On Thu, Aug 20, 2020 at 03:53:41PM +0800, Gene Chen wrote: > + mrd->regmap = dev_get_regmap(pdev->dev.parent, NULL); > + if (!mrd->regmap) { > + dev_err(&pdev->dev, "Failed to get parent regmap\n"); > + return -ENODEV; > + } > +static const struct of_device_id __maybe_unused mt6360_regulator_of_id[] = { > + { .compatible = "mediatek,mt6360-regulator", }, > + {}, > +}; > +MODULE_DEVICE_TABLE(of, mt6360_regulator_of_id); This device only exists in the context of a single parent device, there should be no need for a compatible string here - this is just a detail of how Linux does things. The MFD should just instntiate the platform device.
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