Facing the issue with the nrf52840-nrf52840dk.overlay file

[Devcodes]

Hi , am working on nrf52840 .with nrf desktop v2.9.1 . I am working on display ST7789V with the nrf52840 using Zephyr. I have integrated overlay file . while working on it am facing the issue like MiPi_dbi error . even though i integrated it still it is not getting fixed . my .overlay file is as follows: 

/ {

    chosen {

        zephyr,display = &st7789v;

    };

};

/* Configure SPI2 for the display */

&spi2 {

    compatible = "nordic,nrf-spi";

    status = "okay";

    sck-pin = <13>;

    mosi-pin = <15>;

    cs-gpios = <&gpio0 28 GPIO_ACTIVE_LOW>;

    st7789v: st7789v@0 {

        compatible = "sitronix,st7789v";

        reg = <0>;

        spi-max-frequency = <8000000>;

        label = "ST7789V";

        dc-gpios = <&gpio0 19 GPIO_ACTIVE_HIGH>;

        reset-gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;

        backlight-gpios = <&gpio0 31 GPIO_ACTIVE_HIGH>;

        width = <240>;

        height = <240>;

        pixel-format = "rgb565";

        x-offset = <0>;

        y-offset = <0>;

        /* Add missing MIPI-DBI property */

        mipi-mode = <0x02>; /* SPI 4-wire mode */

        buswidth = <8>;

        gctrl = <0x35>;

        vcom = <0x19>;

        vrhs = <0x12>;

        vdvs = <0x20>;

        mdac = <0x00>;

        lcm = <0x2c>;

        colmod = <0x05>;

        gamma = <0x01>;

        porch-param = [0C 0C 00 33 33];

        cmd2en-param = [5A 69 02 01];

        pwctrl1-param = [A4 A1];

        pvgam-param = [D0 04 0D 11 13 2B 3F 54 4C 18 0D 0B 1F 23];

        nvgam-param = [D0 04 0C 11 13 2C 3F 44 51 2F 1F 1F 20 23];

        ram-param = [00 F0];

        rgb-param = [CD 08 14];

    };

};

also attaching my proj.conf file as awell

# Enable logging

CONFIG_LOG=y

CONFIG_LOG_DEFAULT_LEVEL=4

# Enable display support

CONFIG_DISPLAY=y

CONFIG_DISPLAY_LOG_LEVEL_DBG=y

# Enable ST7789V display driver

CONFIG_ST7789V=y

CONFIG_ST7789V_RGB565=y

# Enable SPI (needed for ST7789V)

CONFIG_SPI=y

CONFIG_SPI_NRFX=y

CONFIG_MIPI_DBI=y

# Enable GPIO (needed for reset, backlight, and DC signals)

CONFIG_GPIO=y

 any leads /how can i resolve this

[Kazi Afroza Sultana]

Hello,

The error I can see from screenshot seems related to device tree configuration for the display as child node of SPI. 

According to the migration guide Migration guide to Zephyr v3.7.0, ''ST7789V based displays now use the MIPI DBI driver class. These displays must now be declared within a MIPI DBI driver wrapper device, which will manage interfacing with the display. (GitHub #73750) Note that the cmd-data-gpios pin has changed polarity with this update, to align better with the new dc-gpios name.''

So, you need to set the display ST7789V within mipi dbi driver. Accordign the migration guide you can change the overlay file follwoing way

/* Include the MIPI DBI definitions */
#include <zephyr/dt-bindings/mipi_dbi/mipi_dbi.h>

/ {
    chosen {
        zephyr,display = &st7789v;
    };
};

/* Configure SPI2 for the display */
&spi2 {
    compatible = "nordic,nrf-spi";
    status = "okay";
    sck-pin = <13>;
    mosi-pin = <15>;
    cs-gpios = <&gpio0 28 GPIO_ACTIVE_LOW>;
};

mipi_dbi {
    compatible = "zephyr,mipi-dbi-spi";
    reset-gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
    dc-gpios = <&gpio0 19 GPIO_ACTIVE_HIGH>;
    spi-dev = <&spi2>;
    #address-cells = <1>;
    #size-cells = <0>;

    st7789v: st7789v@0 {
        compatible = "sitronix,st7789v";
        reg = <0>;
        mipi-max-frequency = <8000000>;
        mipi-mode = <MIPI_DBI_MODE_SPI_4WIRE>;
        backlight-gpios = <&gpio0 31 GPIO_ACTIVE_HIGH>;
        width = <240>;
        height = <240>;
        pixel-format = "rgb565";
        x-offset = <0>;
        y-offset = <0>;
        gctrl = <0x35>;
        vcom = <0x19>;
        vrhs = <0x12>;
        vdvs = <0x20>;
        mdac = <0x00>;
        lcm = <0x2c>;
        colmod = <0x05>;
        gamma = <0x01>;
        porch-param = [0C 0C 00 33 33];
        cmd2en-param = [5A 69 02 01];
        pwctrl1-param = [A4 A1];
        pvgam-param = [D0 04 0D 11 13 2B 3F 54 4C 18 0D 0B 1F 23];
        nvgam-param = [D0 04 0C 11 13 2C 3F 44 51 2F 1F 1F 20 23];
        ram-param = [00 F0];
        rgb-param = [CD 08 14];
    };
};

[Devcodes]

Hi, I changed my .overlay file as below:                                                                                                                                                                      

/ {

    chosen {

        zephyr,display = &st7789v;

    };

};

/* Configure SPI2 for ST7789V */

&spi2 {

    status = "okay";

    sck-pin = <15>;  /* SCK  -> P0.15 */

    mosi-pin = <13>; /* MOSI -> P0.13 */

    cs-gpios = <&gpio0 17 GPIO_ACTIVE_LOW>; /* CS -> P0.17 */

   

    /* MIPI-DBI wrapper for ST7789V */

    mipi_dbi: mipi_dbi@0 {

        compatible = "zephyr,mipi-dbi-spi";

        reg = <0>;  /* SPI Chip Select 0 */

        reset-gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;

        dc-gpios = <&gpio0 20 GPIO_ACTIVE_HIGH>;

        spi-dev = <&spi2>;

        /*  Ensure SPI settings are inherited */

       // spi-max-frequency = ;  /*  Added here too */

        #address-cells = <1>;

        #size-cells = <0>;

        /* ST7789V Device Node */

        st7789v: st7789v@0 {

            compatible = "sitronix,st7789v";

            reg = <0>;  

           /*  SPI Configuration */

           spi-max-frequency = <8000000>;  /*  Corrected placement */

            /* Display properties */

            width = <240>;

            height = <240>;

            pixel-format = "rgb565";

            x-offset = <0>;

            y-offset = <0>;

            /* MIPI-DBI properties */

            buswidth = <8>;

            mipi-mode = <2>; /* SPI 4-wire mode */

            /* ST7789V Init Parameters */

            gctrl = <0x35>;

            vcom = <0x19>;

            vrhs = <0x12>;

            vdvs = <0x20>;

            mdac = <0x00>;

            lcm = <0x2c>;

            colmod = <0x05>;

            gamma = <0x01>;

            /* Additional parameters */

            porch-param = [0C 0C 00 33 33];

            cmd2en-param = [5A 69 02 01];

            pwctrl1-param = [A4 A1];

            pvgam-param = [D0 04 0D 11 13 2B 3F 54 4C 18 0D 0B 1F 23];

            nvgam-param = [D0 04 0C 11 13 2C 3F 44 51 2F 1F 1F 20 23];

            ram-param = [00 F0];

            rgb-param = [CD 08 14];

            backlight-gpios = <&gpio0 19 GPIO_ACTIVE_HIGH>;

        };

    };

};                                                                                                                                                                                                                               still am facing the error as devicetree error: how to resolve it?