On Sunday 31 May 2015 19:44:02 Daniel Tang wrote: > + > + touchpad@20 { > + compatible = "synaptics_i2c"; > + reg = <0x20>; > + }; > }; While this works, "synaptics_i2c" is not a well-formed DT compatible string, we should do it right. Please submit three patches: a) one patch add "syna" as the vendor string in Documentation/devicetree/bindings/vendor-prefixes.txt As this is a publicly traded company, we use the stock ticker symbol by convention. Cc the patch to devicetree@xxxxxxxxxxxxxxx for review, but I can merge it along with the dts patch if nobody else does b) a patch to add an of_device_id match table to drivers/input/mouse/synaptics_i2c.c, with the proper name of the device. Ideally, this would be the full name of the component that is used here, something like "syna,abc12345-touchscreen". If you have no way of finding out the real name, "syna,i2c-touchscreen" will have to suffice. c) This patch, with the correct string used for compatible. Arnd -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html