Re: [PATCH v1 02/10] ASoC: codecs: Add support for ES8323

[kernel test robot <lkp@xxxxxxxxx>]

Hi Binbin,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 097a44db5747403b19d05a9664e8ec6adba27e3b]

url:    https://github.com/intel-lab-lkp/linux/commits/Binbin-Zhou/ASoC-dt-bindings-Add-Everest-ES8323-Codec/20240905-150958
base:   097a44db5747403b19d05a9664e8ec6adba27e3b
patch link:    https://lore.kernel.org/r/c44a6525d77941ef235825a58a9ea91f9f7d7042.1725518229.git.zhoubinbin%40loongson.cn
patch subject: [PATCH v1 02/10] ASoC: codecs: Add support for ES8323
config: parisc-randconfig-r071-20240906 (https://download.01.org/0day-ci/archive/20240906/202409060459.dJs4SsBG-lkp@xxxxxxxxx/config)
compiler: hppa-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240906/202409060459.dJs4SsBG-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202409060459.dJs4SsBG-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> sound/soc/codecs/es8323.c:173:38: warning: 'es8323_right_pga_controls' defined but not used [-Wunused-const-variable=]
     173 | static const struct snd_kcontrol_new es8323_right_pga_controls =
         |                                      ^~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/sound/tlv.h:10,
                    from sound/soc/codecs/es8323.c:25:
>> sound/soc/codecs/es8323.c:114:35: warning: 'pga_tlv' defined but not used [-Wunused-const-variable=]
     114 | static const DECLARE_TLV_DB_SCALE(pga_tlv, 0, 300, 0);
         |                                   ^~~~~~~
   include/uapi/sound/tlv.h:53:22: note: in definition of macro 'SNDRV_CTL_TLVD_DECLARE_DB_SCALE'
      53 |         unsigned int name[] = { \
         |                      ^~~~
   sound/soc/codecs/es8323.c:114:14: note: in expansion of macro 'DECLARE_TLV_DB_SCALE'
     114 | static const DECLARE_TLV_DB_SCALE(pga_tlv, 0, 300, 0);
         |              ^~~~~~~~~~~~~~~~~~~~


vim +/es8323_right_pga_controls +173 sound/soc/codecs/es8323.c

   113	
 > 114	static const DECLARE_TLV_DB_SCALE(pga_tlv, 0, 300, 0);
   115	static const DECLARE_TLV_DB_SCALE(adc_tlv, -9600, 50, 1);
   116	static const DECLARE_TLV_DB_SCALE(dac_tlv, -9600, 50, 1);
   117	static const DECLARE_TLV_DB_SCALE(out_tlv, -4500, 150, 0);
   118	static const DECLARE_TLV_DB_SCALE(bypass_tlv, 0, 300, 0);
   119	static const DECLARE_TLV_DB_SCALE(bypass_tlv2, -15, 300, 0);
   120	
   121	static const struct snd_kcontrol_new es8323_snd_controls[] = {
   122		SOC_ENUM("3D Mode", es8323_enum[4]),
   123		SOC_ENUM("ALC Capture Function", es8323_enum[5]),
   124		SOC_SINGLE("ALC Capture ZC Switch", ES8323_ADCCONTROL13, 6, 1, 0),
   125		SOC_SINGLE("ALC Capture Decay Time", ES8323_ADCCONTROL12, 4, 15, 0),
   126		SOC_SINGLE("ALC Capture Attack Time", ES8323_ADCCONTROL12, 0, 15, 0),
   127		SOC_SINGLE("ALC Capture NG Threshold", ES8323_ADCCONTROL14, 3, 31, 0),
   128		SOC_ENUM("ALC Capture NG Type", es8323_enum[6]),
   129		SOC_SINGLE("ALC Capture NG Switch", ES8323_ADCCONTROL14, 0, 1, 0),
   130		SOC_SINGLE("ZC Timeout Switch", ES8323_ADCCONTROL13, 6, 1, 0),
   131		SOC_DOUBLE_R_TLV("Capture Digital Volume", ES8323_LADC_VOL,
   132				 ES8323_RADC_VOL, 0, 192, 1, adc_tlv),
   133		SOC_SINGLE("Capture Mute", ES8323_ADC_MUTE, 2, 1, 0),
   134		SOC_SINGLE_TLV("Left Channel Capture Volume", ES8323_ADCCONTROL1, 4, 8,
   135			       0, bypass_tlv),
   136		SOC_SINGLE_TLV("Right Channel Capture Volume", ES8323_ADCCONTROL1, 0,
   137			       8, 0, bypass_tlv),
   138		SOC_ENUM("Playback De-emphasis", es8323_enum[7]),
   139		SOC_ENUM("Capture Polarity", es8323_enum[8]),
   140		SOC_DOUBLE_R_TLV("PCM Volume", ES8323_LDAC_VOL, ES8323_RDAC_VOL,
   141				 0, 192, 1, dac_tlv),
   142		SOC_SINGLE_TLV("Left Mixer Left Bypass Volume", ES8323_DACCONTROL17, 3,
   143			       7, 1, bypass_tlv2),
   144		SOC_SINGLE_TLV("Right Mixer Right Bypass Volume", ES8323_DACCONTROL20,
   145			       3, 7, 1, bypass_tlv2),
   146		SOC_DOUBLE_R_TLV("Output 1 Playback Volume", ES8323_LOUT1_VOL,
   147				 ES8323_ROUT1_VOL, 0, 33, 0, out_tlv),
   148		SOC_DOUBLE_R_TLV("Output 2 Playback Volume", ES8323_LOUT2_VOL,
   149				 ES8323_ROUT2_VOL, 0, 33, 0, out_tlv),
   150	};
   151	
   152	static const struct snd_kcontrol_new es8323_left_dac_mux_controls =
   153		SOC_DAPM_ENUM("Route", es8323_left_dac_enum);
   154	
   155	static const struct snd_kcontrol_new es8323_right_dac_mux_controls =
   156		SOC_DAPM_ENUM("Route", es8323_right_dac_enum);
   157	
   158	static const struct snd_kcontrol_new es8323_left_line_controls =
   159		SOC_DAPM_ENUM("LLIN Mux", es8323_llin_enum);
   160	
   161	static const struct snd_kcontrol_new es8323_right_line_controls =
   162		SOC_DAPM_ENUM("RLIN Mux", es8323_rlin_enum);
   163	
   164	/* Differential Mux */
   165	static const struct snd_kcontrol_new es8323_diffmux_controls =
   166		SOC_DAPM_ENUM("Route2", es8323_diff_enum);
   167	
   168	/* Mono ADC Mux */
   169	static const struct snd_kcontrol_new es8323_monomux_controls =
   170		SOC_DAPM_ENUM("Mono Mux", es8323_mono_enum);
   171	
   172	/* Right PGA Mux */
 > 173	static const struct snd_kcontrol_new es8323_right_pga_controls =
   174		SOC_DAPM_ENUM("Route", es8323_enum[3]);
   175	

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