From patchwork Mon Jul 17 10:32:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bhupesh Sharma X-Patchwork-Id: 703836 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4C822C0015E for ; Mon, 17 Jul 2023 10:33:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231325AbjGQKdx (ORCPT ); Mon, 17 Jul 2023 06:33:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42946 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230511AbjGQKdf (ORCPT ); Mon, 17 Jul 2023 06:33:35 -0400 Received: from mail-pl1-x633.google.com (mail-pl1-x633.google.com [IPv6:2607:f8b0:4864:20::633]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 643921BD9 for ; Mon, 17 Jul 2023 03:33:15 -0700 (PDT) Received: by mail-pl1-x633.google.com with SMTP id d9443c01a7336-1bb119be881so27832555ad.3 for ; Mon, 17 Jul 2023 03:33:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1689589992; x=1692181992; 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=aoaxiWdRTQIjlpKBPFLmbhlJ2o+zAdh4av4kyochmEo=; b=g519a+G7tOuP5AGM99e4AMmxik1Mq8hK7gBhqN7FfI+fi/u8RiwEdZteCyakYGYPp6 LSJRF5Km6sXgyIAlc90wqM1qSPKCKc+H3LTr9jpdfZwmbJEbEka5ynRujS7NNNEB1CoS WHVeD8s+JTtarzKaGi2LDeJU8uJKCpuRSm9DJp142XsIcjzRrRByl9XNuIlqcYjHLsSI w8EoI4s1yeYtJRXOsfuf3TyVwtvx8DNZhLTifve1u6pdFo+iv8eD02apBZJqGs4Bedkk OGkhqV1yml1BoYdBsrB8DRKy9k7pjQH+j+nacouB8lEz7suiSGB2L70kIZ1ouOXOgALy ITPw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689589992; x=1692181992; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=aoaxiWdRTQIjlpKBPFLmbhlJ2o+zAdh4av4kyochmEo=; b=GBgM4HLW4d31dRpseXCqyT9rNyxi52WB4M2JaFiVKfAK4Rsg+OamC2D3l/1EmgctCQ dnDrRQSZ1STo0qhS9/ma/LSjzf8hsT+tZB2RHudi8zVUB2k2JxQzgvFXplroZf3kh6ct CqI18De/Qq3+VfcqhTjPmL9wi3IF/9w2ZTxWmZhe7rb+ldKUzo//El/zkD9AIewzaVWF nGG1zqOZfmeswFIA23UaQ10v0A3ugJXzz36ujLJ+vJmJxEj3qaGDnaUvUnIx4/JsQ8kw 0L4iirkFFgcpA86iQNIae6Fl9ask0rlaNPyYkX6VCPxd4Kei3ft3ajsJLfxadHMhXYYE EXpA== X-Gm-Message-State: ABy/qLaeeBBhJgcCqXzjcNExajO3Ir161AnCf56MpABBlVkGRN6cfp5u whb9YkYEpQYsHK9vu3cU51HnBw== X-Google-Smtp-Source: APBJJlGxjHTy27oHzebTb158x0c33RIuQvSDpQ/GYL/rSpU/c05I0WJAE/sHlYsRZQIMLM7KbWO+Tg== X-Received: by 2002:a17:902:9347:b0:1b8:a12e:d655 with SMTP id g7-20020a170902934700b001b8a12ed655mr1968934plp.11.1689589991826; Mon, 17 Jul 2023 03:33:11 -0700 (PDT) Received: from localhost.localdomain ([223.233.68.54]) by smtp.gmail.com with ESMTPSA id ij9-20020a170902ab4900b001b9de67285dsm12633616plb.156.2023.07.17.03.33.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Jul 2023 03:33:11 -0700 (PDT) From: Bhupesh Sharma To: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-usb@vger.kernel.org Cc: agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org, linux-kernel@vger.kernel.org, bhupesh.linux@gmail.com, bhupesh.sharma@linaro.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, krzysztof.kozlowski@linaro.org, quic_schowdhu@quicinc.com, gregkh@linuxfoundation.org Subject: [PATCH v8 4/4] arm64: dts: qcom: qrb4210-rb2: Enable EUD debug peripheral Date: Mon, 17 Jul 2023 16:02:36 +0530 Message-Id: <20230717103236.1246771-5-bhupesh.sharma@linaro.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230717103236.1246771-1-bhupesh.sharma@linaro.org> References: <20230717103236.1246771-1-bhupesh.sharma@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Since the USB-C type port on the Qualcomm QRB4210-RB2 board can be set primarily in a 'device' configuration (with the default DIP switch settings), it makes sense to enable the EUD debug peripheral on the board by default by setting the USB 'dr_mode' property as 'otg'. Now, the EUD debug peripheral can be enabled by executing: $ echo 1 > /sys/bus/platform/drivers/qcom_eud/1610000.eud/enable Reviewed-by: Konrad Dybcio Signed-off-by: Bhupesh Sharma --- arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 27 +++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts index a7278a9472ed9..640668960deb0 100644 --- a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts +++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts @@ -264,6 +264,10 @@ &pon_resin { status = "okay"; }; +&eud { + status = "okay"; +}; + &qupv3_id_0 { status = "okay"; }; @@ -518,7 +522,28 @@ &usb { &usb_dwc3 { maximum-speed = "super-speed"; - dr_mode = "peripheral"; + + /* + * There is only one USB DWC3 controller on QRB4210 board and it is connected + * via a DIP Switch: + * - to either an USB - C type connector or an USB - A type connector + * (via a GL3590-S hub), and + * - to either an USB - A type connector (via a GL3590-S hub) or a connector + * for further connection with a mezzanine board. + * + * All of the above hardware muxes would allow us to hook things up in + * different ways to some potential benefit for static configurations (for e.g. + * on one hand we can have two USB - A type connectors and a USB - Ethernet + * connection available and on the other we can use the USB - C type in + * peripheral mode). + * + * Note that since the USB - C type can be used only in peripehral mode, + * so hardcoding the mode to 'peripheral' here makes sense. + * + * However since we want to use the EUD debug device, we set the mode as + * 'otg' here. + */ + dr_mode = "otg"; }; &usb_hsphy {