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| author | Herve Codina <herve.codina@bootlin.com> | 2024-06-14 19:32:17 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2024-06-17 15:48:14 +0200 |
| commit | 0c5b29a6dc7b463b6072da8cef43800008728ff3 (patch) | |
| tree | f463dbc6fb6ad9a0b8740a24486a43819968cc33 | |
| parent | e6f67ce32e8e6dcbadf42dc435fbc9002cabf1f9 (diff) | |
| download | linux-stable-0c5b29a6dc7b463b6072da8cef43800008728ff3.tar.gz linux-stable-0c5b29a6dc7b463b6072da8cef43800008728ff3.tar.bz2 linux-stable-0c5b29a6dc7b463b6072da8cef43800008728ff3.zip | |
irqdomain: Add a resource managed version of irq_domain_instantiate()
Add a devres version of irq_domain_instantiate().
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240614173232.1184015-17-herve.codina@bootlin.com
| -rw-r--r-- | include/linux/irqdomain.h | 2 | ||||
| -rw-r--r-- | kernel/irq/devres.c | 41 |
2 files changed, 43 insertions, 0 deletions
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index 5540b22a755c..8820317582c4 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -304,6 +304,8 @@ struct irq_domain_info { }; struct irq_domain *irq_domain_instantiate(const struct irq_domain_info *info); +struct irq_domain *devm_irq_domain_instantiate(struct device *dev, + const struct irq_domain_info *info); struct irq_domain *__irq_domain_add(struct fwnode_handle *fwnode, unsigned int size, irq_hw_number_t hwirq_max, int direct_max, diff --git a/kernel/irq/devres.c b/kernel/irq/devres.c index f6e5515ee077..b3e98668f4dd 100644 --- a/kernel/irq/devres.c +++ b/kernel/irq/devres.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/module.h> #include <linux/interrupt.h> +#include <linux/irqdomain.h> #include <linux/device.h> #include <linux/gfp.h> #include <linux/irq.h> @@ -282,3 +283,43 @@ int devm_irq_setup_generic_chip(struct device *dev, struct irq_chip_generic *gc, } EXPORT_SYMBOL_GPL(devm_irq_setup_generic_chip); #endif /* CONFIG_GENERIC_IRQ_CHIP */ + +#ifdef CONFIG_IRQ_DOMAIN +static void devm_irq_domain_remove(struct device *dev, void *res) +{ + struct irq_domain **domain = res; + + irq_domain_remove(*domain); +} + +/** + * devm_irq_domain_instantiate() - Instantiate a new irq domain data for a + * managed device. + * @dev: Device to instantiate the domain for + * @info: Domain information pointer pointing to the information for this + * domain + * + * Return: A pointer to the instantiated irq domain or an ERR_PTR value. + */ +struct irq_domain *devm_irq_domain_instantiate(struct device *dev, + const struct irq_domain_info *info) +{ + struct irq_domain *domain; + struct irq_domain **dr; + + dr = devres_alloc(devm_irq_domain_remove, sizeof(*dr), GFP_KERNEL); + if (!dr) + return ERR_PTR(-ENOMEM); + + domain = irq_domain_instantiate(info); + if (!IS_ERR(domain)) { + *dr = domain; + devres_add(dev, dr); + } else { + devres_free(dr); + } + + return domain; +} +EXPORT_SYMBOL_GPL(devm_irq_domain_instantiate); +#endif /* CONFIG_IRQ_DOMAIN */ |