From patchwork Tue May 16 21:33:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bhupesh Sharma X-Patchwork-Id: 682665 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 8EE01C7EE23 for ; Tue, 16 May 2023 21:33:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229638AbjEPVdv (ORCPT ); Tue, 16 May 2023 17:33:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50596 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231201AbjEPVdq (ORCPT ); Tue, 16 May 2023 17:33:46 -0400 Received: from mail-pl1-x62a.google.com (mail-pl1-x62a.google.com [IPv6:2607:f8b0:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 86F568688 for ; Tue, 16 May 2023 14:33:39 -0700 (PDT) Received: by mail-pl1-x62a.google.com with SMTP id d9443c01a7336-1a516fb6523so1323125ad.3 for ; Tue, 16 May 2023 14:33:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1684272819; x=1686864819; 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=ZZAtXnRcvSPrSEfi+gIeXts/W17mQkTypLqlqCgL3DrfBC4wWWrre1Cm9zxo6reLik mwSrMoqKdOMAbB81imJh0BP4jvGzTg4b4hKoU3sGXdzoJw1Obj3pmx6lcuuqPzX+7kfq pnu9jsIeAXEig2PqEb2RM5mfJBwWSP40sZUP6sDI0lGT5Q1VSSuMbEOKLO8LaKWIlwAE SL6AX1YrZqbXOgLxtsc6b388WKqTAY97QaOvteb1bWvWxJnQTWSuLEGKiN1GKCO18fUO 6+PhNh1sNC/1VhsgS087Uo1KrfvAlGWq/xZlQqLUma10dE98gsBemkwScMoFODZKFpK2 iURA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684272819; x=1686864819; 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=fTfCeIwuYHZi5Z3HB3BnsCfVkA95MIXQwc7oBUyon3rABIi744HzpFMVo138PA//3j QMmvAz/FY88npPHnkI885zugUS7VMQo3WCFroeAzn+83F8W1Dl+GorDBucAdM/1CtmUT GDcbZspesJPZgBFJvgz52ux3MFGmobLy8lbtJJpQRzpu3TfJOvaeVrlY/P6Bsg/fd6k8 8BU7u0i+okkv0dmjLOj19kw61FirDAdynFs+5K/pIoJh6VlDkJvNKIXLhmqMQ3Sc4CG/ uM5VRIPTjcbhfTO16rpc1c9oTlc/6wlVSDc6KpSTlRFe9c4OBWBmbyVKoTyiHvVbymWp SGEw== X-Gm-Message-State: AC+VfDzwkY7YW24G6foh3tC3VX8OLkx9qXGHtnkvvwqrVtK855gte0lA wf67UZtji28Q1vEuTmnyDI+DoYv23FcKPG6Hpgo= X-Google-Smtp-Source: ACHHUZ69C7YAPTQyIbUMSWPhfb0m0H1P8wr47rkB8sFXjt1r68NoVWqFIhwsKTO9qahORlFircF6Vg== X-Received: by 2002:a17:902:cec9:b0:19a:a9d8:e47f with SMTP id d9-20020a170902cec900b0019aa9d8e47fmr54913536plg.36.1684272819027; Tue, 16 May 2023 14:33:39 -0700 (PDT) Received: from localhost.localdomain ([2401:4900:1c60:6bed:7a51:340a:a439:1b87]) by smtp.gmail.com with ESMTPSA id jh19-20020a170903329300b001ac7af57fd4sm16027676plb.86.2023.05.16.14.33.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 May 2023 14:33:38 -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 Subject: [PATCH v5 5/5] arm64: dts: qcom: qrb4210-rb2: Enable EUD debug peripheral Date: Wed, 17 May 2023 03:03:08 +0530 Message-Id: <20230516213308.2432018-6-bhupesh.sharma@linaro.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230516213308.2432018-1-bhupesh.sharma@linaro.org> References: <20230516213308.2432018-1-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 {