Hi! We are getting this in the logs: i2c i2c-0: of_i2c: invalid reg on /soc/i2c@ffc04000/vcc3p3-regulator In the dts we have: socfpga_cyclone5_sockit.dts: regulator_3_3v: vcc3p3-regulator { compatible = "regulator-fixed"; regulator-name = "VCC3P3"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; }; Which seems to trigger drivers/i2c/i2c-core.c: addr_be = of_get_property(node, "reg", &len); if (!addr_be || (len < sizeof(*addr_be))) { dev_err(&adap->dev, "of_i2c: invalid reg on %s\n", ... But we have fixed regulator there, it does not have "reg" property. Git blame says: a430a3455f2c48995e06b359a82a1109a419e9ef. (And no, I don't have exactly mainline kernel here, but it should be close enough.) Best regards, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html