Hi Vitaly,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on sound/for-next]
[also build test WARNING on v5.12-rc1 next-20210304]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    
https://github.com/0day-ci/linux/commits/Vitaly-Rodionov/ALSA-hda-cirrus-Add-support-for-CS8409-HDA-bridge-and-CS42L42-companion-codec/20210305-030714
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git for-next
config: alpha-randconfig-r035-20210305 (attached as .config)
compiler: alpha-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        # 
https://github.com/0day-ci/linux/commit/9d4c2aa0fd6872aa8b866929c1537ce2905a6dba
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review 
Vitaly-Rodionov/ALSA-hda-cirrus-Add-support-for-CS8409-HDA-bridge-and-CS42L42-companion-codec/20210305-030714
        git checkout 9d4c2aa0fd6872aa8b866929c1537ce2905a6dba
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=alpha 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>

All warnings (new ones prefixed by >>):

>> sound/pci/hda/patch_cirrus.c:1686:6: warning: no previous prototype for 
>> 'cs8409_jack_unsol_event' [-Wmissing-prototypes]
    1686 | void cs8409_jack_unsol_event(struct hda_codec *codec, unsigned int 
res)
         |      ^~~~~~~~~~~~~~~~~~~~~~~


vim +/cs8409_jack_unsol_event +1686 sound/pci/hda/patch_cirrus.c

  1678  
  1679  /*
  1680   * In the case of CS8409 we do not have unsolicited events from NID's 
0x24
  1681   * and 0x34 where hs mic and hp are connected. Companion codec CS42L42 
will
  1682   * generate interrupt via gpio 4 to notify jack events. We have to 
overwrite
  1683   * generic snd_hda_jack_unsol_event(), read CS42L42 jack detect status 
registers
  1684   * and then notify status via generic snd_hda_jack_unsol_event() call.
  1685   */
> 1686  void cs8409_jack_unsol_event(struct hda_codec *codec, unsigned int res)
  1687  {
  1688          struct cs_spec *spec = codec->spec;
  1689          int status_changed = 0;
  1690          unsigned int reg_cdc_status = 0;
  1691          unsigned int reg_hs_status = 0;
  1692          unsigned int reg_ts_status = 0;
  1693          int type = 0;
  1694          struct hda_jack_tbl *jk;
  1695  
  1696          /* jack_unsol_event() will be called every time gpio line 
changing state.
  1697           * In this case gpio4 line goes up as a result of reading 
interrupt status
  1698           * registers in previous cs8409_jack_unsol_event() call.
  1699           * We don't need to handle this event, ignoring...
  1700           */
  1701          if ((res & (1 << 4)))
  1702                  return;
  1703  
  1704          mutex_lock(&spec->cs8409_i2c_mux);
  1705  
  1706          /* Read jack detect status registers */
  1707          reg_cdc_status = cs8409_i2c_read(codec, CS42L42_I2C_ADDR, 
0x1308, 1);
  1708          reg_hs_status = cs8409_i2c_read(codec, CS42L42_I2C_ADDR, 
0x1124, 1);
  1709          reg_ts_status = cs8409_i2c_read(codec, CS42L42_I2C_ADDR, 
0x130f, 1);
  1710  
  1711          /* Clear interrupts */
  1712          cs8409_i2c_read(codec, CS42L42_I2C_ADDR, 0x1b7b, 1);
  1713          cs8409_i2c_read(codec, CS42L42_I2C_ADDR, 0x1308, 1);
  1714          cs8409_i2c_read(codec, CS42L42_I2C_ADDR, 0x130f, 1);
  1715  
  1716          mutex_unlock(&spec->cs8409_i2c_mux);
  1717  
  1718          /* HSDET_AUTO_DONE */
  1719          if (reg_cdc_status & CS42L42_HSDET_AUTO_DONE) {
  1720  
  1721                  type = ((reg_hs_status & CS42L42_HSTYPE_MASK) + 1);
  1722                  /* CS42L42 reports optical jack as type 4
  1723                   * We don't handle optical jack
  1724                   */
  1725                  if (type != 4) {
  1726                          if (!spec->cs42l42_hp_jack_in) {
  1727                                  status_changed = 1;
  1728                                  spec->cs42l42_hp_jack_in = 1;
  1729                          }
  1730                          /* type = 3 has no mic */
  1731                          if ((!spec->cs42l42_mic_jack_in) && (type != 
3)) {
  1732                                  status_changed = 1;
  1733                                  spec->cs42l42_mic_jack_in = 1;
  1734                          }
  1735                  }
  1736  
  1737          } else {
  1738                  /* TIP_SENSE INSERT/REMOVE */
  1739                  switch (reg_ts_status) {
  1740                  case CS42L42_JACK_INSERTED:
  1741                          cs8409_cs42l42_run_jack_detect(codec);
  1742                          break;
  1743  
  1744                  case CS42L42_JACK_REMOVED:
  1745                          if (spec->cs42l42_hp_jack_in || 
spec->cs42l42_mic_jack_in) {
  1746                                  status_changed = 1;
  1747                                  spec->cs42l42_hp_jack_in = 0;
  1748                                  spec->cs42l42_mic_jack_in = 0;
  1749                          }
  1750                          break;
  1751  
  1752                  default:
  1753                          /* jack in transition */
  1754                          status_changed = 0;
  1755                          break;
  1756                  }
  1757          }
  1758  
  1759          if (status_changed) {
  1760  
  1761                  snd_hda_set_pin_ctl(codec, CS8409_CS42L42_SPK_PIN_NID,
  1762                                  (spec->cs42l42_hp_jack_in)?0 : PIN_OUT);
  1763  
  1764                  /* Report jack*/
  1765                  jk = snd_hda_jack_tbl_get_mst(codec, 
CS8409_CS42L42_HP_PIN_NID, 0);
  1766                  if (jk) {
  1767                          snd_hda_jack_unsol_event(codec,
  1768                                  (jk->tag << AC_UNSOL_RES_TAG_SHIFT) & 
AC_UNSOL_RES_TAG);
  1769                  }
  1770                  /* Report jack*/
  1771                  jk = snd_hda_jack_tbl_get_mst(codec, 
CS8409_CS42L42_AMIC_PIN_NID, 0);
  1772                  if (jk) {
  1773                          snd_hda_jack_unsol_event(codec,
  1774                                  (jk->tag << AC_UNSOL_RES_TAG_SHIFT) & 
AC_UNSOL_RES_TAG);
  1775                  }
  1776          }
  1777  }
  1778  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

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