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
  ...

60 files changed, 2172 insertions, 1423 deletions

diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c
index 9d233bbde5e1..a8e89df665b9 100644
--- a/drivers/i2c/algos/i2c-algo-bit.c
+++ b/drivers/i2c/algos/i2c-algo-bit.c
@@ -617,7 +617,7 @@ const struct i2c_algorithm i2c_bit_algo = {
 };
 EXPORT_SYMBOL(i2c_bit_algo);
 
-const struct i2c_adapter_quirks i2c_bit_quirk_no_clk_stretch = {
+static const struct i2c_adapter_quirks i2c_bit_quirk_no_clk_stretch = {
 	.flags = I2C_AQ_NO_CLK_STRETCH,
 };
 
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 0967e1a5b3a2..2dd40ddf04de 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -663,7 +663,7 @@ config I2C_MT65XX
 
 config I2C_MV64XXX
 	tristate "Marvell mv64xxx I2C Controller"
-	depends on MV64X60 || PLAT_ORION || ARCH_SUNXI
+	depends on MV64X60 || PLAT_ORION || ARCH_SUNXI || ARCH_MVEBU
 	help
 	  If you say yes to this option, support will be included for the
 	  built-in I2C interface on the Marvell 64xxx line of host bridges.
diff --git a/drivers/i2c/busses/i2c-bcm-iproc.c b/drivers/i2c/busses/i2c-bcm-iproc.c
index b9f0fff4e723..19c843828fe2 100644
--- a/drivers/i2c/busses/i2c-bcm-iproc.c
+++ b/drivers/i2c/busses/i2c-bcm-iproc.c
@@ -267,7 +267,7 @@ static int bcm_iproc_i2c_xfer_single_msg(struct bcm_iproc_i2c_dev *iproc_i2c,
 	iproc_i2c->msg = msg;
 
 	/* format and load slave address into the TX FIFO */
-	addr = msg->addr << 1 | (msg->flags & I2C_M_RD ? 1 : 0);
+	addr = i2c_8bit_addr_from_msg(msg);
 	writel(addr, iproc_i2c->base + M_TX_OFFSET);
 
 	/*
diff --git a/drivers/i2c/busses/i2c-bcm-kona.c b/drivers/i2c/busses/i2c-bcm-kona.c
index 2c9d9b1c8e64..ac9f47679c3a 100644
--- a/drivers/i2c/busses/i2c-bcm-kona.c
+++ b/drivers/i2c/busses/i2c-bcm-kona.c
@@ -501,10 +501,7 @@ static int bcm_kona_i2c_do_addr(struct bcm_kona_i2c_dev *dev,
 				return -EREMOTEIO;
 		}
 	} else {
-		addr = msg->addr << 1;
-
-		if (msg->flags & I2C_M_RD)
-			addr |= 1;
+		addr = i2c_8bit_addr_from_msg(msg);
 
 		if (bcm_kona_i2c_write_byte(dev, addr, 0) < 0)
 			return -EREMOTEIO;
diff --git a/drivers/i2c/busses/i2c-brcmstb.c b/drivers/i2c/busses/i2c-brcmstb.c
index 4a45408dd820..6a8cfc1344b2 100644
--- a/drivers/i2c/busses/i2c-brcmstb.c
+++ b/drivers/i2c/busses/i2c-brcmstb.c
@@ -446,9 +446,7 @@ static int brcmstb_i2c_do_addr(struct brcmstb_i2c_dev *dev,
 
 		}
 	} else {
-		addr = msg->addr << 1;
-		if (msg->flags & I2C_M_RD)
-			addr |= 1;
+		addr = i2c_8bit_addr_from_msg(msg);
 
 		bsc_writel(dev, addr, chip_address);
 	}
diff --git a/drivers/i2c/busses/i2c-cpm.c b/drivers/i2c/busses/i2c-cpm.c
index b167ab25310a..ee57c1e865e2 100644
--- a/drivers/i2c/busses/i2c-cpm.c
+++ b/drivers/i2c/busses/i2c-cpm.c
@@ -197,9 +197,7 @@ static void cpm_i2c_parse_message(struct i2c_adapter *adap,
 	tbdf = cpm->tbase + tx;
 	rbdf = cpm->rbase + rx;
 
-	addr = pmsg->addr << 1;
-	if (pmsg->flags & I2C_M_RD)
-		addr |= 1;
+	addr = i2c_8bit_addr_from_msg(pmsg);
 
 	tb = cpm->txbuf[tx];
 	rb = cpm->rxbuf[rx];
diff --git a/drivers/i2c/busses/i2c-dln2.c b/drivers/i2c/busses/i2c-dln2.c
index 1600edd57ce9..f2eb4f76591f 100644
--- a/drivers/i2c/busses/i2c-dln2.c
+++ b/drivers/i2c/busses/i2c-dln2.c
@@ -19,6 +19,7 @@
 #include <linux/i2c.h>
 #include <linux/platform_device.h>
 #include <linux/mfd/dln2.h>
+#include <linux/acpi.h>
 
 #define DLN2_I2C_MODULE_ID		0x03
 #define DLN2_I2C_CMD(cmd)		DLN2_CMD(cmd, DLN2_I2C_MODULE_ID)
@@ -210,6 +211,7 @@ static int dln2_i2c_probe(struct platform_device *pdev)
 	dln2->adapter.algo = &dln2_i2c_usb_algorithm;
 	dln2->adapter.quirks = &dln2_i2c_quirks;
 	dln2->adapter.dev.parent = dev;
+	ACPI_COMPANION_SET(&dln2->adapter.dev, ACPI_COMPANION(&pdev->dev));
 	dln2->adapter.dev.of_node = dev->of_node;
 	i2c_set_adapdata(&dln2->adapter, dln2);
 	snprintf(dln2->adapter.name, sizeof(dln2->adapter.name), "%s-%s-%d",
diff --git a/drivers/i2c/busses/i2c-exynos5.c b/drivers/i2c/busses/i2c-exynos5.c
index f54ece8fce78..c0e3ada02876 100644
--- a/drivers/i2c/busses/i2c-exynos5.c
+++ b/drivers/i2c/busses/i2c-exynos5.c
@@ -861,14 +861,8 @@ static int exynos5_i2c_resume_noirq(struct device *dev)
 #endif
 
 static const struct dev_pm_ops exynos5_i2c_dev_pm_ops = {
-#ifdef CONFIG_PM_SLEEP
-	.suspend_noirq = exynos5_i2c_suspend_noirq,
-	.resume_noirq = exynos5_i2c_resume_noirq,
-	.freeze_noirq = exynos5_i2c_suspend_noirq,
-	.thaw_noirq = exynos5_i2c_resume_noirq,
-	.poweroff_noirq = exynos5_i2c_suspend_noirq,
-	.restore_noirq = exynos5_i2c_resume_noirq,
-#endif
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(exynos5_i2c_suspend_noirq,
+				      exynos5_i2c_resume_noirq)
 };
 
 static struct platform_driver exynos5_i2c_driver = {
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 585a3b7915bd..64b1208bca5e 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -94,6 +94,7 @@
 #include <linux/err.h>
 #include <linux/platform_device.h>
 #include <linux/platform_data/itco_wdt.h>
+#include <linux/pm_runtime.h>
 
 #if (defined CONFIG_I2C_MUX_GPIO || defined CONFIG_I2C_MUX_GPIO_MODULE) && \
 		defined CONFIG_DMI
@@ -714,9 +715,11 @@ static s32 i801_access(struct i2c_adapter *adap, u16 addr,
 {
 	int hwpec;
 	int block = 0;
-	int ret, xact = 0;
+	int ret = 0, xact = 0;
 	struct i801_priv *priv = i2c_get_adapdata(adap);
 
+	pm_runtime_get_sync(&priv->pci_dev->dev);
+
 	hwpec = (priv->features & FEATURE_SMBUS_PEC) && (flags & I2C_CLIENT_PEC)
 		&& size != I2C_SMBUS_QUICK
 		&& size != I2C_SMBUS_I2C_BLOCK_DATA;
@@ -773,7 +776,8 @@ static s32 i801_access(struct i2c_adapter *adap, u16 addr,
 	default:
 		dev_err(&priv->pci_dev->dev, "Unsupported transaction %d\n",
 			size);
-		return -EOPNOTSUPP;
+		ret = -EOPNOTSUPP;
+		goto out;
 	}
 
 	if (hwpec)	/* enable/disable hardware PEC */
@@ -796,11 +800,11 @@ static s32 i801_access(struct i2c_adapter *adap, u16 addr,
 		       ~(SMBAUXCTL_CRC | SMBAUXCTL_E32B), SMBAUXCTL(priv));
 
 	if (block)
-		return ret;
+		goto out;
 	if (ret)
-		return ret;
+		goto out;
 	if ((read_write == I2C_SMBUS_WRITE) || (xact == I801_QUICK))
-		return 0;
+		goto out;
 
 	switch (xact & 0x7f) {
 	case I801_BYTE:	/* Result put in SMBHSTDAT0 */
@@ -812,7 +816,11 @@ static s32 i801_access(struct i2c_adapter *adap, u16 addr,
 			     (inb_p(SMBHSTDAT1(priv)) << 8);
 		break;
 	}
-	return 0;
+
+out:
+	pm_runtime_mark_last_busy(&priv->pci_dev->dev);
+	pm_runtime_put_autosuspend(&priv->pci_dev->dev);
+	return ret;
 }
 
 
@@ -1413,6 +1421,11 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
 
 	pci_set_drvdata(dev, priv);
 
+	pm_runtime_set_autosuspend_delay(&dev->dev, 1000);
+	pm_runtime_use_autosuspend(&dev->dev);
+	pm_runtime_put_autosuspend(&dev->dev);
+	pm_runtime_allow(&dev->dev);
+
 	return 0;
 }
 
@@ -1420,6 +1433,9 @@ static void i801_remove(struct pci_dev *dev)
 {
 	struct i801_priv *priv = pci_get_drvdata(dev);
 
+	pm_runtime_forbid(&dev->dev);
+	pm_runtime_get_noresume(&dev->dev);
+
 	i801_del_mux(priv);
 	i2c_del_adapter(&priv->adapter);
 	pci_write_config_byte(dev, SMBHSTCFG, priv->original_hstcfg);
@@ -1433,34 +1449,32 @@ static void i801_remove(struct pci_dev *dev)
 }
 
 #ifdef CONFIG_PM
-static int i801_suspend(struct pci_dev *dev, pm_message_t mesg)
+static int i801_suspend(struct device *dev)
 {
-	struct i801_priv *priv = pci_get_drvdata(dev);
+	struct pci_dev *pci_dev = to_pci_dev(dev);
+	struct i801_priv *priv = pci_get_drvdata(pci_dev);
 
-	pci_save_state(dev);
-	pci_write_config_byte(dev, SMBHSTCFG, priv->original_hstcfg);
-	pci_set_power_state(dev, pci_choose_state(dev, mesg));
+	pci_write_config_byte(pci_dev, SMBHSTCFG, priv->original_hstcfg);
 	return 0;
 }
 
-static int i801_resume(struct pci_dev *dev)
+static int i801_resume(struct device *dev)
 {
-	pci_set_power_state(dev, PCI_D0);
-	pci_restore_state(dev);
 	return 0;
 }
-#else
-#define i801_suspend NULL
-#define i801_resume NULL
 #endif
 
+static UNIVERSAL_DEV_PM_OPS(i801_pm_ops, i801_suspend,
+			    i801_resume, NULL);
+
 static struct pci_driver i801_driver = {
 	.name		= "i801_smbus",
 	.id_table	= i801_ids,
 	.probe		= i801_probe,
 	.remove		= i801_remove,
-	.suspend	= i801_suspend,
-	.resume		= i801_resume,
+	.driver		= {
+		.pm	= &i801_pm_ops,
+	},
 };
 
 static int __init i2c_i801_init(void)
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index b6c080334297..cdaa7be2cd1b 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -269,7 +269,7 @@ static int iic_smbus_quick(struct ibm_iic_private* dev, const struct i2c_msg* p)
 	ndelay(t->hd_sta);
 
 	/* Send address */
-	v = (u8)((p->addr << 1) | ((p->flags & I2C_M_RD) ? 1 : 0));
+	v = i2c_8bit_addr_from_msg(p);
 	for (i = 0, mask = 0x80; i < 8; ++i, mask >>= 1){
 		out_8(&iic->directcntl, sda);
 		ndelay(t->low / 2);
diff --git a/drivers/i2c/busses/i2c-img-scb.c b/drivers/i2c/busses/i2c-img-scb.c
index 379ef9c31664..ea20425b6972 100644
--- a/drivers/i2c/busses/i2c-img-scb.c
+++ b/drivers/i2c/busses/i2c-img-scb.c
@@ -751,9 +751,7 @@ static unsigned int img_i2c_atomic(struct img_i2c *i2c,
 	switch (i2c->at_cur_cmd) {
 	case CMD_GEN_START:
 		next_cmd = CMD_GEN_DATA;
-		next_data = (i2c->msg.addr << 1);
-		if (i2c->msg.flags & I2C_M_RD)
-			next_data |= 0x1;
+		next_data = i2c_8bit_addr_from_msg(&i2c->msg);
 		break;
 	case CMD_GEN_DATA:
 		if (i2c->line_status & LINESTAT_INPUT_HELD_V)
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index 1ca7ef2314f7..1844bc9f7cd5 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -525,7 +525,7 @@ static int i2c_imx_start(struct imx_i2c_struct *i2c_imx)
 	imx_i2c_write_reg(i2c_imx->hwdata->i2cr_ien_opcode, i2c_imx, IMX_I2C_I2CR);
 
 	/* Wait controller to be stable */
-	udelay(50);
+	usleep_range(50, 150);
 
 	/* Start I2C transaction */
 	temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2CR);
diff --git a/drivers/i2c/busses/i2c-iop3xx.c b/drivers/i2c/busses/i2c-iop3xx.c
index 72d6161cf77c..85cbe4b55578 100644
--- a/drivers/i2c/busses/i2c-iop3xx.c
+++ b/drivers/i2c/busses/i2c-iop3xx.c
@@ -50,10 +50,7 @@ iic_cook_addr(struct i2c_msg *msg)
 {
 	unsigned char addr;
 
-	addr = (msg->addr << 1);
-
-	if (msg->flags & I2C_M_RD)
-		addr |= 1;
+	addr = i2c_8bit_addr_from_msg(msg);
 
 	return addr;
 }
diff --git a/drivers/i2c/busses/i2c-lpc2k.c b/drivers/i2c/busses/i2c-lpc2k.c
index 8560a13bf1b3..586a15205e61 100644
--- a/drivers/i2c/busses/i2c-lpc2k.c
+++ b/drivers/i2c/busses/i2c-lpc2k.c
@@ -133,9 +133,7 @@ static void i2c_lpc2k_pump_msg(struct lpc2k_i2c *i2c)
 	case M_START:
 	case M_REPSTART:
 		/* Start bit was just sent out, send out addr and dir */
-		data = i2c->msg->addr << 1;
-		if (i2c->msg->flags & I2C_M_RD)
-			data |= 1;
+		data = i2c_8bit_addr_from_msg(i2c->msg);
 
 		writel(data, i2c->base + LPC24XX_I2DAT);
 		writel(LPC24XX_STA, i2c->base + LPC24XX_I2CONCLR);
diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
index 453358b4d9ca..d9373e60be8a 100644
--- a/drivers/i2c/busses/i2c-mt65xx.c
+++ b/drivers/i2c/busses/i2c-mt65xx.c
@@ -413,10 +413,7 @@ static int mtk_i2c_do_transfer(struct mtk_i2c *i2c, struct i2c_msg *msgs,
 	else
 		writew(I2C_FS_START_CON, i2c->base + OFFSET_EXT_CONF);
 
-	addr_reg = msgs->addr << 1;
-	if (i2c->op == I2C_MASTER_RD)
-		addr_reg |= 0x1;
-
+	addr_reg = i2c_8bit_addr_from_msg(msgs);
 	writew(addr_reg, i2c->base + OFFSET_SLAVE_ADDR);
 
 	/* Clear interrupt status */
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index 43207f52e5a3..b4dec0841bc2 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -134,9 +134,7 @@ struct mv64xxx_i2c_data {
 	int			rc;
 	u32			freq_m;
 	u32			freq_n;
-#if defined(CONFIG_HAVE_CLK)
 	struct clk              *clk;
-#endif
 	wait_queue_head_t	waitq;
 	spinlock_t		lock;
 	struct i2c_msg		*msg;
@@ -757,7 +755,6 @@ static const struct of_device_id mv64xxx_i2c_of_match_table[] = {
 MODULE_DEVICE_TABLE(of, mv64xxx_i2c_of_match_table);
 
 #ifdef CONFIG_OF
-#ifdef CONFIG_HAVE_CLK
 static int
 mv64xxx_calc_freq(struct mv64xxx_i2c_data *drv_data,
 		  const int tclk, const int n, const int m)
@@ -791,25 +788,20 @@ mv64xxx_find_baud_factors(struct mv64xxx_i2c_data *drv_data,
 		return false;
 	return true;
 }
-#endif /* CONFIG_HAVE_CLK */
 
 static int
 mv64xxx_of_config(struct mv64xxx_i2c_data *drv_data,
 		  struct device *dev)
 {
-	/* CLK is mandatory when using DT to describe the i2c bus. We
-	 * need to know tclk in order to calculate bus clock
-	 * factors.
-	 */
-#if !defined(CONFIG_HAVE_CLK)
-	/* Have OF but no CLK */
-	return -ENODEV;
-#else
 	const struct of_device_id *device;
 	struct device_node *np = dev->of_node;
 	u32 bus_freq, tclk;
 	int rc = 0;
 
+	/* CLK is mandatory when using DT to describe the i2c bus. We
+	 * need to know tclk in order to calculate bus clock
+	 * factors.
+	 */
 	if (IS_ERR(drv_data->clk)) {
 		rc = -ENODEV;
 		goto out;
@@ -869,7 +861,6 @@ mv64xxx_of_config(struct mv64xxx_i2c_data *drv_data,
 
 out:
 	return rc;
-#endif
 }
 #else /* CONFIG_OF */
 static int
@@ -907,14 +898,13 @@ mv64xxx_i2c_probe(struct platform_device *pd)
 	init_waitqueue_head(&drv_data->waitq);
 	spin_lock_init(&drv_data->lock);
 
-#if defined(CONFIG_HAVE_CLK)
 	/* Not all platforms have a clk */
 	drv_data->clk = devm_clk_get(&pd->dev, NULL);
-	if (!IS_ERR(drv_data->clk)) {
-		clk_prepare(drv_data->clk);
-		clk_enable(drv_data->clk);
-	}
-#endif
+	if (IS_ERR(drv_data->clk) && PTR_ERR(drv_data->clk) == -EPROBE_DEFER)
+		return -EPROBE_DEFER;
+	if (!IS_ERR(drv_data->clk))
+		clk_prepare_enable(drv_data->clk);
+
 	if (pdata) {
 		drv_data->freq_m = pdata->freq_m;
 		drv_data->freq_n = pdata->freq_n;
@@ -964,13 +954,10 @@ exit_reset:
 	if (!IS_ERR_OR_NULL(drv_data->rstc))
 		reset_control_assert(drv_data->rstc);
 exit_clk:
-#if defined(CONFIG_HAVE_CLK)
 	/* Not all platforms have a clk */
-	if (!IS_ERR(drv_data->clk)) {
-		clk_disable(drv_data->clk);
-		clk_unprepare(drv_data->clk);
-	}
-#endif
+	if (!IS_ERR(drv_data->clk))
+		clk_disable_unprepare(drv_data->clk);
+
 	return rc;
 }
 
@@ -983,13 +970,9 @@ mv64xxx_i2c_remove(struct platform_device *dev)
 	free_irq(drv_data->irq, drv_data);
 	if (!IS_ERR_OR_NULL(drv_data->rstc))
 		reset_control_assert(drv_data->rstc);
-#if defined(CONFIG_HAVE_CLK)
 	/* Not all platforms have a clk */
-	if (!IS_ERR(drv_data->clk)) {
-		clk_disable(drv_data->clk);
-		clk_unprepare(drv_data->clk);
-	}
-#endif
+	if (!IS_ERR(drv_data->clk))
+		clk_disable_unprepare(drv_data->clk);
 
 	return 0;
 }
diff --git a/drivers/i2c/busses/i2c-nforce2.c b/drivers/i2c/busses/i2c-nforce2.c
index 70b3c9158509..42fcc9458432 100644
--- a/drivers/i2c/busses/i2c-nforce2.c
+++ b/drivers/i2c/busses/i2c-nforce2.c
@@ -127,7 +127,7 @@ static struct pci_driver nforce2_driver;
 
 /* For multiplexing support, we need a global reference to the 1st
    SMBus channel */
-#if defined CONFIG_I2C_NFORCE2_S4985 || defined CONFIG_I2C_NFORCE2_S4985_MODULE
+#if IS_ENABLED(CONFIG_I2C_NFORCE2_S4985)
 struct i2c_adapter *nforce2_smbus;
 EXPORT_SYMBOL_GPL(nforce2_smbus);
 
diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c
index 11b7b87311ed..dfa7a4b4a91d 100644
--- a/drivers/i2c/busses/i2c-ocores.c
+++ b/drivers/i2c/busses/i2c-ocores.c
@@ -178,10 +178,7 @@ static void ocores_process(struct ocores_i2c *i2c)
 		if (i2c->nmsgs) {	/* end? */
 			/* send start? */
 			if (!(msg->flags & I2C_M_NOSTART)) {
-				u8 addr = (msg->addr << 1);
-
-				if (msg->flags & I2C_M_RD)
-					addr |= 1;
+				u8 addr = i2c_8bit_addr_from_msg(msg);
 
 				i2c->state = STATE_START;
 
diff --git a/drivers/i2c/busses/i2c-octeon.c b/drivers/i2c/busses/i2c-octeon.c
index 46fb6c42934f..aa5f01efd826 100644
--- a/drivers/i2c/busses/i2c-octeon.c
+++ b/drivers/i2c/busses/i2c-octeon.c
@@ -11,6 +11,7 @@
  * warranty of any kind, whether express or implied.
  */
 
+#include <linux/atomic.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
@@ -29,13 +30,23 @@
 /* Register offsets */
 #define SW_TWSI			0x00
 #define TWSI_INT		0x10
+#define SW_TWSI_EXT		0x18
 
 /* Controller command patterns */
 #define SW_TWSI_V		BIT_ULL(63)	/* Valid bit */
+#define SW_TWSI_EIA		BIT_ULL(61)	/* Extended internal address */
 #define SW_TWSI_R		BIT_ULL(56)	/* Result or read bit */
+#define SW_TWSI_SOVR		BIT_ULL(55)	/* Size override */
+#define SW_TWSI_SIZE_SHIFT	52
+#define SW_TWSI_ADDR_SHIFT	40
+#define SW_TWSI_IA_SHIFT	32		/* Internal address */
 
 /* Controller opcode word (bits 60:57) */
 #define SW_TWSI_OP_SHIFT	57
+#define SW_TWSI_OP_7		(0ULL << SW_TWSI_OP_SHIFT)
+#define SW_TWSI_OP_7_IA		(1ULL << SW_TWSI_OP_SHIFT)
+#define SW_TWSI_OP_10		(2ULL << SW_TWSI_OP_SHIFT)
+#define SW_TWSI_OP_10_IA	(3ULL << SW_TWSI_OP_SHIFT)
 #define SW_TWSI_OP_TWSI_CLK	(4ULL << SW_TWSI_OP_SHIFT)
 #define SW_TWSI_OP_EOP		(6ULL << SW_TWSI_OP_SHIFT) /* Extended opcode */
 
@@ -48,46 +59,93 @@
 #define SW_TWSI_EOP_TWSI_RST	(SW_TWSI_OP