Merge branch 'next-i2c' of git://git.fluff.org/bjdooks/linux

* 'next-i2c' of git://git.fluff.org/bjdooks/linux: (25 commits)
  i2c-pnx: Map I2C adapter number to platform ID number
  i2c-omap: OMAP3: PM: (re)init for every transfer to support off-mode
  i2c-designware: i2c_dw_handle_tx_abort: Use dev_dbg() for NOACK cases
  i2c-designware: Cosmetic cleanups
  i2c-designware: Tx abort cleanups
  i2c-designware: Skip RX_FULL and TX_EMPTY bits on tx abort errors
  i2c-designware: i2c_dw_xfer_msg: Fix error handling procedures
  i2c-designware: Disable TX_EMPTY when all i2c_msg msgs has been processed
  i2c-designware: Process all i2c_msg messages in the interrupt handler
  i2c-designware: i2c_dw_read: Remove redundant target address checker
  i2c-designware: i2c_dw_func: Set I2C_FUNC_SMBUS_foo bits
  i2c-designware: Initialize byte count variables just prior to being used
  i2c-designware: i2c_dw_xfer_msg: Introduce a local "buf" pointer
  i2c-designware: Divide i2c_dw_xfer_msg into two functions
  i2c-designware: Enable RX_FULL interrupt
  i2c-designware: Set Tx/Rx FIFO threshold levels
  i2c-designware: Process i2c_msg messages in the interrupt handler
  i2c-designware: i2c_dw_xfer_msg: Fix i2c_msg search bug
  i2c-designware: Improved _HCNT/_LCNT calculation
  i2c-designware: Remove an useless local variable "num"
  ...

drivers/i2c/busses/i2c-omap.c

@@ -178,6 +178,12 @@ struct omap_i2c_dev {
 	unsigned		b_hw:1;		/* bad h/w fixes */
 	unsigned		idle:1;
 	u16			iestate;	/* Saved interrupt register */
+	u16			pscstate;
+	u16			scllstate;
+	u16			sclhstate;
+	u16			bufstate;
+	u16			syscstate;
+	u16			westate;
 };
 
 static inline void omap_i2c_write_reg(struct omap_i2c_dev *i2c_dev,
@@ -230,8 +236,17 @@ static void omap_i2c_unidle(struct omap_i2c_dev *dev)
 
 	clk_enable(dev->iclk);
 	clk_enable(dev->fclk);
+	if (cpu_is_omap34xx()) {
+		omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, 0);
+		omap_i2c_write_reg(dev, OMAP_I2C_PSC_REG, dev->pscstate);
+		omap_i2c_write_reg(dev, OMAP_I2C_SCLL_REG, dev->scllstate);
+		omap_i2c_write_reg(dev, OMAP_I2C_SCLH_REG, dev->sclhstate);
+		omap_i2c_write_reg(dev, OMAP_I2C_BUF_REG, dev->bufstate);
+		omap_i2c_write_reg(dev, OMAP_I2C_SYSC_REG, dev->syscstate);
+		omap_i2c_write_reg(dev, OMAP_I2C_WE_REG, dev->westate);
+		omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, OMAP_I2C_CON_EN);
+	}
 	dev->idle = 0;
-	if (dev->iestate)
 	omap_i2c_write_reg(dev, OMAP_I2C_IE_REG, dev->iestate);
 }
 
@@ -258,7 +273,7 @@ static void omap_i2c_idle(struct omap_i2c_dev *dev)
 
 static int omap_i2c_init(struct omap_i2c_dev *dev)
 {
-	u16 psc = 0, scll = 0, sclh = 0;
+	u16 psc = 0, scll = 0, sclh = 0, buf = 0;
 	u16 fsscll = 0, fssclh = 0, hsscll = 0, hssclh = 0;
 	unsigned long fclk_rate = 12000000;
 	unsigned long timeout;
@@ -287,24 +302,22 @@ static int omap_i2c_init(struct omap_i2c_dev *dev)
 					   SYSC_AUTOIDLE_MASK);
 
 		} else if (dev->rev >= OMAP_I2C_REV_ON_3430) {
-			u32 v;
-
-			v = SYSC_AUTOIDLE_MASK;
-			v |= SYSC_ENAWAKEUP_MASK;
-			v |= (SYSC_IDLEMODE_SMART <<
+			dev->syscstate = SYSC_AUTOIDLE_MASK;
+			dev->syscstate |= SYSC_ENAWAKEUP_MASK;
+			dev->syscstate |= (SYSC_IDLEMODE_SMART <<
 			      __ffs(SYSC_SIDLEMODE_MASK));
-			v |= (SYSC_CLOCKACTIVITY_FCLK <<
+			dev->syscstate |= (SYSC_CLOCKACTIVITY_FCLK <<
 			      __ffs(SYSC_CLOCKACTIVITY_MASK));
 
-			omap_i2c_write_reg(dev, OMAP_I2C_SYSC_REG, v);
+			omap_i2c_write_reg(dev, OMAP_I2C_SYSC_REG,
+							dev->syscstate);
 			/*
 			 * Enabling all wakup sources to stop I2C freezing on
 			 * WFI instruction.
 			 * REVISIT: Some wkup sources might not be needed.
 			 */
-			omap_i2c_write_reg(dev, OMAP_I2C_WE_REG,
-							OMAP_I2C_WE_ALL);
-
+			dev->westate = OMAP_I2C_WE_ALL;
+			omap_i2c_write_reg(dev, OMAP_I2C_WE_REG, dev->westate);
 		}
 	}
 	omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, 0);
@@ -394,23 +407,28 @@ static int omap_i2c_init(struct omap_i2c_dev *dev)
 	omap_i2c_write_reg(dev, OMAP_I2C_SCLL_REG, scll);
 	omap_i2c_write_reg(dev, OMAP_I2C_SCLH_REG, sclh);
 
-	if (dev->fifo_size)
-		/* Note: setup required fifo size - 1 */
-		omap_i2c_write_reg(dev, OMAP_I2C_BUF_REG,
-					(dev->fifo_size - 1) << 8 | /* RTRSH */
-					OMAP_I2C_BUF_RXFIF_CLR |
-					(dev->fifo_size - 1) | /* XTRSH */
-					OMAP_I2C_BUF_TXFIF_CLR);
+	if (dev->fifo_size) {
+		/* Note: setup required fifo size - 1. RTRSH and XTRSH */
+		buf = (dev->fifo_size - 1) << 8 | OMAP_I2C_BUF_RXFIF_CLR |
+			(dev->fifo_size - 1) | OMAP_I2C_BUF_TXFIF_CLR;
+		omap_i2c_write_reg(dev, OMAP_I2C_BUF_REG, buf);
+	}
 
 	/* Take the I2C module out of reset: */
 	omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, OMAP_I2C_CON_EN);
 
 	/* Enable interrupts */
-	omap_i2c_write_reg(dev, OMAP_I2C_IE_REG,
-			(OMAP_I2C_IE_XRDY | OMAP_I2C_IE_RRDY |
+	dev->iestate = (OMAP_I2C_IE_XRDY | OMAP_I2C_IE_RRDY |
 			OMAP_I2C_IE_ARDY | OMAP_I2C_IE_NACK |
 			OMAP_I2C_IE_AL)  | ((dev->fifo_size) ?
-				(OMAP_I2C_IE_RDR | OMAP_I2C_IE_XDR) : 0));
+				(OMAP_I2C_IE_RDR | OMAP_I2C_IE_XDR) : 0);
+	omap_i2c_write_reg(dev, OMAP_I2C_IE_REG, dev->iestate);
+	if (cpu_is_omap34xx()) {
+		dev->pscstate = psc;
+		dev->scllstate = scll;
+		dev->sclhstate = sclh;
+		dev->bufstate = buf;
+	}
 	return 0;
 }
 

drivers/i2c/busses/i2c-pnx.c

@@ -638,7 +638,8 @@ static int __devinit i2c_pnx_probe(struct platform_device *pdev)
 
 	/* Register this adapter with the I2C subsystem */
 	i2c_pnx->adapter->dev.parent = &pdev->dev;
-	ret = i2c_add_adapter(i2c_pnx->adapter);
+	i2c_pnx->adapter->nr = pdev->id;
+	ret = i2c_add_numbered_adapter(i2c_pnx->adapter);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "I2C: Failed to add bus\n");
 		goto out_irq;