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arm64: dts: imx8mm: add imx8mm-venice-gw72xx-0x-rpidsi overlay for display

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Add support for the following Raspberry Pi displays:
 - DFROBOT DRF0678 7in 800x480 TFT DSI capacitive touch
 - DFROBOT DRF0550 5in 800x480 TFT DSI capacitive touch

Both have the following hardware:
 - FocalTech FT5406 10pt touch controller (with no interrupt)
 - Powertip PH800480T013-IDF02 compatible panel
 - Toshiba TC358762 compatible DSI to DBI bridge
 - ATTINY based regulator used for backlight controller and panel enable

Support is added via a device-tree overlay. The touch controller is not
yet supported as polling mode is needed.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Tim Harvey 2023-07-18 13:55:38 -07:00 • committed by Shawn Guo
parent b7df89f1c9
commit 6b4da1354f
2 changed files with 92 additions and 0 deletions
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2
arch/arm64/boot/dts/freescale/Makefile
View file

@ -143,6 +143,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8ulp-evk.dtb
dtb-$(CONFIG_ARCH_MXC) += imx93-11x11-evk.dtb
imx8mm-venice-gw72xx-0x-imx219-dtbs := imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-imx219.dtbo
imx8mm-venice-gw72xx-0x-rpidsi-dtbs := imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-rpidsi.dtbo
imx8mm-venice-gw72xx-0x-rs232-rts-dtbs := imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-rs232-rts.dtbo
imx8mm-venice-gw72xx-0x-rs422-dtbs := imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-rs422.dtbo
imx8mm-venice-gw72xx-0x-rs485-dtbs := imx8mm-venice-gw72xx-0x.dtb imx8mm-venice-gw72xx-0x-rs485.dtbo
@ -153,6 +154,7 @@ imx8mm-venice-gw73xx-0x-rs422-dtbs := imx8mm-venice-gw73xx-0x.dtb imx8mm-venice-
imx8mm-venice-gw73xx-0x-rs485-dtbs := imx8mm-venice-gw73xx-0x.dtb imx8mm-venice-gw73xx-0x-rs485.dtbo
dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw72xx-0x-imx219.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw72xx-0x-rpidsi.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw72xx-0x-rs232-rts.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw72xx-0x-rs422.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw72xx-0x-rs485.dtb

90
arch/arm64/boot/dts/freescale/imx8mm-venice-gw72xx-0x-rpidsi.dtso Normal file
View file

@ -0,0 +1,90 @@
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright 2023 Gateworks Corporation
*/
#include <dt-bindings/gpio/gpio.h>
#include "imx8mm-pinfunc.h"
/dts-v1/;
/plugin/;
&{/} {
compatible = "gw,imx8mm-gw73xx-0x", "fsl,imx8mm";
panel {
compatible = "powertip,ph800480t013-idf02";
power-supply = <&attiny>;
backlight = <&attiny>;
port {
panel_in: endpoint {
remote-endpoint = <&bridge_out>;
};
};
};
};
&i2c3 {
#address-cells = <1>;
#size-cells = <0>;
attiny: regulator@45 {
compatible = "raspberrypi,7inch-touchscreen-panel-regulator";
reg = <0x45>;
};
};
&lcdif {
status = "okay";
};
&mipi_dsi {
samsung,burst-clock-frequency = <891000000>;
samsung,esc-clock-frequency = <54000000>;
samsung,pll-clock-frequency = <27000000>;
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
bridge@0 {
compatible = "toshiba,tc358762";
reg = <0>;
vddc-supply = <&attiny>;
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>;
};
};
};
};
ports {
#address-cells = <1>;
#size-cells = <0>;
port@1 {
reg = <1>;
dsi_out: endpoint {
remote-endpoint = <&bridge_in>;
};
};
};
};