[PATCH v9 2/3] ARM: dts: Add support for i.MX6 UltraLite DART Variscite Customboard
Shawn Guo
shawnguo at kernel.org
Sun Mar 7 13:02:28 GMT 2021
On Sun, Feb 14, 2021 at 02:13:49PM +0100, Oliver Graute wrote:
> This patch adds DeviceTree Source for the i.MX6 UltraLite DART NAND/WIFI
>
> Signed-off-by: Oliver Graute <oliver.graute at gmail.com>
> Cc: Shawn Guo <shawnguo at kernel.org>
> Cc: Neil Armstrong <narmstrong at baylibre.com>
> Cc: Marco Felsch <m.felsch at pengutronix.de>
> Cc: Parthiban Nallathambi <parthitce at gmail.com>
> ---
> Changelog:
>
> v9:
> - removed display-timing node
> - added 5V power supply for display
> - added assigned clocks for display
>
> v8:
> - backlight droped the status line
> - port the display panel
> - added pinctrl for touch
>
> v7:
> - fixed wakeup-source
>
> v6:
> - added some muxing
> - added codec in sound node
> - added adc1 node
>
> arch/arm/boot/dts/Makefile | 1 +
> arch/arm/boot/dts/imx6ul-var-6ulcustomboard.dts | 255 ++++++++++++++++++++++++
> 2 files changed, 256 insertions(+)
> create mode 100644 arch/arm/boot/dts/imx6ul-var-6ulcustomboard.dts
>
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index ce66ffd..9f72446 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -626,6 +626,7 @@ dtb-$(CONFIG_SOC_IMX6UL) += \
> imx6ul-tx6ul-0010.dtb \
> imx6ul-tx6ul-0011.dtb \
> imx6ul-tx6ul-mainboard.dtb \
> + imx6ul-var-6ulcustomboard.dtb \
> imx6ull-14x14-evk.dtb \
> imx6ull-colibri-eval-v3.dtb \
> imx6ull-colibri-wifi-eval-v3.dtb \
> diff --git a/arch/arm/boot/dts/imx6ul-var-6ulcustomboard.dts b/arch/arm/boot/dts/imx6ul-var-6ulcustomboard.dts
> new file mode 100644
> index 00000000..bf18888
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx6ul-var-6ulcustomboard.dts
> @@ -0,0 +1,255 @@
> +// SPDX-License-Identifier: (GPL-2.0)
> +/*
> + * Support for Variscite DART-6UL Module
> + *
> + * Copyright (C) 2015 Freescale Semiconductor, Inc.
> + * Copyright (C) 2015-2016 Variscite Ltd. - http://www.variscite.com
> + * Copyright (C) 2018-2021 Oliver Graute <oliver.graute at gmail.com>
> + */
> +
> +/dts-v1/;
> +
> +#include <dt-bindings/input/input.h>
> +#include "imx6ul-imx6ull-var-dart-common.dtsi"
> +
> +/ {
> + model = "Variscite i.MX6 UltraLite Carrier-board";
> + compatible = "variscite,6ulcustomboard", "fsl,imx6ul";
> +
> + backlight_lcd: backlight {
> + compatible = "pwm-backlight";
> + pwms = <&pwm1 0 20000>;
> + brightness-levels = <0 4 8 16 32 64 128 255>;
> + default-brightness-level = <6>;
> + status = "okay";
We use 'okay' status to flip 'disabled' devices. It's not needed here.
> + };
> +
> + gpio-keys {
> + compatible = "gpio-keys";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_gpio_keys>;
> +
> + user {
> + gpios = <&gpio1 0 GPIO_ACTIVE_LOW>;
> + linux,code = <KEY_BACK>;
> + wakeup-source;
> + };
> + };
> +
> + gpio-leds {
> + compatible = "gpio-leds";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_gpio_leds>;
> +
> + d16-led {
> + gpios = <&gpio4 20 GPIO_ACTIVE_HIGH>;
> + linux,default-trigger = "heartbeat";
> + };
> + };
> +
> + panel1: panel-lcd {
> + compatible = "sgd,gktw70sdad1sd";
Unsupported/undocumented compatible?
> +
Unnecessary newline.
> + backlight = <&backlight_lcd>;
> + label = "gktw70sdad1sd";
What is 'label' for?
> +
> + port {
> + panel_in: endpoint {
> + remote-endpoint = <&lcdif_out>;
> + };
> + };
> + };
> +
> + sound {
> + compatible = "simple-audio-card";
> + simple-audio-card,name = "wm8731audio";
> + simple-audio-card,widgets =
> + "Headphone", "Headphone Jack",
> + "Line", "Line Jack",
> + "Microphone", "Mic Jack";
> + simple-audio-card,routing =
> + "Headphone Jack", "RHPOUT",
> + "Headphone Jack", "LHPOUT",
> + "LLINEIN", "Line Jack",
> + "RLINEIN", "Line Jack",
> + "MICIN", "Mic Bias",
> + "Mic Bias", "Mic Jack";
> + simple-audio-card,format = "i2s";
> + simple-audio-card,bitclock-master = <&codec_dai>;
> + simple-audio-card,frame-master = <&codec_dai>;
> +
> + codec_dai: simple-audio-card,codec {
> + sound-dai = <&wm8731>;
> + system-clock-frequency = <12288000>;
> + };
> + };
> +};
> +
> +&adc1 {
> + status = "okay";
> +};
> +
> +&can1 {
> + status = "okay";
> +};
> +
> +&can2 {
> + status = "okay";
> +};
> +
> +&fec1 {
> + status = "okay";
> +};
> +
> +&fec2 {
> + status = "okay";
> +};
> +
> +&i2c1 {
> + status = "okay";
> +};
> +
> +&i2c2 {
> + clock_frequency = <100000>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_i2c2>;
> + status = "okay";
> +
> + wm8731: audio-codec at 1a {
> + compatible = "wlf,wm8731";
> + reg = <0x1a>;
> + #sound-dai-cells = <0>;
> + clocks = <&clks IMX6UL_CLK_SAI2>;
> + clock-names = "mclk";
> + };
> +
> + touchscreen at 38 {
> + compatible = "edt,edt-ft5x06";
> + reg = <0x38>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_touch>;
> + interrupt-parent = <&gpio3>;
> + interrupts = <4 IRQ_TYPE_NONE>;
> + touchscreen-size-x = <800>;
> + touchscreen-size-y = <480>;
> + touchscreen-inverted-x;
> + touchscreen-inverted-y;
> + wakeup-source;
> + };
> +
> + rtc at 68 {
> + compatible = "dallas,ds1337";
> + reg = <0x68>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_rtc>;
> + interrupt-parent = <&gpio5>;
> + interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
> + };
> +};
> +
> +&lcdif {
> + assigned-clocks = <&clks IMX6UL_CLK_LCDIF_PRE_SEL>;
> + assigned-clock-parents = <&clks IMX6UL_CLK_PLL5_VIDEO_DIV>;
> + pinctrl-names = "default";
> + power-supply = <®_5v0>;
> + pinctrl-0 = <&pinctrl_lcdif>;
> + status = "okay";
> +
> + port {
> + lcdif_out: endpoint {
> + remote-endpoint = <&panel_in>;
> + };
> + };
> +};
> +
> +&pwm1 {
> + status = "okay";
> +};
> +
> +&uart1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_uart1>;
> + status = "okay";
> +};
> +
> +&uart2 {
> + status = "okay";
> +};
> +
> +&uart3 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_uart3>;
> + uart-has-rtscts;
> + status = "okay";
> +};
> +
> +&usbotg1 {
> + disable-over-current;
> + dr_mode = "host";
> + status = "okay";
> +};
> +
> +&usbotg2 {
> + disable-over-current;
> + dr_mode = "host";
> + status = "okay";
> +};
> +
> +&iomuxc {
> + pinctrl_gpio_keys: gpio_keysgrp {
gpiokeysgrp maybe? We do not recommend underscore in node name. Hyphen
is preferred.
Shawn
> + fsl,pins = <
> + MX6UL_PAD_GPIO1_IO00__GPIO1_IO00 0x17059
> + >;
> + };
> +
> + pinctrl_gpio_leds: gpioledsgrp {
> + fsl,pins = <
> + MX6UL_PAD_CSI_HSYNC__GPIO4_IO20 0x1b0b0
> + >;
> + };
> +
> + pinctrl_i2c2: i2c2grp {
> + fsl,pins = <
> + MX6UL_PAD_UART5_TX_DATA__I2C2_SCL 0x4001b8b0
> + MX6UL_PAD_UART5_RX_DATA__I2C2_SDA 0x4001b8b0
> + >;
> + };
> +
> + pinctrl_lcdif: lcdif {
> + fsl,pins = <
> + MX6UL_PAD_LCD_DATA02__LCDIF_DATA02 0x79
> + MX6UL_PAD_LCD_DATA03__LCDIF_DATA03 0x79
> + MX6UL_PAD_LCD_DATA04__LCDIF_DATA04 0x79
> + MX6UL_PAD_LCD_DATA05__LCDIF_DATA05 0x79
> + MX6UL_PAD_LCD_DATA06__LCDIF_DATA06 0x79
> + MX6UL_PAD_LCD_DATA07__LCDIF_DATA07 0x79
> + MX6UL_PAD_LCD_DATA10__LCDIF_DATA10 0x79
> + MX6UL_PAD_LCD_DATA11__LCDIF_DATA11 0x79
> + MX6UL_PAD_LCD_DATA12__LCDIF_DATA12 0x79
> + MX6UL_PAD_LCD_DATA13__LCDIF_DATA13 0x79
> + MX6UL_PAD_LCD_DATA14__LCDIF_DATA14 0x79
> + MX6UL_PAD_LCD_DATA15__LCDIF_DATA15 0x79
> + MX6UL_PAD_LCD_DATA18__LCDIF_DATA18 0x79
> + MX6UL_PAD_LCD_DATA19__LCDIF_DATA19 0x79
> + MX6UL_PAD_LCD_DATA20__LCDIF_DATA20 0x79
> + MX6UL_PAD_LCD_DATA21__LCDIF_DATA21 0x79
> + MX6UL_PAD_LCD_DATA22__LCDIF_DATA22 0x79
> + MX6UL_PAD_LCD_DATA23__LCDIF_DATA23 0x79
> + MX6UL_PAD_LCD_CLK__LCDIF_CLK 0x79
> + MX6UL_PAD_LCD_ENABLE__LCDIF_ENABLE 0x79
> + >;
> + };
> +
> + pinctrl_rtc: rtcgrp {
> + fsl,pins = <
> + MX6UL_PAD_SNVS_TAMPER7__GPIO5_IO07 0x1b0b0
> + >;
> + };
> +
> + pinctrl_touch: touchgrp {
> + fsl,pins = <
> + MX6UL_PAD_LCD_RESET__GPIO3_IO04 0x80000000
> + >;
> + };
> +
> +};
> --
> 2.7.4
>
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