Hi Matheus,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on pinctrl/devel]
[also build test ERROR on v4.17-rc3 next-20180501]
[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/Matheus-Castello/pinctrl-generic-improve-apply_setting-error-verbosity/20180501-160704
base:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git devel
config: x86_64-randconfig-x002-201817 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

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

   drivers/pinctrl/pinconf.c: In function 'pinconf_apply_setting':
>> drivers/pinctrl/pinconf.c:177:5: error: implicit declaration of function 'pinconf_generic_get_param_property_name'; did you mean 'pinconf_generic_dump_config'? [-Werror=implicit-function-declaration]
        pinconf_generic_get_param_property_name(
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        pinconf_generic_dump_config
>> drivers/pinctrl/pinconf.c:175:26: warning: format '%s' expects argument of type 'char *', but argument 5 has type 'int' [-Wformat=]
        "%s error %d seting %s for pin %d\n",
                            ~^
                            %d
   drivers/pinctrl/pinconf.c:177:5:
        pinconf_generic_get_param_property_name(
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         pctldev, setting->data.configs.num_configs,
         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         setting->data.configs.configs),
         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +177 drivers/pinctrl/pinconf.c

   150	
   151	int pinconf_apply_setting(const struct pinctrl_setting *setting)
   152	{
   153		struct pinctrl_dev *pctldev = setting->pctldev;
   154		const struct pinconf_ops *ops = pctldev->desc->confops;
   155		int ret;
   156	
   157		if (!ops) {
   158			dev_err(pctldev->dev, "missing confops\n");
   159			return -EINVAL;
   160		}
   161	
   162		switch (setting->type) {
   163		case PIN_MAP_TYPE_CONFIGS_PIN:
   164			if (!ops->pin_config_set) {
   165				dev_err(pctldev->dev, "missing pin_config_set op\n");
   166				return -EINVAL;
   167			}
   168			ret = ops->pin_config_set(pctldev,
   169					setting->data.configs.group_or_pin,
   170					setting->data.configs.configs,
   171					setting->data.configs.num_configs);
   172			if (ret < 0) {
   173	#ifdef CONFIG_GENERIC_PINCONF
   174				dev_err(pctldev->dev,
 > 175					"%s error %d seting %s for pin %d\n",
   176					pctldev->desc->name, ret,
 > 177					pinconf_generic_get_param_property_name(
   178						pctldev, setting->data.configs.num_configs,
   179						setting->data.configs.configs),
   180					setting->data.configs.group_or_pin);
   181	#endif
   182	
   183				dev_err(pctldev->dev,
   184					"pin_config_set op failed for %s pin %d\n",
   185					pctldev->desc->name,
   186					setting->data.configs.group_or_pin);
   187	
   188				return ret;
   189			}
   190			break;
   191		case PIN_MAP_TYPE_CONFIGS_GROUP:
   192			if (!ops->pin_config_group_set) {
   193				dev_err(pctldev->dev,
   194					"missing pin_config_group_set op\n");
   195				return -EINVAL;
   196			}
   197			ret = ops->pin_config_group_set(pctldev,
   198					setting->data.configs.group_or_pin,
   199					setting->data.configs.configs,
   200					setting->data.configs.num_configs);
   201			if (ret < 0) {
   202				dev_err(pctldev->dev,
   203					"pin_config_group_set op failed for group %d\n",
   204					setting->data.configs.group_or_pin);
   205				return ret;
   206			}
   207			break;
   208		default:
   209			return -EINVAL;
   210		}
   211	
   212		return 0;
   213	}
   214	

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