Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754937AbbEPJoh (ORCPT ); Sat, 16 May 2015 05:44:37 -0400 Received: from mail.kmu-office.ch ([178.209.48.109]:46520 "EHLO mail.kmu-office.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754135AbbEPJoa (ORCPT ); Sat, 16 May 2015 05:44:30 -0400 From: Stefan Agner To: shawn.guo@linaro.org, kernel@pengutronix.de, jason@lakedaemon.net Cc: marc.zyngier@arm.com, linux@arm.linux.org.uk, u.kleine-koenig@pengutronix.de, olof@lixom.net, arnd@arndb.de, daniel.lezcano@linaro.org, tglx@linutronix.de, mark.rutland@arm.com, pawel.moll@arm.com, robh+dt@kernel.org, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, mcoquelin.stm32@gmail.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Stefan Agner Subject: [PATCH v7 02/13] genirq: Add irq_chip_(enable|disable)_parent Date: Sat, 16 May 2015 11:44:14 +0200 Message-Id: <1431769465-26867-3-git-send-email-stefan@agner.ch> X-Mailer: git-send-email 2.4.1 In-Reply-To: <1431769465-26867-1-git-send-email-stefan@agner.ch> References: <1431769465-26867-1-git-send-email-stefan@agner.ch> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2306 Lines: 71 Add helper irq_chip_enable_parent and irq_chip_disable_parent. The helper implement the default behavior in case irq_enable or irq_disable is not implemented for the parent interrupt chip, which is calling the irq_mask or irq_unmask respectively. Signed-off-by: Stefan Agner --- include/linux/irq.h | 2 ++ kernel/irq/chip.c | 28 ++++++++++++++++++++++++++++ 2 files changed, 30 insertions(+) diff --git a/include/linux/irq.h b/include/linux/irq.h index 62c6901..2633061 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -458,6 +458,8 @@ extern void handle_nested_irq(unsigned int irq); extern int irq_chip_compose_msi_msg(struct irq_data *data, struct msi_msg *msg); #ifdef CONFIG_IRQ_DOMAIN_HIERARCHY +extern void irq_chip_enable_parent(struct irq_data *data); +extern void irq_chip_disable_parent(struct irq_data *data); extern void irq_chip_ack_parent(struct irq_data *data); extern int irq_chip_retrigger_hierarchy(struct irq_data *data); extern void irq_chip_mask_parent(struct irq_data *data); diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index eb9a4ea..2456fe8 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -876,6 +876,34 @@ void irq_cpu_offline(void) #ifdef CONFIG_IRQ_DOMAIN_HIERARCHY /** + * irq_chip_enable_parent - Enable the parent interrupt (defaults to unmask if + * NULL) + * @data: Pointer to interrupt specific data + */ +void irq_chip_enable_parent(struct irq_data *data) +{ + data = data->parent_data; + if (data->chip->irq_enable) + data->chip->irq_enable(data); + else + data->chip->irq_unmask(data); +} + +/** + * irq_chip_disable_parent - Disable the parent interrupt (defaults to mask if + * NULL) + * @data: Pointer to interrupt specific data + */ +void irq_chip_disable_parent(struct irq_data *data) +{ + data = data->parent_data; + if (data->chip->irq_disable) + data->chip->irq_disable(data); + else + data->chip->irq_mask(data); +} + +/** * irq_chip_ack_parent - Acknowledge the parent interrupt * @data: Pointer to interrupt specific data */ -- 2.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/