2021-10-25 16:32:50

by thanushree.sreerama

[permalink] [raw]
Subject: [PATCH v2] arm64: dts: imx8mm: Add support for emtrion emCON-MX8M Mini

From: Thanushree Sreerama <[email protected]>

This patch adds support for the emtrion GmbH emCON-MX8M Mini modules.
They are available with NXP i.MX 8M Mini equipped with 2 or 4 GB Memory.

The devicetree imx8mm-emcon.dtsi is the common part providing all
module components and the basic support for the SoC. The support for the
avari baseboard in the developer-kit configuration is provided by the
emcon-avari dts files.

Signed-off-by: Thanushree Sreerama <[email protected]>
Reviewed by: Frank Erdrich <[email protected]>
---
.../devicetree/bindings/arm/fsl.yaml | 1 +
arch/arm64/boot/dts/freescale/Makefile | 3 +-
.../boot/dts/freescale/imx8mm-emcon-avari.dts | 23 +
.../dts/freescale/imx8mm-emcon-avari.dtsi | 141 ++++
.../boot/dts/freescale/imx8mm-emcon.dtsi | 645 ++++++++++++++++++
5 files changed, 812 insertions(+), 1 deletion(-)
create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-emcon-avari.dts
create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-emcon-avari.dtsi
create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-emcon.dtsi

diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index e3c50f231d71..b23f02e13f74 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -680,6 +680,7 @@ properties:
- enum:
- beacon,imx8mm-beacon-kit # i.MX8MM Beacon Development Kit
- boundary,imx8mm-nitrogen8mm # i.MX8MM Nitrogen Board
+ - emtrion,emcon-mx8mm-avari # emCON-MX8MM SoM on Avari Base
- fsl,imx8mm-ddr4-evk # i.MX8MM DDR4 EVK Board
- fsl,imx8mm-evk # i.MX8MM EVK Board
- gw,imx8mm-gw71xx-0x # i.MX8MM Gateworks Development Kit
diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 44890d56c194..0ad51dffe3fb 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -31,8 +31,9 @@ dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-lx2160a-rdb.dtb
dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-lx2162a-qds.dtb

dtb-$(CONFIG_ARCH_MXC) += imx8mm-beacon-kit.dtb
-dtb-$(CONFIG_ARCH_MXC) += imx8mm-evk.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-ddr4-evk.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mm-emcon-avari.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mm-evk.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-icore-mx8mm-ctouch2.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-icore-mx8mm-edimm2.2.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-kontron-n801x-s.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-emcon-avari.dts b/arch/arm64/boot/dts/freescale/imx8mm-emcon-avari.dts
new file mode 100644
index 000000000000..b2e8967e9687
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-emcon-avari.dts
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: (GPL-2.0 or MIT)
+//
+// Copyright (c) 2021 emtrion GmbH
+// Author: Frank Erdrich <[email protected]>
+//
+
+/dts-v1/;
+
+#include "imx8mm-emcon.dtsi"
+#include "imx8mm-emcon-avari.dtsi"
+
+/ {
+ model = "emtrion SoM emCON-MX8M mini on Avari";
+ compatible = "emtrion,emcon-mx8mm-avari", "fsl,imx8mm";
+};
+
+&lvds_backlight {
+ status = "okay";
+};
+
+&pwm1 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-emcon-avari.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-emcon-avari.dtsi
new file mode 100644
index 000000000000..89fbf4b46f1b
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-emcon-avari.dtsi
@@ -0,0 +1,141 @@
+// SPDX-License-Identifier: (GPL-2.0 or MIT)
+//
+// Copyright (C) 2021 emtrion GmbH
+// Author: Frank Erdrich <[email protected]>
+//
+
+/ {
+ aliases {
+ boardid = &boardID;
+ mmc0 = &usdhc1;
+ mmc1 = &usdhc2;
+ };
+
+ chosen {
+ stdout-path = &uart1;
+ };
+
+ reg_wall_5p0: reg-wall5p0 {
+ compatible = "regulator-fixed";
+ regulator-name = "Main-Supply";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ reg_base3p3: reg-base3p3 {
+ compatible = "regulator-fixed";
+ vin-supply = <&reg_wall_5p0>;
+ regulator-name = "3V3-avari";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ reg_base1p5: reg-base1p5 {
+ compatible = "regulator-fixed";
+ vin-supply = <&reg_base3p3>;
+ regulator-name = "1V5-avari";
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ reg_usb_otg: reg-otgvbus {
+ compatible = "regulator-fixed";
+ vin-supply = <&reg_wall_5p0>;
+ regulator-name = "OTG_VBUS";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&gpio1 8 GPIO_ACTIVE_LOW>;
+ regulator-always-on;
+ };
+
+ clk_codec: clock-codec {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <12000000>;
+ };
+
+ sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "SGTL5000-Card";
+ simple-audio-card,format = "i2s";
+ simple-audio-card,bitclock-master = <&codec_dai>;
+ simple-audio-card,frame-master = <&codec_dai>;
+ simple-audio-card,widgets = "Headphone", "Headphone Jack";
+ simple-audio-card,routing = "Headphone Jack", "HP_OUT";
+
+ cpu_dai: simple-audio-card,cpu {
+ sound-dai = <&sai2>;
+ };
+
+ codec_dai: simple-audio-card,codec {
+ sound-dai = <&sgtl5000>;
+ };
+ };
+};
+
+&ecspi1 {
+ status = "okay";
+};
+
+&i2c2 {
+ status = "okay";
+};
+
+&i2c1 {
+ clock-frequency = <100000>;
+ status = "okay";
+
+ sgtl5000: audio-codec@a {
+ compatible = "fsl,sgtl5000";
+ reg = <0x0a>;
+ #sound-dai-cells = <0>;
+ clocks = <&clk_codec>;
+ VDDA-supply = <&reg_base3p3>;
+ VDDIO-supply = <&reg_base3p3>;
+ };
+
+ boardID: gpio@3a {
+ compatible = "nxp,pca8574";
+ reg = <0x3a>;
+ gpio-controller;
+ #gpio-cells = <1>;
+ };
+};
+
+&sai2 {
+ status = "okay";
+};
+
+&uart2 {
+ status = "okay";
+ uart-has-rtscts;
+};
+
+&uart3 {
+ status = "okay";
+};
+
+&uart4 {
+ status = "okay";
+};
+
+&usbotg1 {
+ status = "okay";
+};
+
+&usbotg2 {
+ dr_mode = "host";
+ status = "disabled";
+};
+
+&usdhc2 {
+ status = "okay";
+};
+
+
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-emcon.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-emcon.dtsi
new file mode 100644
index 000000000000..0315a684329f
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-emcon.dtsi
@@ -0,0 +1,645 @@
+// SPDX-License-Identifier: (GPL-2.0 or MIT)
+//
+// Copyright 2018 NXP
+// Copyright (C) 2021 emtrion GmbH
+//
+
+/dts-v1/;
+
+#include "imx8mm.dtsi"
+
+/ {
+ chosen {
+ stdout-path = &uart1;
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ rpmsg_reserved: rpmsg@b8000000 {
+ no-map;
+ reg = <0 0xb8000000 0 0x400000>;
+ };
+
+ loader_reserved: loader@bb700000 {
+ no-map;
+ reg = <0 0xbb700000 0x0 0x00100000>;
+ };
+
+ pci_reserved: pci@bb800000 {
+ no-map;
+ reg = <0 0xbb800000 0x0 0x00200000>;
+ };
+
+ ivshmem2_reserved: ivshmem2@bba00000 {
+ no-map;
+ reg = <0 0xbba00000 0x0 0x00100000>;
+ };
+
+ ivshmem_reserved: ivshmem@bbb00000 {
+ no-map;
+ reg = <0 0xbbb00000 0x0 0x00100000>;
+ };
+ };
+
+ som_leds: leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpio_led>;
+
+ green {
+ label = "som:green";
+ gpios = <&gpio3 4 GPIO_ACTIVE_HIGH>;
+ default-state = "on";
+ linux,default-trigger = "heartbeat";
+ };
+
+ red {
+ label = "som:red";
+ gpios = <&gpio5 10 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+ };
+
+ lvds_backlight: lvds-backlight {
+ compatible = "pwm-backlight";
+ enable-gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
+ pwms = <&pwm1 0 50000 0>;
+ brightness-levels = <
+ 0 4 8 16 32 64 80 96 112
+ 128 144 160 176 250
+ >;
+ default-brightness-level = <9>;
+ status = "disabled";
+ };
+
+ reg_usdhc1_vmmc: regulator-emmc {
+ compatible = "regulator-fixed";
+ regulator-name = "eMMC";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ reg_usdhc2_vmmc: regulator-usdhc2 {
+ compatible = "regulator-fixed";
+ regulator-name = "sdcard_3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+};
+
+&A53_0 {
+ cpu-supply = <&buck2_reg>;
+};
+
+&ecspi1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ecspi1 &pinctrl_ecspi1_cs>;
+ cs-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+&flexspi {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flexspi0>;
+ pinctrl-1 = <&pinctrl_flexspi1>;
+ status = "okay";
+
+ flash0: spi-flash@0 {
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "spi-flash";
+ spi-max-frequency = <40000000>;
+ };
+};
+
+&iomuxc {
+ pinctrl-names = "default";
+
+ pinctrl_csi_pwn: csi_pwn_grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_GPIO1_IO07_GPIO1_IO7 0x19
+ >;
+ };
+
+ pinctrl_ecspi1: ecspi1grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_ECSPI1_SCLK_ECSPI1_SCLK 0x82
+ MX8MM_IOMUXC_ECSPI1_MOSI_ECSPI1_MOSI 0x82
+ MX8MM_IOMUXC_ECSPI1_MISO_ECSPI1_MISO 0x82
+ >;
+ };
+
+ pinctrl_ecspi1_cs: ecspi1cs {
+ fsl,pins = <
+ MX8MM_IOMUXC_ECSPI1_SS0_GPIO5_IO9 0x40000
+ MX8MM_IOMUXC_ECSPI2_SS0_GPIO5_IO13 0x40000
+ >;
+ };
+
+ pinctrl_fec1: fec1grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_ENET_MDC_ENET1_MDC 0x3
+ MX8MM_IOMUXC_ENET_MDIO_ENET1_MDIO 0x3
+ MX8MM_IOMUXC_ENET_TD3_ENET1_RGMII_TD3 0x1f
+ MX8MM_IOMUXC_ENET_TD2_ENET1_RGMII_TD2 0x1f
+ MX8MM_IOMUXC_ENET_TD1_ENET1_RGMII_TD1 0x1f
+ MX8MM_IOMUXC_ENET_TD0_ENET1_RGMII_TD0 0x1f
+ MX8MM_IOMUXC_ENET_RD3_ENET1_RGMII_RD3 0x91
+ MX8MM_IOMUXC_ENET_RD2_ENET1_RGMII_RD2 0x91
+ MX8MM_IOMUXC_ENET_RD1_ENET1_RGMII_RD1 0x91
+ MX8MM_IOMUXC_ENET_RD0_ENET1_RGMII_RD0 0x91
+ MX8MM_IOMUXC_ENET_TXC_ENET1_RGMII_TXC 0x1f
+ MX8MM_IOMUXC_ENET_RXC_ENET1_RGMII_RXC 0x91
+ MX8MM_IOMUXC_ENET_RX_CTL_ENET1_RGMII_RX_CTL 0x91
+ MX8MM_IOMUXC_ENET_TX_CTL_ENET1_RGMII_TX_CTL 0x1f
+ MX8MM_IOMUXC_GPIO1_IO09_GPIO1_IO9 0x19
+ >;
+ };
+
+ pinctrl_flexspi0: flexspi0grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_NAND_ALE_QSPI_A_SCLK 0x1c2
+ MX8MM_IOMUXC_NAND_CE0_B_QSPI_A_SS0_B 0x82
+ MX8MM_IOMUXC_NAND_DATA00_QSPI_A_DATA0 0x82
+ MX8MM_IOMUXC_NAND_DATA01_QSPI_A_DATA1 0x82
+ MX8MM_IOMUXC_NAND_DATA02_QSPI_A_DATA2 0x82
+ MX8MM_IOMUXC_NAND_DATA03_QSPI_A_DATA3 0x82
+ MX8MM_IOMUXC_NAND_DQS_QSPI_A_DQS 0x82
+ >;
+ };
+
+ pinctrl_flexspi1: flexspi1grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_NAND_CLE_QSPI_B_SCLK 0x1c2
+ MX8MM_IOMUXC_NAND_CE2_B_QSPI_B_SS0_B 0x82
+ MX8MM_IOMUXC_NAND_DATA04_QSPI_B_DATA0 0x82
+ MX8MM_IOMUXC_NAND_DATA05_QSPI_B_DATA1 0x82
+ MX8MM_IOMUXC_NAND_DATA06_QSPI_B_DATA2 0x82
+ MX8MM_IOMUXC_NAND_DATA07_QSPI_B_DATA3 0x82
+ >;
+ };
+
+ pinctrl_gpio_led: gpioledgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_ECSPI2_SCLK_GPIO5_IO10 0x19
+ MX8MM_IOMUXC_NAND_CE3_B_GPIO3_IO4 0x19
+ >;
+ };
+
+ pinctrl_i2c1: i2c1grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_I2C1_SCL_I2C1_SCL 0x400001c3
+ MX8MM_IOMUXC_I2C1_SDA_I2C1_SDA 0x400001c3
+ >;
+ };
+
+ pinctrl_i2c2: i2c2grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_I2C2_SCL_I2C2_SCL 0x400001c3
+ MX8MM_IOMUXC_I2C2_SDA_I2C2_SDA 0x400001c3
+ >;
+ };
+
+ pinctrl_i2c3: i2c3grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_I2C3_SCL_I2C3_SCL 0x400001c3
+ MX8MM_IOMUXC_I2C3_SDA_I2C3_SDA 0x400001c3
+ >;
+ };
+
+ pinctrl_lvds: lvdsgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SAI5_MCLK_GPIO3_IO25 0x06
+ >;
+ };
+
+ pinctrl_pcie0: pcie0grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SAI5_RXC_GPIO3_IO20 0x41
+ MX8MM_IOMUXC_SAI5_RXFS_GPIO3_IO19 0x41
+ >;
+ };
+
+ pinctrl_pmic: pmicirq {
+ fsl,pins = <
+ MX8MM_IOMUXC_NAND_CE1_B_GPIO3_IO2 0x41
+ >;
+ };
+
+ pinctrl_pwm1: pwm1grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_GPIO1_IO01_PWM1_OUT 0x06
+ >;
+ };
+
+ pinctrl_sai2: sai2grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SAI2_MCLK_SAI2_MCLK 0xd6
+ MX8MM_IOMUXC_SAI2_RXC_SAI2_RX_BCLK 0xd6
+ MX8MM_IOMUXC_SAI2_RXD0_SAI2_RX_DATA0 0xd6
+ MX8MM_IOMUXC_SAI2_RXFS_SAI2_RX_SYNC 0xd6
+ MX8MM_IOMUXC_SAI2_TXC_SAI2_TX_BCLK 0xd6
+ MX8MM_IOMUXC_SAI2_TXD0_SAI2_TX_DATA0 0xd6
+ MX8MM_IOMUXC_SAI2_TXFS_SAI2_TX_SYNC 0xd6
+ >;
+ };
+
+ pinctrl_spdif1: spdif1grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SPDIF_TX_SPDIF1_OUT 0xd6
+ MX8MM_IOMUXC_SPDIF_RX_SPDIF1_IN 0xd6
+ >;
+ };
+
+ pinctrl_uart1: uart1grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_UART1_RXD_UART1_DCE_RX 0x140
+ MX8MM_IOMUXC_UART1_TXD_UART1_DCE_TX 0x140
+ >;
+ };
+
+ pinctrl_uart2: uart2grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_UART2_RXD_UART2_DCE_RX 0x140
+ MX8MM_IOMUXC_UART2_TXD_UART2_DCE_TX 0x140
+
+ /* rts and cts */
+ MX8MM_IOMUXC_SAI3_RXC_UART2_DCE_CTS_B 0x140
+ MX8MM_IOMUXC_SAI3_RXD_UART2_DCE_RTS_B 0x140
+ >;
+ };
+
+ pinctrl_uart3: uart3grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_UART3_RXD_UART3_DCE_RX 0x140
+ MX8MM_IOMUXC_UART3_TXD_UART3_DCE_TX 0x140
+ >;
+ };
+
+ pinctrl_uart4: uart4grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_UART4_RXD_UART4_DCE_RX 0x140
+ MX8MM_IOMUXC_UART4_TXD_UART4_DCE_TX 0x140
+ >;
+ };
+
+ pinctrl_usdhc1_gpio: usdhc1grpgpio {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD1_RESET_B_USDHC1_RESET_B 0x41
+ MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3 0x1c4
+ >;
+ };
+
+ pinctrl_usdhc1: usdhc1grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK 0x190
+ MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD 0x1d0
+ MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0 0x1d0
+ MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1 0x1d0
+ MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2 0x1d0
+ MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3 0x1d0
+ MX8MM_IOMUXC_SD1_DATA4_USDHC1_DATA4 0x1d0
+ MX8MM_IOMUXC_SD1_DATA5_USDHC1_DATA5 0x1d0
+ MX8MM_IOMUXC_SD1_DATA6_USDHC1_DATA6 0x1d0
+ MX8MM_IOMUXC_SD1_DATA7_USDHC1_DATA7 0x1d0
+ >;
+ };
+
+ pinctrl_usdhc1_100mhz: usdhc1grp100mhz {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK 0x194
+ MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD 0x1d4
+ MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0 0x1d4
+ MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1 0x1d4
+ MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2 0x1d4
+ MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3 0x1d4
+ MX8MM_IOMUXC_SD1_DATA4_USDHC1_DATA4 0x1d4
+ MX8MM_IOMUXC_SD1_DATA5_USDHC1_DATA5 0x1d4
+ MX8MM_IOMUXC_SD1_DATA6_USDHC1_DATA6 0x1d4
+ MX8MM_IOMUXC_SD1_DATA7_USDHC1_DATA7 0x1d4
+ >;
+ };
+
+ pinctrl_usdhc1_200mhz: usdhc1grp200mhz {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK 0x196
+ MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD 0x1d6
+ MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0 0x1d6
+ MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1 0x1d6
+ MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2 0x1d6
+ MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3 0x1d6
+ MX8MM_IOMUXC_SD1_DATA4_USDHC1_DATA4 0x1d6
+ MX8MM_IOMUXC_SD1_DATA5_USDHC1_DATA5 0x1d6
+ MX8MM_IOMUXC_SD1_DATA6_USDHC1_DATA6 0x1d6
+ MX8MM_IOMUXC_SD1_DATA7_USDHC1_DATA7 0x1d6
+ >;
+ };
+
+ /* no reset for sdhc2 interface */
+ pinctrl_usdhc2_gpio: usdhc2grpgpio {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12 0x1c4
+ MX8MM_IOMUXC_SD2_WP_USDHC2_WP 0x1c4
+ >;
+ };
+
+ pinctrl_usdhc2: usdhc2grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x190
+ MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d0
+ MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d0
+ MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d0
+ MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d0
+ MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d0
+ MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0
+ >;
+ };
+
+ pinctrl_usdhc2_100mhz: usdhc2grp100mhz {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x194
+ MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d4
+ MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d4
+ MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d4
+ MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d4
+ MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d4
+ MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0
+ >;
+ };
+
+ pinctrl_usdhc2_200mhz: usdhc2grp200mhz {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x196
+ MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d6
+ MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d6
+ MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d6
+ MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d6
+ MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d6
+ MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0
+ >;
+ };
+
+ pinctrl_wdog: wdoggrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0xc6
+ >;
+ };
+};
+
+&i2c1 {
+ clock-frequency = <400000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c1>;
+ status = "okay";
+};
+
+&i2c2 {
+ clock-frequency = <400000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c2>;
+ status = "okay";
+};
+
+&i2c3 {
+ clock-frequency = <400000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c3>;
+ status = "okay";
+
+ bd71847:pmic@4b {
+ compatible = "rohm,bd71847";
+ reg = <0x4b>;
+ pinctrl-0 = <&pinctrl_pmic>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <2 GPIO_ACTIVE_LOW>;
+ rohm,reset-snvs-powered;
+
+ regulators {
+ buck1_reg: BUCK1 {
+ regulator-name = "BUCK1";
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-ramp-delay = <1250>;
+ };
+
+ buck2_reg: BUCK2 {
+ regulator-name = "BUCK2";
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-ramp-delay = <1250>;
+ rohm,dvs-run-voltage = <1000000>;
+ rohm,dvs-idle-voltage = <900000>;
+ };
+
+ buck3_reg: BUCK3 {
+ // BUCK5 in datasheet
+ regulator-name = "BUCK3";
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1350000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ buck4_reg: BUCK4 {
+ // BUCK6 in datasheet
+ regulator-name = "BUCK4";
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ buck5_reg: BUCK5 {
+ // BUCK7 in datasheet
+ regulator-name = "BUCK5";
+ regulator-min-microvolt = <1605000>;
+ regulator-max-microvolt = <1995000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ buck6_reg: BUCK6 {
+ // BUCK8 in datasheet
+ regulator-name = "BUCK6";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo1_reg: LDO1 {
+ regulator-name = "LDO1";
+ regulator-min-microvolt = <1600000>;
+ regulator-max-microvolt = <1900000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo2_reg: LDO2 {
+ regulator-name = "LDO2";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <900000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo3_reg: LDO3 {
+ regulator-name = "LDO3";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo4_reg: LDO4 {
+ regulator-name = "LDO4";
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo6_reg: LDO6 {
+ regulator-name = "LDO6";
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+ };
+ };
+
+ rv1805:rtc@69 {
+ reg = <0x69>;
+ compatible = "abracon,ab1805";
+ };
+};
+
+&mu {
+ status = "okay";
+};
+
+&pwm1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwm1>;
+};
+
+&sai2 {
+ #sound-dai-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sai2>;
+ assigned-clocks = <&clk IMX8MM_CLK_SAI2>;
+ assigned-clock-parents = <&clk IMX8MM_AUDIO_PLL1_OUT>;
+ assigned-clock-rates = <12000000>;
+ status = "disabled";
+};
+
+&spdif1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_spdif1>;
+ assigned-clocks = <&clk IMX8MM_CLK_SPDIF1>;
+ assigned-clock-parents = <&clk IMX8MM_AUDIO_PLL1_OUT>;
+ assigned-clock-rates = <24576000>;
+ clocks = <&clk IMX8MM_CLK_AUDIO_AHB>, <&clk IMX8MM_CLK_24M>,
+ <&clk IMX8MM_CLK_SPDIF1>, <&clk IMX8MM_CLK_DUMMY>,
+ <&clk IMX8MM_CLK_DUMMY>, <&clk IMX8MM_CLK_DUMMY>,
+ <&clk IMX8MM_CLK_AUDIO_AHB>, <&clk IMX8MM_CLK_DUMMY>,
+ <&clk IMX8MM_CLK_DUMMY>, <&clk IMX8MM_CLK_DUMMY>,
+ <&clk IMX8MM_AUDIO_PLL1_OUT>, <&clk IMX8MM_AUDIO_PLL2_OUT>;
+ clock-names = "core", "rxtx0", "rxtx1", "rxtx2", "rxtx3",
+ "rxtx4", "rxtx5", "rxtx6", "rxtx7", "spba", "pll8k", "pll11k";
+ status = "disabled";
+};
+
+&fec1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_fec1>;
+ phy-mode = "rgmii-id";
+ phy-reset-gpios = <&gpio1 9 0>;
+ fsl,magic-packet;
+ status = "okay";
+};
+
+&uart1 { /* console */
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1>;
+ assigned-clocks = <&clk IMX8MM_CLK_UART1>;
+ assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_80M>;
+ status = "okay";
+};
+
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart2>;
+ assigned-clocks = <&clk IMX8MM_CLK_UART2>;
+ assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_80M>;
+ status = "okay";
+};
+
+&uart3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart3>;
+ assigned-clocks = <&clk IMX8MM_CLK_UART3>;
+ assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_80M>;
+ status = "okay";
+};
+
+&uart4 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart4>;
+ assigned-clocks = <&clk IMX8MM_CLK_UART4>;
+ assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_80M>;
+ status = "okay";
+};
+
+&usbotg1 {
+ dr_mode = "otg";
+ over-current-active-low;
+ status = "okay";
+};
+
+&usbotg2 {
+ dr_mode = "host";
+ disable-over-current;
+ status = "disabled";
+};
+
+&usdhc1 {
+ pinctrl-names = "default", "state_100mhz", "state_200mhz";
+ pinctrl-0 = <&pinctrl_usdhc1>, <&pinctrl_usdhc1_gpio>;
+ pinctrl-1 = <&pinctrl_usdhc1_100mhz>, <&pinctrl_usdhc1_gpio>;
+ pinctrl-2 = <&pinctrl_usdhc1_200mhz>, <&pinctrl_usdhc1_gpio>;
+ bus-width = <8>;
+ vmmc-supply = <&reg_usdhc1_vmmc>;
+ keep-power-in-suspend;
+ non-removable;
+ status = "okay";
+};
+
+&usdhc2 {
+ pinctrl-names = "default", "state_100mhz", "state_200mhz";
+ pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
+ pinctrl-1 = <&pinctrl_usdhc2_100mhz>, <&pinctrl_usdhc2_gpio>;
+ pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>;
+ cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
+ wp-gpios = <&gpio2 20 GPIO_ACTIVE_HIGH>;
+ bus-width = <4>;
+ vmmc-supply = <&reg_usdhc2_vmmc>;
+ no-1-8-v;
+ status = "okay";
+};
+
+&wdog1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_wdog>;
+ fsl,ext-reset-output;
+ status = "okay";
+};
--
2.20.1


2021-10-25 19:19:43

by Rob Herring (Arm)

[permalink] [raw]
Subject: Re: [PATCH v2] arm64: dts: imx8mm: Add support for emtrion emCON-MX8M Mini

On Mon, 25 Oct 2021 18:15:09 +0200, [email protected] wrote:
> From: Thanushree Sreerama <[email protected]>
>
> This patch adds support for the emtrion GmbH emCON-MX8M Mini modules.
> They are available with NXP i.MX 8M Mini equipped with 2 or 4 GB Memory.
>
> The devicetree imx8mm-emcon.dtsi is the common part providing all
> module components and the basic support for the SoC. The support for the
> avari baseboard in the developer-kit configuration is provided by the
> emcon-avari dts files.
>
> Signed-off-by: Thanushree Sreerama <[email protected]>
> Reviewed by: Frank Erdrich <[email protected]>
> ---
> .../devicetree/bindings/arm/fsl.yaml | 1 +
> arch/arm64/boot/dts/freescale/Makefile | 3 +-
> .../boot/dts/freescale/imx8mm-emcon-avari.dts | 23 +
> .../dts/freescale/imx8mm-emcon-avari.dtsi | 141 ++++
> .../boot/dts/freescale/imx8mm-emcon.dtsi | 645 ++++++++++++++++++
> 5 files changed, 812 insertions(+), 1 deletion(-)
> create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-emcon-avari.dts
> create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-emcon-avari.dtsi
> create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-emcon.dtsi
>

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:
./Documentation/devicetree/bindings/arm/fsl.yaml:714:1: [error] syntax error: found character '\t' that cannot start any token (syntax)

dtschema/dtc warnings/errors:
make[1]: *** Deleting file 'Documentation/devicetree/bindings/arm/fsl.example.dts'
Traceback (most recent call last):
File "/usr/local/bin/dt-extract-example", line 45, in <module>
binding = yaml.load(open(args.yamlfile, encoding='utf-8').read())
File "/usr/local/lib/python3.8/dist-packages/ruamel/yaml/main.py", line 434, in load
return constructor.get_single_data()
File "/usr/local/lib/python3.8/dist-packages/ruamel/yaml/constructor.py", line 120, in get_single_data
node = self.composer.get_single_node()
File "_ruamel_yaml.pyx", line 706, in _ruamel_yaml.CParser.get_single_node
File "_ruamel_yaml.pyx", line 724, in _ruamel_yaml.CParser._compose_document
File "_ruamel_yaml.pyx", line 775, in _ruamel_yaml.CParser._compose_node
File "_ruamel_yaml.pyx", line 889, in _ruamel_yaml.CParser._compose_mapping_node
File "_ruamel_yaml.pyx", line 775, in _ruamel_yaml.CParser._compose_node
File "_ruamel_yaml.pyx", line 889, in _ruamel_yaml.CParser._compose_mapping_node
File "_ruamel_yaml.pyx", line 775, in _ruamel_yaml.CParser._compose_node
File "_ruamel_yaml.pyx", line 889, in _ruamel_yaml.CParser._compose_mapping_node
File "_ruamel_yaml.pyx", line 773, in _ruamel_yaml.CParser._compose_node
File "_ruamel_yaml.pyx", line 850, in _ruamel_yaml.CParser._compose_sequence_node
File "_ruamel_yaml.pyx", line 775, in _ruamel_yaml.CParser._compose_node
File "_ruamel_yaml.pyx", line 889, in _ruamel_yaml.CParser._compose_mapping_node
File "_ruamel_yaml.pyx", line 773, in _ruamel_yaml.CParser._compose_node
File "_ruamel_yaml.pyx", line 850, in _ruamel_yaml.CParser._compose_sequence_node
File "_ruamel_yaml.pyx", line 775, in _ruamel_yaml.CParser._compose_node
File "_ruamel_yaml.pyx", line 889, in _ruamel_yaml.CParser._compose_mapping_node
File "_ruamel_yaml.pyx", line 773, in _ruamel_yaml.CParser._compose_node
File "_ruamel_yaml.pyx", line 852, in _ruamel_yaml.CParser._compose_sequence_node
File "_ruamel_yaml.pyx", line 904, in _ruamel_yaml.CParser._parse_next_event
ruamel.yaml.scanner.ScannerError: while scanning for the next token
found character that cannot start any token
in "<unicode string>", line 714, column 1
make[1]: *** [Documentation/devicetree/bindings/Makefile:20: Documentation/devicetree/bindings/arm/fsl.example.dts] Error 1
make[1]: *** Waiting for unfinished jobs....
./Documentation/devicetree/bindings/arm/fsl.yaml: while scanning for the next token
found character that cannot start any token
in "<unicode string>", line 714, column 1
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/arm/fsl.yaml: ignoring, error parsing file
warning: no schema found in file: ./Documentation/devicetree/bindings/arm/fsl.yaml
make: *** [Makefile:1441: dt_binding_check] Error 2

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/1545835

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.

2021-12-09 12:08:01

by Mueller, Reinhold

[permalink] [raw]
Subject: AW: [PATCH v2] arm64: dts: imx8mm: Add support for emtrion emCON-MX8M Mini

Hi Rob,

sorry for the late response.
The former guy has left the company. So i have taken the work for now.

I splitted the recent patch:
[PATCH v2] arm64: dts: imx8mm: Add support for emtrion emCON-MX8M Mini
in dts patches and yaml patches and did the necessary checks.

I will resent the new patchset: new emtrion hardware emCON-MX8M Mini

Regards
Reinhold


Reinhold Mueller
Software engineer


emtrion GmbH
Am Hasenbiel 6 | 76297 Stutensee | Germany

Phone +49 7244 62694 20
Fax +49 7244 62694 19
Email [email protected]
Online http://www.emtrion.de




emtrion GmbH • Amtsgericht Mannheim • HRB 110 300 • Geschäftsführer: Ramona Maurer, Achmed Haddou • Umsatzsteueridentifikationsnummer:DE813694260 • Impressum: http://www.emtrion.de/de/impressum.html

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> -----Ursprüngliche Nachricht-----
> Von: Rob Herring <[email protected]>
> Gesendet: Montag, 25. Oktober 2021 20:17
> An: Sreerama, Thanushree <[email protected]>
> Cc: [email protected]; [email protected];
> [email protected]; [email protected]; Erdrich, Frank
> <[email protected]>; [email protected]; linux-
> [email protected]; LinuxArmKernelMailingListe <linux-arm-
> [email protected]>; [email protected];
> [email protected]
> Betreff: Re: [PATCH v2] arm64: dts: imx8mm: Add support for emtrion
> emCON-MX8M Mini
>
> On Mon, 25 Oct 2021 18:15:09 +0200, [email protected]
> wrote:
> > From: Thanushree Sreerama <[email protected]>
> >
> > This patch adds support for the emtrion GmbH emCON-MX8M Mini
> modules.
> > They are available with NXP i.MX 8M Mini equipped with 2 or 4 GB
> Memory.
> >
> > The devicetree imx8mm-emcon.dtsi is the common part providing all
> > module components and the basic support for the SoC. The support for the
> > avari baseboard in the developer-kit configuration is provided by the
> > emcon-avari dts files.
> >
> > Signed-off-by: Thanushree Sreerama
> <[email protected]>
> > Reviewed by: Frank Erdrich <[email protected]>
> > ---
> > .../devicetree/bindings/arm/fsl.yaml | 1 +
> > arch/arm64/boot/dts/freescale/Makefile | 3 +-
> > .../boot/dts/freescale/imx8mm-emcon-avari.dts | 23 +
> > .../dts/freescale/imx8mm-emcon-avari.dtsi | 141 ++++
> > .../boot/dts/freescale/imx8mm-emcon.dtsi | 645
> ++++++++++++++++++
> > 5 files changed, 812 insertions(+), 1 deletion(-)
> > create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-emcon-
> avari.dts
> > create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-emcon-
> avari.dtsi
> > create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-emcon.dtsi
> >
>
> My bot found errors running 'make DT_CHECKER_FLAGS=-m
> dt_binding_check'
> on your patch (DT_CHECKER_FLAGS is new in v5.13):
>
> yamllint warnings/errors:
> ./Documentation/devicetree/bindings/arm/fsl.yaml:714:1: [error] syntax
> error: found character '\t' that cannot start any token (syntax)
>
> dtschema/dtc warnings/errors:
> make[1]: *** Deleting file
> 'Documentation/devicetree/bindings/arm/fsl.example.dts'
> Traceback (most recent call last):
> File "/usr/local/bin/dt-extract-example", line 45, in <module>
> binding = yaml.load(open(args.yamlfile, encoding='utf-8').read())
> File "/usr/local/lib/python3.8/dist-packages/ruamel/yaml/main.py", line
> 434, in load
> return constructor.get_single_data()
> File "/usr/local/lib/python3.8/dist-packages/ruamel/yaml/constructor.py",
> line 120, in get_single_data
> node = self.composer.get_single_node()
> File "_ruamel_yaml.pyx", line 706, in
> _ruamel_yaml.CParser.get_single_node
> File "_ruamel_yaml.pyx", line 724, in
> _ruamel_yaml.CParser._compose_document
> File "_ruamel_yaml.pyx", line 775, in
> _ruamel_yaml.CParser._compose_node
> File "_ruamel_yaml.pyx", line 889, in
> _ruamel_yaml.CParser._compose_mapping_node
> File "_ruamel_yaml.pyx", line 775, in
> _ruamel_yaml.CParser._compose_node
> File "_ruamel_yaml.pyx", line 889, in
> _ruamel_yaml.CParser._compose_mapping_node
> File "_ruamel_yaml.pyx", line 775, in
> _ruamel_yaml.CParser._compose_node
> File "_ruamel_yaml.pyx", line 889, in
> _ruamel_yaml.CParser._compose_mapping_node
> File "_ruamel_yaml.pyx", line 773, in
> _ruamel_yaml.CParser._compose_node
> File "_ruamel_yaml.pyx", line 850, in
> _ruamel_yaml.CParser._compose_sequence_node
> File "_ruamel_yaml.pyx", line 775, in
> _ruamel_yaml.CParser._compose_node
> File "_ruamel_yaml.pyx", line 889, in
> _ruamel_yaml.CParser._compose_mapping_node
> File "_ruamel_yaml.pyx", line 773, in
> _ruamel_yaml.CParser._compose_node
> File "_ruamel_yaml.pyx", line 850, in
> _ruamel_yaml.CParser._compose_sequence_node
> File "_ruamel_yaml.pyx", line 775, in
> _ruamel_yaml.CParser._compose_node
> File "_ruamel_yaml.pyx", line 889, in
> _ruamel_yaml.CParser._compose_mapping_node
> File "_ruamel_yaml.pyx", line 773, in
> _ruamel_yaml.CParser._compose_node
> File "_ruamel_yaml.pyx", line 852, in
> _ruamel_yaml.CParser._compose_sequence_node
> File "_ruamel_yaml.pyx", line 904, in
> _ruamel_yaml.CParser._parse_next_event
> ruamel.yaml.scanner.ScannerError: while scanning for the next token
> found character that cannot start any token
> in "<unicode string>", line 714, column 1
> make[1]: *** [Documentation/devicetree/bindings/Makefile:20:
> Documentation/devicetree/bindings/arm/fsl.example.dts] Error 1
> make[1]: *** Waiting for unfinished jobs....
> ./Documentation/devicetree/bindings/arm/fsl.yaml: while scanning for the
> next token
> found character that cannot start any token
> in "<unicode string>", line 714, column 1
> /builds/robherring/linux-dt-
> review/Documentation/devicetree/bindings/arm/fsl.yaml: ignoring, error
> parsing file
> warning: no schema found in file:
> ./Documentation/devicetree/bindings/arm/fsl.yaml
> make: *** [Makefile:1441: dt_binding_check] Error 2
>
> doc reference errors (make refcheckdocs):
>
> See https://patchwork.ozlabs.org/patch/1545835
>
> This check can fail if there are any dependencies. The base for a patch
> series is generally the most recent rc1.
>
> If you already ran 'make dt_binding_check' and didn't see the above
> error(s), then make sure 'yamllint' is installed and dt-schema is up to
> date:
>
> pip3 install dtschema --upgrade
>
> Please check and re-submit.