From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756851Ab2JJRyK (ORCPT ); Wed, 10 Oct 2012 13:54:10 -0400 Received: from hqemgate04.nvidia.com ([216.228.121.35]:4751 "EHLO hqemgate04.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756200Ab2JJRxk (ORCPT ); Wed, 10 Oct 2012 13:53:40 -0400 X-PGP-Universal: processed; by hqnvupgp07.nvidia.com on Wed, 10 Oct 2012 10:42:36 -0700 From: Laxman Dewangan To: , , CC: , , Laxman Dewangan Subject: [PATCH V2 4/5] regmap: add API to get irq_domain from regmap irq Date: Wed, 10 Oct 2012 22:49:04 +0530 Message-ID: <1349889545-21517-5-git-send-email-ldewangan@nvidia.com> X-Mailer: git-send-email 1.7.1.1 In-Reply-To: <1349889545-21517-1-git-send-email-ldewangan@nvidia.com> References: <1349889545-21517-1-git-send-email-ldewangan@nvidia.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 Add API regmap_irq_get_irq_domain() for getting the irq domain from regmap irq. The irq domain created on result of regmap_add_irq_chip() from driver. This API is useful in mfd driver when driver add mfd sub devices. The sub devices IRQs can be passed through IORESOURCE_IRQ and it need to be mapped properly with device irq domain. The mfd_add_devices() creates mapping when adding sub devices and for this it is require to have irq domain. Signed-off-by: Laxman Dewangan --- Changes from V1: - Add stubbing of new API. - Add empty line between paragraph. drivers/base/regmap/regmap-irq.c | 16 ++++++++++++++++ include/linux/regmap.h | 8 ++++++++ 2 files changed, 24 insertions(+), 0 deletions(-) diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c index 5b6b1d8..70bce5f 100644 --- a/drivers/base/regmap/regmap-irq.c +++ b/drivers/base/regmap/regmap-irq.c @@ -458,3 +458,19 @@ int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq) return irq_create_mapping(data->domain, irq); } EXPORT_SYMBOL_GPL(regmap_irq_get_virq); + +/** + * regmap_irq_get_irq_domain(): Return IRQ domain for of the interrupt added. + * + * Useful for drivers who locally create mapping from irq_domain which is + * created on result of the call regmap_add_irq_chip(). + * + * @data: regmap_irq controller to operate on. + */ +struct irq_domain *regmap_irq_get_irq_domain(struct regmap_irq_chip_data *data) +{ + if (data) + return data->domain; + return NULL; +} +EXPORT_SYMBOL_GPL(regmap_irq_get_irq_domain); diff --git a/include/linux/regmap.h b/include/linux/regmap.h index e3bcc3f..d3216a7 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -317,6 +317,7 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *data); int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data); int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq); +struct irq_domain *regmap_irq_get_irq_domain(struct regmap_irq_chip_data *data); #else @@ -433,6 +434,13 @@ static inline struct regmap *dev_get_regmap(struct device *dev, return NULL; } +static inline struct irq_domain *regmap_irq_get_irq_domain( + struct regmap_irq_chip_data *data) +{ + WARN_ONCE(1, "regmap API is disabled"); + return NULL; +} + #endif #endif -- 1.7.1.1