WhyCan Forum(哇酷开发者社区)

[    1.207374] i2c /dev entries driver
[    1.211108] sun8i-v3s-pinctrl 1c20800.pinctrl: unknown pin E21
[    1.217028] sun8i-v3s-pinctrl 1c20800.pinctrl: unknown pin E22
[    1.224095] input: ns2009_ts as /devices/platform/soc/1c2b000.i2c/i2c-0/0-0048/input/input0
[    1.233918] sunxi-wdt 1c20ca0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)

设备树是
&pio
{
i2c1_pins: i2c1-pins {
                pins = "E21", "E22";
                function = "i2c1";
            };
}

&i2c1 {
    pinctrl-0 = <&i2c1_pins>;
    status = "okay";
    ns2009: ns2009@48 {
        compatible = "nsiway,ns2009";
        reg = <0x48>;
    };
};

内核是用5.2的