From patchwork Wed May 17 21:17:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bhupesh Sharma X-Patchwork-Id: 683104 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 D4115C7EE2A for ; Wed, 17 May 2023 21:19:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230203AbjEQVT2 (ORCPT ); Wed, 17 May 2023 17:19:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58594 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230096AbjEQVTQ (ORCPT ); Wed, 17 May 2023 17:19:16 -0400 Received: from mail-pf1-x42c.google.com (mail-pf1-x42c.google.com [IPv6:2607:f8b0:4864:20::42c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2A755D2ED for ; Wed, 17 May 2023 14:18:58 -0700 (PDT) Received: by mail-pf1-x42c.google.com with SMTP id d2e1a72fcca58-64354231003so376562b3a.0 for ; Wed, 17 May 2023 14:18:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1684358316; x=1686950316; 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=nsC+YIR9GPviDXHSlkV5AONTmzt9XmYN5GUXlOjFZyw=; b=mLEnL4+900Y3v1EqzSKYSJxW7S1yg/ELTQklPqGBcRBmawcubhgNP+sNXAvPz5XNQZ bzYl/HCY0Gj0DjZz+yT+WpWJqnVxfV3I19QTXwM0TPs36dZnrb/kF1uLJuBQMC7ho3yw D1VKf+c0humm1eT7OVArCXHOWmozEY2C4uwlCqgpNpe/JaziXFyfnlJchrdZ5pCFgSdQ PSvtFyKcpeq4GUJctxBrsUFZYnWtuNtlXDM/uWayPRI1dDFGYaZywPPGal1mPWBz471K ojUvE7j/m7OK1Hd3955o538yns9ywuFX4wL36FXlP6CP49dHP2T+PA4pRMEkg4HDfm2N Q7bg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684358316; x=1686950316; 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=nsC+YIR9GPviDXHSlkV5AONTmzt9XmYN5GUXlOjFZyw=; b=DnLn6kwrMnIKcucjN3/BnO9Mnhr1EvgQWfg+WKD0BYhxEX0j6O1dAN8Zvz32M1rmmX alXEpdOe/n7kjf2Zytr92NfadK77yzu62vc/3JvJu3Qg2h88pvxeeigS/eg2hzyEsFR0 Q8YAlE3c9Uo4fyxw2cY6xQsEWMSW5bLkIq74A/YGJLTtcpk+WohCmsTxie7wJR9KMgDV npV2lt7k7OzNvkR2nrX1RV4sA4gfEvVRh1CMM/WGA7dqpW2Ezq/vBSRq6lW3AjHhgHs6 AeUm6paKAJD64BYoNtSOToZ+wvSrO54sGCL2lNUJriVaFAKD2wAZ0P8zbNWwOdKSp8ST Maqw== X-Gm-Message-State: AC+VfDzot+8BahoqLPTXlc+1JhqsYIJcUsm2Z8JdQZTm2Cp+5lEcxzqm GUL2zC4y2QFB7ZxNjzJivOOhaw== X-Google-Smtp-Source: ACHHUZ7ZROYmKec5DJ3xETJ6t99Gy8RZhTD5iWOnz0B+vLWZcQYsGJlm6hN9VNbIaLXHbMbdKvjBVQ== X-Received: by 2002:aa7:8882:0:b0:63b:54e4:871b with SMTP id z2-20020aa78882000000b0063b54e4871bmr778781pfe.8.1684358316360; Wed, 17 May 2023 14:18:36 -0700 (PDT) Received: from localhost.localdomain ([2401:4900:1c60:6bed:7a51:340a:a439:1b87]) by smtp.gmail.com with ESMTPSA id n18-20020aa79052000000b0064cb6206463sm4359210pfo.85.2023.05.17.14.18.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 17 May 2023 14:18:36 -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 v6 6/6] arm64: dts: qcom: qrb4210-rb2: Enable EUD debug peripheral Date: Thu, 18 May 2023 02:47:56 +0530 Message-Id: <20230517211756.2483552-7-bhupesh.sharma@linaro.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230517211756.2483552-1-bhupesh.sharma@linaro.org> References: <20230517211756.2483552-1-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 1a0776a0cfd0..0ce72f1ebc10 100644 --- a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts +++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts @@ -30,6 +30,10 @@ vph_pwr: vph-pwr-regulator { }; }; +&eud { + status = "okay"; +}; + &qupv3_id_0 { status = "okay"; }; @@ -253,7 +257,28 @@ &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 {