From patchwork Tue Jul 11 20:35:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Halaney X-Patchwork-Id: 118715 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:a6b2:0:b0:3e4:2afc:c1 with SMTP id c18csp750520vqm; Tue, 11 Jul 2023 14:26:21 -0700 (PDT) X-Google-Smtp-Source: APBJJlGT6gufsCpjkbCrV6eB497GE0o4BPWDaQU7OYEOMwR08fGdq26F5YWbK439sR8IjHiu/101 X-Received: by 2002:adf:fcca:0:b0:315:9de4:92f0 with SMTP id f10-20020adffcca000000b003159de492f0mr6258451wrs.5.1689110781600; Tue, 11 Jul 2023 14:26:21 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1689110781; cv=none; d=google.com; s=arc-20160816; b=Jwzj4SUYkuK/4/TvjNlPKklxpaqg+i8sAmJWRefAYZ2YYTHntYMq6YKO/Bd1thEU47 y4axCWrL1aPhvoMn0QoiyiQqumB1llaku2EAyW6QPNqshxB5e8XlbsHaALYHw1ffuQey eLh8OjnFRNEi0o9EC8M2PRXCqV6cwmCKje7Dg+nkg4Legiwkj4p8h+QtML3vQt/8ykNb pYjRjbF6RQtt4Gq7fWDLPI81Wz8AbGBG2JoTwOj16WNc3i0oMMrZweGp/q++Mj+LOJYM eWVIBN1Jey7beyINIOQO1BH5//6+15hFeAC2cNiqAArAqwcAKkv/XlKnijO9VojPapfv wAAQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=CvuwAv+s14TExJvbO2C4lPkzFf4n3yORaiUFHM896h4=; fh=Wrx0eU9e8PjP+hpxVbWp9UHQJRv1Nm7z3/h6OVWHkvE=; b=hHGYR15FvUVc/C4TjsIWYPqaQ4yGjyhATp6FcNGNZkLqCXSbFLcQw+RJaKPr8LRmor Krb2ZUNpCS5flWNn2X+Nev2luP9vYAJwIuSDxglKY74yCg2cbtae5cFdgWG3exKCfkIE 1GgSrqS+n6B5l/+Rx0VgN5WDyE22GtKr2mJy6i1cThYxSebUHLQujmO63fNqLKK91t7G l6xqx/+Thq91lWwVZKstw036RRoQXSwt+9THPy4Jec8pDwmBuDNLYX1/iL0Xr3NSUeKS fo3F8gusVXM29FCqC3sZYKapN0o4oY8L0zlZ9p7P7uV8C+n82uVR1HtALXXmWKpGAQ4e sCOQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b="Y/Lgui9u"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id x18-20020aa7dad2000000b0051e1c968863si2797705eds.259.2023.07.11.14.25.57; Tue, 11 Jul 2023 14:26:21 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b="Y/Lgui9u"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231534AbjGKU7Z (ORCPT + 99 others); Tue, 11 Jul 2023 16:59:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56024 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229964AbjGKU7U (ORCPT ); Tue, 11 Jul 2023 16:59:20 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DE5861717 for ; Tue, 11 Jul 2023 13:58:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1689109113; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=CvuwAv+s14TExJvbO2C4lPkzFf4n3yORaiUFHM896h4=; b=Y/Lgui9ubJXF5nrKscGx5T/loLitvsNg7YdCyZpCHDpKZCCs4GxDBYFuipnf6TSdz/HW3v FblgTQggCJgk2xEpu7mkTuVSKr8WFuAQq4tLdg5HqHljpmzFWaGovPs4jSpB5ZMCjupr0n ncJSdRrME9O5A90a30Ipvw54LS2bg9E= Received: from mail-oo1-f70.google.com (mail-oo1-f70.google.com [209.85.161.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-647-DxIcTFoHPWiB8n97Hn9u2g-1; Tue, 11 Jul 2023 16:58:32 -0400 X-MC-Unique: DxIcTFoHPWiB8n97Hn9u2g-1 Received: by mail-oo1-f70.google.com with SMTP id 006d021491bc7-5667dddaa5cso3616678eaf.2 for ; Tue, 11 Jul 2023 13:58:31 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689109111; x=1691701111; 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=CvuwAv+s14TExJvbO2C4lPkzFf4n3yORaiUFHM896h4=; b=BDzmRirQZbNWY9OIHlMF2RKC0/0R3CS0MKih9+SDSo6ajG8Pp4H3xijqmCwkGjUUS9 KMNckmFD0wsfyQjqwj/cevRg3w7XBBtoDN1hjjsMANhgN6orbus2ThEb3k4mT3SmWryJ uWiFfMkA8Q8gtnQ6mNf8gyvPcMKXww3eocIrBiVfyVuNZnI+91AJE4kjJxyW6fNhEbm3 pz/EjRbHf0KzyC6HmX9VS2IviFjABT3HRDBS0mlQjt72gSAlo8nNInorJTMhGMaosMu0 CknXmWk7K4R1NANyqcht4RK4ay1VqUbKQNJUr13Jm/0DX81QwgjLWOiQcyuQ6rL8x5WU dokA== X-Gm-Message-State: ABy/qLZScGP5REX1IFuCxQUYQHzI8izeZE2Tpde9fkSbcp8h8ZkitUAJ w2H5KWRsy9CLFDsthnmoOky3TLKbUc3Ndzh4FxM7mL4ij5cSvHwC0vRgccnjNwd8NG9Er7KetYs glz2LQiCIVQzsTSebWUyc0LzPr31ND8/ewp5S07g9nBppkL4OxhKB5F4p7cIZl6BAQg4dkq4gIi HsUJSuo0K8 X-Received: by 2002:a05:6358:340b:b0:134:c4dc:2c4e with SMTP id h11-20020a056358340b00b00134c4dc2c4emr5573629rwd.23.1689109110832; Tue, 11 Jul 2023 13:58:30 -0700 (PDT) X-Received: by 2002:a05:6358:340b:b0:134:c4dc:2c4e with SMTP id h11-20020a056358340b00b00134c4dc2c4emr5573607rwd.23.1689109110337; Tue, 11 Jul 2023 13:58:30 -0700 (PDT) Received: from halaney-x13s.attlocal.net ([2600:1700:1ff0:d0e0::22]) by smtp.gmail.com with ESMTPSA id j136-20020a81928e000000b00545a08184cesm785353ywg.94.2023.07.11.13.58.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 11 Jul 2023 13:58:30 -0700 (PDT) From: Andrew Halaney To: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, netdev@vger.kernel.org, mcoquelin.stm32@gmail.com, pabeni@redhat.com, kuba@kernel.org, edumazet@google.com, davem@davemloft.net, joabreu@synopsys.com, alexandre.torgue@foss.st.com, peppe.cavallaro@st.com, bhupesh.sharma@linaro.org, vkoul@kernel.org, linux-arm-msm@vger.kernel.org, jsuraj@qti.qualcomm.com, Andrew Halaney Subject: [PATCH RFC/RFT net-next 3/3] net: stmmac: Use the max frequency possible for clk_ptp_ref Date: Tue, 11 Jul 2023 15:35:32 -0500 Message-ID: <20230711205732.364954-4-ahalaney@redhat.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230711205732.364954-1-ahalaney@redhat.com> References: <20230711205732.364954-1-ahalaney@redhat.com> MIME-Version: 1.0 Content-type: text/plain X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H4,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1771161026882376957 X-GMAIL-MSGID: 1771161026882376957 Using the max frequency allows for the best PTP timestamping resolution, so let's default to that. Signed-off-by: Andrew Halaney Reviewed-by: Simon Horman --- drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c index 231152ee5a32..c9a27a71a3f4 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -602,6 +602,11 @@ stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac) plat->clk_ptp_ref = NULL; dev_info(&pdev->dev, "PTP uses main clock\n"); } else { + /* Get the best resolution possible */ + rc = clk_set_rate(plat->clk_ptp_ref, ULONG_MAX); + if (rc) + dev_err(&pdev->dev, + "Failed to set clk_ptp_ref rate: %d\n", rc); plat->clk_ptp_rate = clk_get_rate(plat->clk_ptp_ref); dev_dbg(&pdev->dev, "PTP rate %d\n", plat->clk_ptp_rate); }