Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755320AbZAVCBT (ORCPT ); Wed, 21 Jan 2009 21:01:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755846AbZAVCA2 (ORCPT ); Wed, 21 Jan 2009 21:00:28 -0500 Received: from rtsoft3.corbina.net ([85.21.88.6]:44872 "EHLO buildserver.ru.mvista.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1755576AbZAVCA1 (ORCPT ); Wed, 21 Jan 2009 21:00:27 -0500 Date: Thu, 22 Jan 2009 05:00:26 +0300 From: Anton Vorontsov To: Pierre Ossman Cc: Ben Dooks , Arnd Bergmann , Kumar Gala , Liu Dave , Xie Xiaobo , Konjin Lai , "Joe D'Abbraccio" , sdhci-devel@list.drzeus.cx, linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org Subject: [PATCH 04/10] sdhci: Add support for hosts reporting inverted write-protect state Message-ID: <20090122020026.GD11492@oksana.dev.rtsoft.ru> References: <20090122015649.GA6835@oksana.dev.rtsoft.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Disposition: inline In-Reply-To: <20090122015649.GA6835@oksana.dev.rtsoft.ru> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1592 Lines: 46 This patch adds SDHCI_QUIRK_INVERTED_WRITE_PROTECT quirk. When specified, the sdhci driver will invert WP state. p.s. Actually, the quirk is more board-specific than controller-specific. Signed-off-by: Anton Vorontsov --- drivers/mmc/host/sdhci.c | 2 ++ drivers/mmc/host/sdhci.h | 2 ++ 2 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 5a7a584..63809f5 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1114,6 +1114,8 @@ static int sdhci_get_ro(struct mmc_host *mmc) spin_unlock_irqrestore(&host->lock, flags); + if (host->quirks & SDHCI_QUIRK_INVERTED_WRITE_PROTECT) + return !!(present & SDHCI_WRITE_PROTECT); return !(present & SDHCI_WRITE_PROTECT); } diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index f357722..9cd2b78 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -215,6 +215,8 @@ struct sdhci_host { #define SDHCI_QUIRK_NO_BUSY_IRQ (1<<15) /* Controller has unreliable card detection */ #define SDHCI_QUIRK_BROKEN_CARD_DETECTION (1<<16) +/* Controller reports inverted write-protect state */ +#define SDHCI_QUIRK_INVERTED_WRITE_PROTECT (1<<17) int irq; /* Device IRQ */ void __iomem * ioaddr; /* Mapped address */ -- 1.5.6.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/