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=-8.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_GIT autolearn=ham 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 C7CB3C43381 for ; Thu, 21 Feb 2019 15:47:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 98BF820823 for ; Thu, 21 Feb 2019 15:47:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="qOmahZvN" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728556AbfBUPrC (ORCPT ); Thu, 21 Feb 2019 10:47:02 -0500 Received: from mail-wr1-f66.google.com ([209.85.221.66]:38959 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726109AbfBUPqk (ORCPT ); Thu, 21 Feb 2019 10:46:40 -0500 Received: by mail-wr1-f66.google.com with SMTP id l5so30046042wrw.6; Thu, 21 Feb 2019 07:46:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Zr9ZMCK/RIEsVShfTL9vZ/oRXnYMetMaqCj88B2pMXk=; b=qOmahZvNTdBR6w48h6n7PD4d1HPzdsS2E495/2PhFthU2JnaRnP3FEqq0e+hREohos AZzmyCxYWh5m5479GW4axtCFXF1ktAJJFNwVx8VNqbtRqZLYSsb1zx8KKQYt0YoP2exG dsI9tzS//DZCwiOteFcoOomfq8kU1MNiFTygCa9mpNZf1KZbxNHbjSmOEDgvl/y54qff +Sw+SOufvMPD+XJZHof6wCYMV2/tpEUMGt4vHKaNfW0cpSL1CS47PDphs9zNHniPCI8W WuLxJ8uKP2c+ZhwfDuD5oX7cBTrsQmzRvq4FQS2d6dq+jPp2yQw5N18DLM/2dc3J9kiz MIiA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Zr9ZMCK/RIEsVShfTL9vZ/oRXnYMetMaqCj88B2pMXk=; b=s0HqAnjFWsN6b97270ktOiVzspKiWQavbBsJB7OW49akHmi0dMIai/x+eJtQUUTizD GMRvn4Cor/nznsr19vYNx87pfBrt1FleBuvOu53876sfC201CsukbbtoloX+c57J68UN Lgk8A6NUkucO+1zCxsJF9+uvVxj7gWhK37v4Ud6yYM0J5UCib6JmMZu6EpROladzKFcW ul3QKRw+FphBLm+tRoMCBb8oe8NDFaSFPkdDrJfdmkIb/+Q9g8V9qgMMVIhIy+3cSfuZ VcPN96oxTD4hBrOUmLHmh/bzXAvYoHU4gKuxiI7P4PN61aC6ZAe9Uz7goNStCf2MmLsr x7ig== X-Gm-Message-State: AHQUAuYYeypWI+NA7WDjkXlxYl4CjPAudu7a/j8uL3FWv+SDGXnmB03z gKACLFOfSYGJNyqhPGIo5Wg= X-Google-Smtp-Source: AHgI3IbEGJ4tqn4YTCwDC05sh3790FkAVP2kf7ZimbIgUtTTsZwCP8IYq4p2d0XzyL1XTevNscqyvw== X-Received: by 2002:a5d:6a88:: with SMTP id s8mr27002109wru.303.1550763999196; Thu, 21 Feb 2019 07:46:39 -0800 (PST) Received: from localhost (pD9E51D2D.dip0.t-ipconnect.de. [217.229.29.45]) by smtp.gmail.com with ESMTPSA id a144sm12653366wmd.30.2019.02.21.07.46.38 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 21 Feb 2019 07:46:38 -0800 (PST) From: Thierry Reding To: Kishon Vijay Abraham I Cc: Jonathan Hunter , JC Kuo , linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 2/5] phy: tegra: xusb: Skip single function lane programming Date: Thu, 21 Feb 2019 16:46:31 +0100 Message-Id: <20190221154634.10684-3-thierry.reding@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190221154634.10684-1-thierry.reding@gmail.com> References: <20190221154634.10684-1-thierry.reding@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: JC Kuo Tegra186 USB2 pads and USB3 pads do not have hardware mux for changing the pad function. For such "lanes", we can skip the lane mux register programming. Signed-off-by: JC Kuo Signed-off-by: Thierry Reding --- drivers/phy/tegra/xusb.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/phy/tegra/xusb.c b/drivers/phy/tegra/xusb.c index 5b3b8863363e..e3bc60cfe6a1 100644 --- a/drivers/phy/tegra/xusb.c +++ b/drivers/phy/tegra/xusb.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2014-2015, NVIDIA CORPORATION. All rights reserved. + * Copyright (c) 2014-2016, NVIDIA CORPORATION. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, @@ -313,6 +313,10 @@ static void tegra_xusb_lane_program(struct tegra_xusb_lane *lane) const struct tegra_xusb_lane_soc *soc = lane->soc; u32 value; + /* skip single function lanes */ + if (soc->num_funcs < 2) + return; + /* choose function */ value = padctl_readl(padctl, soc->offset); value &= ~(soc->mask << soc->shift); -- 2.20.1