From patchwork Thu May 4 08:26:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bhupesh Sharma X-Patchwork-Id: 13230935 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 DE085C77B7C for ; Thu, 4 May 2023 08:31:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230385AbjEDIa6 (ORCPT ); Thu, 4 May 2023 04:30:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38184 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230096AbjEDIaZ (ORCPT ); Thu, 4 May 2023 04:30:25 -0400 Received: from mail-pf1-x436.google.com (mail-pf1-x436.google.com [IPv6:2607:f8b0:4864:20::436]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C62A765B3 for ; Thu, 4 May 2023 01:27:32 -0700 (PDT) Received: by mail-pf1-x436.google.com with SMTP id d2e1a72fcca58-6434440970fso293110b3a.2 for ; Thu, 04 May 2023 01:27:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1683188851; x=1685780851; 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=fz6g2/625qlFmhiR93VnIJ+EVOsf12tbuuuDirZwZ9U=; b=uh/cVkAvbCAQeNz+eFz44pqdjg9k5CWL5VqL1bx9HCYSnp54SVpjfh+R89DQ3unScf saWw0OzTNf3ReNCe4N6JqvMpOxFz5ATlmbMkuYTWgnHHzAYfdUL+A3KKAOFOAOR/DE7f 1PT6V6GD0pxlBsO6yDgIiO7UM+33qmlscNyrseKXanMfXdvJCox4Qvyqy5/7WIDobQ9P 8MMPZvhLdmas2kEuxJwqjufeFWPC7iDi7nx0meJab/Zy6+6NYLtZr/1uqUX9lv7zcPlC 1i7U1iIIJ7ylSMdxDWz4xRQBCDATihGJr85QSD81mMELTbvY/oYX3oXJWRv24m2SETBQ ed5w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683188851; x=1685780851; 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=fz6g2/625qlFmhiR93VnIJ+EVOsf12tbuuuDirZwZ9U=; b=JrE1LmDKH7frgPdytgWOhNttSUyibYvfr3ZV28rw6WEeAIAauaXXZSaQC9Rg3ex1b7 oKV554Qs5zoVQj0z03E7Why8BElpgG8It03vHPRvGV1JuQxTuqwaeJ4UBbaobe/DBiD2 SSJmWOrjioBbAHmCakK3copQ+PQNjbVaF0dksrN/C1y38tE0bTVMaDmNf6QMkSYdKXQI VltqZ//xBewZJBVw+Vjsz7QFAfB02kQNcPXn/QqNO/T1kEoFLHNGuDE49dF84AUZ6BMd SiGu/eUkjnxZwGSSgFH7RUqHv0zKjsFutek5nB72pOkrz4yl59iofMiI+exUO/v0My1b 4cjA== X-Gm-Message-State: AC+VfDxZY2CsanCNXXzRLrXbkeWSR+9fVJb5Yut5IEdPTxFT26tFDvzI f4pktecfiUhxSEzfmBt5d6HfUw== X-Google-Smtp-Source: ACHHUZ5pJk4+pL/gurW2SaGLZq20EkbWIIas0Rnxk/sNmRNhNANYG/Q7F0Ky1Z8TEduY/ecGWla3qQ== X-Received: by 2002:a05:6a00:b86:b0:63d:3a18:4a03 with SMTP id g6-20020a056a000b8600b0063d3a184a03mr1878881pfj.5.1683188851588; Thu, 04 May 2023 01:27:31 -0700 (PDT) Received: from localhost.localdomain ([223.233.65.180]) by smtp.gmail.com with ESMTPSA id s1-20020a056a00178100b00625d84a0194sm24913973pfg.107.2023.05.04.01.27.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 May 2023 01:27:31 -0700 (PDT) From: Bhupesh Sharma To: linux-arm-msm@vger.kernel.org, devicetree@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, linux-usb@vger.kernel.org, krzysztof.kozlowski+dt@linaro.org, krzysztof.kozlowski@linaro.org Subject: [PATCH v3 5/5] arm64: dts: qcom: qrb4210-rb2: Enable EUD debug peripheral Date: Thu, 4 May 2023 13:56:44 +0530 Message-Id: <20230504082644.1461582-6-bhupesh.sharma@linaro.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230504082644.1461582-1-bhupesh.sharma@linaro.org> References: <20230504082644.1461582-1-bhupesh.sharma@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@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 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 {