Re: [alsa-devel] [PATCH v5 3/3] ASoC: fsl: add imx-es8328 machine driver

On Fri, Jun 20, 2014 at 02:14:19PM +0800, Sean Cross wrote:

• ES8328 pins:
• • LOUT1
• • LOUT2
• • ROUT1
• • ROUT2

These should be covered in the binding document for the CODEC.

• /* Setup clocks */
• data->codec_clk = devm_clk_get(dev, NULL);
• if (IS_ERR(data->codec_clk)) {

• dev_err(dev,
  

• 	"codec clock missing or invalid\n");
  

• goto fail;
  

• }
• ret = clk_prepare_enable(data->codec_clk);
• if (ret) {

• dev_err(data->dev, "unable to prepare codec clk\n");
  

• return ret;
  

• }

The CODEC driver should manage the clock for the CODEC, if it's mapped properly attempting to look it up using the card device should fail.