On Fri, Aug 07, 2020 at 05:14:42PM +0800, Shengjiu Wang wrote: > Regmap initialization may return -EPROBE_DEFER for clock > may not be ready, so check -EPROBE_DEFER error type before > start another Regmap initialization. > > Signed-off-by: Shengjiu Wang <[email protected]> > --- > sound/soc/fsl/fsl_sai.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c > index a22562f2df47..eb933fe9b6d1 100644 > --- a/sound/soc/fsl/fsl_sai.c > +++ b/sound/soc/fsl/fsl_sai.c > @@ -927,7 +927,7 @@ static int fsl_sai_probe(struct platform_device *pdev) > "bus", base, &fsl_sai_regmap_config); > > /* Compatible with old DTB cases */ > - if (IS_ERR(sai->regmap)) > + if (IS_ERR(sai->regmap) && PTR_ERR(sai->regmap) != -EPROBE_DEFER) > sai->regmap = devm_regmap_init_mmio_clk(&pdev->dev, > "sai", base, &fsl_sai_regmap_config); > if (IS_ERR(sai->regmap)) {
In that case, might need a !EPROBE_DEFER check for this fallback devm_regmap_init_mmio_clk at "sai" clock too?
