[PATCH 2/3] arm64: dts: imx8mp pollux: add expansion board overlay
From: Yannic Moog <hidden>
Date: 2025-09-15 11:55:58
Also in:
imx, linux-devicetree, lkml
Subsystem:
arm/freescale imx / mxc arm architecture, the rest · Maintainers:
Frank Li, Sascha Hauer, Linus Torvalds
An expansion board (PEB-AV-10) may be connected to the imx8mp-phyboard-pollux. Its main purpose is to provide multimedia interfaces, featuring a 3.5mm headphone jack, a USB-A port and LVDS as well as backlight connectors. Signed-off-by: Yannic Moog <redacted> --- arch/arm64/boot/dts/freescale/Makefile | 3 + .../imx8mp-phyboard-pollux-peb-av-10.dtsi | 198 +++++++++++++++++++++ .../imx8mp-phyboard-pollux-peb-av-10.dtso | 9 + 3 files changed, 210 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 805ab9e5942bc9e2b9776e92412f56e969b6b39a..9c121041128972d2239e2cc74df98b0bf7de1ac2 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile@@ -220,10 +220,13 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-nitrogen-smarc-universal-board.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk.dtb imx8mp-phyboard-pollux-etml1010g3dra-dtbs += imx8mp-phyboard-pollux-rdk.dtb \ imx8mp-phyboard-pollux-etml1010g3dra.dtbo +imx8mp-phyboard-pollux-peb-av-10-dtbs += imx8mp-phyboard-pollux-rdk.dtb \ + imx8mp-phyboard-pollux-peb-av-10.dtbo imx8mp-phyboard-pollux-ph128800t006-dtbs += imx8mp-phyboard-pollux-rdk.dtb \ imx8mp-phyboard-pollux-ph128800t006.dtbo imx8mp-phyboard-pollux-rdk-no-eth-dtbs += imx8mp-phyboard-pollux-rdk.dtb imx8mp-phycore-no-eth.dtbo dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-etml1010g3dra.dtb +dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-peb-av-10.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-ph128800t006.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk-no-eth.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mp-skov-basic.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-peb-av-10.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-peb-av-10.dtsi
new file mode 100644
index 0000000000000000000000000000000000000000..d5dcb91b2a9c41bcfa3288923d8458cf593aa4b3
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-peb-av-10.dtsi@@ -0,0 +1,198 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2025 PHYTEC Messtechnik GmbH + */ + +#include <dt-bindings/clock/imx8mp-clock.h> +#include <dt-bindings/gpio/gpio.h> +#include "imx8mp-pinfunc.h" + +&{/} { + backlight_lvds0: backlight0 { + compatible = "pwm-backlight"; + pinctrl-0 = <&pinctrl_lvds0>; + pinctrl-names = "default"; + power-supply = <®_vcc_12v>; + status = "disabled"; + }; + + panel_lvds0: panel-lvds0 { + backlight = <&backlight_lvds0>; + power-supply = <®_vcc_3v3_sw>; + status = "disabled"; + + port { + panel0_in: endpoint { + remote-endpoint = <&ldb_lvds_ch0>; + }; + }; + }; + + reg_vcc_12v: regulator-12v { + compatible = "regulator-fixed"; + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <12000000>; + regulator-min-microvolt = <12000000>; + regulator-name = "VCC_12V"; + }; + + reg_vcc_1v8_audio: regulator-1v8 { + compatible = "regulator-fixed"; + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <1800000>; + regulator-min-microvolt = <1800000>; + regulator-name = "VCC_1V8_Audio"; + }; + + reg_vcc_3v3_analog: regulator-3v3 { + compatible = "regulator-fixed"; + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <3300000>; + regulator-min-microvolt = <3300000>; + regulator-name = "VCC_3V3_Analog"; + }; + + sound { + compatible = "simple-audio-card"; + simple-audio-card,name = "snd-peb-av-10"; + simple-audio-card,format = "i2s"; + simple-audio-card,bitclock-master = <&dailink_master>; + simple-audio-card,frame-master = <&dailink_master>; + simple-audio-card,mclk-fs = <32>; + simple-audio-card,widgets = + "Line", "Line In", + "Speaker", "Speaker", + "Microphone", "Microphone Jack", + "Headphone", "Headphone Jack"; + simple-audio-card,routing = + "Speaker", "SPOP", + "Speaker", "SPOM", + "Headphone Jack", "HPLOUT", + "Headphone Jack", "HPROUT", + "LINE1L", "Line In", + "LINE1R", "Line In", + "MIC3R", "Microphone Jack", + "Microphone Jack", "Mic Bias"; + + simple-audio-card,cpu { + sound-dai = <&sai2>; + }; + + dailink_master: simple-audio-card,codec { + sound-dai = <&codec>; + clocks = <&clk IMX8MP_CLK_SAI2>; + }; + }; +}; + +&i2c4 { + clock-frequency = <400000>; + pinctrl-0 = <&pinctrl_i2c4>; + pinctrl-1 = <&pinctrl_i2c4_gpio>; + pinctrl-names = "default", "gpio"; + scl-gpios = <&gpio5 20 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + sda-gpios = <&gpio5 21 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + codec: codec@18 { + compatible = "ti,tlv320aic3007"; + reg = <0x18>; + pinctrl-0 = <&pinctrl_tlv320>; + pinctrl-names = "default"; + #sound-dai-cells = <0>; + reset-gpios = <&gpio4 28 GPIO_ACTIVE_LOW>; + ai3x-gpio-func = <0xd 0x0>; + ai3x-micbias-vg = <2>; + AVDD-supply = <®_vcc_3v3_analog>; + DRVDD-supply = <®_vcc_3v3_analog>; + DVDD-supply = <®_vcc_1v8_audio>; + IOVDD-supply = <®_vcc_3v3_sw>; + }; + + eeprom@57 { + compatible = "atmel,24c32"; + reg = <0x57>; + pagesize = <32>; + vcc-supply = <®_vcc_3v3_sw>; + }; +}; + +&ldb_lvds_ch0 { + remote-endpoint = <&panel0_in>; +}; + +&pwm4 { + pinctrl-0 = <&pinctrl_pwm4>; + pinctrl-names = "default"; +}; + +&sai2 { + pinctrl-0 = <&pinctrl_sai2>; + pinctrl-names = "default"; + assigned-clocks = <&clk IMX8MP_CLK_SAI2>; + assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL1_OUT>; + assigned-clock-rates = <12288000>; + clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SAI2_IPG>, + <&clk IMX8MP_CLK_DUMMY>, + <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SAI2_MCLK1>, + <&clk IMX8MP_CLK_DUMMY>, + <&clk IMX8MP_CLK_DUMMY>, + <&clk IMX8MP_AUDIO_PLL1_OUT>, + <&clk IMX8MP_AUDIO_PLL2_OUT>; + clock-names = "bus", "mclk0", "mclk1", "mclk2", "mclk3", "pll8k", + "pll11k"; + #sound-dai-cells = <0>; + fsl,sai-mclk-direction-output; + fsl,sai-synchronous-rx; + status = "okay"; +}; + +&iomuxc { + pinctrl_i2c4: i2c4grp { + fsl,pins = < + MX8MP_IOMUXC_I2C4_SCL__I2C4_SCL 0x400001c2 + MX8MP_IOMUXC_I2C4_SDA__I2C4_SDA 0x400001c2 + >; + }; + + pinctrl_i2c4_gpio: i2c4gpiogrp { + fsl,pins = < + MX8MP_IOMUXC_I2C4_SCL__GPIO5_IO20 0x1e2 + MX8MP_IOMUXC_I2C4_SDA__GPIO5_IO21 0x1e2 + >; + }; + + pinctrl_lvds0: lvds0grp { + fsl,pins = < + MX8MP_IOMUXC_SAI3_TXD__GPIO5_IO01 0x12 + >; + }; + + pinctrl_pwm4: pwm4grp { + fsl,pins = < + MX8MP_IOMUXC_SAI3_MCLK__PWM4_OUT 0x12 + >; + }; + + pinctrl_sai2: sai2grp { + fsl,pins = < + MX8MP_IOMUXC_SAI2_MCLK__AUDIOMIX_SAI2_MCLK 0xd6 + MX8MP_IOMUXC_SAI2_RXFS__AUDIOMIX_SAI2_RX_SYNC 0xd6 + MX8MP_IOMUXC_SAI2_TXC__AUDIOMIX_SAI2_TX_BCLK 0xd6 + MX8MP_IOMUXC_SAI2_TXD0__AUDIOMIX_SAI2_TX_DATA00 0xd6 + MX8MP_IOMUXC_SAI2_RXD0__AUDIOMIX_SAI2_RX_DATA00 0xd6 + >; + }; + + pinctrl_tlv320: tlv320grp { + fsl,pins = < + MX8MP_IOMUXC_SAI3_RXFS__GPIO4_IO28 0x16 + MX8MP_IOMUXC_SAI2_RXC__GPIO4_IO22 0x16 + >; + }; +};
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-peb-av-10.dtso b/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-peb-av-10.dtso
new file mode 100644
index 0000000000000000000000000000000000000000..27289b68dc46676d870535511f06b805df59dfa1
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-peb-av-10.dtso@@ -0,0 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2025 PHYTEC Messtechnik GmbH + */ + +/dts-v1/; +/plugin/; + +#include "imx8mp-phyboard-pollux-peb-av-10.dtsi"
--
2.43.0