touchscreen: sun4i-ts: startup/configuration problem

Hello,
I'm currently trying to get the sun4i-ts working for the allwinner f1c200s. I already checked the registers are the same and I have adjusted the offset in the device tree. I added debug output to the driver to see, where it gets stuck.

The result is that "thermal = devm_thermal_zone_of_sensor_register(ts->dev, 0, ts, &sun4i_ts_tz_ops);" is returning "-EPROBE_DEFER"..

It is probably an configuration error on my side, the device tree will be attached at the end. I would be glad if someone could help me.

Thanks,
Thomas

/dts-v1/;
#include "suniv-f1c100s.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/thermal/thermal.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include "sunxi-common-regulators.dtsi"

/ {
    model = "MC4L";
    compatible = "mec,mec-mc4l", "allwinner,suniv-f1c100s";

    aliases {
        serial0 = &uart0;
        spi0 = &spi0;
    };

    chosen {
        stdout-path = "serial0:115200n8";
    };

    cpus {
        cpu: cpu {
            compatible = "arm,arm926ej-s";
            device_type = "cpu";
        };
    };

    thermal-zones {
        cpu-thermal: cpu-thermal {
            /* milliseconds */
            polling-delay-passive = <250>;
            polling-delay = <1000>;
            thermal-sensors = <&rtp>;

            cooling-maps {
                map0 {
                    trip = <&cpu_alert0>;
                    cooling-device = <&cpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
                };
            };

            trips {
                cpu_alert0: cpu-alert0 {
                    /* milliCelsius */
                    temperature = <85000>;
                    hysteresis = <2000>;
                    type = "passive";
                };

                cpu_crit: cpu-crit {
                    /* milliCelsius */
                    temperature = <100000>;
                    hysteresis = <2000>;
                    type = "critical";
                };
            };
        };
    };

    soc {
        rtp: rtp@1c24800 {
            compatible = "allwinner,sun4i-a10-ts";
            reg = <0x01c24800 0x100>;
            interrupts = <20>;
            allwinner,ts-attached;
            #thermal-sensor-cells = <0>;
            pinctrl-names = "default";
            pinctrl-0 = <&rtp_pins>;
        };
    };

    panel: panel {
        compatible = "qiaodian,qd43003c0-40", "simple-panel";
        #address-cells = <1>;
        #size-cells = <0>;
        enable-gpios = <&pio 4 6 GPIO_ACTIVE_HIGH>;
        power-supply = <&reg_vcc3v3>;

        port@0 {
            reg = <0>;
            #address-cells = <1>;
            #size-cells = <0>;

            panel_input: endpoint@0 {
                reg = <0>;
                remote-endpoint = <&tcon0_out_lcd>;
            };
        };
    };

    reg_vcc3v3: vcc3v3 {
        compatible = "regulator-fixed";
        regulator-name = "vcc3v3";
        regulator-min-microvolt = <3300000>;
        regulator-max-microvolt = <3300000>;
    };
};

&be0 {
    status = "okay";
};

&de {
    status = "okay";
};

&i2c0 {
    pinctrl-0 = <&i2c0_pins>;
    pinctrl-names = "default";
    status = "okay";
};

&mmc0 {
    vmmc-supply = <&reg_vcc3v3>;
    bus-width = <4>;
    broken-cd;
    status = "okay";
};

&pio {
    rtp_pins: rtp-pins {
        pins = "PA0", "PA1", "PA2", "PA3";
        function = "rtp";
    };
};

&tcon0 {
    pinctrl-names = "default";
    pinctrl-0 = <&lcd_rgb666_pins>;
    status = "okay";
};

&tcon0_out {
    tcon0_out_lcd: endpoint@0 {
        reg = <0>;
        remote-endpoint = <&panel_input>;
    };
};

&uart0 {
    pinctrl-names = "default";
    pinctrl-0 = <&uart0_pe_pins>;
    status = "okay";
};

&uart1 {
    pinctrl-names = "default";
    status = "disabled";
};

&uart2 {
    pinctrl-names = "default";
    status = "disabled";
};