From patchwork Wed Jan 17 16:28:05 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 124857 Delivered-To: patch@linaro.org Received: by 10.46.62.1 with SMTP id l1csp108091lja; Wed, 17 Jan 2018 08:43:13 -0800 (PST) X-Google-Smtp-Source: ACJfBov2tFzybDSJP1nbOJ40C0iY/n8pAIyvoihSZhbPNEPqfINWWATfvRMn6qXd0uYURfXcvmSC X-Received: by 10.84.164.199 with SMTP id l7mr9153138plg.268.1516207393699; Wed, 17 Jan 2018 08:43:13 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1516207393; cv=none; d=google.com; s=arc-20160816; b=mHzF40TGfRcS4D+i+X/kF6duUbffXO+TNYD6a0/ygPURqZlcM8AV6uLQvs5FtsFt2L J9lDIOK5iIft2bIpCrKPM/QAxzvlPrxp9N1kCpuDeqB1kjV/2haEbqNMnNwWFD6YaETb sXo3ii5Xzk+cvof0gp1eHlF2seTGx7qzMQRJKSZbW5xIZXFJPtNZrfrBlAcCkgYmAFUM 6tz91aB1QiiXU2znIHju4IwEik6RYwCSbYD7pjAgetcM1SCiHmdv4oX9uUtnkOs0ZCzU TvnAF4c9y8aEwPfz5iQkq1txJ/x83qxoXXLfo8S8L2xwMB4kL7JaUepp2JJe6M+btRb6 Wd2Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:in-reply-to:message-id:date :subject:cc:to:from:dkim-signature:dkim-filter :arc-authentication-results; bh=Ezad6ThRqzRJnQ+xDo36qS+fesboIPKG/bSZMu5uCHg=; b=eMQR5cNP8xRCm4BsLxtO9DHu4f9J1/9odQjHmo0BqemFz5sjIkxjCpOAcsRnlXXuO8 pItyg61M2L0QT6PgY8NXm6tsO0lySlA/Me/kaU1LKwQiy6BPdq0jUBOSZHSAI4QSyPug 8ZdrqO20JEdXd67MWC5uA7GfyNQhftc9O4i1dJxifbBfx39ch682cZM/cTfeXMZJeuKl 4ZEIgE+tAJsH3TolLXUbgwpFdrDqBEsnpRRI4PfwVPeCYBrrFbgs1k2jb8wVdxFtIysY v79vhuDeEwXqV8Bq7s2mVAZPkNiOwgH7Dss/xSdvlcP68nbuHF+jRnOgDnmIfpAPPPfM mT2w== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@nifty.com header.s=dec2015msa header.b=TUh3V9vV; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id s15si4153362pgf.99.2018.01.17.08.42.59; Wed, 17 Jan 2018 08:43:13 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@nifty.com header.s=dec2015msa header.b=TUh3V9vV; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932218AbeAQQmh (ORCPT + 28 others); Wed, 17 Jan 2018 11:42:37 -0500 Received: from conuserg-08.nifty.com ([210.131.2.75]:36682 "EHLO conuserg-08.nifty.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753794AbeAQQ3d (ORCPT ); Wed, 17 Jan 2018 11:29:33 -0500 Received: from grover.sesame (FL1-125-199-20-195.osk.mesh.ad.jp [125.199.20.195]) (authenticated) by conuserg-08.nifty.com with ESMTP id w0HGSIKp014790; Thu, 18 Jan 2018 01:28:23 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conuserg-08.nifty.com w0HGSIKp014790 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1516206504; bh=Ezad6ThRqzRJnQ+xDo36qS+fesboIPKG/bSZMu5uCHg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TUh3V9vV8dy968IvVvSxIIKpo5J+eNu+iu6ftbugq82PqQNLBKuyIRklvGNHRaaNK v1/WMEkWva1T7L5hURQWIIddQkotLJlaxMESZerPMKbgXbTOhLNwWYN1CSkFSniTi0 MlxGq4/dEyqQN+C1i4S+MiSErsX1PB3/8rR/TorFGyutJlBDjX1Y/7hlXTYEhifJy0 YJhVvWmRfUBvZvehv2IR+lSteB4/+rmJdeWb2jI9mj8q0pFBNdTJZStoocPzVEwWUH 3FTDHhn/75sJSUMBreuY1O4Qo6TN8RDfKBoPtWavBBWa5Dp3w2VV8YUXNPt+z3PInd hwBDPVrgkXGtA== X-Nifty-SrcIP: [125.199.20.195] From: Masahiro Yamada To: linux-mmc@vger.kernel.org, Wolfram Sang Cc: Ulf Magnusson , Geert Uytterhoeven , Simon Horman , Yoshihiro Shimoda , linux-renesas-soc@vger.kernel.org, Masahiro Yamada , linux-kernel@vger.kernel.org, Ulf Hansson Subject: [PATCH v3 05/16] mmc: slot-gpio: add a helper to check capability of GPIO WP detection Date: Thu, 18 Jan 2018 01:28:05 +0900 Message-Id: <1516206496-16612-6-git-send-email-yamada.masahiro@socionext.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1516206496-16612-1-git-send-email-yamada.masahiro@socionext.com> References: <1516206496-16612-1-git-send-email-yamada.masahiro@socionext.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Like mmc_can_gpio_cd(), mmc_can_gpio_ro() will also be useful for host drivers to know whether GPIO write-protect detection is supported. Signed-off-by: Masahiro Yamada --- Changes in v3: - newly added Changes in v2: None drivers/mmc/core/slot-gpio.c | 8 ++++++++ include/linux/mmc/slot-gpio.h | 1 + 2 files changed, 9 insertions(+) -- 2.7.4 Reviewed-by: Wolfram Sang diff --git a/drivers/mmc/core/slot-gpio.c b/drivers/mmc/core/slot-gpio.c index f7c6e05..3698b05 100644 --- a/drivers/mmc/core/slot-gpio.c +++ b/drivers/mmc/core/slot-gpio.c @@ -305,3 +305,11 @@ int mmc_gpiod_request_ro(struct mmc_host *host, const char *con_id, return 0; } EXPORT_SYMBOL(mmc_gpiod_request_ro); + +bool mmc_can_gpio_ro(struct mmc_host *host) +{ + struct mmc_gpio *ctx = host->slot.handler_priv; + + return ctx->ro_gpio ? true : false; +} +EXPORT_SYMBOL(mmc_can_gpio_ro); diff --git a/include/linux/mmc/slot-gpio.h b/include/linux/mmc/slot-gpio.h index 82f0d28..91f1ba0 100644 --- a/include/linux/mmc/slot-gpio.h +++ b/include/linux/mmc/slot-gpio.h @@ -33,5 +33,6 @@ void mmc_gpio_set_cd_isr(struct mmc_host *host, irqreturn_t (*isr)(int irq, void *dev_id)); void mmc_gpiod_request_cd_irq(struct mmc_host *host); bool mmc_can_gpio_cd(struct mmc_host *host); +bool mmc_can_gpio_ro(struct mmc_host *host); #endif