Hi Maciej,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on regulator/for-next]
[also build test ERROR on next-20180604]
[cannot apply to v4.17]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Maciej-Purski/regulator-core-Add-debug-messages/20180605-052333
base:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git for-next
config: i386-randconfig-a1-06041847 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   drivers/regulator/core.c: In function 'regulator_set_voltage_unlocked':
>> drivers/regulator/core.c:3046:1: error: expected expression before '<<' token
    <<<<<<< HEAD
    ^
   drivers/regulator/core.c:3048:1: error: expected expression before '==' token
    =======
    ^

vim +3046 drivers/regulator/core.c

  3035	
  3036	static int regulator_set_voltage_unlocked(struct regulator *regulator,
  3037						  int min_uV, int max_uV,
  3038						  suspend_state_t state)
  3039	{
  3040		struct regulator_dev *rdev = regulator->rdev;
  3041		struct regulator_voltage *voltage = &regulator->voltage[state];
  3042		int ret = 0;
  3043		int old_min_uV, old_max_uV;
  3044		int current_uV;
  3045	
> 3046	<<<<<<< HEAD
  3047		pr_err("%s: %d\n", __func__, __LINE__);
  3048	=======
  3049		if (rdev->coupling_desc.n_resolved != rdev->coupling_desc.n_coupled) {
  3050			rdev_err(rdev, "not all coupled regulators registered\n");
  3051			ret = -EPERM;
  3052			goto out;
  3053		}
  3054	

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