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asoc: codecs: probe defer till mclk is available for wcd9360

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Sometimes codec enumerates before APPS APR communication happens
with ADSP. Since wcd9360 MCLK request goes through APR, defer the
codec probe till mclk is available.

Change-Id: Ief5bb80f4c62fcf58a8cc93f11a9b4536f883d1e
Signed-off-by: Vidyakumar Athota <vathota@codeaurora.org>
This commit is contained in:
Vidyakumar Athota 2018-03-27 20:50:35 -07:00
commit c3b3df985d
1 changed files with 10 additions and 0 deletions
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10
asoc/codecs/wcd9360/wcd9360.c
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@ -8013,6 +8013,16 @@ static int pahu_probe(struct platform_device *pdev)
pahu->wcd_ext_clk = wcd_ext_clk;
dev_dbg(&pdev->dev, "%s: MCLK Rate = %x\n", __func__,
pahu->wcd9xxx->mclk_rate);
/* Probe defer if mlck is failed */
ret = clk_prepare_enable(pahu->wcd_ext_clk);
if (ret) {
dev_dbg(pahu->dev, "%s: ext clk enable failed\n",
__func__);
ret = -EPROBE_DEFER;
goto err_cdc_reg;
}
clk_disable_unprepare(pahu->wcd_ext_clk);
/* Update codec register default values */
pahu_update_reg_defaults(pahu);
__pahu_enable_efuse_sensing(pahu);