From patchwork Fri Jun 10 08:49:12 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Linus Walleij X-Patchwork-Id: 1805 Return-Path: Delivered-To: unknown Received: from imap.gmail.com (74.125.45.109) by localhost6.localdomain6 with IMAP4-SSL; 10 Jun 2011 20:11:53 -0000 Delivered-To: patches@linaro.org Received: by 10.52.181.10 with SMTP id ds10cs299781vdc; Fri, 10 Jun 2011 01:49:42 -0700 (PDT) Received: by 10.213.8.139 with SMTP id h11mr346707ebh.135.1307695781549; Fri, 10 Jun 2011 01:49:41 -0700 (PDT) Received: from eu1sys200aog103.obsmtp.com (eu1sys200aog103.obsmtp.com [207.126.144.115]) by mx.google.com with SMTP id w7si6975904eef.47.2011.06.10.01.49.34 (version=TLSv1/SSLv3 cipher=OTHER); Fri, 10 Jun 2011 01:49:41 -0700 (PDT) Received-SPF: neutral (google.com: 207.126.144.115 is neither permitted nor denied by best guess record for domain of linus.walleij@stericsson.com) client-ip=207.126.144.115; Authentication-Results: mx.google.com; spf=neutral (google.com: 207.126.144.115 is neither permitted nor denied by best guess record for domain of linus.walleij@stericsson.com) smtp.mail=linus.walleij@stericsson.com Received: from beta.dmz-us.st.com ([167.4.1.35]) (using TLSv1) by eu1sys200aob103.postini.com ([207.126.147.11]) with SMTP ID DSNKTfHanE/VkYcqCIMRP62tuFSIKD/xdqpq@postini.com; Fri, 10 Jun 2011 08:49:41 UTC Received: from zeta.dmz-us.st.com (ns4.st.com [167.4.16.71]) by beta.dmz-us.st.com (STMicroelectronics) with ESMTP id 3D7FF3F; Fri, 10 Jun 2011 08:49:17 +0000 (GMT) Received: from relay1.stm.gmessaging.net (unknown [10.230.100.17]) by zeta.dmz-us.st.com (STMicroelectronics) with ESMTP id C0F9D4E; Fri, 10 Jun 2011 08:49:16 +0000 (GMT) Received: from exdcvycastm022.EQ1STM.local (alteon-source-exch [10.230.100.61]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (Client CN "exdcvycastm022", Issuer "exdcvycastm022" (not verified)) by relay1.stm.gmessaging.net (Postfix) with ESMTPS id 67CE624C2F3; Fri, 10 Jun 2011 10:49:11 +0200 (CEST) Received: from localhost.localdomain (10.230.100.153) by smtp.stericsson.com (10.230.100.30) with Microsoft SMTP Server (TLS) id 8.3.83.0; Fri, 10 Jun 2011 10:49:16 +0200 From: Linus Walleij To: Grant Likely , , Cc: Lee Jones , Linus Walleij Subject: [PATCH 1/2] gpio: expose gpio_to_chip() Date: Fri, 10 Jun 2011 10:49:12 +0200 Message-ID: <1307695752-28051-1-git-send-email-linus.walleij@stericsson.com> X-Mailer: git-send-email 1.7.3.2 MIME-Version: 1.0 From: Linus Walleij This makes the gpio_to_chip() function available to drivers. The usecase is when you want to add a few chip-specific operations apart from the ones exposed in struct gpio_chip. Signed-off-by: Linus Walleij --- drivers/gpio/gpiolib.c | 2 +- include/asm-generic/gpio.h | 1 + 2 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index a971e3d..dc315e9 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -114,7 +114,7 @@ static int gpio_ensure_requested(struct gpio_desc *desc, unsigned offset) } /* caller holds gpio_lock *OR* gpio is marked as requested */ -static inline struct gpio_chip *gpio_to_chip(unsigned gpio) +struct gpio_chip *gpio_to_chip(unsigned gpio) { return gpio_desc[gpio].chip; } diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index fcdcb5d..dd8c815 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -132,6 +132,7 @@ struct gpio_chip { #endif }; +extern struct gpio_chip *gpio_to_chip(unsigned gpio); extern const char *gpiochip_is_requested(struct gpio_chip *chip, unsigned offset); extern int __must_check gpiochip_reserve(int start, int ngpio);