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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 93EB0CA9EB9 for ; Sat, 26 Oct 2019 13:22:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 598D921E6F for ; Sat, 26 Oct 2019 13:22:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572096133; bh=oKR+MzhCfvePeBN6J6ZjftzLR2nZeiO8x81NetuLrnk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=KlJ0BiEdT6VPDOufrAfTBgwz/tBhd93OGBhKKfLkCzrlZCSHe1NWvuwIYoC8csRdW Pkup1rM9zu0mBT4GL8nbMeEisSzQopmkunZzloE3Av0XfelwYpv4FXHHHtQmkZ2Ugl s2RAZ7xTYGgPjr8W+a6Hggojvf2Gu1lQxvCqCVLw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728090AbfJZNWM (ORCPT ); Sat, 26 Oct 2019 09:22:12 -0400 Received: from mail.kernel.org ([198.145.29.99]:43822 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729288AbfJZNWE (ORCPT ); Sat, 26 Oct 2019 09:22:04 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CF9F0222BE; Sat, 26 Oct 2019 13:22:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572096123; bh=oKR+MzhCfvePeBN6J6ZjftzLR2nZeiO8x81NetuLrnk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sAYSS6zN90j9896N/cRODi7WDN2lz/Q9ujvUKfRUNqhE1bF0svYfibQ05s3HY1GYX tfhKqwBgfn6e9GxWFm9spp7JXy5aoXv0pnV1sicCv0kvpyNtTT/O790LmtKXyXPL1R 8T9jQkQpAFB48xaPLUmnsQH97Snkx+riEHx6jc6Y= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Biao Huang , "David S . Miller" , Sasha Levin , netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.14 27/33] net: stmmac: disable/enable ptp_ref_clk in suspend/resume flow Date: Sat, 26 Oct 2019 09:21:04 -0400 Message-Id: <20191026132110.4026-27-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191026132110.4026-1-sashal@kernel.org> References: <20191026132110.4026-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Biao Huang [ Upstream commit e497c20e203680aba9ccf7bb475959595908ca7e ] disable ptp_ref_clk in suspend flow, and enable it in resume flow. Fixes: f573c0b9c4e0 ("stmmac: move stmmac_clk, pclk, clk_ptp_ref and stmmac_rst to platform structure") Signed-off-by: Biao Huang Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index f4df9ab0aed5f..612773b94ae3c 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -4402,8 +4402,10 @@ int stmmac_suspend(struct device *dev) priv->hw->mac->set_mac(priv->ioaddr, false); pinctrl_pm_select_sleep_state(priv->device); /* Disable clock in case of PWM is off */ - clk_disable(priv->plat->pclk); - clk_disable(priv->plat->stmmac_clk); + if (priv->plat->clk_ptp_ref) + clk_disable_unprepare(priv->plat->clk_ptp_ref); + clk_disable_unprepare(priv->plat->pclk); + clk_disable_unprepare(priv->plat->stmmac_clk); } spin_unlock_irqrestore(&priv->lock, flags); @@ -4468,8 +4470,10 @@ int stmmac_resume(struct device *dev) } else { pinctrl_pm_select_default_state(priv->device); /* enable the clk previously disabled */ - clk_enable(priv->plat->stmmac_clk); - clk_enable(priv->plat->pclk); + clk_prepare_enable(priv->plat->stmmac_clk); + clk_prepare_enable(priv->plat->pclk); + if (priv->plat->clk_ptp_ref) + clk_prepare_enable(priv->plat->clk_ptp_ref); /* reset the phy so that it's ready */ if (priv->mii) stmmac_mdio_reset(priv->mii); -- 2.20.1