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edatec Open Source‌ HMI for 10 inches panel driver #7362

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edatec Open Source‌ HMI for 10 inches panel driver #7362

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89217af
feat(display):eadtec Open Source‌ HMI for 10 inches panel driver
spp-bruk May 13, 2026
28812f8
display: edatec 10inch panel driver and dtoverlay update
FrankLeeEDA May 21, 2026
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1 change: 1 addition & 0 deletions arch/arm/boot/dts/overlays/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -337,6 +337,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
vc4-kms-dpi-hyperpixel4sq.dtbo \
vc4-kms-dpi-panel.dtbo \
vc4-kms-dsi-7inch.dtbo \
vc4-kms-dsi-edatec-panel-101c.dtbo \
vc4-kms-dsi-generic.dtbo \
vc4-kms-dsi-ili79600-10-1inch.dtbo \
vc4-kms-dsi-ili9881-5inch.dtbo \
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12 changes: 12 additions & 0 deletions arch/arm/boot/dts/overlays/README
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Expand Up @@ -5790,6 +5790,18 @@ Params: sizex Touchscreen size x (default 800)
the default DSI1 and i2c_csi_dsi).


Name: vc4-kms-dsi-edatec-panel-101c
Info: Enable the edatec DSI 10" screen.
support ed-dispr-101c.
support ed-dispr5-101c.
support ed-dispr4-101c.
Load: dtoverlay=vc4-kms-dsi-edatec-panel-101c,<param>=<val>
Params: rotation Display rotation {0,90,180,270} (default 270)
interrupt GPIO pin for interrupt signal(default 16)
i2c1 Use i2c-1 and the default DSI1
i2c10 Use i2c-10 and the default DSI1


Name: vc4-kms-dsi-generic
Info: Enable a generic DSI display under KMS.
Default timings are for a 840x480 RGB888 panel.
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117 changes: 117 additions & 0 deletions arch/arm/boot/dts/overlays/vc4-kms-dsi-edatec-panel-101c-overlay.dts
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Original file line number Diff line number Diff line change
@@ -0,0 +1,117 @@
/dts-v1/;
/plugin/;

#include <dt-bindings/gpio/gpio.h>

/ {
compatible = "brcm,bcm2835";

fragment@0 {
target-path = "/";
__overlay__ {
vdd_lcd: fixedregulator_lcd {
compatible = "regulator-fixed";
regulator-name = "vdd_lcd";

gpios = <&reg_display 4 GPIO_ACTIVE_HIGH>;
startup-delay-us = <5000>;
regulator-boot-on;
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@6by9 6by9 May 14, 2026

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This feels like an odd property to be setting on this regulator
Docs at https://github.com/raspberrypi/linux/blob/rpi-6.18.y/Documentation/devicetree/bindings/regulator/regulator.yaml#L44-L51

  It's expected that this regulator was left on by the bootloader.
 If the bootloader didn't leave it on then OS should turn it on
 at boot but shouldn't prevent it from being turned off later.
 This property is intended to only be used for regulators where
 software cannot read the state of the regulator.

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@spp-bruk spp-bruk May 15, 2026

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yes this dts is config for edatec-panel-regulator.c

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@6by9 6by9 May 18, 2026

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Yes, but why is there a need for it to be declared as regulator-boot-on?

enable-active-high;
};
};
};

fragment@1 {
target = <&dsi1>;
__overlay__{
status = "okay";
#address-cells = <1>;
#size-cells = <0>;
port {
dsi_out_port:endpoint {
remote-endpoint = <&panel_dsi_port>;
};
};

ili9881c:ili9881c@0 {
compatible = "rzw,t101p136cq";
status = "okay";
reg = <0>;

reset-gpios = <&reg_display 2 GPIO_ACTIVE_LOW>;
backlight = <&reg_display>;
power-supply = <&vdd_lcd>;
rotation = <270>;

port {
panel_dsi_port: endpoint {
remote-endpoint = <&dsi_out_port>;
};
};
};
};
};

fragment@2 {
target = <&i2c0if>;
__overlay__ {
status = "okay";
};
};

fragment@3 {
target = <&i2c0mux>;
__overlay__ {
status = "okay";
};
};

fragment@4 {
target = <&gpio>;
__overlay__ {
gt928_pins: gt928_pins {
brcm,pins = <16>;
brcm,function = <0>;
brcm,pull = <2>;
};
};
};

i2c_frag: fragment@5 {
target = <&i2c_csi_dsi>;
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";

reg_display: reg_display@27 {
compatible = "edatec,disp-regulator";
reg = <0x27>;
gpio-controller;
#gpio-cells = <2>;
};

gt928:gt928@14 {
compatible = "goodix,gt928";
reg = <0x14>;
pinctrl-names = "default";
pinctrl-0 = <&gt928_pins>;

reset-gpios = <&reg_display 3 GPIO_ACTIVE_HIGH>;
interrupt-parent = <&gpio>;
interrupts = <16 2>;
irq-gpios = <&gpio 16 GPIO_ACTIVE_HIGH>;
};
};
};

__overrides__ {
i2c1 = <&i2c_frag>, "target:0=",<&i2c1>,
<0>, "-3-4+5";
i2c10 = <&i2c_frag>, "target:0=",<&i2c_csi_dsi0>;
interrupt = <&gt928_pins>, "brcm,pins:0",
<&gt928>, "interrupts:0",
<&gt928>, "irq-gpios:4";
rotation = <&ili9881c>, "rotation:0";
};
};
1 change: 1 addition & 0 deletions arch/arm64/configs/bcm2711_defconfig
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Expand Up @@ -861,6 +861,7 @@ CONFIG_REGULATOR_GPIO=y
CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_ATTINY=m
CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_V2=m
CONFIG_REGULATOR_WAVESHARE_TOUCHSCREEN=m
CONFIG_REGULATOR_EDATEC_10INCH=m
CONFIG_RC_CORE=y
CONFIG_BPF_LIRC_MODE2=y
CONFIG_LIRC=y
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1 change: 1 addition & 0 deletions arch/arm64/configs/bcm2711_rt_defconfig
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Expand Up @@ -860,6 +860,7 @@ CONFIG_REGULATOR_GPIO=y
CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_ATTINY=m
CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_V2=m
CONFIG_REGULATOR_WAVESHARE_TOUCHSCREEN=m
CONFIG_REGULATOR_EDATEC_10INCH=m
CONFIG_RC_CORE=y
CONFIG_BPF_LIRC_MODE2=y
CONFIG_LIRC=y
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1 change: 1 addition & 0 deletions arch/arm64/configs/bcm2712_defconfig
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Expand Up @@ -863,6 +863,7 @@ CONFIG_REGULATOR_GPIO=y
CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_ATTINY=m
CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_V2=m
CONFIG_REGULATOR_WAVESHARE_TOUCHSCREEN=m
CONFIG_REGULATOR_EDATEC_10INCH=m
CONFIG_RC_CORE=y
CONFIG_BPF_LIRC_MODE2=y
CONFIG_LIRC=y
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