From patchwork Fri Mar 6 14:31:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 11424133 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C8CD514BC for ; Fri, 6 Mar 2020 14:31:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AA6132072D for ; Fri, 6 Mar 2020 14:31:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Ga7Hl0ZG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726704AbgCFObO (ORCPT ); Fri, 6 Mar 2020 09:31:14 -0500 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:40633 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726733AbgCFObO (ORCPT ); Fri, 6 Mar 2020 09:31:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1583505073; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=1WsT4u0i16h3vKEnqv0N3Kxg+eLPrpkEV282Z7os4E0=; b=Ga7Hl0ZGRP+T08X6YhkqhTrAtqH8C6d6MLTORJ/FHemkFg+TuBkH/jzbrJJOAESHYoKoCx oUU/egPOFEqRBYrna65/FdMXoh5QTjFZ3DzijtLUqSSrf+aI7kfoqgskeDrc9TpfMjadV9 nufVIMdRX3RRcFjPyZbzy3QX/polJC8= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-443-TEZvO78WOVGnvq1hHFuupA-1; Fri, 06 Mar 2020 09:31:09 -0500 X-MC-Unique: TEZvO78WOVGnvq1hHFuupA-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 694DB8017DF; Fri, 6 Mar 2020 14:31:08 +0000 (UTC) Received: from x1.localdomain.com (unknown [10.36.118.146]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3B61B48; Fri, 6 Mar 2020 14:31:05 +0000 (UTC) From: Hans de Goede To: Adrian Hunter , Ulf Hansson Cc: Hans de Goede , "russianneuromancer @ ya . ru" , linux-mmc@vger.kernel.org Subject: [PATCH v2 2/2] mmc: sdhci-acpi: Disable write protect detection on Acer Aspire Switch 10 (SW5-012) Date: Fri, 6 Mar 2020 15:31:00 +0100 Message-Id: <20200306143100.164975-2-hdegoede@redhat.com> In-Reply-To: <20200306143100.164975-1-hdegoede@redhat.com> References: <20200306143100.164975-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org On the Acer Aspire Switch 10 (SW5-012) microSD slot always reports the card being write-protected even though microSD cards do not have a write-protect switch at all. Add a new DMI_QUIRK_SD_NO_WRITE_PROTECT quirk which when set sets the MMC_CAP2_NO_WRITE_PROTECT flag on the controller for the external SD slot; and add a DMI quirk table entry which selects this quirk for the Acer SW5-012. Signed-off-by: Hans de Goede --- Changes in v2: - Drop the module option to allow overridig the quirks --- drivers/mmc/host/sdhci-acpi.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c index d54a3592f40f..f17d5e556b43 100644 --- a/drivers/mmc/host/sdhci-acpi.c +++ b/drivers/mmc/host/sdhci-acpi.c @@ -79,6 +79,7 @@ struct sdhci_acpi_host { enum { DMI_QUIRK_RESET_SD_SIGNAL_VOLT_ON_SUSP = BIT(0), + DMI_QUIRK_SD_NO_WRITE_PROTECT = BIT(1), }; static inline void *sdhci_acpi_priv(struct sdhci_acpi_host *c) @@ -668,6 +669,18 @@ static const struct dmi_system_id sdhci_acpi_quirks[] = { }, .driver_data = (void *)DMI_QUIRK_RESET_SD_SIGNAL_VOLT_ON_SUSP, }, + { + /* + * The Acer Aspire Switch 10 (SW5-012) microSD slot always + * reports the card being write-protected even though microSD + * cards do not have a write-protect switch at all. + */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"), + }, + .driver_data = (void *)DMI_QUIRK_SD_NO_WRITE_PROTECT, + }, {} /* Terminating entry */ }; @@ -792,6 +805,9 @@ static int sdhci_acpi_probe(struct platform_device *pdev) if (quirks & DMI_QUIRK_RESET_SD_SIGNAL_VOLT_ON_SUSP) c->reset_signal_volt_on_suspend = true; + + if (quirks & DMI_QUIRK_SD_NO_WRITE_PROTECT) + host->mmc->caps2 |= MMC_CAP2_NO_WRITE_PROTECT; } err = sdhci_setup_host(host);