From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8A76CC43461 for ; Tue, 15 Sep 2020 22:33:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 48B3E20809 for ; Tue, 15 Sep 2020 22:33:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Ln7C0LzI" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727648AbgIOWdL (ORCPT ); Tue, 15 Sep 2020 18:33:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50812 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727576AbgIOQRP (ORCPT ); Tue, 15 Sep 2020 12:17:15 -0400 Received: from mail-lj1-x241.google.com (mail-lj1-x241.google.com [IPv6:2a00:1450:4864:20::241]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0587FC061A30; Tue, 15 Sep 2020 09:15:14 -0700 (PDT) Received: by mail-lj1-x241.google.com with SMTP id u21so3341739ljl.6; Tue, 15 Sep 2020 09:15:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=oDmwZqV69ONfDlP5WkAsuibEHA5OimwIA2UcgWGM9tY=; b=Ln7C0LzIknZfvK3onMWkZDezxGy8+BvyqOBTBe4pH7X5j6N6dbeSEetYtfct3AY9Te 3r3dV/KOffGDN7VNdsIfTTS4vyWiLTcI/vRm3C06lx4Vq171QMVBhMNva9Wa7YWBB44i QRGSf/QrFsV7RjhihAqcpcA6pLQ0pmOCoNmWYjiAat1QkeK7T6bhcp4rUEpfz1ebpvdN EPm89o1fXcon8YhNLk+pLrXxgNhS5sXOLkcI/7BKQpSyCgMtuRy8xgqz/NCjWD8oYTjH mqNtJjasPPPPDR9krXG7oYR/ob2Smk01TgcTx7DiaLI0xuJtvWXzmK4x1IXumNKi6TR3 leGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=oDmwZqV69ONfDlP5WkAsuibEHA5OimwIA2UcgWGM9tY=; b=pWXcnr/82ipHC0n7Wm4g9oq9rs8PszkPqz3cJ6sXhHhCL5JKsze6LUXylLgaPq0IMk MgwS3pPr87/YLbof06lhNMMDrOxTk/obpnzKWwaTFfuG9fRj/auM/B4E+Fm9WDVdnpGD wWU203pIbBuzFeEq2J/Cx56B43feGc1ud+9jd44RyXwZPOtLuW23/1pnwxjOIHhcLgMs J7eeIQGlsJXeyOJ71lsaaH+Hm252tD6SUkt5gjIiLBEZZgEnN1Al7h/M/RAWlRaLCP+6 j1MIAX6cUOcOZYj9+3FGBwcVKgTQLM2dgFKWPAgHRhZYnlpSVJJdsNpJOCrwCToNu4xs sxZA== X-Gm-Message-State: AOAM5330isw+ZuuLW+6/bBsTzg/lPQtTyJcyRquIUTBXIZVlPVxDY5It /0/IDDYwbA5bhcRJKFv3H8zrCml+QzBFlA== X-Google-Smtp-Source: ABdhPJyRIxD4Fa1CsUoi3GwfVw9/SasDPCay69suX7DD07Z92Pf/ekdBRCTI1PWOOkU0Ucn5gVba9A== X-Received: by 2002:a2e:8616:: with SMTP id a22mr6595908lji.466.1600186512213; Tue, 15 Sep 2020 09:15:12 -0700 (PDT) Received: from wasted.omprussia.ru ([2a00:1fa0:42d3:da34:6ad8:5c64:8a52:942b]) by smtp.gmail.com with ESMTPSA id b141sm4076671lfd.236.2020.09.15.09.15.11 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 15 Sep 2020 09:15:11 -0700 (PDT) Subject: Re: [PATCH v3 2/3] dt-bindings: usb: cdns,usb3: Add cdns,phyrst-a-enable property To: Roger Quadros , balbi@kernel.org Cc: pawell@cadence.com, kurahul@cadence.com, nsekhar@ti.com, vigneshr@ti.com, robh+dt@kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org References: <20200915114543.2599-1-rogerq@ti.com> <20200915114543.2599-3-rogerq@ti.com> From: Sergei Shtylyov Message-ID: <1b45d695-0874-69c7-8398-5d14033f0788@gmail.com> Date: Tue, 15 Sep 2020 19:15:10 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <20200915114543.2599-3-rogerq@ti.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello! On 9/15/20 2:45 PM, Roger Quadros wrote: > Controller version 0x0002450D has USB2 PHY RX sensitivity issues > that needs to be worked around by enabling phyrst-a-enable bit > in PHYRST_CFG register. > > There is no way to know controller version before device controller > is started and the workaround needs to be applied for both host and > device modes, so we add this DT property. > > Signed-off-by: Roger Quadros > Acked-by: Rob Herring > --- > Documentation/devicetree/bindings/usb/cdns,usb3.yaml | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml > index 9b14c8443d39..ac20b98e9910 100644 > --- a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml > +++ b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml > @@ -61,6 +61,10 @@ properties: > buffers expressed in KB > $ref: /schemas/types.yaml#/definitions/uint32 > > + cdns,phyrst-a-enable: > + description: Enable resetting of PHY if Rx fail is detected Failure? [...] MBR, Sergei