From patchwork Sat Oct 31 11:36:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 317385 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=-9.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 BE73BC388F9 for ; Sat, 31 Oct 2020 11:46:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7C31720731 for ; Sat, 31 Oct 2020 11:46:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604144814; bh=SMfhHhQwtwwMYs3J42tcHlFTpIPOsdFSqU6SIl2UIY8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=yOr0P5hhsIERhWJy6Z1Kdfy9rNTCeDK16eSuXHPtimQehmnN3QwnE+9HTp0wGjCby qf8vLmr6jZfT8n4Xgd+8mn3vU3acZpGgCHjg1d+E4vI3MOyM8KKJ9wbCmjPdlmfBgs MaqdQf5dTdIhXojz/oWI9KcR5tsf5q/iPZQAtxZY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727787AbgJaLqx (ORCPT ); Sat, 31 Oct 2020 07:46:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:47482 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727964AbgJaLqO (ORCPT ); Sat, 31 Oct 2020 07:46:14 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9B313205F4; Sat, 31 Oct 2020 11:46:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604144774; bh=SMfhHhQwtwwMYs3J42tcHlFTpIPOsdFSqU6SIl2UIY8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZMqCwToCinzmLb8f5yOiwu0YaPQG+DT2sdvC2NJN/bjWeJaM/t4r82tXfKibPQySk j8esOa1m81wQT+xQ3eKvjIFWUt80zSqoFxvZb+OUeXMfgs+FPaQy5f4bcl16UJ1LlL oVdYxk4hVMmmCIQA6PeGJyHMihJWk8t1/Wp6nCxk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, =?utf-8?q?Pali_Roh=C3=A1r?= , Tomasz Maciej Nowak , Jens Axboe Subject: [PATCH 5.9 57/74] ata: ahci: mvebu: Make SATA PHY optional for Armada 3720 Date: Sat, 31 Oct 2020 12:36:39 +0100 Message-Id: <20201031113502.764538603@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201031113500.031279088@linuxfoundation.org> References: <20201031113500.031279088@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Pali Rohár commit 45aefe3d2251e4e229d7662052739f96ad1d08d9 upstream. Older ATF does not provide SMC call for SATA phy power on functionality and therefore initialization of ahci_mvebu is failing when older version of ATF is using. In this case phy_power_on() function returns -EOPNOTSUPP. This patch adds a new hflag AHCI_HFLAG_IGN_NOTSUPP_POWER_ON which cause that ahci_platform_enable_phys() would ignore -EOPNOTSUPP errors from phy_power_on() call. It fixes initialization of ahci_mvebu on Espressobin boards where is older Marvell's Arm Trusted Firmware without SMC call for SATA phy power. This is regression introduced in commit 8e18c8e58da64 ("arm64: dts: marvell: armada-3720-espressobin: declare SATA PHY property") where SATA phy was defined and therefore ahci_platform_enable_phys() on Espressobin started failing. Fixes: 8e18c8e58da64 ("arm64: dts: marvell: armada-3720-espressobin: declare SATA PHY property") Signed-off-by: Pali Rohár Tested-by: Tomasz Maciej Nowak Cc: # 5.1+: ea17a0f153af: phy: marvell: comphy: Convert internal SMCC firmware return codes to errno Signed-off-by: Jens Axboe Signed-off-by: Greg Kroah-Hartman --- drivers/ata/ahci.h | 2 ++ drivers/ata/ahci_mvebu.c | 2 +- drivers/ata/libahci_platform.c | 2 +- 3 files changed, 4 insertions(+), 2 deletions(-) --- a/drivers/ata/ahci.h +++ b/drivers/ata/ahci.h @@ -240,6 +240,8 @@ enum { as default lpm_policy */ AHCI_HFLAG_SUSPEND_PHYS = (1 << 26), /* handle PHYs during suspend/resume */ + AHCI_HFLAG_IGN_NOTSUPP_POWER_ON = (1 << 27), /* ignore -EOPNOTSUPP + from phy_power_on() */ /* ap->flags bits */ --- a/drivers/ata/ahci_mvebu.c +++ b/drivers/ata/ahci_mvebu.c @@ -227,7 +227,7 @@ static const struct ahci_mvebu_plat_data static const struct ahci_mvebu_plat_data ahci_mvebu_armada_3700_plat_data = { .plat_config = ahci_mvebu_armada_3700_config, - .flags = AHCI_HFLAG_SUSPEND_PHYS, + .flags = AHCI_HFLAG_SUSPEND_PHYS | AHCI_HFLAG_IGN_NOTSUPP_POWER_ON, }; static const struct of_device_id ahci_mvebu_of_match[] = { --- a/drivers/ata/libahci_platform.c +++ b/drivers/ata/libahci_platform.c @@ -59,7 +59,7 @@ int ahci_platform_enable_phys(struct ahc } rc = phy_power_on(hpriv->phys[i]); - if (rc) { + if (rc && !(rc == -EOPNOTSUPP && (hpriv->flags & AHCI_HFLAG_IGN_NOTSUPP_POWER_ON))) { phy_exit(hpriv->phys[i]); goto disable_phys; }