From 381b8bec47de1d343356afa8d6d7eb7c4a873699 Mon Sep 17 00:00:00 2001 From: Oleksandr Suvorov Date: Wed, 31 Mar 2021 18:10:32 +0300 Subject: overlays: colibri-imx7: LCD-LVDS transceiver Add the overlay to support the LCD-LVDS transceiver on Iris v2.0A in single-channel RGB24 mode. Related-to: ELB-3898 Signed-off-by: Oleksandr Suvorov --- overlays/Makefile | 3 +- ...imx7_parallel-rgb-lvds-rgb24-single_overlay.dts | 83 ++++++++++++++++++++++ 2 files changed, 85 insertions(+), 1 deletion(-) create mode 100644 overlays/colibri-imx7_parallel-rgb-lvds-rgb24-single_overlay.dts diff --git a/overlays/Makefile b/overlays/Makefile index 79e7d95..1dc26f1 100644 --- a/overlays/Makefile +++ b/overlays/Makefile @@ -35,9 +35,10 @@ dtb-y += colibri-imx6_parallel-rgb_overlay.dtbo dtb-y += colibri-imx6_parallel-rgb-lvds_overlay.dtbo dtb-y += colibri-imx6_stmpe-ts_overlay.dtbo dtb-y += colibri-imx7_ad7879_overlay.dtbo -dtb-y += colibri-imx7_parallel-rgb_overlay.dtbo dtb-y += colibri-imx7_atmel-mxt-adapter_overlay.dtbo dtb-y += colibri-imx7_atmel-mxt-connector_overlay.dtbo +dtb-y += colibri-imx7_parallel-rgb-lvds-rgb24-single_overlay.dtbo +dtb-y += colibri-imx7_parallel-rgb_overlay.dtbo dtb-y += display-dpi-lt170410_overlay.dtbo dtb-y += display-edt5.7_overlay.dtbo dtb-y += display-edt7_overlay.dtbo diff --git a/overlays/colibri-imx7_parallel-rgb-lvds-rgb24-single_overlay.dts b/overlays/colibri-imx7_parallel-rgb-lvds-rgb24-single_overlay.dts new file mode 100644 index 0000000..e5d407e --- /dev/null +++ b/overlays/colibri-imx7_parallel-rgb-lvds-rgb24-single_overlay.dts @@ -0,0 +1,83 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT +/* + * Copyright 2020-2021 Toradex + */ + +// Enable the parallel RGB interface on the Colibri iMX7 + +#include + +/dts-v1/; +/plugin/; + +/ { + compatible = "toradex,colibri-imx7d", + "toradex,colibri-imx7d-emmc", + "toradex,colibri-imx7s"; +}; + +&backlight { + status = "okay"; +}; + +/* Need to be disabled due to overlapped pins SODIMM_55, SODIMM_63 */ +&flexcan1 { + status = "disabled"; +}; + +&gpio2 { + /* + * This switches the LVDS transceiver to VESA color mapping mode. + */ + LVDS_COLOR_MAP { + gpio-hog; + gpios = <13 GPIO_ACTIVE_HIGH>; /* SODIMM 95 */ + line-name = "LVDS_COLOR_MAP"; + output-low; + }; +}; + +&gpio7 { + /* + * This switches the LVDS transceiver to the 24-bit RGB mode. + */ + LVDS_RGB_MODE { + gpio-hog; + gpios = <2 GPIO_ACTIVE_HIGH>; /* SODIMM 63 */ + line-name = "LVDS_RGB_MODE"; + output-low; + }; + + /* + * This switches the LVDS transceiver to the single-channel + * output mode. + */ + LVDS_CH_MODE { + gpio-hog; + gpios = <3 GPIO_ACTIVE_HIGH>; /* SODIMM 55 */ + line-name = "LVDS_CH_MODE"; + output-high; + }; + + /* This turns on the LVDS transceiver */ + LVDS_POWER_ON { + gpio-hog; + gpios = <11 GPIO_ACTIVE_HIGH>; /* SODIMM 99 */ + line-name = "LVDS_POWER_ON"; + output-high; + }; +}; + +&lcdif { + status = "okay"; +}; + +&panel_dpi { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_lvds_transceiver>; + status = "okay"; +}; + +&pwm1 { + status = "okay"; +}; -- cgit v1.2.3