From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: [PATCH 09/12] ARM: OMAP3: mmc-twl4030 add cover switch Date: Tue, 10 Mar 2009 14:12:35 -0700 Message-ID: <20090310211235.16425.63506.stgit@localhost> References: <20090310205824.16425.97745.stgit@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: Received: from mho-01-bos.mailhop.org ([63.208.196.178]:58473 "EHLO mho-01-bos.mailhop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751741AbZCJVMh (ORCPT ); Tue, 10 Mar 2009 17:12:37 -0400 In-Reply-To: <20090310205824.16425.97745.stgit@localhost> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: linux-arm-kernel@lists.arm.linux.org.uk Cc: David Brownell , linux-omap@vger.kernel.org, Adrian Hunter From: Adrian Hunter Allow a cover switch to be used to cause a rescan of the MMC slot. Signed-off-by: Adrian Hunter Acked-by: David Brownell Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/mmc-twl4030.c | 13 ++++++++++++- arch/arm/mach-omap2/mmc-twl4030.h | 1 + 2 files changed, 13 insertions(+), 1 deletions(-) diff --git a/arch/arm/mach-omap2/mmc-twl4030.c b/arch/arm/mach-omap2/mmc-twl4030.c index 2becaf3..9f53d22 100644 --- a/arch/arm/mach-omap2/mmc-twl4030.c +++ b/arch/arm/mach-omap2/mmc-twl4030.c @@ -100,6 +100,14 @@ static int twl_mmc_get_ro(struct device *dev, int slot) return gpio_get_value_cansleep(mmc->slots[0].gpio_wp); } +static int twl_mmc_get_cover_state(struct device *dev, int slot) +{ + struct omap_mmc_platform_data *mmc = dev->platform_data; + + /* NOTE: assumes card detect signal is active-low */ + return !gpio_get_value_cansleep(mmc->slots[0].switch_pin); +} + /* * MMC Slot Initialization. */ @@ -410,7 +418,10 @@ void __init twl4030_mmc_init(struct twl4030_hsmmc_info *controllers) mmc->slots[0].switch_pin = c->gpio_cd; mmc->slots[0].card_detect_irq = gpio_to_irq(c->gpio_cd); - mmc->slots[0].card_detect = twl_mmc_card_detect; + if (c->cover_only) + mmc->slots[0].get_cover_state = twl_mmc_get_cover_state; + else + mmc->slots[0].card_detect = twl_mmc_card_detect; } else mmc->slots[0].switch_pin = -EINVAL; diff --git a/arch/arm/mach-omap2/mmc-twl4030.h b/arch/arm/mach-omap2/mmc-twl4030.h index 21d3572..0aa1686 100644 --- a/arch/arm/mach-omap2/mmc-twl4030.h +++ b/arch/arm/mach-omap2/mmc-twl4030.h @@ -11,6 +11,7 @@ struct twl4030_hsmmc_info { u8 wires; /* 1/4/8 wires */ bool transceiver; /* MMC-2 option */ bool ext_clock; /* use external pin for input clock */ + bool cover_only; /* No card detect - just cover switch */ int gpio_cd; /* or -EINVAL */ int gpio_wp; /* or -EINVAL */ struct device *dev; /* returned: pointer to mmc adapter */