Hi Andi, 2017-01-07 21:40 GMT+09:00 Andi Shyti <andi@xxxxxxxxxxx>: > Hi Chanwoo, > >> >>> + touchkey@20 { >> >>> + compatible = "samsung,tm2-touchkey"; >> >>> + reg = <0x20>; >> >>> + interrupt-parent = <&gpa3>; >> >>> + interrupts = <2 IRQ_TYPE_EDGE_FALLING>; >> >>> + vcc-supply = <&ldo32_reg>; >> >>> + vdd-supply = <&ldo33_reg>; >> >>> + }; >> >>> +}; >> >>> + >> >>> &ldo31_reg { >> >>> regulator-name = "TSP_VDD_1.85V_AP"; >> >>> regulator-min-microvolt = <1850000>; >> >> I repiled the touchkey driver against compatible name. >> Usually, when developing the device driver, we use the specific h/w name >> but in this patch, the touckey dt node uses the h/w board name instead of >> original touckhey name. > > this should be a device specifically done for the tm2 and we are > not sure who is the manufacturer of the device. In order to not As I knew, this touchkey was made by Cypress semiconductor. But, for more correct information, you may try to find it. > assign the device to the wrong manufacturer, we preferred calling > it Samsung as it is in a Samsung device. As you mentioned, Samsung made not this touchkey device. It is certainly wrong manufacturer. I have not seen to use the h/w board name as the peripheral device name. I don't prefer to use the inaccurate manufacturer and device name. -- Best Regards, Chanwoo Choi -- 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