
 	if (ret)
 		goto err;
 
 	/* PID filter */
-	ret = rtl2832_sdr_wr_regs(dev, 0x061, "\x60", 1);
+	ret = regmap_write(dev->regmap, 0x061, 0x60);
 	if (ret)
 		goto err;
 
 	/* used RF tuner based settings */
 	switch (pdata->tuner) {
 	case RTL2832_SDR_TUNER_E4000:
-		ret = rtl2832_sdr_wr_regs(dev, 0x112, "\x5a", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x102, "\x40", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x103, "\x5a", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1c7, "\x30", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x104, "\xd0", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x105, "\xbe", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1c8, "\x18", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x106, "\x35", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1c9, "\x21", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1ca, "\x21", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1cb, "\x00", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x107, "\x40", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1cd, "\x10", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1ce, "\x10", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x108, "\x80", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x109, "\x7f", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x10a, "\x80", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x10b, "\x7f", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x00e, "\xfc", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x00e, "\xfc", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x011, "\xd4", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1e5, "\xf0", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1d9, "\x00", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1db, "\x00", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1dd, "\x14", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1de, "\xec", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1d8, "\x0c", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1e6, "\x02", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1d7, "\x09", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x00d, "\x83", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x010, "\x49", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x00d, "\x87", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x00d, "\x85", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x013, "\x02", 1);
+		ret = regmap_write(dev->regmap, 0x112, 0x5a);
+		ret = regmap_write(dev->regmap, 0x102, 0x40);
+		ret = regmap_write(dev->regmap, 0x103, 0x5a);
+		ret = regmap_write(dev->regmap, 0x1c7, 0x30);
+		ret = regmap_write(dev->regmap, 0x104, 0xd0);
+		ret = regmap_write(dev->regmap, 0x105, 0xbe);
+		ret = regmap_write(dev->regmap, 0x1c8, 0x18);
+		ret = regmap_write(dev->regmap, 0x106, 0x35);
+		ret = regmap_write(dev->regmap, 0x1c9, 0x21);
+		ret = regmap_write(dev->regmap, 0x1ca, 0x21);
+		ret = regmap_write(dev->regmap, 0x1cb, 0x00);
+		ret = regmap_write(dev->regmap, 0x107, 0x40);
+		ret = regmap_write(dev->regmap, 0x1cd, 0x10);
+		ret = regmap_write(dev->regmap, 0x1ce, 0x10);
+		ret = regmap_write(dev->regmap, 0x108, 0x80);
+		ret = regmap_write(dev->regmap, 0x109, 0x7f);
+		ret = regmap_write(dev->regmap, 0x10a, 0x80);
+		ret = regmap_write(dev->regmap, 0x10b, 0x7f);
+		ret = regmap_write(dev->regmap, 0x00e, 0xfc);
+		ret = regmap_write(dev->regmap, 0x00e, 0xfc);
+		ret = regmap_write(dev->regmap, 0x011, 0xd4);
+		ret = regmap_write(dev->regmap, 0x1e5, 0xf0);
+		ret = regmap_write(dev->regmap, 0x1d9, 0x00);
+		ret = regmap_write(dev->regmap, 0x1db, 0x00);
+		ret = regmap_write(dev->regmap, 0x1dd, 0x14);
+		ret = regmap_write(dev->regmap, 0x1de, 0xec);
+		ret = regmap_write(dev->regmap, 0x1d8, 0x0c);
+		ret = regmap_write(dev->regmap, 0x1e6, 0x02);
+		ret = regmap_write(dev->regmap, 0x1d7, 0x09);
+		ret = regmap_write(dev->regmap, 0x00d, 0x83);
+		ret = regmap_write(dev->regmap, 0x010, 0x49);
+		ret = regmap_write(dev->regmap, 0x00d, 0x87);
+		ret = regmap_write(dev->regmap, 0x00d, 0x85);
+		ret = regmap_write(dev->regmap, 0x013, 0x02);
 		break;
 	case RTL2832_SDR_TUNER_FC0012:
 	case RTL2832_SDR_TUNER_FC0013:
-		ret = rtl2832_sdr_wr_regs(dev, 0x112, "\x5a", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x102, "\x40", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x103, "\x5a", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1c7, "\x2c", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x104, "\xcc", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x105, "\xbe", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1c8, "\x16", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x106, "\x35", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1c9, "\x21", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1ca, "\x21", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1cb, "\x00", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x107, "\x40", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1cd, "\x10", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1ce, "\x10", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x108, "\x80", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x109, "\x7f", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x10a, "\x80", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x10b, "\x7f", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x00e, "\xfc", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x00e, "\xfc", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x011, "\xe9\xbf", 2);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1e5, "\xf0", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1d9, "\x00", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1db, "\x00", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1dd, "\x11", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1de, "\xef", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1d8, "\x0c", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1e6, "\x02", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1d7, "\x09", 1);
+		ret = regmap_write(dev->regmap, 0x112, 0x5a);
+		ret = regmap_write(dev->regmap, 0x102, 0x40);
+		ret = regmap_write(dev->regmap, 0x103, 0x5a);
+		ret = regmap_write(dev->regmap, 0x1c7, 0x2c);
+		ret = regmap_write(dev->regmap, 0x104, 0xcc);
+		ret = regmap_write(dev->regmap, 0x105, 0xbe);
+		ret = regmap_write(dev->regmap, 0x1c8, 0x16);
+		ret = regmap_write(dev->regmap, 0x106, 0x35);
+		ret = regmap_write(dev->regmap, 0x1c9, 0x21);
+		ret = regmap_write(dev->regmap, 0x1ca, 0x21);
+		ret = regmap_write(dev->regmap, 0x1cb, 0x00);
+		ret = regmap_write(dev->regmap, 0x107, 0x40);
+		ret = regmap_write(dev->regmap, 0x1cd, 0x10);
+		ret = regmap_write(dev->regmap, 0x1ce, 0x10);
+		ret = regmap_write(dev->regmap, 0x108, 0x80);
+		ret = regmap_write(dev->regmap, 0x109, 0x7f);
+		ret = regmap_write(dev->regmap, 0x10a, 0x80);
+		ret = regmap_write(dev->regmap, 0x10b, 0x7f);
+		ret = regmap_write(dev->regmap, 0x00e, 0xfc);
+		ret = regmap_write(dev->regmap, 0x00e, 0xfc);
+		ret = regmap_bulk_write(dev->regmap, 0x011, "\xe9\xbf", 2);
+		ret = regmap_write(dev->regmap, 0x1e5, 0xf0);
+		ret = regmap_write(dev->regmap, 0x1d9, 0x00);
+		ret = regmap_write(dev->regmap, 0x1db, 0x00);
+		ret = regmap_write(dev->regmap, 0x1dd, 0x11);
+		ret = regmap_write(dev->regmap, 0x1de, 0xef);
+		ret = regmap_write(dev->regmap, 0x1d8, 0x0c);
+		ret = regmap_write(dev->regmap, 0x1e6, 0x02);
+		ret = regmap_write(dev->regmap, 0x1d7, 0x09);
 		break;
 	case RTL2832_SDR_TUNER_R820T:
 	case RTL2832_SDR_TUNER_R828D:
-		ret = rtl2832_sdr_wr_regs(dev, 0x112, "\x5a", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x102, "\x40", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x115, "\x01", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x103, "\x80", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1c7, "\x24", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x104, "\xcc", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x105, "\xbe", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1c8, "\x14", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x106, "\x35", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1c9, "\x21", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1ca, "\x21", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1cb, "\x00", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x107, "\x40", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1cd, "\x10", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1ce, "\x10", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x108, "\x80", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x109, "\x7f", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x10a, "\x80", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x10b, "\x7f", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x00e, "\xfc", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x00e, "\xfc", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x011, "\xf4", 1);
+		ret = regmap_write(dev->regmap, 0x112, 0x5a);
+		ret = regmap_write(dev->regmap, 0x102, 0x40);
+		ret = regmap_write(dev->regmap, 0x115, 0x01);
+		ret = regmap_write(dev->regmap, 0x103, 0x80);
+		ret = regmap_write(dev->regmap, 0x1c7, 0x24);
+		ret = regmap_write(dev->regmap, 0x104, 0xcc);
+		ret = regmap_write(dev->regmap, 0x105, 0xbe);
+		ret = regmap_write(dev->regmap, 0x1c8, 0x14);
+		ret = regmap_write(dev->regmap, 0x106, 0x35);
+		ret = regmap_write(dev->regmap, 0x1c9, 0x21);
+		ret = regmap_write(dev->regmap, 0x1ca, 0x21);
+		ret = regmap_write(dev->regmap, 0x1cb, 0x00);
+		ret = regmap_write(dev->regmap, 0x107, 0x40);
+		ret = regmap_write(dev->regmap, 0x1cd, 0x10);
+		ret = regmap_write(dev->regmap, 0x1ce, 0x10);
+		ret = regmap_write(dev->regmap, 0x108, 0x80);
+		ret = regmap_write(dev->regmap, 0x109, 0x7f);
+		ret = regmap_write(dev->regmap, 0x10a, 0x80);
+		ret = regmap_write(dev->regmap, 0x10b, 0x7f);
+		ret = regmap_write(dev->regmap, 0x00e, 0xfc);
+		ret = regmap_write(dev->regmap, 0x00e, 0xfc);
+		ret = regmap_write(dev->regmap, 0x011, 0xf4);
 		break;
 	case RTL2832_SDR_TUNER_FC2580:
-		ret = rtl2832_sdr_wr_regs(dev, 0x112, "\x39", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x102, "\x40", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x103, "\x5a", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1c7, "\x2c", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x104, "\xcc", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x105, "\xbe", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1c8, "\x16", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x106, "\x35", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1c9, "\x21", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1ca, "\x21", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1cb, "\x00", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x107, "\x40", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1cd, "\x10", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x1ce, "\x10", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x108, "\x80", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x109, "\x7f", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x10a, "\x9c", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x10b, "\x7f", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x00e, "\xfc", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x00e, "\xfc", 1);
-		ret = rtl2832_sdr_wr_regs(dev, 0x011, "\xe9\xf4", 2);
+		ret = regmap_write(dev->regmap, 0x112, 0x39);
+		ret = regmap_write(dev->regmap, 0x102, 0x40);
+		ret = regmap_write(dev->regmap, 0x103, 0x5a);
+		ret = regmap_write(dev->regmap, 0x1c7, 0x2c);
+		ret = regmap_write(dev->regmap, 0x104, 0xcc);
+		ret = regmap_write(dev->regmap, 0x105, 0xbe);
+		ret = regmap_write(dev->regmap, 0x1c8, 0x16);
+		ret = regmap_write(dev->regmap, 0x106, 0x35);
+		ret = regmap_write(dev->regmap, 0x1c9, 0x21);
+		ret = regmap_write(dev->regmap, 0x1ca, 0x21);
+		ret = regmap_write(dev->regmap, 0x1cb, 0x00);
+		ret = regmap_write(dev->regmap, 0x107, 0x40);
+		ret = regmap_write(dev->regmap, 0x1cd, 0x10);
+		ret = regmap_write(dev->regmap, 0x1ce, 0x10);
+		ret = regmap_write(dev->regmap, 0x108, 0x80);
+		ret = regmap_write(dev->regmap, 0x109, 0x7f);
+		ret = regmap_write(dev->regmap, 0x10a, 0x9c);
+		ret = regmap_write(dev->regmap, 0x10b, 0x7f);
+		ret = regmap_write(dev->regmap, 0x00e, 0xfc);
+		ret = regmap_write(dev->regmap, 0x00e, 0xfc);
+		ret = regmap_bulk_write(dev->regmap, 0x011, "\xe9\xf4", 2);
 		break;
 	default:
 		dev_notice(&pdev->dev, "Unsupported tuner\n");
 	}
 
 	/* software reset */
-	ret = rtl2832_sdr_wr_reg_mask(dev, 0x101, 0x04, 0x04);
+	ret = regmap_update_bits(dev->regmap, 0x101, 0x04, 0x04);
 	if (ret)
 		goto err;
 
-	ret = rtl2832_sdr_wr_reg_mask(dev, 0x101, 0x00, 0x04);
+	ret = regmap_update_bits(dev->regmap, 0x101, 0x04, 0x00);
 	if (ret)
 		goto err;
 err:
@@ -797,29 +759,29 @@ static void rtl2832_sdr_unset_adc(struct rtl2832_sdr_dev *dev)
 	dev_dbg(&pdev->dev, "\n");
 
 	/* PID filter */
-	ret = rtl2832_sdr_wr_regs(dev, 0x061, "\xe0", 1);
+	ret = regmap_write(dev->regmap, 0x061, 0xe0);
 	if (ret)
 		goto err;
 
 	/* mode */
-	ret = rtl2832_sdr_wr_regs(dev, 0x019, "\x20", 1);
+	ret = regmap_write(dev->regmap, 0x019, 0x20);
 	if (ret)
 		goto err;
 
-	ret = rtl2832_sdr_wr_regs(dev, 0x017, "\x11\x10", 2);
+	ret = regmap_bulk_write(dev->regmap, 0x017, "\x11\x10", 2);
 	if (ret)
 		goto err;
 
 	/* FSM */
-	ret = rtl2832_sdr_wr_regs(dev, 0x192, "\x00\x0f\xff", 3);
+	ret = regmap_bulk_write(dev->regmap, 0x192, "\x00\x0f\xff", 3);
 	if (ret)
 		goto err;
 
-	ret = rtl2832_sdr_wr_regs(dev, 0x13e, "\x40\x00", 2);
+	ret = regmap_bulk_write(dev->regmap, 0x13e, "\x40\x00", 2);
 	if (ret)
 		goto err;
 
-	ret = rtl2832_sdr_wr_regs(dev, 0x115, "\x06\x3f\xce\xcc", 4);
+	ret = regmap_bulk_write(dev->regmap, 0x115, "\x06\x3f\xce\xcc", 4);
 	if (ret)
 		goto err;
 err:
@@ -1399,6 +1361,7 @@ static int rtl2832_sdr_probe(struct platform_device *pdev)
 	subdev = pdata->v4l2_subdev;
 	dev->v4l2_subdev = pdata->v4l2_subdev;
 	dev->pdev = pdev;
+	dev->regmap = pdata->regmap;
 	dev->udev = pdata->dvb_usb_device->udev;
 	dev->f_adc = bands_adc[0].rangelow;
 	dev->f_tuner = bands_fm[0].rangelow;
diff --git a/drivers/media/dvb-frontends/rtl2832_sdr.h b/drivers/media/dvb-frontends/rtl2832_sdr.h
index 342ea84860df..d8fc7e7212e3 100644
--- a/drivers/media/dvb-frontends/rtl2832_sdr.h
+++ b/drivers/media/dvb-frontends/rtl2832_sdr.h
@@ -56,10 +56,7 @@ struct rtl2832_sdr_platform_data {
 #define RTL2832_SDR_TUNER_R828D     0x2b
 	u8 tuner;
 
-	struct i2c_client *i2c_client;
-	int (*bulk_read)(struct i2c_client *, unsigned int, void *, size_t);
-	int (*bulk_write)(struct i2c_client *, unsigned int, const void *, size_t);
-	int (*update_bits)(struct i2c_client *, unsigned int, unsigned int, unsigned int);
+	struct regmap *regmap;
 	struct dvb_frontend *dvb_frontend;
 	struct v4l2_subdev *v4l2_subdev;
 	struct dvb_usb_device *dvb_usb_device;
diff --git a/drivers/media/dvb-frontends/si2168.c b/drivers/media/dvb-frontends/si2168.c
index 821a8f481507..108a069fa1ae 100644
--- a/drivers/media/dvb-frontends/si2168.c
+++ b/drivers/media/dvb-frontends/si2168.c
@@ -18,53 +18,23 @@
 
 static const struct dvb_frontend_ops si2168_ops;
 
-/* Own I2C adapter locking is needed because of I2C gate logic. */
-static int si2168_i2c_master_send_unlocked(const struct i2c_client *client,
-					   const char *buf, int count)
-{
-	int ret;
-	struct i2c_msg msg = {
-		.addr = client->addr,
-		.flags = 0,
-		.len = count,
-		.buf = (char *)buf,
-	};
-
-	ret = __i2c_transfer(client->adapter, &msg, 1);
-	return (ret == 1) ? count : ret;
-}
-
-static int si2168_i2c_master_recv_unlocked(const struct i2c_client *client,
-					   char *buf, int count)
-{
-	int ret;
-	struct i2c_msg msg = {
-		.addr = client->addr,
-		.flags = I2C_M_RD,
-		.len = count,
-		.buf = buf,
-	};
-
-	ret = __i2c_transfer(client->adapter, &msg, 1);
-	return (ret == 1) ? count : ret;
-}
-
 /* execute firmware command */
-static int si2168_cmd_execute_unlocked(struct i2c_client *client,
-				       struct si2168_cmd *cmd)
+static int si2168_cmd_execute(struct i2c_client *client, struct si2168_cmd *cmd)
 {
+	struct si2168_dev *dev = i2c_get_clientdata(client);
 	int ret;
 	unsigned long timeout;
 
+	mutex_lock(&dev->i2c_mutex);
+
 	if (cmd->wlen) {
 		/* write cmd and args for firmware */
-		ret = si2168_i2c_master_send_unlocked(client, cmd->args,
-						      cmd->wlen);
+		ret = i2c_master_send(client, cmd->args, cmd->wlen);
 		if (ret < 0) {
-			goto err;
+			goto err_mutex_unlock;
 		} else if (ret != cmd->wlen) {
 			ret = -EREMOTEIO;
-			goto err;
+			goto err_mutex_unlock;
 		}
 	}
 
@@ -73,13 +43,12 @@ static int si2168_cmd_execute_unlocked(struct i2c_client *client,
 		#define TIMEOUT 70
 		timeout = jiffies + msecs_to_jiffies(TIMEOUT);
 		while (!time_after(jiffies, timeout)) {
-			ret = si2168_i2c_master_recv_unlocked(client, cmd->args,
-							      cmd->rlen);
+			ret = i2c_master_recv(client, cmd->args, cmd->rlen);
 			if (ret < 0) {
-				goto err;
+				goto err_mutex_unlock;
 			} else if (ret != cmd->rlen) {
 				ret = -EREMOTEIO;
-				goto err;
+				goto err_mutex_unlock;
 			}
 
 			/* firmware ready? */
@@ -94,32 +63,23 @@ static int si2168_cmd_execute_unlocked(struct i2c_client *client,
 		/* error bit set? */
 		if ((cmd->args[0] >> 6) & 0x01) {
 			ret = -EREMOTEIO;
-			goto err;
+			goto err_mutex_unlock;
 		}
 
 		if (!((cmd->args[0] >> 7) & 0x01)) {
 			ret = -ETIMEDOUT;
-			goto err;
+			goto err_mutex_unlock;
 		}
 	}
 
+	mutex_unlock(&dev->i2c_mutex);
 	return 0;
-err:
+err_mutex_unlock:
+	mutex_unlock(&dev->i2c_mutex);
 	dev_dbg(&client->dev, "failed=%d\n", ret);
 	return ret;
 }
 
-static int si2168_cmd_execute(struct i2c_client *client, struct si2168_cmd *cmd)
-{
-	int ret;
-
-	i2c_lock_adapter(client->adapter);
-	ret = si2168_cmd_execute_unlocked(client, cmd);
-	i2c_unlock_adapter(client->adapter);
-
-	return ret;
-}
-
 static int si2168_read_status(struct dvb_frontend *fe, enum fe_status *status)
 {
 	struct i2c_client *client = fe->demodulator_priv;
@@ -610,14 +570,9 @@ static int si2168_get_tune_settings(struct dvb_frontend *fe,
 	return 0;
 }
 
-/*
- * I2C gate logic
- * We must use unlocked I2C I/O because I2C adapter lock is already taken
- * by the caller (usually tuner driver).
- */
-static int si2168_select(struct i2c_adapter *adap, void *mux_priv, u32 chan)
+static int si2168_select(struct i2c_mux_core *muxc, u32 chan)
 {
-	struct i2c_client *client = mux_priv;
+	struct i2c_client *client = i2c_mux_priv(muxc);
 	int ret;
 	struct si2168_cmd cmd;
 
@@ -625,7 +580,7 @@ static int si2168_select(struct i2c_adapter *adap, void *mux_priv, u32 chan)
 	memcpy(cmd.args, "\xc0\x0d\x01", 3);
 	cmd.wlen = 3;
 	cmd.rlen = 0;
-	ret = si2168_cmd_execute_unlocked(client, &cmd);
+	ret = si2168_cmd_execute(client, &cmd);
 	if (ret)
 		goto err;
 
@@ -635,9 +590,9 @@ err:
 	return ret;
 }
 
-static int si2168_deselect(struct i2c_adapter *adap, void *mux_priv, u32 chan)
+static int si2168_deselect(struct i2c_mux_core *muxc, u32 chan)
 {
-	struct i2c_client *client = mux_priv;
+	struct i2c_client *client = i2c_mux_priv(muxc);
 	int ret;
 	struct si2168_cmd cmd;
 
@@ -645,7 +600,7 @@ static int si2168_deselect(struct i2c_adapter *adap, void *mux_priv, u32 chan)
 	memcpy(cmd.args, "\xc0\x0d\x00", 3);
 	cmd.wlen = 3;
 	cmd.rlen = 0;
-	ret = si2168_cmd_execute_unlocked(client, &cmd);
+	ret = si2168_cmd_execute(client, &cmd);
 	if (ret)
 		goto err;
 
@@ -708,18 +663,25 @@ static int si2168_probe(struct i2c_client *client,
 		goto err;
 	}
 
+	mutex_init(&dev->i2c_mutex);
+
 	/* create mux i2c adapter for tuner */
-	dev->adapter = i2c_add_mux_adapter(client->adapter, &client->dev,
-			client, 0, 0, 0, si2168_select, si2168_deselect);
-	if (dev->adapter == NULL) {
-		ret = -ENODEV;
+	dev->muxc = i2c_mux_alloc(client->adapter, &client->dev,
+				  1, 0, I2C_MUX_LOCKED,
+				  si2168_select, si2168_deselect);
+	if (!dev->muxc) {
+		ret = -ENOMEM;
 		goto err_kfree;
 	}
+	dev->muxc->priv = client;
+	ret = i2c_mux_add_adapter(dev->muxc, 0, 0, 0);
+	if (ret)
+		goto err_kfree;
 
 	/* create dvb_frontend */
 	memcpy(&dev->fe.ops, &si2168_ops, sizeof(struct dvb_frontend_ops));
 	dev->fe.demodulator_priv = client;
-	*config->i2c_adapter = dev->adapter;
+	*config->i2c_adapter = dev->muxc->adapter[0];
 	*config->fe = &dev->fe;
 	dev->ts_mode = config->ts_mode;
 	dev->ts_clock_inv = config->ts_clock_inv;
@@ -743,7 +705,7 @@ static int si2168_remove(struct i2c_client *client)
 
 	dev_dbg(&client->dev, "\n");
 
-	i2c_del_mux_adapter(dev->adapter);
+	i2c_mux_del_adapters(dev->muxc);
 
 	dev->fe.ops.release = NULL;
 	dev->fe.demodulator_priv = NULL;
diff --git a/drivers/media/dvb-frontends/si2168_priv.h b/drivers/media/dvb-frontends/si2168_priv.h
index c07e6fe2cb10..8a1f36d2014d 100644
--- a/drivers/media/dvb-frontends/si2168_priv.h
+++ b/drivers/media/dvb-frontends/si2168_priv.h
@@ -29,7 +29,8 @@
 
 /* state struct */
 struct si2168_dev {
-	struct i2c_adapter *adapter;
+	struct mutex i2c_mutex;
+	struct i2c_mux_core *muxc;
 	struct dvb_frontend fe;
 	enum fe_delivery_system delivery_system;
 	enum fe_status fe_status;