From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [78.32.30.218]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B650C309DA5; Thu, 19 Feb 2026 12:51:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=78.32.30.218 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771505477; cv=none; b=r+/e45hCYuZpJTTvRDiTZIj/Jhg11RsWtzlFzN2LhljbyyAsu6iiS67TDyHCoe0mEWvMgaFdd4bDMqW9dAASFd4QdKiAgcGZGVT2BERv/8BjvQl+0IfQ9Vap9dxyJ3JF7FTi5i5u0v7J370DAP2+XhD+rss/THvAdd8UvM9V++o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771505477; c=relaxed/simple; bh=daWTiguX6shIzthgmXhmO8e8uvMFQGDxXBW1a4GkXfI=; h=In-Reply-To:References:From:To:Cc:Subject:MIME-Version: Content-Disposition:Content-Type:Message-Id:Date; b=gDS2QbRFWkGSkwGOUK90S0FjszVX8+LRtpVwW80uNcuQZ+KLRvofHtEtexhTjm90tizE57fJON97pfSyTAG4ITtvir5j4LKEGDPouI3gvfJ8pCAbtluzMbxWuwJ3GeYHTKSA0lyyWxeFtoK/hgio2+NbNjIMmzU5ntGjtJ5KmKQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk; spf=none smtp.mailfrom=armlinux.org.uk; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b=jlvSrfEi; arc=none smtp.client-ip=78.32.30.218 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b="jlvSrfEi" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Date:Sender:Message-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References: In-Reply-To:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=WigBpR2LUG+IwR0uFA6Lmf6TgmmsDesfHsCPHW4cIWU=; b=jlvSrfEi6DwoArdUejrqsgE5X7 rAWXyEL64r3eED/+vfawNnuTLY7pEsFsXTYNiypjyOB7RdmY8oKl+2BXM1xjZi/l05jXG/UcV02tX FAa7YQim6/K/WfnKI8c1124lRf8FTuvuFr6JwsmX1BcbTfyY3iJJo9QFTSnzqD4Kw8JXOlhmvJVWf O/jG5cwOAGwqKTb0A6jodWMvgJVTX7KZYLTXexWFM010+npYzjA2IAIkxwld3eujXPE30bKrA0AJl tSPIhN/U8AlmDLNIXbYyLaN3F4fYt1/Wgo5QMqjQyCDXluAVKyGpWQsJ4Y1AL3ZvqeALL+I0Mz5jo KlHfw8EQ==; Received: from e0022681537dd.dyn.armlinux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:46446 helo=rmk-PC.armlinux.org.uk) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1vt3Up-000000000tL-1LTQ; Thu, 19 Feb 2026 12:51:07 +0000 Received: from rmk by rmk-PC.armlinux.org.uk with local (Exim 4.98.2) (envelope-from ) id 1vt3Um-0000000A5ec-3moZ; Thu, 19 Feb 2026 12:51:04 +0000 In-Reply-To: References: From: "Russell King (Oracle)" To: Andrew Lunn Cc: Alexandre Torgue , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, Mohd Ayaan Anwar , Neil Armstrong , netdev@vger.kernel.org, Paolo Abeni , Vinod Koul Subject: [PATCH RFC net-next+ 8/9] phy: qcom-sgmii-eth: relax order of .power_on() vs .set_mode*() Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="utf-8" Message-Id: Sender: Russell King Date: Thu, 19 Feb 2026 12:51:04 +0000 Allow any order of the .power_on() and .set_mode*() methods as per the recent discussion. This means phy_power_on() with this SerDes will now restore the previous setup without requiring a subsequent phy_set_mode*() call. Signed-off-by: Russell King (Oracle) --- drivers/phy/qualcomm/phy-qcom-sgmii-eth.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/phy/qualcomm/phy-qcom-sgmii-eth.c b/drivers/phy/qualcomm/phy-qcom-sgmii-eth.c index 6332ff291fdf..f48faa2929a6 100644 --- a/drivers/phy/qualcomm/phy-qcom-sgmii-eth.c +++ b/drivers/phy/qualcomm/phy-qcom-sgmii-eth.c @@ -271,8 +271,17 @@ static int qcom_dwmac_sgmii_phy_calibrate(struct phy *phy) static int qcom_dwmac_sgmii_phy_power_on(struct phy *phy) { struct qcom_dwmac_sgmii_phy_data *data = phy_get_drvdata(phy); + int ret; + + ret = clk_prepare_enable(data->refclk); + if (ret < 0) + return ret; - return clk_prepare_enable(data->refclk); + ret = qcom_dwmac_sgmii_phy_calibrate(phy); + if (ret < 0) + clk_disable_unprepare(data->refclk); + + return ret; } static int qcom_dwmac_sgmii_phy_power_off(struct phy *phy) @@ -318,6 +327,9 @@ static int qcom_dwmac_sgmii_phy_set_mode(struct phy *phy, enum phy_mode mode, if (submode != data->interface) data->interface = submode; + if (phy->power_count == 0) + return 0; + return qcom_dwmac_sgmii_phy_calibrate(phy); } -- 2.47.3