Hi Dmitry,

I love your patch! Yet something to improve:

[auto build test ERROR on regulator/for-next]
[cannot apply to v5.4-rc1 next-20191004]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Dmitry-Torokhov/regulator-switch-to-using-devm_-fwnode_gpiod_get_index/20191005-085020
base:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git for-next
config: sh-allmodconfig (attached as .config)
compiler: sh4-linux-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=sh 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All error/warnings (new ones prefixed by >>):

   drivers/regulator/da9211-regulator.c: In function 'da9211_parse_regulators_dt':
>> drivers/regulator/da9211-regulator.c:286:25: error: implicit declaration of function 'devm_fwnode_gpiod_get'; did you mean 'devm_gpiod_get'? [-Werror=implicit-function-declaration]
      pdata->gpiod_ren[n] = devm_fwnode_gpiod_get(dev,
                            ^~~~~~~~~~~~~~~~~~~~~
                            devm_gpiod_get
>> drivers/regulator/da9211-regulator.c:286:23: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
      pdata->gpiod_ren[n] = devm_fwnode_gpiod_get(dev,
                          ^
   cc1: some warnings being treated as errors

vim +286 drivers/regulator/da9211-regulator.c

   245	
   246	#ifdef CONFIG_OF
   247	static struct of_regulator_match da9211_matches[] = {
   248		[DA9211_ID_BUCKA] = { .name = "BUCKA" },
   249		[DA9211_ID_BUCKB] = { .name = "BUCKB" },
   250		};
   251	
   252	static struct da9211_pdata *da9211_parse_regulators_dt(
   253			struct device *dev)
   254	{
   255		struct da9211_pdata *pdata;
   256		struct device_node *node;
   257		int i, num, n;
   258	
   259		node = of_get_child_by_name(dev->of_node, "regulators");
   260		if (!node) {
   261			dev_err(dev, "regulators node not found\n");
   262			return ERR_PTR(-ENODEV);
   263		}
   264	
   265		num = of_regulator_match(dev, node, da9211_matches,
   266					 ARRAY_SIZE(da9211_matches));
   267		of_node_put(node);
   268		if (num < 0) {
   269			dev_err(dev, "Failed to match regulators\n");
   270			return ERR_PTR(-EINVAL);
   271		}
   272	
   273		pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
   274		if (!pdata)
   275			return ERR_PTR(-ENOMEM);
   276	
   277		pdata->num_buck = num;
   278	
   279		n = 0;
   280		for (i = 0; i < ARRAY_SIZE(da9211_matches); i++) {
   281			if (!da9211_matches[i].init_data)
   282				continue;
   283	
   284			pdata->init_data[n] = da9211_matches[i].init_data;
   285			pdata->reg_node[n] = da9211_matches[i].of_node;
 > 286			pdata->gpiod_ren[n] = devm_fwnode_gpiod_get(dev,
   287						of_fwnode_handle(pdata->reg_node[n]),
   288						"enable",
   289						GPIOD_OUT_HIGH |
   290							GPIOD_FLAGS_BIT_NONEXCLUSIVE,
   291						"da9211-enable");
   292			if (IS_ERR(pdata->gpiod_ren[n]))
   293				pdata->gpiod_ren[n] = NULL;
   294			n++;
   295		}
   296	
   297		return pdata;
   298	}
   299	#else
   300	static struct da9211_pdata *da9211_parse_regulators_dt(
   301			struct device *dev)
   302	{
   303		return ERR_PTR(-ENODEV);
   304	}
   305	#endif
   306	

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