From patchwork Thu Jul 27 15:03:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Olivier MOYSAN X-Patchwork-Id: 13330269 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 65F43C001E0 for ; Thu, 27 Jul 2023 15:07:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=KDxJhbf9ZXg/Tdfw0IiFdPJzu1EJYAnAmFH7y+aAGCE=; b=YMcIjJ2N50pteS 6DrfdlpFNo8tqrmOyzwDsaAwt4k74v0xySDwBDP5eT9kL06HfA9iOKBpmvwruSfR9SzrrEkqt4DUF NhCFI9r5EM+dGADMfTgpec5+rojedyhUTvJ/XCd/EpgZUHV2ssa7gU1TGt/O0qiSMfuoBEUBIAxgn ASHoofxourd8Vyn3FcK6/J4PN1+wXG7Jf9+2g/PgDmOOldhYrUjG7NJI0R2kBNL/T2eCOi8ykaCx8 yXLwp1EOds3bYyaGJv1nB8yKnnGeyv/n4ecyYn7VFIuC5sH2lthkGNvZZqwRRPGRG+XgAW/QwA3F4 I96KfQ907O/u1pRSK/MQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qP2a7-00Fdty-2Z; Thu, 27 Jul 2023 15:07:11 +0000 Received: from mx08-00178001.pphosted.com ([91.207.212.93] helo=mx07-00178001.pphosted.com) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qP2Zw-00Fdl8-34 for linux-arm-kernel@lists.infradead.org; Thu, 27 Jul 2023 15:07:02 +0000 Received: from pps.filterd (m0046660.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 36RF3OLG027833; Thu, 27 Jul 2023 17:06:51 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=selector1; bh=8kootPtuej1akXRgIZj40uYTNZjB/maQQhJwmvSicyU=; b=ukz8m6iJxzBb3Iryqt8KSx1TdcAXmPHXaXAnow3s4oMHhq4vyctKF8FRhPUc4weEnZhr egQPpPvzivCZQdhWOlR3B5ND4PUcUisSUzgcXbiqcgjrTsIrQqp0n29/5csw44YzeuxF j7pfEXdLbd6Aqe1AYrMCS5TL2WZZt5LBXmVc/loMIrsiLUCQzy1tUTwC2c73GcKMVLBN C2qzboWQ9hKtk6i2PRzkbCGsMgHkw1FxsTEvFFsCbMLnSV88fNJhMtMYpXhAYsBU/29X FCwJ3HesQuO9tQzkvATT1ZfzeTAQ6qXls61BSH75XYf0F/8TQ/tPA/Y6lnf/2RtTLZNB lQ== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3s3kn2b2b8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 27 Jul 2023 17:06:51 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 6E06D100049; Thu, 27 Jul 2023 17:06:50 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 65852209BA8; Thu, 27 Jul 2023 17:06:50 +0200 (CEST) Received: from localhost (10.201.20.178) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Thu, 27 Jul 2023 17:06:50 +0200 From: Olivier Moysan To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Coquelin , Alexandre Torgue CC: Olivier Moysan , , , , Subject: [RFC v2 11/11] ARM: dts: stm32: add dfsdm iio support on stm32mp157c-ev Date: Thu, 27 Jul 2023 17:03:22 +0200 Message-ID: <20230727150324.1157933-12-olivier.moysan@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230727150324.1157933-1-olivier.moysan@foss.st.com> References: <20230727150324.1157933-1-olivier.moysan@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.201.20.178] X-ClientProxiedBy: EQNCAS1NODE3.st.com (10.75.129.80) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-27_07,2023-07-26_01,2023-05-22_02 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230727_080701_269689_69CB13DA X-CRM114-Status: GOOD ( 15.52 ) 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 This DT is an example of backend iio device used for STM32 DFSDM. DFSDM filter1 has a single input channel, while filter0 is configured to support scan mode with two input channels. Signed-off-by: Olivier Moysan --- arch/arm/boot/dts/st/stm32mp157c-ev1.dts | 68 ++++++++++++++++++++++++ 1 file changed, 68 insertions(+) diff --git a/arch/arm/boot/dts/st/stm32mp157c-ev1.dts b/arch/arm/boot/dts/st/stm32mp157c-ev1.dts index af3800501875..edeac26f39a4 100644 --- a/arch/arm/boot/dts/st/stm32mp157c-ev1.dts +++ b/arch/arm/boot/dts/st/stm32mp157c-ev1.dts @@ -73,6 +73,27 @@ panel_backlight: panel-backlight { default-on; status = "okay"; }; + + sd_adc0: sd-adc0 { + compatible = "sd-modulator"; + #io-backend-cells = <0>; + vref-supply = <&v3v3>; + status = "okay"; + }; + + sd_adc1: sd-adc1 { + compatible = "sd-modulator"; + #io-backend-cells = <0>; + vref-supply = <&v3v3>; + status = "okay"; + }; + + sd_adc2: sd-adc2 { + compatible = "sd-modulator"; + #io-backend-cells = <0>; + vref-supply = <&v3v3>; + status = "okay"; + }; }; &cec { @@ -99,6 +120,53 @@ dcmi_0: endpoint { }; }; +&dfsdm { + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&dfsdm_clkout_pins_a + &dfsdm_data1_pins_a &dfsdm_data3_pins_a>; + pinctrl-1 = <&dfsdm_clkout_sleep_pins_a + &dfsdm_data1_sleep_pins_a &dfsdm_data3_sleep_pins_a>; + spi-max-frequency = <2048000>; + status = "okay"; + + dfsdm0: filter@0 { + compatible = "st,stm32-dfsdm-adc"; + st,filter-order = <3>; + status = "okay"; + + channel@0 { + reg = <0>; + label = "in0"; + st,adc-channel-types = "SPI_F"; + st,adc-channel-clk-src = "CLKOUT"; + st,adc-alt-channel; + io-backends = <&sd_adc0>; + }; + + channel@1 { + reg = <1>; + label = "in1"; + st,adc-channel-types = "SPI_R"; + st,adc-channel-clk-src = "CLKOUT"; + io-backends = <&sd_adc1>; + }; + }; + + dfsdm1: filter@1 { + compatible = "st,stm32-dfsdm-adc"; + st,filter-order = <3>; + status = "okay"; + + channel@3 { + reg = <3>; + label = "in3"; + st,adc-channel-types = "SPI_R"; + st,adc-channel-clk-src = "CLKOUT"; + io-backends = <&sd_adc2>; + }; + }; +}; + &dsi { phy-dsi-supply = <®18>; #address-cells = <1>;