15 Mar
2021
15 Mar
'21
5 p.m.
+static int rt5682_clk_enable(struct snd_pcm_substream *substream) +{
- int ret;
- struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
- /*
* Set wclk to 48000 because the rate constraint of this driver is* 48000. ADAU7002 spec: "The ADAU7002 requires a BCLK rate that is* minimum of 64x the LRCLK sample rate." RT5682 is the only clk* source so for all codecs we have to limit bclk to 64X lrclk.*/- clk_set_rate(rt5682_dai_wclk, 48000);
- clk_set_rate(rt5682_dai_bclk, 48000 * 64);
- ret = clk_prepare_enable(rt5682_dai_bclk);
- if (ret < 0) {
dev_err(rtd->dev, "can't enable master clock %d\n", ret);return ret;- }
- return ret;
+}
Out of curiosity, is there a reason why you use clk_prepare_enable() for the bclk but not for the wclk?