ASoC: fsl_micfil: drop fsl_micfil_set_mclk_rate()

All that the .set_sysclk hook in the micfil driver does is to pass
the sysclk frequency to fsl_micfil_set_mclk_rate(). This function
expects the sample rate as argument though, not any kind of sysclk
frequency. The resulting rate setting of the clock is overwritten
in hw_params anyway, so drop this altogether.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Link: https://lore.kernel.org/r/20220414162249.3934543-4-s.hauer@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/fsl/fsl_micfil.c

@@ -358,30 +358,10 @@ static int fsl_micfil_hw_params(struct snd_pcm_substream *substream,
 	return 0;
 }
 
-static int fsl_micfil_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
-				     unsigned int freq, int dir)
-{
-	struct fsl_micfil *micfil = snd_soc_dai_get_drvdata(dai);
-	struct device *dev = &micfil->pdev->dev;
-
-	int ret;
-
-	if (!freq)
-		return 0;
-
-	ret = fsl_micfil_set_mclk_rate(micfil, freq);
-	if (ret < 0)
-		dev_err(dev, "failed to set mclk[%lu] to rate %u\n",
-			clk_get_rate(micfil->mclk), freq);
-
-	return ret;
-}
-
 static const struct snd_soc_dai_ops fsl_micfil_dai_ops = {
 	.startup = fsl_micfil_startup,
 	.trigger = fsl_micfil_trigger,
 	.hw_params = fsl_micfil_hw_params,
-	.set_sysclk = fsl_micfil_set_dai_sysclk,
 };
 
 static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai)