From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Shevchenko Subject: [PATCH v1 2/6] software node: Allow register and unregister software node groups Date: Wed, 8 Apr 2020 19:09:02 +0300 Message-ID: <20200408160905.12101-3-andriy.shevchenko@linux.intel.com> References: <20200408160905.12101-1-andriy.shevchenko@linux.intel.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20200408160905.12101-1-andriy.shevchenko@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org To: Greg Kroah-Hartman , linux-kernel@vger.kernel.org, "Rafael J. Wysocki" , linux-acpi@vger.kernel.org, Heikki Krogerus , Hans de Goede , platform-driver-x86@vger.kernel.org, Darren Hart Cc: Andy Shevchenko List-Id: platform-driver-x86.vger.kernel.org Sometimes it's more convenient to register a set of individual software nodes grouped together. Add couple of functions for that. Signed-off-by: Andy Shevchenko --- drivers/base/swnode.c | 48 ++++++++++++++++++++++++++++++++++++++++ include/linux/property.h | 3 +++ 2 files changed, 51 insertions(+) diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c index de8d3543e8fe..2079937ddb51 100644 --- a/drivers/base/swnode.c +++ b/drivers/base/swnode.c @@ -726,6 +726,54 @@ void software_node_unregister_nodes(const struct software_node *nodes) } EXPORT_SYMBOL_GPL(software_node_unregister_nodes); +/** + * software_node_register_node_group - Register a group of software nodes + * @node_group: NULL terminated array of software node pointers to be registered + * + * Register multiple software nodes at once. + */ +int software_node_register_node_group(const struct software_node **node_group) +{ + unsigned int i; + int ret; + + if (!node_group) + return 0; + + for (i = 0; node_group[i]; i++) { + ret = software_node_register(node_group[i]); + if (ret) { + software_node_unregister_node_group(node_group); + return ret; + } + } + + return 0; +} +EXPORT_SYMBOL_GPL(software_node_register_node_group); + +/** + * software_node_unregister_node_group - Unregister a group of software nodes + * @node_group: NULL terminated array of software node pointers to be unregistered + * + * Unregister multiple software nodes at once. + */ +void software_node_unregister_node_group(const struct software_node **node_group) +{ + struct swnode *swnode; + unsigned int i; + + if (!node_group) + return; + + for (i = 0; node_group[i]; i++) { + swnode = software_node_to_swnode(node_group[i]); + if (swnode) + fwnode_remove_software_node(&swnode->fwnode); + } +} +EXPORT_SYMBOL_GPL(software_node_unregister_node_group); + /** * software_node_register - Register static software node * @node: The software node to be registered diff --git a/include/linux/property.h b/include/linux/property.h index d86de017c689..c7b5f3db36aa 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -440,6 +440,9 @@ software_node_find_by_name(const struct software_node *parent, int software_node_register_nodes(const struct software_node *nodes); void software_node_unregister_nodes(const struct software_node *nodes); +int software_node_register_node_group(const struct software_node **node_group); +void software_node_unregister_node_group(const struct software_node **node_group); + int software_node_register(const struct software_node *node); int software_node_notify(struct device *dev, unsigned long action); -- 2.25.1