[PATCH v2 0/4] devres: dma-mapping: Introducing new functions

[Eli Billauer <eli.billauer@gmail.com>]

This patchset consists of new functions to the managed device resource
API, followed by a patch for the Xillybus driver, which is my motivation
and what I tested with.

This is a resubmission after changing the API slightly.

Rationale: While migrating the staging/xillybus driver to rely completely on
managed resources, some functionalities were missing, and hence added:

* dmam_map_single()
* dmam_unmap_single()
* pcim_map_single()
* pcim_unmap_single()

Tejun suggested that dma_map_single_attrs() should have a managed version as
well. The second patch in this set turns dmam_map_single() into
dma_map_single_attrs(), and implements the former as a macro. Functions added:

* dmam_map_single_attrs()
* dmam_unmap_single_attrs()

Xillybus' driver works with and without this patch (depends on patches #1 and #3
only).

Thanks,
   Eli

Eli Billauer (4):
  dma-mapping: Add devm_ interface for dma_map_single()
  dma-mapping: Add devm_ interface for dma_map_single_attrs()
  dma-mapping: pci: Add devm_ interface for pci_map_single
  staging: xillybus: Use devm_ API for memory allocation and DMA
    mapping

 Documentation/driver-model/devres.txt    |    6 +
 drivers/base/dma-mapping.c               |  106 +++++++++++++++++
 drivers/staging/xillybus/xillybus.h      |   38 +------
 drivers/staging/xillybus/xillybus_core.c |  186 +++++++++---------------------
 drivers/staging/xillybus/xillybus_of.c   |   61 +---------
 drivers/staging/xillybus/xillybus_pcie.c |   54 ++--------
 include/asm-generic/dma-mapping-common.h |    3 +
 include/asm-generic/pci-dma-compat.h     |   18 +++
 include/linux/dma-mapping.h              |    8 +-
 9 files changed, 214 insertions(+), 266 deletions(-)

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1.7.2.3