From patchwork Sun Oct 13 21:27:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Petrous via B4 Relay X-Patchwork-Id: 13834055 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 85E6CCF2591 for ; Sun, 13 Oct 2024 21:47:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Reply-To:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To: References:Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version: Subject:Date:From:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=sfLLjFHlH9LzJMpRN2oc8uoiCZSLK9FX24kB4yl+fK4=; b=jWDk318lBgF9ceKJbVilL6fSxe S7dsZ4uwLXeB/vCPakXVThL1KDVwXTy2wF8sZ371YYGKyGi14loI5j9QIfizhQ+qNQHnRJ9iPCydp iO1K4xbW/j07krUikLGc8YhVo9Nztg6Q3rfa8uUi6vnG4puWF7UF0NMUjdMJybbErnkS1OxgYuYBq ZuI7vZCEkUhyinfnb02l2loOVr3nLDvjwNYFUmWijVheYTLqtHOoxfJF6gGNEIGYEjSCTIZWJWd22 4IOiCUVG6WQQ7zMd+fiKoSIRRl+iglhmCTHXqfo5Hn8B4hrjVeV+sVnkyKoJcPE6b++z6p601+Res QslCrcFg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t06RI-00000003J1i-1wco; Sun, 13 Oct 2024 21:47:48 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t068B-00000003Ft8-25mE for linux-arm-kernel@lists.infradead.org; Sun, 13 Oct 2024 21:28:07 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 737745C58D0; Sun, 13 Oct 2024 21:27:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id DD119C4AF0D; Sun, 13 Oct 2024 21:27:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1728854878; bh=B8D4rtkDCUvIgkAJnwHDrRoK8VWaANfpHt6JnSqvkNo=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=QOBQviP8pMyYkocR/dYrePt3TOxF4ryOhIhqa7EhFJ+oZKOXdFimXxr3Z8xlRkHDl 3gpA26xp/W//S5FmRR+H8heZsOICERBXxEtwI4HqDenNgdYcP2bwih8folFnqWd6If rI6ygSGPlP4WEjnmJX4Rts00i8Iqd/EGOzL0AalOubPmQ1MV2ryaCdBy1zqi7Lqek3 OJD42OnQW+EHMPPTTSZUaqE4ELQpZhpx9di5QlFxV4OOgt6xNnjyJqFhsYWjzVjHIR wwXjR0HOBzHMViLTGv//IqsRBIb40n3AOOgU57o0jaZw2Z5Dl4HQ0PWTpTlg0kl24H r8rnt5g4UVXwQ== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id CD547CF2591; Sun, 13 Oct 2024 21:27:58 +0000 (UTC) From: Jan Petrous via B4 Relay Date: Sun, 13 Oct 2024 23:27:51 +0200 Subject: [PATCH v3 16/16] net: stmmac: dwmac-s32: Read PTP clock rate when ready MIME-Version: 1.0 Message-Id: <20241013-upstream_s32cc_gmac-v3-16-d84b5a67b930@oss.nxp.com> References: <20241013-upstream_s32cc_gmac-v3-0-d84b5a67b930@oss.nxp.com> In-Reply-To: <20241013-upstream_s32cc_gmac-v3-0-d84b5a67b930@oss.nxp.com> To: Maxime Coquelin , Alexandre Torgue , Jose Abreu , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Vinod Koul , Richard Cochran , Andrew Lunn , Heiner Kallweit , Russell King , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Emil Renner Berthing , Minda Chen , Nicolas Ferre , Claudiu Beznea , Iyappan Subramanian , Keyur Chudgar , Quan Nguyen , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Giuseppe Cavallaro Cc: linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-arm-msm@vger.kernel.org, imx@lists.linux.dev, devicetree@vger.kernel.org, NXP S32 Linux Team , "Jan Petrous (OSS)" , Andrei Botila , Jacob Keller X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1728854875; l=1605; i=jan.petrous@oss.nxp.com; s=20240922; h=from:subject:message-id; bh=yghcsP0rT1E+KchKPuX8DbIOCwUwU33DKX66yshrGiI=; b=rlFKSP5vX/qcXmdlWd4FXmmlRdEmQ1yeJaLvdVoYW0pouWkcfUFvPcxCrMwVsedbS365JSzZB h+dQP6P/jtsBNIya5JLVNWMXWpGB7PDdgKlyqw+3OjugSO34ce4lc7a X-Developer-Key: i=jan.petrous@oss.nxp.com; a=ed25519; pk=Ke3wwK7rb2Me9UQRf6vR8AsfJZfhTyoDaxkUCqmSWYY= X-Endpoint-Received: by B4 Relay for jan.petrous@oss.nxp.com/20240922 with auth_id=217 X-Original-From: "Jan Petrous (OSS)" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241013_142803_733658_5A29DB99 X-CRM114-Status: GOOD ( 11.74 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: jan.petrous@oss.nxp.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: "Jan Petrous (OSS)" The PTP clock is read by stmmac_platform during DT parse. On S32G/R the clock is not ready and returns 0. Postpone reading of the clock on PTP init. Co-developed-by: Andrei Botila Signed-off-by: Andrei Botila Signed-off-by: Jan Petrous (OSS) Reviewed-by: Jacob Keller --- drivers/net/ethernet/stmicro/stmmac/dwmac-s32.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-s32.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-s32.c index aedd6bf80684..3daf282d8da7 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-s32.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-s32.c @@ -140,6 +140,18 @@ static void s32_fix_mac_speed(void *priv, unsigned int speed, unsigned int mode) dev_err(gmac->dev, "Can't set tx clock\n"); } +static void s32_dwmac_ptp_clk_freq_config(struct stmmac_priv *priv) +{ + struct plat_stmmacenet_data *plat = priv->plat; + + if (!plat->clk_ptp_ref) + return; + + plat->clk_ptp_rate = clk_get_rate(plat->clk_ptp_ref); + + netdev_dbg(priv->dev, "PTP rate %lu\n", plat->clk_ptp_rate); +} + static int s32_dwmac_probe(struct platform_device *pdev) { struct plat_stmmacenet_data *plat; @@ -195,6 +207,7 @@ static int s32_dwmac_probe(struct platform_device *pdev) plat->init = s32_gmac_init; plat->exit = s32_gmac_exit; plat->fix_mac_speed = s32_fix_mac_speed; + plat->ptp_clk_freq_config = s32_dwmac_ptp_clk_freq_config; plat->bsp_priv = gmac;