From patchwork Thu Feb 15 19:00:23 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kai-Heng Feng X-Patchwork-Id: 874079 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-ide-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3zj5Fr5wydz9t5l for ; Fri, 16 Feb 2018 06:00:48 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161461AbeBOTAa (ORCPT ); Thu, 15 Feb 2018 14:00:30 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:38143 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161367AbeBOTA3 (ORCPT ); Thu, 15 Feb 2018 14:00:29 -0500 Received: from 114-32-108-117.hinet-ip.hinet.net ([114.32.108.117] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1emOlf-0008E3-VI; Thu, 15 Feb 2018 19:00:28 +0000 From: Kai-Heng Feng To: tj@kernel.org Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, Kai-Heng Feng Subject: [PATCH] libata: disable LPM for Crucial BX100 SSD drives Date: Fri, 16 Feb 2018 03:00:23 +0800 Message-Id: <20180215190023.25575-1-kai.heng.feng@canonical.com> X-Mailer: git-send-email 2.15.1 Sender: linux-ide-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ide@vger.kernel.org After Laptop Mode Tools starts to use min_power for LPM, a user found out Crucial BX100 SSD can't get mounted. Crucial BX100 SSD drives don't work well with min_power. This also happens to med_power_with_dipm. So let's disable LPM for Crucial BX100 SSD drives. BugLink: https://bugs.launchpad.net/bugs/1726930 Signed-off-by: Kai-Heng Feng --- drivers/ata/libata-core.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 3c09122bf038..577cf820eed4 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -4592,6 +4592,14 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { { "WDC WD3000JD-*", NULL, ATA_HORKAGE_WD_BROKEN_LPM }, { "WDC WD3200JD-*", NULL, ATA_HORKAGE_WD_BROKEN_LPM }, + /* + * Crucial BX100 SSD has broken min_power and med_power_with_dipm + * support. + * + * https://bugs.launchpad.net/bugs/1726930 + */ + { "CT*BX100SSD1", NULL, ATA_HORKAGE_NOLPM }, + /* End Marker */ { } };