From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A44F4C43381 for ; Wed, 27 Feb 2019 20:01:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5449521850 for ; Wed, 27 Feb 2019 20:01:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="lMjsrcOg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730311AbfB0UBH (ORCPT ); Wed, 27 Feb 2019 15:01:07 -0500 Received: from mail-lf1-f68.google.com ([209.85.167.68]:42964 "EHLO mail-lf1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730212AbfB0UBG (ORCPT ); Wed, 27 Feb 2019 15:01:06 -0500 Received: by mail-lf1-f68.google.com with SMTP id p1so13369057lfk.9 for ; Wed, 27 Feb 2019 12:01:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=T8R3huocdSzzjKvajFCrbuq/U9qtT8qNxJTewVBXs2M=; b=lMjsrcOg0/PcCM7TqmpF+eRHpvemBM4CAWOgxqvOAI4p8vkf7MujH6ExeeOmUbnaFP cV1ZqcijI5bozQEHM8o7hats4Aej/iEIUk1SZCv5PpOuPVW2RbzzDDIjABz6dF/PgXWV q1w9GTQDJm2jr11XTheDQRdmovqBJ0pemi7hw09rEOTXxli4WP/2Lwxu65sib3MlZrw3 HkbgB8BaQbrK/h/zLz2mzoKoNGryOB6E012RO0Zuq1H6WPCYe6PZG/yLFp1eXsa6wP2T 65iRJV1+UJa+PyFlN5JFeRkohkbFecd1oG4LAya1oEnjWANCFYm+ukIwbOmiM8ft+BgG KxmQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=T8R3huocdSzzjKvajFCrbuq/U9qtT8qNxJTewVBXs2M=; b=qxj2CJxM+ysly0Q9jRLshB50ijoeONOjc8UKLNsjTzJN2YSl7neyCDb7il0tWUqfxd RcMtIYIEBRwBw9nUet5x3vhOlChX1dIfIGpBrlt70x6CxoH5Dx7gxHdsSZarY7jcqU/u /WZQNEduIydsDzUzI3FgBL2k9tqyIHvBBCOYyhRYEQxA654oXzeb1LAOQJ3sSlGnlqq7 xhhc3yo2vELw+YEyawMq6Kx4RcCrSvJDKuBdwCpC7hr1o+osT9qeUrf4KDgUcHxFgOn2 8ij+RwA2+q6uNDlwBYtMnuNH9O2ymKS6s8wuQKJy9UJexI9OBI+CwMJVjj5tTZD8J/Re WFPA== X-Gm-Message-State: AHQUAuYFj53bZimzDF642FAC6mROMrMRNBYWjDTsaOlAJ0OH7W21U3Dm OoR0H6P2xzIeH6dFD19MLMMRs2MMUbaNjC6cLeMz4w== X-Google-Smtp-Source: AHgI3IZG/TpASYBSGpRfeyDKu7xo6kSgVw0d75bwnDaMO1BNM2sK0FHJ9RSeWlx0U76cs9BebJ2K6lejNqrgEgGKtNk= X-Received: by 2002:ac2:55ad:: with SMTP id y13mr1977318lfg.97.1551297661564; Wed, 27 Feb 2019 12:01:01 -0800 (PST) MIME-Version: 1.0 References: <20190227074009.19248-1-bjorn.andersson@linaro.org> In-Reply-To: <20190227074009.19248-1-bjorn.andersson@linaro.org> From: Nicolas Dechesne Date: Wed, 27 Feb 2019 21:00:50 +0100 Message-ID: Subject: Re: [PATCH] arm64: dts: qcom: Add Dragonboard 845c To: Bjorn Andersson Cc: Andy Gross , David Brown , Rob Herring , Mark Rutland , linux-arm-msm , devicetree@vger.kernel.org, lkml Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 27, 2019 at 8:39 AM Bjorn Andersson wrote: > > This adds an initial dts for the Dragonboard 845. Supported > functionality includes Debug UART, UFS, USB-C (peripheral), USB-A > (host), Ethernet, microSD-card and Bluetooth. > > Initializing the SMMU is clearing the mapping used for the splash screen > framebuffer, which causes the baord to reboot. This can be worked around > using: > > fastboot oem select-display-panel none > > Ethernet and the second USB-A port depends on a functional firmware > loader for the uPD720201. > > Signed-off-by: Bjorn Andersson > --- > > This depends on the addition of the PCIe controller and PHY nodes, from > https://lore.kernel.org/lkml/20190227070022.31975-1-bjorn.andersson@linaro.org/ > > arch/arm64/boot/dts/qcom/Makefile | 1 + > arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 570 +++++++++++++++++++++ > 2 files changed, 571 insertions(+) > create mode 100644 arch/arm64/boot/dts/qcom/sdm845-db845c.dts > > diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile > index 21d548f02d39..b3fe72ff2955 100644 > --- a/arch/arm64/boot/dts/qcom/Makefile > +++ b/arch/arm64/boot/dts/qcom/Makefile > @@ -7,6 +7,7 @@ dtb-$(CONFIG_ARCH_QCOM) += msm8992-bullhead-rev-101.dtb > dtb-$(CONFIG_ARCH_QCOM) += msm8994-angler-rev-101.dtb > dtb-$(CONFIG_ARCH_QCOM) += msm8996-mtp.dtb > dtb-$(CONFIG_ARCH_QCOM) += msm8998-mtp.dtb > +dtb-$(CONFIG_ARCH_QCOM) += sdm845-db845c.dtb > dtb-$(CONFIG_ARCH_QCOM) += sdm845-mtp.dtb > dtb-$(CONFIG_ARCH_QCOM) += qcs404-evb-1000.dtb > dtb-$(CONFIG_ARCH_QCOM) += qcs404-evb-4000.dtb > diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts > new file mode 100644 > index 000000000000..0a5cfab6f6e2 > --- /dev/null > +++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts > @@ -0,0 +1,570 @@ > +// SPDX-License-Identifier: GPL-2.0 > + > +/dts-v1/; > + > +#include > +#include > +#include > +#include "sdm845.dtsi" > +#include "pm8998.dtsi" > +#include "pmi8998.dtsi" > + > +/ { > + model = "Thundercomm Dragonboard 845c"; > + compatible = "thundercomm,db845c", "qcom,sdm845"; > + > + aliases { > + serial0 = &uart9; > + hsuart0 = &uart6; > + }; > + > + chosen { > + stdout-path = "serial0:115200n8"; > + }; > + > + dc12v: dc12v-regulator { > + compatible = "regulator-fixed"; > + regulator-name = "DC12V"; > + regulator-min-microvolt = <12000000>; > + regulator-max-microvolt = <12000000>; > + regulator-always-on; > + }; > + > + lt9611_1v8: lt9611-vdd18-regulator { > + compatible = "regulator-fixed"; > + regulator-name = "LT9611_1V8"; > + > + vin-supply = <&vdc_5v>; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + > + gpio = <&tlmm 89 GPIO_ACTIVE_HIGH>; > + enable-active-high; > + }; > + > + lt9611_3v3: lt9611-3v3 { > + compatible = "regulator-fixed"; > + regulator-name = "LT9611_3V3"; > + > + vin-supply = <&vdc_3v3>; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + > + // TODO: make it possible to drive same GPIO from two clients > + // gpio = <&tlmm 89 GPIO_ACTIVE_HIGH>; > + // enable-active-high; > + }; > + > + pcie0_1p05v: pcie-0-1p05v-regulator { > + compatible = "regulator-fixed"; > + regulator-name = "PCIE0_1.05V"; > + > + vin-supply = <&vbat>; > + regulator-min-microvolt = <1050000>; > + regulator-max-microvolt = <1050000>; > + > + // TODO: make it possible to drive same GPIO from two clients > + // gpio = <&tlmm 90 GPIO_ACTIVE_HIGH>; > + // enable-active-high; > + }; > + > + pcie0_3p3v_dual: vldo-3v3-regulator { > + compatible = "regulator-fixed"; > + regulator-name = "VLDO_3V3"; > + > + vin-supply = <&vbat>; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + > + gpio = <&tlmm 90 GPIO_ACTIVE_HIGH>; > + enable-active-high; > + }; > + > + gpio_keys { > + compatible = "gpio-keys"; > + #address-cells = <1>; > + #size-cells = <0>; > + autorepeat; > + > + pinctrl-names = "default"; > + pinctrl-0 = <&vol_up_pin_a>; > + > + vol-up { > + label = "Volume Up"; > + linux,code = ; > + gpios = <&pm8998_gpio 6 GPIO_ACTIVE_LOW>; > + }; > + }; > + > + leds { > + compatible = "gpio-leds"; > + > + user4 { > + label = "db845c:green:user4"; I think we've agreed to standardize on label names for 96boards compatible boards. https://lore.kernel.org/lkml/20190205192412.GG31919@minitux/ > + gpios = <&pm8998_gpio 13 GPIO_ACTIVE_HIGH>; > + linux,default-trigger = "heartbeat"; > + default-state = "off"; > + }; > + > + wlan { > + label = "db845c:yellow:wlan"; > + gpios = <&pm8998_gpio 9 GPIO_ACTIVE_HIGH>; > + linux,default-trigger = "phy0tx"; > + default-state = "off"; > + }; > + > + bt { > + label = "db845c:blue:bt"; > + gpios = <&pm8998_gpio 5 GPIO_ACTIVE_HIGH>; > + linux,default-trigger = "bluetooth-power"; > + default-state = "off"; > + }; > + }; > + > + v5p0_hdmiout: v5p0-hdmiout-regulator { > + compatible = "regulator-fixed"; > + regulator-name = "V5P0_HDMIOUT"; > + > + vin-supply = <&vdc_5v>; > + regulator-min-microvolt = <500000>; > + regulator-max-microvolt = <500000>; > + > + // TODO: make it possible to drive same GPIO from two clients > + // gpio = <&tlmm 89 GPIO_ACTIVE_HIGH>; > + // enable-active-high; > + }; > + > + vbat: vbat-regulator { > + compatible = "regulator-fixed"; > + regulator-name = "VBAT"; > + > + vin-supply = <&dc12v>; > + regulator-min-microvolt = <4200000>; > + regulator-max-microvolt = <4200000>; > + regulator-always-on; > + }; > + > + vbat_som: vbat-som-regulator { > + compatible = "regulator-fixed"; > + regulator-name = "VBAT_SOM"; > + > + vin-supply = <&dc12v>; > + regulator-min-microvolt = <4200000>; > + regulator-max-microvolt = <4200000>; > + regulator-always-on; > + }; > + > + vdc_3v3: vdc-3v3-regulator { > + compatible = "regulator-fixed"; > + regulator-name = "VDC_3V3"; > + vin-supply = <&dc12v>; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + regulator-always-on; > + }; > + > + vdc_5v: vdc-5v-regulator { > + compatible = "regulator-fixed"; > + regulator-name = "VDC_5V"; > + > + vin-supply = <&dc12v>; > + regulator-min-microvolt = <500000>; > + regulator-max-microvolt = <500000>; > + regulator-always-on; > + }; > + > + vreg_s4a_1p8: vreg-s4a-1p8 { > + compatible = "regulator-fixed"; > + regulator-name = "vreg_s4a_1p8"; > + > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + regulator-always-on; > + }; > + > + vph_pwr: vph-pwr-regulator { > + compatible = "regulator-fixed"; > + regulator-name = "vph_pwr"; > + > + vin-supply = <&vbat_som>; > + }; > +}; > + > +&apps_rsc { > + pm8998-rpmh-regulators { > + compatible = "qcom,pm8998-rpmh-regulators"; > + qcom,pmic-id = "a"; > + vdd-s1-supply = <&vph_pwr>; > + vdd-s2-supply = <&vph_pwr>; > + vdd-s3-supply = <&vph_pwr>; > + vdd-s4-supply = <&vph_pwr>; > + vdd-s5-supply = <&vph_pwr>; > + vdd-s6-supply = <&vph_pwr>; > + vdd-s7-supply = <&vph_pwr>; > + vdd-s8-supply = <&vph_pwr>; > + vdd-s9-supply = <&vph_pwr>; > + vdd-s10-supply = <&vph_pwr>; > + vdd-s11-supply = <&vph_pwr>; > + vdd-s12-supply = <&vph_pwr>; > + vdd-s13-supply = <&vph_pwr>; > + vdd-l1-l27-supply = <&vreg_s7a_1p025>; > + vdd-l2-l8-l17-supply = <&vreg_s3a_1p35>; > + vdd-l3-l11-supply = <&vreg_s7a_1p025>; > + vdd-l4-l5-supply = <&vreg_s7a_1p025>; > + vdd-l6-supply = <&vph_pwr>; > + vdd-l7-l12-l14-l15-supply = <&vreg_s5a_2p04>; > + vdd-l9-supply = <&vreg_bob>; > + vdd-l10-l23-l25-supply = <&vreg_bob>; > + vdd-l13-l19-l21-supply = <&vreg_bob>; > + vdd-l16-l28-supply = <&vreg_bob>; > + vdd-l18-l22-supply = <&vreg_bob>; > + vdd-l20-l24-supply = <&vreg_bob>; > + vdd-l26-supply = <&vreg_s3a_1p35>; > + vin-lvs-1-2-supply = <&vreg_s4a_1p8>; > + > + vreg_s3a_1p35: smps3 { > + regulator-min-microvolt = <1352000>; > + regulator-max-microvolt = <1352000>; > + }; > + > + vreg_s5a_2p04: smps5 { > + regulator-min-microvolt = <1904000>; > + regulator-max-microvolt = <2040000>; > + }; > + > + vreg_s7a_1p025: smps7 { > + regulator-min-microvolt = <900000>; > + regulator-max-microvolt = <1028000>; > + }; > + > + vreg_l1a_0p875: ldo1 { > + regulator-min-microvolt = <880000>; > + regulator-max-microvolt = <880000>; > + regulator-initial-mode = ; > + }; > + > + vreg_l12a_1p8: ldo12 { > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + regulator-initial-mode = ; > + }; > + > + vreg_l7a_1p8: ldo7 { > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + regulator-initial-mode = ; > + }; > + > + vreg_l13a_2p95: ldo13 { > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <2960000>; > + regulator-initial-mode = ; > + }; > + > + vreg_l17a_1p3: ldo17 { > + regulator-min-microvolt = <1304000>; > + regulator-max-microvolt = <1304000>; > + regulator-initial-mode = ; > + }; > + > + vreg_l20a_2p95: ldo20 { > + regulator-min-microvolt = <2960000>; > + regulator-max-microvolt = <2968000>; > + regulator-initial-mode = ; > + }; > + > + vreg_l21a_2p95: ldo21 { > + regulator-min-microvolt = <2960000>; > + regulator-max-microvolt = <2968000>; > + regulator-initial-mode = ; > + }; > + > + vreg_l24a_3p075: ldo24 { > + regulator-min-microvolt = <3088000>; > + regulator-max-microvolt = <3088000>; > + regulator-initial-mode = ; > + }; > + > + vreg_l25a_3p3: ldo25 { > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3312000>; > + regulator-initial-mode = ; > + }; > + > + vreg_l26a_1p2: ldo26 { > + regulator-min-microvolt = <1200000>; > + regulator-max-microvolt = <1200000>; > + regulator-initial-mode = ; > + }; > + }; > + > + pmi8998-rpmh-regulators { > + compatible = "qcom,pmi8998-rpmh-regulators"; > + qcom,pmic-id = "b"; > + > + vdd-bob-supply = <&vph_pwr>; > + > + vreg_bob: bob { > + regulator-min-microvolt = <3312000>; > + regulator-max-microvolt = <3600000>; > + regulator-initial-mode = ; > + regulator-allow-bypass; > + }; > + }; > +}; > + > +&gcc { > + protected-clocks = , > + , > + ; > +}; > + > +&pcie0 { > + status = "okay"; > + perst-gpio = <&tlmm 35 GPIO_ACTIVE_LOW>; > + enable-gpio = <&tlmm 134 GPIO_ACTIVE_HIGH>; > + > + pinctrl-names = "default"; > + pinctrl-0 = <&pcie0_perst_state>, <&pcie0_clkreq_state>, <&pcie0_wake_state>; > + > + vddpe-3v3-supply = <&pcie0_3p3v_dual>; > +}; > + > +&pcie0_phy { > + status = "okay"; > + > + vdda-phy-supply = <&vreg_l1a_0p875>; > + vdda-pll-supply = <&vreg_l26a_1p2>; > +}; > + > +&pm8998_gpio { > + vol_up_pin_a: vol-up-active { > + pins = "gpio6"; > + function = "normal"; > + input-enable; > + bias-pull-up; > + qcom,drive-strength = ; > + }; > +}; > + > +&pm8998_pon { > + resin { > + compatible = "qcom,pm8941-resin"; > + interrupts = <0x0 0x8 1 IRQ_TYPE_EDGE_BOTH>; > + debounce = <15625>; > + bias-pull-up; > + linux,code = ; > + }; > +}; > + > +&qupv3_id_0 { > + status = "okay"; > +}; > + > +&qupv3_id_1 { > + status = "okay"; > +}; > + > +&sdhc_2 { > + status = "okay"; > + > + pinctrl-names = "default"; > + pinctrl-0 = <&sdc2_clk &sdc2_cmd &sdc2_data &sd_card_det_n>; > + > + vmmc-supply = <&vreg_l21a_2p95>; > + vqmmc-supply = <&vreg_l13a_2p95>; > + > + bus-width = <4>; > + cd-gpios = <&tlmm 126 GPIO_ACTIVE_LOW>; > +}; > + > +&tlmm { > + pcie0_pwren_state: pcie0-pwren { > + pins = "gpio90"; > + function = "gpio"; > + > + drive-strength = <2>; > + bias-disable; > + }; > + > + pcie0_perst_state: pcie0-reset { > + pins = "gpio35"; > + function = "gpio"; > + > + drive-strength = <2>; > + output-low; > + bias-pull-down; > + }; > + > + pcie0_clkreq_state: pcie0-clkreq { > + pins = "gpio36"; > + function = "pci_e0"; > + bias-pull-up; > + }; > + > + pcie0_wake_state: pcie0-wake { > + pins = "gpio37"; > + function = "gpio"; > + > + drive-strength = <2>; > + bias-pull-up; > + }; > + > + sdc2_clk: sdc2-clk { > + pins = "sdc2_clk"; > + bias-disable; > + > + /* > + * It seems that mmc_test reports errors if drive > + * strength is not 16 on clk, cmd, and data pins. > + */ > + drive-strength = <16>; > + }; > + > + sdc2_cmd: sdc2-cmd { > + pins = "sdc2_cmd"; > + bias-pull-up; > + drive-strength = <10>; > + }; > + > + sdc2_data: sdc2-data { > + pins = "sdc2_data"; > + bias-pull-up; > + drive-strength = <10>; > + }; > + > + sd_card_det_n: sd-card-det-n { > + pins = "gpio126"; > + function = "gpio"; > + bias-pull-up; > + }; > +}; > + > +&uart6 { > + status = "okay"; > + > + bluetooth { > + compatible = "qcom,wcn3990-bt"; > + > + vddio-supply = <&vreg_s4a_1p8>; > + vddxo-supply = <&vreg_l7a_1p8>; > + vddrf-supply = <&vreg_l17a_1p3>; > + vddch0-supply = <&vreg_l25a_3p3>; > + max-speed = <3200000>; > + }; > +}; > + > +&uart9 { > + status = "okay"; > +}; > + > +&usb_1 { > + status = "okay"; > +}; > + > +&usb_1_dwc3 { > + dr_mode = "peripheral"; > +}; > + > +&usb_1_hsphy { > + status = "okay"; > + > + vdd-supply = <&vreg_l1a_0p875>; > + vdda-pll-supply = <&vreg_l12a_1p8>; > + vdda-phy-dpdm-supply = <&vreg_l24a_3p075>; > + > + qcom,imp-res-offset-value = <8>; > + qcom,hstx-trim-value = ; > + qcom,preemphasis-level = ; > + qcom,preemphasis-width = ; > +}; > + > +&usb_1_qmpphy { > + status = "okay"; > + > + vdda-phy-supply = <&vreg_l26a_1p2>; > + vdda-pll-supply = <&vreg_l1a_0p875>; > +}; > + > +&usb_2 { > + status = "okay"; > +}; > + > +&usb_2_dwc3 { > + dr_mode = "host"; > +}; > + > +&usb_2_hsphy { > + status = "okay"; > + > + vdd-supply = <&vreg_l1a_0p875>; > + vdda-pll-supply = <&vreg_l12a_1p8>; > + vdda-phy-dpdm-supply = <&vreg_l24a_3p075>; > + > + qcom,imp-res-offset-value = <8>; > + qcom,hstx-trim-value = ; > +}; > + > +&usb_2_qmpphy { > + status = "okay"; > + > + vdda-phy-supply = <&vreg_l26a_1p2>; > + vdda-pll-supply = <&vreg_l1a_0p875>; > +}; > + > +&ufs_mem_hc { > + status = "okay"; > + > + vcc-supply = <&vreg_l20a_2p95>; > + vcc-max-microamp = <800000>; > +}; > + > +&ufs_mem_phy { > + status = "okay"; > + > + vdda-phy-supply = <&vreg_l1a_0p875>; > + vdda-pll-supply = <&vreg_l26a_1p2>; > +}; > + > +&wifi { > + status = "okay"; > +}; > + > +/* PINCTRL - additions to nodes defined in sdm845.dtsi */ > + > +&qup_uart6_default { > + pinmux { > + pins = "gpio45", "gpio46", "gpio47", "gpio48"; > + function = "qup6"; > + }; > + > + cts { > + pins = "gpio45"; > + bias-disable; > + }; > + > + rts-tx { > + pins = "gpio46", "gpio47"; > + drive-strength = <2>; > + bias-disable; > + }; > + > + rx { > + pins = "gpio48"; > + bias-pull-up; > + }; > +}; > + > +&qup_uart9_default { > + pinconf-tx { > + pins = "gpio4"; > + drive-strength = <2>; > + bias-disable; > + }; > + > + pinconf-rx { > + pins = "gpio5"; > + drive-strength = <2>; > + bias-pull-up; > + }; > +}; > -- > 2.18.0 >