drivers/pinctrl/intel/pinctrl-merrifield.c:518:10: error: implicit declaration of function 'readl'

[kbuild test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   29b4817d4018df78086157ea3a55c1d9424a7cfc
commit: 4e80c8f505741cbdef3e10862ea36057e8d85e7c pinctrl: intel: Add Intel 
Merrifield pin controller support
date:   6 weeks ago
config: x86_64-randconfig-x012-201632 (attached as .config)
compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        git checkout 4e80c8f505741cbdef3e10862ea36057e8d85e7c
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   drivers/pinctrl/intel/pinctrl-merrifield.c: In function 'mrfld_pin_dbg_show':
>> drivers/pinctrl/intel/pinctrl-merrifield.c:518:10: error: implicit 
>> declaration of function 'readl' [-Werror=implicit-function-declaration]
     value = readl(bufcfg);
             ^~~~~
   drivers/pinctrl/intel/pinctrl-merrifield.c: In function 
'mrfld_update_bufcfg':
>> drivers/pinctrl/intel/pinctrl-merrifield.c:575:2: error: implicit 
>> declaration of function 'writel' [-Werror=implicit-function-declaration]
     writel(value, bufcfg);
     ^~~~~~
   cc1: some warnings being treated as errors

vim +/readl +518 drivers/pinctrl/intel/pinctrl-merrifield.c

   512          if (!mrfld_buf_available(mp, pin)) {
   513                  seq_puts(s, "not available");
   514                  return;
   515          }
   516  
   517          bufcfg = mrfld_get_bufcfg(mp, pin);
 > 518          value = readl(bufcfg);
   519  
   520          mode = (value & BUFCFG_PINMODE_MASK) >> BUFCFG_PINMODE_SHIFT;
   521          if (!mode)
   522                  seq_puts(s, "GPIO ");
   523          else
   524                  seq_printf(s, "mode %d ", mode);
   525  
   526          seq_printf(s, "0x%08x", value);
   527  }
   528  
   529  static const struct pinctrl_ops mrfld_pinctrl_ops = {
   530          .get_groups_count = mrfld_get_groups_count,
   531          .get_group_name = mrfld_get_group_name,
   532          .get_group_pins = mrfld_get_group_pins,
   533          .pin_dbg_show = mrfld_pin_dbg_show,
   534  };
   535  
   536  static int mrfld_get_functions_count(struct pinctrl_dev *pctldev)
   537  {
   538          struct mrfld_pinctrl *mp = pinctrl_dev_get_drvdata(pctldev);
   539  
   540          return mp->nfunctions;
   541  }
   542  
   543  static const char *mrfld_get_function_name(struct pinctrl_dev *pctldev,
   544                                             unsigned int function)
   545  {
   546          struct mrfld_pinctrl *mp = pinctrl_dev_get_drvdata(pctldev);
   547  
   548          return mp->functions[function].name;
   549  }
   550  
   551  static int mrfld_get_function_groups(struct pinctrl_dev *pctldev,
   552                                       unsigned int function,
   553                                       const char * const **groups,
   554                                       unsigned int * const ngroups)
   555  {
   556          struct mrfld_pinctrl *mp = pinctrl_dev_get_drvdata(pctldev);
   557  
   558          *groups = mp->functions[function].groups;
   559          *ngroups = mp->functions[function].ngroups;
   560          return 0;
   561  }
   562  
   563  static void mrfld_update_bufcfg(struct mrfld_pinctrl *mp, unsigned int 
pin,
   564                                  u32 bits, u32 mask)
   565  {
   566          void __iomem *bufcfg;
   567          u32 value;
   568  
   569          bufcfg = mrfld_get_bufcfg(mp, pin);
   570          value = readl(bufcfg);
   571  
   572          value &= ~mask;
   573          value |= bits & mask;
   574  
 > 575          writel(value, bufcfg);
   576  }
   577  
   578  static int mrfld_pinmux_set_mux(struct pinctrl_dev *pctldev,

---
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.config.gz
Description: Binary data