Interfacing (DSI, CSI, I2C, etc.) • Re: Pi 5 Waveshare DSI 4.3 inch Capacitive Display Backlight Problem

Code:

38: ip    pd | hi // CD0_SDA/GPIO38 = input39: ip    pd | hi // CD0_SCL/GPIO39 = input40: a2    pu | lo // CD1_SDA/GPIO40 = SDA441: a2    pu | hi // CD1_SCL/GPIO41 = SCL4

Code:

/dts-v1/;/plugin/;#include "edt-ft5406.dtsi"/ {/* No compatible as it will have come from edt-ft5406.dtsi */dsi_frag: fragment@0 {target = <&dsi1>;__overlay__ {#address-cells = <1>;#size-cells = <0>;status = "okay";port {dsi_out: endpoint {remote-endpoint = <&bridge_in>;};};bridge@0 {reg = <0>;compatible = "toshiba,tc358762";vddc-supply = <&reg_bridge>;ports {#address-cells = <1>;#size-cells = <0>;port@0 {reg = <0>;bridge_in: endpoint {remote-endpoint = <&dsi_out>;};};port@1 {reg = <1>;bridge_out: endpoint {remote-endpoint = <&panel_in>;};};};};};};fragment@1 {target-path = "/";__overlay__ {panel_disp: panel_disp@1 {reg = <1>;compatible = "raspberrypi,7inch-dsi", "simple-panel";backlight = <&reg_display>;power-supply = <&reg_display>;port {panel_in: endpoint {remote-endpoint = <&bridge_out>;};};};reg_bridge: reg_bridge@1 {reg = <1>;compatible = "regulator-fixed";regulator-name = "bridge_reg";gpio = <&reg_display 0 0>;vin-supply = <&reg_display>;enable-active-high;};};};i2c_frag: fragment@2 {target = <&i2c_csi_dsi>;__overlay__ {#address-cells = <1>;#size-cells = <0>;status = "okay";reg_display: reg_display@45 {compatible = "raspberrypi,7inch-touchscreen-panel-regulator";reg = <0x45>;gpio-controller;#gpio-cells = <2>;};};};fragment@3 {target = <&i2c0if>;__overlay__ {status = "okay";};};fragment@4 {target = <&i2c0mux>;__overlay__ {status = "okay";};};fragment@5 {target = <&ft5406>;__overlay__ {vcc-supply = <&reg_display>;reset-gpio = <&reg_display 1 1>;};};__overrides__ {dsi0 = <&dsi_frag>, "target:0=",<&dsi0>,       <&i2c_frag>, "target:0=",<&i2c_csi_dsi0>,       <&ts_i2c_frag>, "target:0=",<&i2c_csi_dsi0>,       <&panel_disp>, "reg:0=0",       <&reg_bridge>, "reg:0=0",       <&reg_bridge>, "regulator-name=bridge_reg_0";disable_touch = <&ft5406>, "status=disabled";};};

Code:

root@raspberrypi5_custom:~# lsmodModule                  Size  Used byipv6                  622592  18hci_uart               81920  0btbcm                  65536  1 hci_uartbluetooth             655360  3 hci_uart,btbcmrpivid_hevc            81920  0aes_ce_blk             65536  0v4l2_mem2mem           81920  1 rpivid_hevcaes_ce_cipher          65536  1 aes_ce_blkbrcmfmac              360448  0pisp_be                65536  0videobuf2_dma_contig    65536  2 pisp_be,rpivid_hevcvideobuf2_memops       65536  1 videobuf2_dma_contigghash_ce               65536  0videobuf2_v4l2         65536  3 pisp_be,rpivid_hevc,v4l2_mem2memgf128mul               65536  1 ghash_ceecdh_generic           65536  1 bluetoothvideobuf2_common      114688  6 pisp_be,videobuf2_dma_contig,videobuf2_v4l2,rpivid_hevc,v4l2_mem2mem,videobuf2_memopsecc                    81920  1 ecdh_genericsha2_ce                65536  0brcmutil               65536  1 brcmfmaccfg80211              983040  1 brcmfmacsha256_arm64           65536  1 sha2_celibaes                 65536  4 aes_ce_cipher,bluetooth,ghash_ce,aes_ce_blksha1_ce                65536  0rfkill                 65536  2 bluetooth,cfg80211videodev              327680  5 pisp_be,videobuf2_v4l2,videobuf2_common,rpivid_hevc,v4l2_mem2memspidev                 65536  0edt_ft5x06             65536  0v3d                   131072  0raspberrypi_hwmon      65536  0spi_bcm2835            65536  0mc                     98304  6 videodev,pisp_be,videobuf2_v4l2,videobuf2_common,rpivid_hevc,v4l2_mem2memi2c_brcmstb            65536  0gpu_sched             114688  1 v3ddrm_rp1_dsi            65536  1drm_shmem_helper       65536  1 v3di2c_designware_platform    65536  0i2c_designware_core    65536  1 i2c_designware_platformrp1_adc                65536  0raspberrypi_gpiomem    65536  0gpio_keys              65536  0uio_pdrv_genirq        65536  0nvmem_rmem             65536  0uio                    65536  1 uio_pdrv_genirq