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authorPhilipp Zabel <p.zabel@pengutronix.de>2013-04-29 16:17:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-29 18:28:13 -0700
commit9375db07adeaeea5f5ea7ca0463a8b371d71ddbb (patch)
tree8825d1985a7bd6acd9e13de4594c574c81dd11fe /drivers/misc
parent3119b487e03650b51589a86aac33098b7cc2a09e (diff)
downloadlinux-9375db07adeaeea5f5ea7ca0463a8b371d71ddbb.tar.gz
genalloc: add devres support, allow to find a managed pool by device
This patch adds three exported functions to lib/genalloc.c: devm_gen_pool_create, dev_get_gen_pool, and of_get_named_gen_pool. devm_gen_pool_create is a managed version of gen_pool_create that keeps track of the pool via devres and allows the management code to automatically destroy it after device removal. dev_get_gen_pool retrieves the gen_pool for a given device, if it was created with devm_gen_pool_create, using devres_find. of_get_named_gen_pool retrieves the gen_pool for a given device node and property name, where the property must contain a phandle pointing to a platform device node. The corresponding platform device is then fed into dev_get_gen_pool and the resulting gen_pool is returned. [akpm@linux-foundation.org: make the of_get_named_gen_pool() stub static, fixing a zillion link errors] [akpm@linux-foundation.org: squish "struct device declared inside parameter list" warning] Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Grant Likely <grant.likely@secretlab.ca> Tested-by: Michal Simek <monstr@monstr.eu> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Matt Porter <mporter@ti.com> Cc: Dong Aisheng <dong.aisheng@linaro.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Javier Martin <javier.martin@vista-silicon.com> Cc: Huang Shijie <shijie8@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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