diff options
| -rw-r--r-- | drivers/mfd/mfd-core.c | 38 | ||||
| -rw-r--r-- | include/linux/mfd/core.h | 4 |
2 files changed, 42 insertions, 0 deletions
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c index 409da01..4b4c1d4 100644 --- a/drivers/mfd/mfd-core.c +++ b/drivers/mfd/mfd-core.c @@ -334,6 +334,44 @@ void mfd_remove_devices(struct device *parent) } EXPORT_SYMBOL(mfd_remove_devices); +static void devm_mfd_dev_release(struct device *dev, void *res) +{ + mfd_remove_devices(dev); +} + +/** + * devm_mfd_add_devices - Resource managed version of mfd_add_devices() + * + * Returns 0 on success or an appropriate negative error number on failure. + * All child-devices of the MFD will automatically be removed when it gets + * unbinded. + */ +int devm_mfd_add_devices(struct device *dev, int id, + const struct mfd_cell *cells, int n_devs, + struct resource *mem_base, + int irq_base, struct irq_domain *domain) +{ + struct device **ptr; + int ret; + + ptr = devres_alloc(devm_mfd_dev_release, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return -ENOMEM; + + ret = mfd_add_devices(dev, id, cells, n_devs, mem_base, + irq_base, domain); + if (ret < 0) { + devres_free(ptr); + return ret; + } + + *ptr = dev; + devres_add(dev, ptr); + + return ret; +} +EXPORT_SYMBOL(devm_mfd_add_devices); + int mfd_clone_cell(const char *cell, const char **clones, size_t n_clones) { struct mfd_cell cell_entry; diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h index bc6f7e0..4a0268a 100644 --- a/include/linux/mfd/core.h +++ b/include/linux/mfd/core.h @@ -131,4 +131,8 @@ static inline int mfd_add_hotplug_devices(struct device *parent, extern void mfd_remove_devices(struct device *parent); +extern int devm_mfd_add_devices(struct device *dev, int id, + const struct mfd_cell *cells, int n_devs, + struct resource *mem_base, + int irq_base, struct irq_domain *irq_domain); #endif |