ASoC: topology: Modify clock gating parameter parsing to switch

This improves the coding style of this piece of code.
Signed-off-by: Kirill Marinushkin <k.marinushkin@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Pan Xiuli <xiuli.pan@linux.intel.com>
Cc: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Cc: linux-kernel@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/soc-topology.c

@@ -2007,11 +2007,19 @@ static void set_link_hw_format(struct snd_soc_dai_link *link,
 		link->dai_fmt = hw_config->fmt & SND_SOC_DAIFMT_FORMAT_MASK;
 
 		/* clock gating */
-		if (hw_config->clock_gated == SND_SOC_TPLG_DAI_CLK_GATE_GATED)
+		switch (hw_config->clock_gated) {
+		case SND_SOC_TPLG_DAI_CLK_GATE_GATED:
 			link->dai_fmt |= SND_SOC_DAIFMT_GATED;
-		else if (hw_config->clock_gated ==
-			 SND_SOC_TPLG_DAI_CLK_GATE_CONT)
+			break;
+
+		case SND_SOC_TPLG_DAI_CLK_GATE_CONT:
 			link->dai_fmt |= SND_SOC_DAIFMT_CONT;
+			break;
+
+		default:
+			/* ignore the value */
+			break;
+		}
 
 		/* clock signal polarity */
 		invert_bclk = hw_config->invert_bclk;