Re: [PATCH 2/3] ASoC: meson: s4:support for the on-chip audio

[kernel test robot <lkp@intel.com>]

Hi jiebing,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 6ecd20965bdc21b265a0671ccf36d9ad8043f5ab]

url:    https://github.com/intel-lab-lkp/linux/commits/jiebing-chen-via-B4-Relay/ASoC-dt-bindings-Add-Amlogic-S4-audio/20250113-143911
base:   6ecd20965bdc21b265a0671ccf36d9ad8043f5ab
patch link:    https://lore.kernel.org/r/20250113-audio_drvier-v1-2-8c14770f38a0%40amlogic.com
patch subject: [PATCH 2/3] ASoC: meson: s4:support for the on-chip audio
config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20250114/202501141658.tM15P1iG-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250114/202501141658.tM15P1iG-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202501141658.tM15P1iG-lkp@intel.com/

All warnings (new ones prefixed by >>):

   sound/soc/meson/s4-tocodec-control.c: In function 'aml_tocodec_sel_set':
>> sound/soc/meson/s4-tocodec-control.c:151:15: warning: unused variable 'clk_name' [-Wunused-variable]
     151 |         char *clk_name;
         |               ^~~~~~~~


vim +/clk_name +151 sound/soc/meson/s4-tocodec-control.c

   137	
   138	static int aml_tocodec_sel_set(struct snd_soc_dapm_widget *w)
   139	{
   140		struct snd_soc_dai *be;
   141		struct axg_tdm_stream *stream;
   142		struct axg_tdm_iface *iface;
   143		struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
   144		struct toacodec *priv = snd_soc_component_get_drvdata(component);
   145		unsigned int tdm_id = TDM_A_PAD;
   146		const char *dai_widget_name;
   147		struct snd_soc_dapm_path *p;
   148		unsigned int lane = 0;
   149		unsigned int val = 0;
   150		struct clk *sclk, *mclk;
 > 151		char *clk_name;
   152		int mclk_id, sclk_id;
   153	
   154		be = tocodec_tdm_get_ahead_be(w);
   155		if (!be) {
   156			dev_err(component->dev, "%s not find the be\n", __func__);
   157			return -EINVAL;
   158		}
   159		stream = snd_soc_dai_dma_data_get_playback(be);
   160		if (!stream) {
   161			dev_err(component->dev, "%s not find the stream\n", __func__);
   162			return -EINVAL;
   163		}
   164		/*we like to use dai id, but it is fixed val*/
   165		dai_widget_name = be->stream[SNDRV_PCM_STREAM_PLAYBACK].widget->name;
   166		if (strstr(dai_widget_name, "TDM_A"))
   167			tdm_id = TDM_A_PAD;
   168		else if (strstr(dai_widget_name, "TDM_B"))
   169			tdm_id = TDM_B_PAD;
   170		else if (strstr(dai_widget_name, "TDM_C"))
   171			tdm_id = TDM_C_PAD;
   172		snd_soc_dapm_widget_for_each_source_path(w, p) {
   173			if (p->connect && p->name) {
   174				lane = aml_simple_strtoull(p->name);
   175				val = lane + tdm_id * S4_LANE_OFFSET;
   176				regmap_field_write(priv->field_dat_sel, val);
   177			}
   178		}
   179		iface = stream->iface;
   180		mclk = iface->mclk;
   181		sclk = iface->sclk;
   182		mclk_id = aml_get_clk_id(__clk_get_name(mclk));
   183		sclk_id = aml_get_clk_id(__clk_get_name(sclk));
   184		regmap_field_write(priv->field_mclk_sel, mclk_id);
   185		regmap_field_write(priv->field_bclk_sel, sclk_id);
   186		regmap_field_write(priv->field_lrclk_sel, sclk_id);
   187	
   188		return 0;
   189	}
   190	

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