From patchwork Thu Apr 23 17:45:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Walle X-Patchwork-Id: 215075 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6B40AC54FD0 for ; Thu, 23 Apr 2020 17:46:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4CC14218AC for ; Thu, 23 Apr 2020 17:46:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=walle.cc header.i=@walle.cc header.b="PYtnpbyT" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730044AbgDWRqi (ORCPT ); Thu, 23 Apr 2020 13:46:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46436 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730038AbgDWRqg (ORCPT ); Thu, 23 Apr 2020 13:46:36 -0400 Received: from ssl.serverraum.org (ssl.serverraum.org [IPv6:2a01:4f8:151:8464::1:2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 93A98C09B042; Thu, 23 Apr 2020 10:46:36 -0700 (PDT) Received: from apollo.fritz.box (unknown [IPv6:2a02:810c:c200:2e91:6257:18ff:fec4:ca34]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by ssl.serverraum.org (Postfix) with ESMTPSA id 9540923D06; Thu, 23 Apr 2020 19:46:34 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=walle.cc; s=mail2016061301; t=1587663995; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=C0mwyzOpo4Hci45ys2sqCNcGyNGL1Gk5vpcSqV75bMI=; b=PYtnpbyTDsSqVeej+oE4e4zzVxtag/2m9gR5aKhsA3zDrg6by5LPTvZzbF3wOVLhN0z6x0 NygYN2o92Xy9emcFz/5e4kcOyuconkSayIrYiVFOGhn7vW4e/q14pAtyslZJ74QR3ROrnU dwjFBKewH9NREEGCg8dEGoz8TF/O3H4= From: Michael Walle To: Andy Shevchenko , linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-pwm@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Linus Walleij , Bartosz Golaszewski , Rob Herring , Jean Delvare , Guenter Roeck , Lee Jones , Thierry Reding , =?utf-8?q?Uwe_Kleine-K?= =?utf-8?b?w7ZuaWc=?= , Wim Van Sebroeck , Shawn Guo , Li Yang , Thomas Gleixner , Jason Cooper , Marc Zyngier , Mark Brown , Greg Kroah-Hartman , Michael Walle Subject: [PATCH v3 09/16] gpiolib: Introduce gpiochip_irqchip_add_domain() Date: Thu, 23 Apr 2020 19:45:36 +0200 Message-Id: <20200423174543.17161-10-michael@walle.cc> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200423174543.17161-1-michael@walle.cc> References: <20200423174543.17161-1-michael@walle.cc> MIME-Version: 1.0 X-Spamd-Bar: ++++++ X-Rspamd-Server: web X-Rspamd-Queue-Id: 9540923D06 X-Spamd-Result: default: False [6.40 / 15.00]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; R_MISSING_CHARSET(2.50)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; TAGGED_RCPT(0.00)[dt]; MIME_GOOD(-0.10)[text/plain]; BROKEN_CONTENT_TYPE(1.50)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_SPAM(0.00)[1.007]; DKIM_SIGNED(0.00)[]; RCPT_COUNT_TWELVE(0.00)[25]; MID_CONTAINS_FROM(1.00)[]; RCVD_COUNT_ZERO(0.00)[0]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:31334, ipnet:2a02:810c:8000::/33, country:DE]; FREEMAIL_CC(0.00)[linaro.org,baylibre.com,kernel.org,suse.com,roeck-us.net,gmail.com,pengutronix.de,linux-watchdog.org,nxp.com,linutronix.de,lakedaemon.net,linuxfoundation.org,walle.cc]; SUSPICIOUS_RECIPS(1.50)[] X-Spam: Yes Sender: linux-watchdog-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org This connects an IRQ domain to a gpiochip and reuses gpiochip_to_irq(). Signed-off-by: Michael Walle --- drivers/gpio/gpiolib.c | 20 ++++++++++++++++++++ include/linux/gpio/driver.h | 3 +++ 2 files changed, 23 insertions(+) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 40f2d7f69be2..7b3d7f496b9a 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -2722,6 +2722,26 @@ int gpiochip_irqchip_add_key(struct gpio_chip *gc, } EXPORT_SYMBOL_GPL(gpiochip_irqchip_add_key); +/** + * gpiochip_irqchip_add_key() - adds an irqdomain to a gpiochip + * @gc: the gpiochip to add the irqchip to + * @domain: the irqdomain to add to the gpiochip + * + * This function adds an IRQ domain to the gpiochip. + */ +int gpiochip_irqchip_add_domain(struct gpio_chip *gc, + struct irq_domain *domain) +{ + if (!domain) + return -EINVAL; + + gc->to_irq = gpiochip_to_irq; + gc->irq.domain = domain; + + return 0; +} +EXPORT_SYMBOL_GPL(gpiochip_irqchip_add_domain); + #else /* CONFIG_GPIOLIB_IRQCHIP */ static inline int gpiochip_add_irqchip(struct gpio_chip *gc, diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index b8fc92c177eb..dfb1aa0ad4dc 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -599,6 +599,9 @@ int gpiochip_irqchip_add_key(struct gpio_chip *gc, bool gpiochip_irqchip_irq_valid(const struct gpio_chip *gc, unsigned int offset); +int gpiochip_irqchip_add_domain(struct gpio_chip *gc, + struct irq_domain *domain); + #ifdef CONFIG_LOCKDEP /*