From patchwork Mon Mar 1 16:10:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 389920 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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham 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 4EA3BC4321A for ; Mon, 1 Mar 2021 17:39:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2566A652E8 for ; Mon, 1 Mar 2021 17:39:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238771AbhCARip (ORCPT ); Mon, 1 Mar 2021 12:38:45 -0500 Received: from mail.kernel.org ([198.145.29.99]:52094 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231923AbhCAR3Y (ORCPT ); Mon, 1 Mar 2021 12:29:24 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5264F64FAE; Mon, 1 Mar 2021 16:52:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614617530; bh=ygamSbrFi84tgQ2SxUxnnOofVQwZL/0QqTADRFlj6x4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bSOa6DjMExoNZ8wJvG/2ne8ikfzF9WZAiMbdeA/2i4MdVWAZifoFMf4q4RPLIswT/ yGYlWa4LIHTq+PO5kMZUIGE95OraBpZfLa5Bc1xA7F3eX3hcdTAa/LLobjzKeB4CJd mGV7h3gT7pRAp9m2bP21CpMiFRRVVF/qOs/R6PiE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Florian Fainelli , Jens Axboe , Sasha Levin Subject: [PATCH 5.4 107/340] ata: ahci_brcm: Add back regulators management Date: Mon, 1 Mar 2021 17:10:51 +0100 Message-Id: <20210301161053.600061914@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161048.294656001@linuxfoundation.org> References: <20210301161048.294656001@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Florian Fainelli [ Upstream commit 10340f8d7b6dd54e616339c8ccb2f397133ebea0 ] While reworking the resources management and departing from using ahci_platform_enable_resources() which did not allow a proper step separation like we need, we unfortunately lost the ability to control AHCI regulators. This broke some Broadcom STB systems that do expect regulators to be turned on to link up with attached hard drives. Fixes: c0cdf2ac4b5b ("ata: ahci_brcm: Fix AHCI resources management") Signed-off-by: Florian Fainelli Signed-off-by: Jens Axboe Signed-off-by: Sasha Levin --- drivers/ata/ahci_brcm.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/ata/ahci_brcm.c b/drivers/ata/ahci_brcm.c index 66a570d0da837..067b55cc157ef 100644 --- a/drivers/ata/ahci_brcm.c +++ b/drivers/ata/ahci_brcm.c @@ -361,6 +361,10 @@ static int brcm_ahci_resume(struct device *dev) if (ret) return ret; + ret = ahci_platform_enable_regulators(hpriv); + if (ret) + goto out_disable_clks; + brcm_sata_init(priv); brcm_sata_phys_enable(priv); brcm_sata_alpm_init(hpriv); @@ -390,6 +394,8 @@ out_disable_platform_phys: ahci_platform_disable_phys(hpriv); out_disable_phys: brcm_sata_phys_disable(priv); + ahci_platform_disable_regulators(hpriv); +out_disable_clks: ahci_platform_disable_clks(hpriv); return ret; } @@ -463,6 +469,10 @@ static int brcm_ahci_probe(struct platform_device *pdev) if (ret) goto out_reset; + ret = ahci_platform_enable_regulators(hpriv); + if (ret) + goto out_disable_clks; + /* Must be first so as to configure endianness including that * of the standard AHCI register space. */ @@ -472,7 +482,7 @@ static int brcm_ahci_probe(struct platform_device *pdev) priv->port_mask = brcm_ahci_get_portmask(hpriv, priv); if (!priv->port_mask) { ret = -ENODEV; - goto out_disable_clks; + goto out_disable_regulators; } /* Must be done before ahci_platform_enable_phys() */ @@ -497,6 +507,8 @@ out_disable_platform_phys: ahci_platform_disable_phys(hpriv); out_disable_phys: brcm_sata_phys_disable(priv); +out_disable_regulators: + ahci_platform_disable_regulators(hpriv); out_disable_clks: ahci_platform_disable_clks(hpriv); out_reset: