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Message-ID: <aXORedjdeUNoA1Al@lizhi-Precision-Tower-5810>
Date: Fri, 23 Jan 2026 10:19:21 -0500
From: Frank Li <Frank.li@....com>
To: maudspierings@...ontroll.com
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>,
Matti Vaittinen <mazziesaccount@...il.com>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, imx@...ts.linux.dev,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v5 3/5] arm64: dts: freescale: add Ka-Ro Electronics
tx8m-1610 COM
On Fri, Jan 23, 2026 at 09:30:30AM +0100, Maud Spierings via B4 Relay wrote:
> From: Maud Spierings <maudspierings@...ontroll.com>
>
> The Ka-Ro Electronics tx8m-1610 is a COM based on the imx8mm SOC. It has
> 1 GB of ram and 4 GB of eMMC storage on board.
>
> Add it to enable boards based on this module
>
> Signed-off-by: Maud Spierings <maudspierings@...ontroll.com>
> ---
Reviewed-by: Frank Li <Frank.Li@....com>
> .../arm64/boot/dts/freescale/imx8mm-tx8m-1610.dtsi | 444 +++++++++++++++++++++
> 1 file changed, 444 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-tx8m-1610.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-tx8m-1610.dtsi
> new file mode 100644
> index 000000000000..44d863c8d930
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx8mm-tx8m-1610.dtsi
> @@ -0,0 +1,444 @@
> +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> +/*
> + * Copyright (C) 2021 Lothar Waßmann <LW@...O-electronics.de>
> + * 2025 Maud Spierings <maudspierings@...ontroll.com>
> + */
> +
> +#include "imx8mm.dtsi"
> +
> +/ {
> + model = "Ka-Ro Electronics TX8M-1610";
> + compatible = "karo,imx8mm-tx8m-1610", "fsl,imx8mm";
> +
> + reg_3v3_etn: regulator-3v3-etn {
> + compatible = "regulator-fixed";
> + enable-active-high;
> + gpio = <&gpio1 23 GPIO_ACTIVE_HIGH>;
> + pinctrl-0 = <&pinctrl_reg_3v3_etn>;
> + pinctrl-names = "default";
> + regulator-boot-on;
> + regulator-max-microvolt = <3300000>;
> + regulator-min-microvolt = <3300000>;
> + regulator-name = "3v3-etn";
> + };
> +};
> +
> +&A53_0 {
> + cpu-supply = <®_vdd_arm>;
> +};
> +
> +&A53_1 {
> + cpu-supply = <®_vdd_arm>;
> +};
> +
> +&A53_2 {
> + cpu-supply = <®_vdd_arm>;
> +};
> +
> +&A53_3 {
> + cpu-supply = <®_vdd_arm>;
> +};
> +
> +&ddrc {
> + operating-points-v2 = <&ddrc_opp_table>;
> +
> + ddrc_opp_table: opp-table {
> + compatible = "operating-points-v2";
> +
> + opp-400000000 {
> + opp-hz = /bits/ 64 <400000000>;
> + };
> + };
> +};
> +
> +&fec1 {
> + assigned-clocks = <&clk IMX8MM_CLK_ENET_AXI>,
> + <&clk IMX8MM_CLK_ENET_TIMER>,
> + <&clk IMX8MM_CLK_ENET_REF>,
> + <&clk IMX8MM_CLK_ENET_REF>;
> + assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_266M>,
> + <&clk IMX8MM_SYS_PLL2_100M>,
> + <&clk IMX8MM_SYS_PLL2_50M>,
> + <&clk IMX8MM_SYS_PLL2_50M>;
> + assigned-clock-rates = <0>, <100000000>, <50000000>, <50000000>;
> + clocks = <&clk IMX8MM_CLK_ENET1_ROOT>,
> + <&clk IMX8MM_CLK_ENET1_ROOT>,
> + <&clk IMX8MM_CLK_ENET_TIMER>,
> + <&clk IMX8MM_CLK_ENET_REF>;
> + phy-handle = <ðphy0>;
> + phy-mode = "rmii";
> + phy-reset-duration = <25>;
> + phy-reset-gpios = <&gpio1 29 GPIO_ACTIVE_LOW>;
> + phy-reset-post-delay = <1>;
> + phy-supply = <®_3v3_etn>;
> + pinctrl-0 = <&pinctrl_fec1>, <&pinctrl_ethphy_rst>;
> + pinctrl-names = "default";
> + status = "okay";
> +
> + mdio {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + ethphy0: ethernet-phy@0 {
> + reg = <0>;
> + clocks = <&clk IMX8MM_CLK_ENET_REF>;
> + interrupt-parent = <&gpio1>;
> + interrupts = <28 IRQ_TYPE_EDGE_FALLING>;
> + pinctrl-0 = <&pinctrl_ethphy_int>;
> + pinctrl-names = "default";
> + smsc,disable-energy-detect;
> + };
> + };
> +};
> +
> +&gpio1 {
> + gpio-line-names = "SODIMM_152", "SODIMM_42", "SODIMM_153", "PMIC_IRQ_B",
> + "SODIMM_154", "SODIMM_155", "SODIMM_156", "SODIMM_157",
> + "SODIMM_158", "SODIMM_159", "SODIMM_161", "SODIMM_162",
> + "SODIMM_34", "SODIMM_36", "SODIMM_27", "SODIMM_28",
> + "", "", "", "",
> + "", "", "", "ENET_POWER",
> + "", "", "", "",
> + "ENET_nINT", "ENET_nRST", "", "";
> +};
> +
> +&gpio2 {
> + gpio-line-names = "", "", "", "",
> + "", "", "", "",
> + "", "", "", "",
> + "SODIMM_51", "SODIMM_57", "SODIMM_56", "SODIMM_52",
> + "SODIMM_53", "SODIMM_54", "SODIMM_55", "SODIMM_15",
> + "SODIMM_45", "", "", "",
> + "", "", "", "",
> + "", "", "", "";
> +};
> +
> +&gpio3 {
> + gpio-line-names = "SODIMM_103", "SODIMM_104", "SODIMM_105", "SODIMM_106",
> + "SODIMM_107", "SODIMM_112", "SODIMM_108", "SODIMM_109",
> + "SODIMM_95", "SODIMM_110", "SODIMM_96", "SODIMM_97",
> + "SODIMM_98", "SODIMM_99", "SODIMM_113", "SODIMM_114",
> + "SODIMM_115", "SODIMM_101", "SODIMM_100", "SODIMM_77",
> + "SODIMM_72", "SODIMM_73", "SODIMM_74", "SODIMM_75",
> + "SODIMM_76", "SODIMM_43", "", "",
> + "", "", "", "";
> +};
> +
> +&gpio4 {
> + gpio-line-names = "SODIMM_178", "SODIMM_180", "SODIMM_184", "SODIMM_185",
> + "SODIMM_186", "SODIMM_187", "SODIMM_188", "SODIMM_189",
> + "SODIMM_190", "SODIMM_191", "SODIMM_179", "SODIMM_181",
> + "SODIMM_192", "SODIMM_193", "SODIMM_194", "SODIMM_195",
> + "SODIMM_196", "SODIMM_197", "SODIMM_198", "SODIMM_199",
> + "SODIMM_182", "SODIMM_79", "SODIMM_78", "SODIMM_84",
> + "SODIMM_87", "SODIMM_86", "SODIMM_85", "SODIMM_83",
> + "SODIMM_81", "SODIMM_80", "SODIMM_90", "SODIMM_93";
> +};
> +
> +&gpio5 {
> + gpio-line-names = "SODIMM_92", "SODIMM_91", "SODIMM_89", "SODIMM_144",
> + "SODIMM_143", "SODIMM_146", "SODIMM_68", "SODIMM_67",
> + "SODIMM_70", "SODIMM_69", "SODIMM_48", "SODIMM_46",
> + "SODIMM_47", "SODIMM_44", "PMIC_SCL", "PMIC_SDA",
> + "SODIMM_41", "SODIMM_40", "SODIMM_148", "SODIMM_149",
> + "SODIMM_150", "SODIMM_151", "SODIMM_60", "SODIMM_59",
> + "SODIMM_64", "SODIMM_63", "SODIMM_62", "SODIMM_61",
> + "SODIMM_66", "SODIMM_65", "", "";
> +};
> +
> +&i2c1 {
> + clock-frequency = <400000>;
> + pinctrl-0 = <&pinctrl_i2c1>;
> + pinctrl-1 = <&pinctrl_i2c1_gpio>;
> + pinctrl-names = "default", "gpio";
> + scl-gpios = <&gpio5 14 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
> + sda-gpios = <&gpio5 15 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
> + status = "okay";
> +
> + pmic: pmic@4b {
> + compatible = "rohm,bd71847";
> + reg = <0x4b>;
> + interrupt-parent = <&gpio1>;
> + interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
> + pinctrl-0 = <&pinctrl_pmic>;
> + pinctrl-names = "default";
> + rohm,reset-snvs-powered;
> +
> + regulators {
> + BUCK1 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-max-microvolt = <900000>;
> + regulator-min-microvolt = <780000>;
> + regulator-name = "buck1";
> + regulator-ramp-delay = <1250>;
> + };
> +
> + reg_vdd_arm: BUCK2 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-max-microvolt = <950000>;
> + regulator-min-microvolt = <805000>;
> + regulator-name = "buck2";
> + regulator-ramp-delay = <1250>;
> + rohm,dvs-run-voltage = <950000>;
> + rohm,dvs-idle-voltage = <810000>;
> + };
> +
> + BUCK3 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-max-microvolt = <900000>;
> + regulator-min-microvolt = <805000>;
> + regulator-name = "buck3";
> + };
> +
> + reg_vdd_3v3: BUCK4 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-max-microvolt = <3300000>;
> + regulator-min-microvolt = <3300000>;
> + regulator-name = "buck4";
> + };
> +
> + reg_vdd_1v8: BUCK5 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-max-microvolt = <1950000>;
> + regulator-min-microvolt = <1700000>;
> + regulator-name = "buck5";
> + };
> +
> + BUCK6 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-max-microvolt = <(1350000 + 100000)>;
> + regulator-min-microvolt = <(1350000 - 67000)>;
> + regulator-name = "buck6";
> + rohm,fb-pull-up-microvolt = <0>;
> + rohm,feedback-pull-up-r1-ohms = <2200>;
> + rohm,feedback-pull-up-r2-ohms = <499>;
> + };
> +
> + LDO1 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-max-microvolt = <1980000>;
> + regulator-min-microvolt = <1620000>;
> + regulator-name = "ldo1";
> + };
> +
> + LDO2 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-max-microvolt = <900000>;
> + regulator-min-microvolt = <760000>;
> + regulator-name = "ldo2";
> + };
> +
> + LDO3 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-max-microvolt = <1890000>;
> + regulator-min-microvolt = <1710000>;
> + regulator-name = "ldo3";
> + };
> +
> + LDO4 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-max-microvolt = <1000000>;
> + regulator-min-microvolt = <855000>;
> + regulator-name = "ldo4";
> + };
> +
> + LDO5 {
> + regulator-max-microvolt = <3300000>;
> + regulator-min-microvolt = <1800000>;
> + regulator-name = "ldo5";
> + };
> +
> + LDO6 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-max-microvolt = <1260000>;
> + regulator-min-microvolt = <1140000>;
> + regulator-name = "ldo6";
> + };
> + };
> + };
> +};
> +
> +&iomuxc {
> + pinctrl_ethphy_int: etnphy-intgrp {
> + fsl,pins = <
> + MX8MM_IOMUXC_ENET_RD2_GPIO1_IO28
> + (MX8MM_FSEL_FAST | MX8MM_HYS_SCHMITT)
> + >;
> + };
> +
> + pinctrl_ethphy_rst: etnphy-rstgrp {
> + fsl,pins = <
> + MX8MM_IOMUXC_ENET_RD3_GPIO1_IO29
> + (MX8MM_PULL_UP | MX8MM_PULL_ENABLE)
> + >;
> + };
> +
> + pinctrl_fec1: fec1grp {
> + fsl,pins = <
> + MX8MM_IOMUXC_ENET_MDC_ENET1_MDC
> + (MX8MM_DSE_X4 | MX8MM_PULL_UP | MX8MM_PULL_ENABLE)
> + MX8MM_IOMUXC_ENET_MDIO_ENET1_MDIO
> + (MX8MM_DSE_X4 | MX8MM_PULL_UP | MX8MM_PULL_ENABLE)
> + MX8MM_IOMUXC_ENET_TD2_ENET1_TX_CLK
> + (MX8MM_FSEL_FAST | MX8MM_SION)
> + MX8MM_IOMUXC_ENET_TD0_ENET1_RGMII_TD0
> + (MX8MM_DSE_X6 | MX8MM_FSEL_FAST)
> + MX8MM_IOMUXC_ENET_TD1_ENET1_RGMII_TD1
> + (MX8MM_DSE_X6 | MX8MM_FSEL_FAST)
> + MX8MM_IOMUXC_ENET_RD0_ENET1_RGMII_RD0
> + (MX8MM_FSEL_FAST | MX8MM_HYS_SCHMITT)
> + MX8MM_IOMUXC_ENET_RD1_ENET1_RGMII_RD1
> + (MX8MM_FSEL_FAST | MX8MM_HYS_SCHMITT)
> + MX8MM_IOMUXC_ENET_RXC_ENET1_RX_ER
> + MX8MM_FSEL_FAST
> + MX8MM_IOMUXC_ENET_RX_CTL_ENET1_RGMII_RX_CTL
> + MX8MM_FSEL_FAST
> + MX8MM_IOMUXC_ENET_TX_CTL_ENET1_RGMII_TX_CTL
> + (MX8MM_DSE_X6 | MX8MM_FSEL_FAST)
> + >;
> + };
> +
> + pinctrl_i2c1: i2c1grp {
> + fsl,pins = <
> + MX8MM_IOMUXC_I2C1_SCL_I2C1_SCL
> + MX8MM_I2C_DEFAULT
> + MX8MM_IOMUXC_I2C1_SDA_I2C1_SDA
> + MX8MM_I2C_DEFAULT
> + >;
> + };
> +
> + pinctrl_i2c1_gpio: i2c1-gpiogrp {
> + fsl,pins = <
> + MX8MM_IOMUXC_I2C1_SCL_GPIO5_IO14
> + MX8MM_I2C_DEFAULT
> + MX8MM_IOMUXC_I2C1_SDA_GPIO5_IO15
> + MX8MM_I2C_DEFAULT
> + >;
> + };
> +
> + pinctrl_pmic: pmicgrp {
> + fsl,pins = <
> + MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3
> + (MX8MM_PULL_UP | MX8MM_HYS_SCHMITT | MX8MM_PULL_ENABLE)
> + >;
> + };
> +
> + pinctrl_reg_3v3_etn: reg-3v3-etngrp {
> + fsl,pins = <
> + MX8MM_IOMUXC_ENET_TXC_GPIO1_IO23
> + (MX8MM_DSE_X4 | MX8MM_PULL_UP | MX8MM_PULL_ENABLE)
> + >;
> + };
> +
> + pinctrl_usdhc1: usdhc1grp {
> + fsl,pins = <
> + MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK
> + (MX8MM_FSEL_FAST | MX8MM_HYS_SCHMITT | MX8MM_PULL_ENABLE)
> + MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD
> + MX8MM_USDHC_DATA_DEFAULT
> + MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0
> + MX8MM_USDHC_DATA_DEFAULT
> + MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1
> + MX8MM_USDHC_DATA_DEFAULT
> + MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2
> + MX8MM_USDHC_DATA_DEFAULT
> + MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3
> + MX8MM_USDHC_DATA_DEFAULT
> + MX8MM_IOMUXC_SD1_DATA4_USDHC1_DATA4
> + MX8MM_USDHC_DATA_DEFAULT
> + MX8MM_IOMUXC_SD1_DATA5_USDHC1_DATA5
> + MX8MM_USDHC_DATA_DEFAULT
> + MX8MM_IOMUXC_SD1_DATA6_USDHC1_DATA6
> + MX8MM_USDHC_DATA_DEFAULT
> + MX8MM_IOMUXC_SD1_DATA7_USDHC1_DATA7
> + MX8MM_USDHC_DATA_DEFAULT
> + MX8MM_IOMUXC_SD1_STROBE_USDHC1_STROBE
> + (MX8MM_FSEL_FAST | MX8MM_HYS_SCHMITT | MX8MM_PULL_ENABLE)
> + MX8MM_IOMUXC_SD1_RESET_B_USDHC1_RESET_B
> + (MX8MM_DSE_X6 | MX8MM_FSEL_FAST | MX8MM_PULL_UP | MX8MM_PULL_ENABLE)
> + >;
> + };
> +
> + pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp {
> + fsl,pins = <
> + MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK
> + (MX8MM_DSE_X2 | MX8MM_FSEL_FAST | MX8MM_HYS_SCHMITT | MX8MM_PULL_ENABLE)
> + MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD
> + (MX8MM_DSE_X2 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0
> + (MX8MM_DSE_X2 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1
> + (MX8MM_DSE_X2 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2
> + (MX8MM_DSE_X2 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3
> + (MX8MM_DSE_X2 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_DATA4_USDHC1_DATA4
> + (MX8MM_DSE_X2 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_DATA5_USDHC1_DATA5
> + (MX8MM_DSE_X2 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_DATA6_USDHC1_DATA6
> + (MX8MM_DSE_X2 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_DATA7_USDHC1_DATA7
> + (MX8MM_DSE_X2 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_STROBE_USDHC1_STROBE
> + (MX8MM_DSE_X2 | MX8MM_FSEL_FAST | MX8MM_HYS_SCHMITT | MX8MM_PULL_ENABLE)
> + MX8MM_IOMUXC_SD1_RESET_B_USDHC1_RESET_B
> + (MX8MM_DSE_X6 | MX8MM_FSEL_FAST | MX8MM_PULL_UP | MX8MM_PULL_ENABLE)
> + >;
> + };
> +
> + pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
> + fsl,pins = <
> + MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK
> + (MX8MM_DSE_X6 | MX8MM_FSEL_FAST | MX8MM_HYS_SCHMITT | MX8MM_PULL_ENABLE)
> + MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD
> + (MX8MM_DSE_X6 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0
> + (MX8MM_DSE_X6 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1
> + (MX8MM_DSE_X6 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2
> + (MX8MM_DSE_X6 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3
> + (MX8MM_DSE_X6 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_DATA4_USDHC1_DATA4
> + (MX8MM_DSE_X6 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_DATA5_USDHC1_DATA5
> + (MX8MM_DSE_X6 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_DATA6_USDHC1_DATA6
> + (MX8MM_DSE_X6 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_DATA7_USDHC1_DATA7
> + (MX8MM_DSE_X6 | MX8MM_USDHC_DATA_DEFAULT)
> + MX8MM_IOMUXC_SD1_STROBE_USDHC1_STROBE
> + (MX8MM_DSE_X6 | MX8MM_FSEL_FAST | MX8MM_HYS_SCHMITT | MX8MM_PULL_ENABLE)
> + MX8MM_IOMUXC_SD1_RESET_B_USDHC1_RESET_B
> + (MX8MM_DSE_X6 | MX8MM_FSEL_FAST | MX8MM_PULL_UP | MX8MM_PULL_ENABLE)
> + >;
> + };
> +};
> +
> +&usdhc1 {
> + assigned-clocks = <&clk IMX8MM_CLK_USDHC1>;
> + assigned-clock-rates = <400000000>;
> + bus-width = <8>;
> + non-removable;
> + pinctrl-0 = <&pinctrl_usdhc1>;
> + pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
> + pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
> + pinctrl-names = "default", "state_100mhz", "state_200mhz";
> + vmmc-supply = <®_vdd_3v3>;
> + vqmmc-supply = <®_vdd_1v8>;
> + status = "okay";
> +};
>
> --
> 2.52.0
>
>
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