From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sat, 28 Jul 2012 20:43:12 +0000 (-0700)
Subject: Merge branch 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux
X-Git-Tag: accepted/tizen/common/20141203.182822~4086
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a410963ba4c0c768302f0298e258b1ee940e8316;p=platform%2Fkernel%2Flinux-arm64.git

Merge branch 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux

Pull embedded i2c changes from Wolfram Sang:
 "Changes for the "embedded" part of the I2C subsystem:

   - lots of devicetree conversions of drivers (and preparations for
     that)
   - big cleanups for drivers for OMAP, Tegra, Nomadik, Blackfin
   - Rafael's struct dev_pm_ops conversion patches for I2C
   - usual driver cleanups and fixes

  All patches have been in linux-next for an apropriate time and all
  patches touching files outside of i2c-folders should have proper acks
  from the maintainers."

* 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux: (60 commits)
  Revert "i2c: tegra: convert normal suspend/resume to *_noirq"
  I2C: MV64XYZ: Add Device Tree support
  i2c: stu300: use devm managed resources
  i2c: i2c-ocores: support for 16bit and 32bit IO
  V4L/DVB: mfd: use reg_shift instead of regstep
  i2c: i2c-ocores: Use reg-shift property
  i2c: i2c-ocores: DT bindings and minor fixes.
  i2c: mv64xxxx: remove EXPERIMENTAL tag
  i2c-s3c2410: Use plain pm_runtime_put()
  i2c: s3c2410: Fix pointer type passed to of_match_node()
  i2c: mxs: Set I2C timing registers for mxs-i2c
  i2c: i2c-bfin-twi: Move blackfin TWI register access Macro to head file.
  i2c: i2c-bfin-twi: Move TWI peripheral pin request array to platform data.
  i2c:i2c-bfin-twi: include twi head file
  i2c:i2c-bfin-twi: TWI fails to restart next transfer in high system load.
  i2c: i2c-bfin-twi: Tighten condition when failing I2C transfer if MEN bit is reset unexpectedly.
  i2c: i2c-bfin-twi: Break dead waiting loop if i2c device misbehaves.
  i2c: i2c-bfin-twi: Improve the patch for bug "Illegal i2c bus lock upon certain transfer scenarios".
  i2c: i2c-bfin-twi: Illegal i2c bus lock upon certain transfer scenarios.
  i2c-mv64xxxx: allow more than one driver instance
  ...

Conflicts:
	drivers/i2c/busses/i2c-nomadik.c
---

a410963ba4c0c768302f0298e258b1ee940e8316
diff --cc drivers/i2c/busses/i2c-nomadik.c
index a92440d,e6b93f3..5e6f1ee
--- a/drivers/i2c/busses/i2c-nomadik.c
+++ b/drivers/i2c/busses/i2c-nomadik.c
@@@ -965,12 -969,12 +969,11 @@@ static int nmk_i2c_probe(struct amba_de
  	adap->owner	= THIS_MODULE;
  	adap->class	= I2C_CLASS_HWMON | I2C_CLASS_SPD;
  	adap->algo	= &nmk_i2c_algo;
 -	adap->timeout	= pdata->timeout ? msecs_to_jiffies(pdata->timeout) :
 -		msecs_to_jiffies(20000);
 +	adap->timeout	= msecs_to_jiffies(pdata->timeout);
+ 	adap->nr = atomic_read(&adapter_id);
  	snprintf(adap->name, sizeof(adap->name),
- 		 "Nomadik I2C%d at %lx", pdev->id, (unsigned long)res->start);
- 
- 	/* fetch the controller id */
- 	adap->nr	= pdev->id;
+ 		 "Nomadik I2C%d at %pR", adap->nr, &adev->res);
+ 	atomic_inc(&adapter_id);
  
  	/* fetch the controller configuration from machine */
  	dev->cfg.clk_freq = pdata->clk_freq;
diff --cc drivers/i2c/busses/i2c-tegra.c
index 3da7ee3,f85dee5..66eb53f
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@@ -546,10 -563,16 +563,16 @@@ static int tegra_i2c_xfer(struct i2c_ad
  	if (i2c_dev->is_suspended)
  		return -EBUSY;
  
 -	clk_enable(i2c_dev->clk);
 +	clk_prepare_enable(i2c_dev->clk);
  	for (i = 0; i < num; i++) {
- 		int stop = (i == (num - 1)) ? 1  : 0;
- 		ret = tegra_i2c_xfer_msg(i2c_dev, &msgs[i], stop);
+ 		enum msg_end_type end_type = MSG_END_STOP;
+ 		if (i < (num - 1)) {
+ 			if (msgs[i + 1].flags & I2C_M_NOSTART)
+ 				end_type = MSG_END_CONTINUE;
+ 			else
+ 				end_type = MSG_END_REPEAT_START;
+ 		}
+ 		ret = tegra_i2c_xfer_msg(i2c_dev, &msgs[i], end_type);
  		if (ret)
  			break;
  	}
@@@ -657,16 -671,17 +671,17 @@@ static int __devinit tegra_i2c_probe(st
  	ret = tegra_i2c_init(i2c_dev);
  	if (ret) {
  		dev_err(&pdev->dev, "Failed to initialize i2c controller");
- 		goto err_free;
+ 		return ret;
  	}
  
- 	ret = request_irq(i2c_dev->irq, tegra_i2c_isr, 0, pdev->name, i2c_dev);
+ 	ret = devm_request_irq(&pdev->dev, i2c_dev->irq,
+ 			tegra_i2c_isr, 0, pdev->name, i2c_dev);
  	if (ret) {
  		dev_err(&pdev->dev, "Failed to request irq %i\n", i2c_dev->irq);
- 		goto err_free;
+ 		return ret;
  	}
  
 -	clk_enable(i2c_dev->i2c_clk);
 +	clk_prepare_enable(i2c_dev->i2c_clk);
  
  	i2c_set_adapdata(&i2c_dev->adapter, i2c_dev);
  	i2c_dev->adapter.owner = THIS_MODULE;