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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 63621C44500 for ; Fri, 3 Jul 2026 06:52:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=oV3f+50ed4LkIgc2qygb/N6CZZlLTsBadYHjngUXyJU=; b=rJGSmz15WpLmhfn7gN0wTT5liV 6ojFjFGErunDAS6TFYSdMDMuAipEYzdbV9uS0I512S7rR2bk5EKduPy2htOCvkYZ2AyS3SEtX3SMk c4+WiGHjYDrvsqmRx1tp8I8i7+rf26rycCbcGnt5puJ13/jc6c5nmqqdpkSVQciL9TZxlepG/QYd2 at7g5bQSPonKQ2EPwZF0cUzuhqtSidTtnrw9lk0jHU4atKaYx78Rl60i9Ze0nlSHFUOC+SCdLcjY/ hCoDVDkrjAAOiqhiHgJ2BcPUdEbMzXiIpCUAwXW3Ui8J44oRR9fKtxhf/WhL4eGpbYRoRDPGIkakH 8Kbgj+qg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wfXlC-00000006DaE-09sU; Fri, 03 Jul 2026 06:52:26 +0000 Received: from mail-ej1-x62b.google.com ([2a00:1450:4864:20::62b]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wfXlA-00000006DWC-0Wmj for linux-arm-kernel@lists.infradead.org; Fri, 03 Jul 2026 06:52:25 +0000 Received: by mail-ej1-x62b.google.com with SMTP id a640c23a62f3a-c1274bedebfso17752266b.2 for ; Thu, 02 Jul 2026 23:52:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1783061542; x=1783666342; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=oV3f+50ed4LkIgc2qygb/N6CZZlLTsBadYHjngUXyJU=; b=eLypEo6b+ZQ9mRrEPHcEPf1AlgbrOkN7hGmzIOKeFFepZiY1hMGxPxA8sUcNNuH3+l GS5naiU0KrxdJG+/jICJ5X9zP1POvZTV6dySSqMS4BCkRcWSZFck2VPmqqpSQo2A5yc+ Axg1Q/h2ixGdMvaC3zuggZO4kHgduhTjYRU2A= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783061542; x=1783666342; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=oV3f+50ed4LkIgc2qygb/N6CZZlLTsBadYHjngUXyJU=; b=joL2x3FwffRR+KtVxDqGbYl2kWVORM8RZHy71MUv3Bydw8oD7Nyh/9LSfwDEDFEW6d wKFUEfNrnG/5ZEHZxvyPe7nUY8k2h6BOuKMVsbSCZYePqTIRyvv3oWhm99ds0+dWK+UH +QjIp9HFLvwsdp/gPwpPB2zaV4fMbOJkww8EcgvUrMt2SmN0BOrrQRbFI+L5SbJ1mOl1 OHik0pRwOLBjw/sng42+D5BhzCNzyB5mxnXflV2vdA0sxEr9EmKzKBAUQQXGnwmvMtsl 4avIQY9jIrE8+wUJGRzBABJlVyO4E8BJlpM3TFQGPsk0rBDU6fHKHlcbk1QUISE1MvKg mlcQ== X-Forwarded-Encrypted: i=1; AHgh+RowvmXfiQGoNb7ey+E8XQGh/c8rqMznvCvf4+uaH0o5WHId/gDpRIY2ljbTx2w8J7QIlMoyM4NkJvp7d7+MNGhT@lists.infradead.org X-Gm-Message-State: AOJu0YxPCdRxOx1Rh+t1hGHg/8ORTSERC2LpO4ppFTMHQgYXWCanXrn/ yLhkRG6PxKcyW7SM8SKdkClvq4ScsJYyJrvxjCVrrkjcpO9XE3fORPXDbCu7gfgvyus= X-Gm-Gg: AfdE7ckoWTrmpEouPvzudV2muR+CrfwgsEXF9141aV4BtIuJLewDWF2tKS1OiSnsR8o bXY3Z+w1/VEs/l0SPKVKfOYItaIzD6X6G+RaDFj22Ey7/nYDz3hv0jLK1uk3nN3ugK1fwpgNDcN T1cdsmizDTgZx/aLSjrgKIcp4zeTGYdw/P+iBt2CyxG8naOjLILeo5Sd8xsJZAgUCc9fyH93K5H 7R+M/NZHveNU4LwtqnvTVXssTD3g4+4uqg+CM/m+OiW42A8sdWuz/kYZQBA+BAzstJT179ebJdz 8pX3cl2Zhb3u1+vUl3jiBbq7XNJ1GCiwEtrMzI495M6HsfqLfbp1dYSpHxebtOKUo2u9I+iZrMq Wdtp+4AUrbSk2fm70QnUh01qAK0+mAYZo8Ci62x1bWpg34HiuOZUDw16+P7zGT+tuPTDB0WSTMU 0qnFg1OZ7aUt68T5fFXPwa/vXYDzdYzV8V+U9lYE6v/ocQqeynbGMgC36hzjDDcCYDHSmiFuoHW iyeS1T0OI4= X-Received: by 2002:a17:907:602:b0:c12:67d2:3d6b with SMTP id a640c23a62f3a-c12a9dc8427mr321676166b.11.1783061542108; Thu, 02 Jul 2026 23:52:22 -0700 (PDT) Received: from dario-ThinkPad-P14s-Gen-5.. ([2.196.43.95]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c12b62c4695sm235462866b.44.2026.07.02.23.52.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Jul 2026 23:52:21 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: michael@amarulasolutions.com, linux-amarula@amarulasolutions.com, francesco.utel@engicam.com, domenico.acri@engicam.com, Dario Binacchi , Alexandre Torgue , Conor Dooley , Krzysztof Kozlowski , Maxime Coquelin , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Subject: [PATCH v7 15/16] arm64: dts: st: support Engicam MicroGEA-STM32MP257-RMM board Date: Fri, 3 Jul 2026 08:49:05 +0200 Message-ID: <20260703065110.1433283-16-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260703065110.1433283-1-dario.binacchi@amarulasolutions.com> References: <20260703065110.1433283-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260702_235224_218170_5BDE2EFC X-CRM114-Status: GOOD ( 15.64 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Support for Engicam MicroGEA-STM32MP257-RMM board with: - 8 GB eMMC Flash - 2 GB LPDDR4 DRAM - CAN - LEDs - LCD panel with touchscreen - Micro SD card connector - Audio codec - Buzzer Signed-off-by: Dario Binacchi --- (no changes since v5) Changes in v5: - Fix touchscreen resolution to 480x854 - Fix SPI1 CS0 polarity to GPIO_ACTIVE_LOW Changes in v2: - Drop the clocks property from the sai1 node in stm32mp257-engicam-microgea-rmm.dts to avoid overriding the peripheral bus clock reference defined in the base SoC device tree. Suggested by Sashiko. - Reference the existing labeled nodes directly at the root level using &sai1a and &sai1b in stm32mp257-engicam-microgea-rmm.dts instead of redefining the entire node structure and redeclaring the labels. Suggested by Sashiko. - Drop the #clock-cells property from sai1a and remove the reference to sai1a from the clocks array in sai1b, relying strictly on the st,sync property to handle internal synchronization. arch/arm64/boot/dts/st/Makefile | 1 + .../st/stm32mp257-engicam-microgea-rmm.dts | 319 ++++++++++++++++++ 2 files changed, 320 insertions(+) create mode 100644 arch/arm64/boot/dts/st/stm32mp257-engicam-microgea-rmm.dts diff --git a/arch/arm64/boot/dts/st/Makefile b/arch/arm64/boot/dts/st/Makefile index 63908113ae36..386eca593c54 100644 --- a/arch/arm64/boot/dts/st/Makefile +++ b/arch/arm64/boot/dts/st/Makefile @@ -2,5 +2,6 @@ dtb-$(CONFIG_ARCH_STM32) += \ stm32mp215f-dk.dtb \ stm32mp235f-dk.dtb \ + stm32mp257-engicam-microgea-rmm.dtb \ stm32mp257f-dk.dtb \ stm32mp257f-ev1.dtb diff --git a/arch/arm64/boot/dts/st/stm32mp257-engicam-microgea-rmm.dts b/arch/arm64/boot/dts/st/stm32mp257-engicam-microgea-rmm.dts new file mode 100644 index 000000000000..3aea0c2f6651 --- /dev/null +++ b/arch/arm64/boot/dts/st/stm32mp257-engicam-microgea-rmm.dts @@ -0,0 +1,319 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2026 Amarula Solutions, Dario Binacchi + * Copyright (C) 2026 Engicam srl + */ + +/dts-v1/; + +#include +#include +#include + +#include "stm32mp257-engicam-microgea.dtsi" + +/ { + model = "Engicam MicroGEA STM32MP257D RMM Board"; + compatible = "engicam,microgea-stm32mp257-rmm", + "engicam,microgea-stm32mp257", "st,stm32mp257"; + + aliases { + mmc0 = &sdmmc1; + mmc1 = &sdmmc2; + serial0 = &usart2; + serial1 = &usart1; + }; + + backlight: backlight { + compatible = "pwm-backlight"; + brightness-levels = <0 100>; + num-interpolated-steps = <100>; + default-brightness-level = <85>; + pwms = <&pwm2 0 100000 0>; + }; + + buzzer { + compatible = "pwm-beeper"; + pwms = <&pwm4 0 1000000 0>; + }; + + chosen { + stdout-path = "serial0:115200n8"; + #address-cells = <2>; + #size-cells = <2>; + ranges; + + framebuffer { + compatible = "simple-framebuffer"; + clocks = <&rcc CK_BUS_LTDC>, <&rcc CK_KER_LTDC>; + lcd-supply = <®_3v3>; + status = "disabled"; + }; + }; + + leds { + compatible = "gpio-leds"; + + led-0 { + gpios = <&gpioh 2 GPIO_ACTIVE_HIGH>; + default-state = "off"; + status = "okay"; + }; + + led-1 { + gpios = <&gpioh 6 GPIO_ACTIVE_HIGH>; + default-state = "off"; + status = "okay"; + }; + }; + + mclk: clock-mclk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <24000000>; + }; + + reg_1v8: regulator-1v8 { + compatible = "regulator-fixed"; + regulator-name = "1v8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; + + reg_3v3: regulator-3v3 { + compatible = "regulator-fixed"; + regulator-name = "3v3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + + reg_ext_pwr: regulator-ext-pwr { + compatible = "regulator-fixed"; + regulator-name = "ext-pwr"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + gpio = <&gpiog 0 GPIO_ACTIVE_HIGH>; + enable-active-high; + regulator-always-on; + }; + + sound { + compatible = "audio-graph-card"; + label = "STM32MP25-RMM"; + widgets = "Headphone", "Headphone Jack", + "Microphone", "Microphone Jack"; + routing = "Headphone Jack", "HP_OUT", + "MIC_IN", "Microphone Jack", + "Microphone Jack", "Mic Bias"; + dais = <&sai1a_port &sai1b_port>; + status = "okay"; + }; +}; + +&arm_wdt { + timeout-sec = <32>; + status = "okay"; +}; + +&i2c1 { + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&i2c1_pins_a>; + pinctrl-1 = <&i2c1_sleep_pins_a>; + i2c-scl-rising-time-ns = <185>; + i2c-scl-falling-time-ns = <20>; + status = "okay"; + /* spare dmas for other usage */ + /delete-property/dmas; + /delete-property/dma-names; + + touchscreen@38 { + compatible = "edt,edt-ft5306"; + reg = <0x38>; + interrupt-parent = <&gpiob>; + interrupts = <0 IRQ_TYPE_EDGE_FALLING>; + reset-gpios = <&gpiod 1 GPIO_ACTIVE_LOW>; + touchscreen-size-x = <480>; + touchscreen-size-y = <854>; + }; +}; + +&i2c2 { + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&i2c2_pins_a>; + pinctrl-1 = <&i2c2_sleep_pins_a>; + i2c-scl-rising-time-ns = <185>; + i2c-scl-falling-time-ns = <20>; + status = "okay"; + /* spare dmas for other usage */ + /delete-property/dmas; + /delete-property/dma-names; + + sgtl5000: codec@a { + compatible = "fsl,sgtl5000"; + reg = <0x0a>; + #sound-dai-cells = <0>; + clocks = <&mclk>; + + VDDA-supply = <®_3v3>; + VDDIO-supply = <®_3v3>; + VDDD-supply = <®_1v8>; + + sgtl5000_port: port { + #address-cells = <1>; + #size-cells = <0>; + + sgtl5000_tx_endpoint: endpoint@0 { + reg = <0>; + remote-endpoint = <&sai1a_endpoint>; + frame-master = <&sgtl5000_tx_endpoint>; + bitclock-master = <&sgtl5000_tx_endpoint>; + }; + + sgtl5000_rx_endpoint: endpoint@1 { + reg = <1>; + remote-endpoint = <&sai1b_endpoint>; + frame-master = <&sgtl5000_rx_endpoint>; + bitclock-master = <&sgtl5000_rx_endpoint>; + }; + }; + }; +}; + +<dc { + pinctrl-names = "default", "sleep"; + pinctrl-0 = <<dc_pins_a>; + pinctrl-1 = <<dc_sleep_pins_a>; + status = "okay"; + + port { + ltdc_out: endpoint { + remote-endpoint = <&panel_in>; + }; + }; +}; + +&m_can1 { + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&m_can1_pins_a>; + pinctrl-1 = <&m_can1_sleep_pins_a>; + status = "okay"; +}; + +&sai1 { + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&sai1a_pins_a>, <&sai1b_pins_a>; + pinctrl-1 = <&sai1a_sleep_pins_a>, <&sai1b_sleep_pins_a>; + status = "okay"; +}; + +&sai1a { + dma-names = "tx"; + status = "okay"; + + sai1a_port: port { + sai1a_endpoint: endpoint { + remote-endpoint = <&sgtl5000_tx_endpoint>; + dai-format = "i2s"; + mclk-fs = <512>; + }; + }; +}; + +&sai1b { + dma-names = "rx"; + st,sync = <&sai1a 2>; + clocks = <&rcc CK_KER_SAI1>; + clock-names = "sai_ck"; + status = "okay"; + + sai1b_port: port { + sai1b_endpoint: endpoint { + remote-endpoint = <&sgtl5000_rx_endpoint>; + dai-format = "i2s"; + mclk-fs = <512>; + }; + }; +}; + +/* MicroSD */ +&sdmmc1 { + pinctrl-names = "default", "opendrain", "sleep"; + pinctrl-0 = <&sdmmc1_b4_pins_a>; + pinctrl-1 = <&sdmmc1_b4_od_pins_a>; + pinctrl-2 = <&sdmmc1_b4_sleep_pins_a>; + broken-cd; + disable-wp; + st,neg-edge; + bus-width = <4>; + vmmc-supply = <&scmi_v3v3>; + vqmmc-supply = <&scmi_vddio1>; + no-1-8-v; + status = "okay"; +}; + +&spi1 { + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&spi1_pins_a>; + pinctrl-1 = <&spi1_sleep_pins_a>; + #address-cells = <1>; + #size-cells = <0>; + cs-gpios = <&gpioh 8 GPIO_ACTIVE_LOW>, <&gpioh 3 GPIO_ACTIVE_HIGH>; + status = "okay"; + + display: display@0 { + compatible = "rocktech,rk050hr345-ct106a", "ilitek,ili9806e"; + reg = <0>; + vdd-supply = <®_3v3>; + spi-max-frequency = <10000000>; + reset-gpios = <&gpiob 6 GPIO_ACTIVE_LOW>; + backlight = <&backlight>; + + port { + panel_in: endpoint { + remote-endpoint = <<dc_out>; + }; + }; + }; +}; + +&timers2 { + status = "okay"; + + pwm2: pwm { + pinctrl-0 = <&pwm2_pins_a>; + pinctrl-1 = <&pwm2_sleep_pins_a>; + pinctrl-names = "default", "sleep"; + status = "okay"; + }; +}; + +&timers4 { + status = "okay"; + + pwm4: pwm { + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&pwm4_pins_a>; + pinctrl-1 = <&pwm4_sleep_pins_a>; + status = "okay"; + }; +}; + +&usart1 { + pinctrl-names = "default", "idle", "sleep"; + pinctrl-0 = <&usart1_pins_b>; + pinctrl-1 = <&usart1_idle_pins_b>; + pinctrl-2 = <&usart1_sleep_pins_b>; + /delete-property/ dmas; + /delete-property/ dma-names; + status = "okay"; +}; + +&usart2 { + pinctrl-names = "default", "idle", "sleep"; + pinctrl-0 = <&usart2_pins_a>; + pinctrl-1 = <&usart2_idle_pins_a>; + pinctrl-2 = <&usart2_sleep_pins_a>; + /delete-property/ dmas; + /delete-property/ dma-names; + status = "okay"; +}; -- 2.43.0