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,

'' spi-dev = <&st7789v>;'' the spi-dev property in the mipi_dbi node should point to the SPI bus (&spi2), not to the display controller.

And the nesting of your nodes isn't quite right - the ST7789V should be a child of the MIPI DBI node, but they should be properly separated.

So, try this

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

&spi2 {
    status = "okay";
    sck-pin = <15>;
    mosi-pin = <13>;
    cs-gpios = <&gpio0 17 GPIO_ACTIVE_LOW>;
};

mipi_dbi {
    compatible = "zephyr,mipi-dbi-spi";
    reset-gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
    dc-gpios = <&gpio0 20 GPIO_ACTIVE_HIGH>;
    spi-dev = <&spi2>;
    #address-cells = <1>;
    #size-cells = <0>;

    st7789v: st7789v@0 {
        compatible = "sitronix,st7789v";
        reg = <0>;
        mipi-max-frequency = <8000000>;
        width = <240>;
        height = <240>;
        pixel-format = "rgb565";
        x-offset = <0>;
        y-offset = <0>;
        
        buswidth = <8>;
        mipi-mode = <2>; // SPI 4-wire
        
        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];
        backlight-gpios = <&gpio0 19 GPIO_ACTIVE_HIGH>;
    };
};

[Devcodes]

yes . I fixed the overlay issues .  but am now facing the warning with the proj. conf . how to resolve it .  

my proj.conf is as follows:

# Logging

CONFIG_LOG=y

CONFIG_LOG_DEFAULT_LEVEL=4

# Display framework

CONFIG_DISPLAY=y

CONFIG_DISPLAY_LOG_LEVEL_DBG=y

# ST7789V driver via MIPI-DBI SPI interface

CONFIG_MIPI_DBI=y

CONFIG_MIPI_DBI_SPI=y

#CONFIG_SITRONIX_ST7789V=y

#CONFIG_SITRONIX_ST7789V_RGB565=y

CONFIG_DISPLAY_ST7789V=y

CONFIG_DISPLAY_ST7789V_RGB565=y

 

# SPI & GPIO drivers

CONFIG_SPI=y

CONFIG_SPI_NRFX=y

CONFIG_GPIO=y

 

Cmakelists.txt:

# SPDX-License-Identifier: Apache-2.0

cmake_minimum_required(VERSION 3.20.0)

find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})

project(st7789v_display_example)

target_sources(app PRIVATE src/main.c)

# Add the ST7789V driver source file

#zephyr_library()

zephyr_library_include_directories(drivers/display)

zephyr_library_sources(${ZEPHYR_BASE}/drivers/display/display_st7789v.c) . please let me know if anything am miising out?