From patchwork Thu May 6 23:23:54 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Hilman X-Patchwork-Id: 97470 Received: from devils.ext.ti.com (devils.ext.ti.com [198.47.26.153]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o46NQADR006711 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Thu, 6 May 2010 23:26:46 GMT Received: from dlep34.itg.ti.com ([157.170.170.115]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id o46NOi1Y032317 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 6 May 2010 18:24:44 -0500 Received: from linux.omap.com (localhost [127.0.0.1]) by dlep34.itg.ti.com (8.13.7/8.13.7) with ESMTP id o46NOhhM012675; Thu, 6 May 2010 18:24:43 -0500 (CDT) Received: from linux.omap.com (localhost [127.0.0.1]) by linux.omap.com (Postfix) with ESMTP id 845548062B; Thu, 6 May 2010 18:24:43 -0500 (CDT) X-Original-To: davinci-linux-open-source@linux.davincidsp.com Delivered-To: davinci-linux-open-source@linux.davincidsp.com Received: from dflp51.itg.ti.com (dflp51.itg.ti.com [128.247.22.94]) by linux.omap.com (Postfix) with ESMTP id 1D3C480628 for ; Thu, 6 May 2010 18:24:42 -0500 (CDT) Received: from medina.ext.ti.com (localhost [127.0.0.1]) by dflp51.itg.ti.com (8.13.7/8.13.7) with ESMTP id o46NOfcp027683 for ; Thu, 6 May 2010 18:24:41 -0500 (CDT) Received: from psmtp.com (na3sys009amx219.postini.com [74.125.149.59]) by medina.ext.ti.com (8.13.7/8.13.7) with SMTP id o46NOegA015043 for ; Thu, 6 May 2010 18:24:41 -0500 Received: from source ([209.85.221.181]) by na3sys009amx219.postini.com ([74.125.148.10]) with SMTP; Thu, 06 May 2010 23:24:41 GMT Received: by qyk11 with SMTP id 11so695449qyk.13 for ; Thu, 06 May 2010 16:24:40 -0700 (PDT) Received: by 10.229.86.10 with SMTP id q10mr5896300qcl.36.1273188280089; Thu, 06 May 2010 16:24:40 -0700 (PDT) Received: from localhost (deeprootsystems.com [216.254.16.51]) by mx.google.com with ESMTPS id x34sm880393qce.9.2010.05.06.16.24.38 (version=TLSv1/SSLv3 cipher=RC4-MD5); Thu, 06 May 2010 16:24:39 -0700 (PDT) From: Kevin Hilman To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 03/34] davinci: da830/omap-l137 evm: add support for GPIO based MMC/SD card detection Date: Thu, 6 May 2010 16:23:54 -0700 Message-Id: <1273188265-12782-4-git-send-email-khilman@deeprootsystems.com> X-Mailer: git-send-email 1.7.0.2 In-Reply-To: <1273188265-12782-1-git-send-email-khilman@deeprootsystems.com> References: <1273188265-12782-1-git-send-email-khilman@deeprootsystems.com> X-pstn-neptune: 0/0/0.00/0 X-pstn-levels: (S:99.90000/99.90000 CV:99.9000 FC:95.5390 LC:95.5390 R:95.9108 P:95.9108 M:97.0282 C:98.6951 ) X-pstn-settings: 2 (0.5000:0.5000) s cv gt3 gt2 gt1 r p m c X-pstn-addresses: from [db-null] Cc: davinci-linux-open-source@linux.davincidsp.com X-BeenThere: davinci-linux-open-source@linux.davincidsp.com X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: davinci-linux-open-source-bounces@linux.davincidsp.com Errors-To: davinci-linux-open-source-bounces@linux.davincidsp.com X-Greylist: Sender succeeded STARTTLS authentication, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Thu, 06 May 2010 23:26:46 +0000 (UTC) diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c index dc19870..8e67037 100644 --- a/arch/arm/mach-davinci/board-da830-evm.c +++ b/arch/arm/mach-davinci/board-da830-evm.c @@ -229,14 +229,21 @@ static const short da830_evm_mmc_sd_pins[] = { }; #define DA830_MMCSD_WP_PIN GPIO_TO_PIN(2, 1) +#define DA830_MMCSD_CD_PIN GPIO_TO_PIN(2, 2) static int da830_evm_mmc_get_ro(int index) { return gpio_get_value(DA830_MMCSD_WP_PIN); } +static int da830_evm_mmc_get_cd(int index) +{ + return !gpio_get_value(DA830_MMCSD_CD_PIN); +} + static struct davinci_mmc_config da830_evm_mmc_config = { .get_ro = da830_evm_mmc_get_ro, + .get_cd = da830_evm_mmc_get_cd, .wires = 4, .max_freq = 50000000, .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED, @@ -262,6 +269,14 @@ static inline void da830_evm_init_mmc(void) } gpio_direction_input(DA830_MMCSD_WP_PIN); + ret = gpio_request(DA830_MMCSD_CD_PIN, "MMC CD\n"); + if (ret) { + pr_warning("da830_evm_init: can not open GPIO %d\n", + DA830_MMCSD_CD_PIN); + return; + } + gpio_direction_input(DA830_MMCSD_CD_PIN); + ret = da8xx_register_mmcsd0(&da830_evm_mmc_config); if (ret) { pr_warning("da830_evm_init: mmc/sd registration failed: %d\n",