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Tue, 23 Jun 2020 13:34:32 +0000 From: Akshu Agrawal Cc: akshu.agrawal@amd.com, rrangel@google.com, nehal-bakulchandra.shah@amd.com, Adrian Hunter , Ulf Hansson , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org (open list) Subject: [PATCH] mmc: sdhci-acpi: For amd device set driver type as MMC_SET_DRIVER_TYPE_A Date: Tue, 23 Jun 2020 19:03:27 +0530 Message-Id: <20200623133347.4598-1-akshu.agrawal@amd.com> X-Mailer: git-send-email 2.20.1 X-ClientProxiedBy: MA1PR0101CA0039.INDPRD01.PROD.OUTLOOK.COM (2603:1096:a00:22::25) To DM5PR12MB1337.namprd12.prod.outlook.com (2603:10b6:3:6e::11) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from akshu-HP-EliteBook-745-G4.dlink.router (122.171.36.38) by MA1PR0101CA0039.INDPRD01.PROD.OUTLOOK.COM (2603:1096:a00:22::25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3109.22 via Frontend Transport; Tue, 23 Jun 2020 13:34:24 +0000 X-Mailer: git-send-email 2.20.1 X-Originating-IP: [122.171.36.38] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 0a04825e-3573-4beb-4003-08d8177a2964 X-MS-TrafficTypeDiagnostic: DM6PR12MB2809: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:1468; 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(no To-header on input) Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org HS400/HS200/eMMC HS doesn't have Preset Value register. Hence, sdhci_set_ios function overrides the value set by fmw to SDHCI_CTRL_DRV_TYPE_B. This patch sets drv_type to MMC_SET_DRIVER_TYPE_A so that host_control2 register gets updated with the required strength value. Signed-off-by: Akshu Agrawal Acked-by: Adrian Hunter --- drivers/mmc/host/sdhci-acpi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c index d8b76cb8698a..48ecbd0b180d 100644 --- a/drivers/mmc/host/sdhci-acpi.c +++ b/drivers/mmc/host/sdhci-acpi.c @@ -542,6 +542,7 @@ static int amd_select_drive_strength(struct mmc_card *card, unsigned int max_dtr, int host_drv, int card_drv, int *drv_type) { + *drv_type = MMC_SET_DRIVER_TYPE_A; return MMC_SET_DRIVER_TYPE_A; }