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 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 97E9CE9A048 for ; Thu, 19 Feb 2026 12:51:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Date: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-Owner; bh=WigBpR2LUG+IwR0uFA6Lmf6TgmmsDesfHsCPHW4cIWU=; b=Xjg6bArzuyNP3S+bFdxDFcEQza H0SrhyW7fZe0UbuE82zDLGchQLYomH0bj22zj3V3/jl3YLx/DJUiijAz+Lmc457Dh6hpq2hpqovjL BMun8J6fidBlWbyGs3bKw8zHt3UTgpqfBZc1bJWOmidhGcjg9GoYUAw7zpkqgKZZxReAbfBt6S3RB sfQkToIM8qQVKs452x45Cx5OP549DnnDP6wKOWF6P4gakMkuWAAJgD829xfa/E+yXUDZm2ibjgWTA qvwJRn0pyPwbys0B6h+yt1NvYQ63fBJnzkr4tyqc5YEt4v6kq2jQEEA3QCT5ejK1W6eg6zpKnhCUj 1rGByxdw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vt3V0-0000000BMOL-0urh; Thu, 19 Feb 2026 12:51:18 +0000 Received: from pandora.armlinux.org.uk ([2001:4d48:ad52:32c8:5054:ff:fe00:142]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vt3Ux-0000000BMKm-3qzh; Thu, 19 Feb 2026 12:51:16 +0000 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*() MIME-Version: 1.0 Content-Disposition: inline Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="utf-8" Message-Id: Date: Thu, 19 Feb 2026 12:51:04 +0000 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260219_045115_956103_839D82D9 X-CRM114-Status: GOOD ( 11.39 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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