From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751966AbbHLRsf (ORCPT ); Wed, 12 Aug 2015 13:48:35 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:37834 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751345AbbHLRq6 (ORCPT ); Wed, 12 Aug 2015 13:46:58 -0400 From: Grygorii Strashko To: , , CC: , , , , , , , Grygorii Strashko Subject: [PATCH v2 3/6] genirq: introduce irq_chip_set_type_parent() helper Date: Wed, 12 Aug 2015 20:45:59 +0300 Message-ID: <1439401562-28874-4-git-send-email-grygorii.strashko@ti.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1439401562-28874-1-git-send-email-grygorii.strashko@ti.com> References: <1439401562-28874-1-git-send-email-grygorii.strashko@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It's expected to use this helper when the current domain doesn't implement .irq_set_type(), but expect the parent to do so. Signed-off-by: Grygorii Strashko --- include/linux/irq.h | 1 + kernel/irq/chip.c | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+) diff --git a/include/linux/irq.h b/include/linux/irq.h index 92188b0..51744bc 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -484,6 +484,7 @@ extern int irq_chip_set_affinity_parent(struct irq_data *data, extern int irq_chip_set_wake_parent(struct irq_data *data, unsigned int on); extern int irq_chip_set_vcpu_affinity_parent(struct irq_data *data, void *vcpu_info); +extern int irq_chip_set_type_parent(struct irq_data *data, unsigned int type); #endif /* Handling of unhandled and spurious interrupts: */ diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index bdb1b9d..b48938b 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -985,6 +985,26 @@ int irq_chip_set_affinity_parent(struct irq_data *data, } /** + * irq_chip_set_type_parent - Set IRQ type on the parent interrupt + * @data: Pointer to interrupt specific data + * @type: IRQ_TYPE_{LEVEL,EDGE}_* value - see include/linux/irq.h + * + * Conditional, as the underlying parent chip might not implement it. + */ +int irq_chip_set_type_parent(struct irq_data *data, unsigned int type) +{ + data = data->parent_data; + + if (irq_data_get_irq_chip(data)->flags & IRQCHIP_SKIP_SET_WAKE) + return 0; + + if (data->chip->irq_set_type) + return data->chip->irq_set_type(data, type); + + return -ENOSYS; +} + +/** * irq_chip_retrigger_hierarchy - Retrigger an interrupt in hardware * @data: Pointer to interrupt specific data * -- 2.5.0