[PATCH v4 0/2] ASoC: da7219: Convert driver to use generic FW functions

[Adam Thomson <Adam.Thomson.Opensource@diasemi.com>]

This patch set converts the da7219 codec driver to use device/fwnode functions
to access properties, instead of the DT only of_* functions, allowing ACPI
to be used as well.

The DT bindings for da7219 have a device node for the main codec properties,
and a named child node (da7219_aad), which contains all of the accessory
detection related properties for the device. ACPI also supports this kind of
FW hierarchy (data only sub-nodes), but some support in the kernel needs to be
added to take make use of this in driver code.

The first patch adds functions to allow searching for a named child node of a
device, for both DT and ACPI, and the second patch updates the codec driver to
use the standard device/fwnode calls, including this new function.

These changes are based on the v4.7-rc4 kernel.

Changes in v4:
 - Rebase to v4.7-rc4
 - Use strcmp() in acpi_data_node_match() for matching ACPI data nodes.

Changes in v3:
 - Use of_node_cmp() in device_get_named_child_node() to match DT node.

Changes in v2:
 - Rebase to v4.7-rc1
 - Small updates to codec patch based on previous reviewer comments

Adam Thomson (2):
  device property: Add function to search for named child of device
  ASoC: da7219: Convert driver to use generic device/fwnode functions

 drivers/base/property.c       |  28 ++++++++++++
 include/acpi/acpi_bus.h       |   7 +++
 include/linux/acpi.h          |   6 +++
 include/linux/of.h            |  14 +++---
 include/linux/property.h      |   3 ++
 sound/soc/codecs/da7219-aad.c | 103 +++++++++++++++++++++---------------------
 sound/soc/codecs/da7219.c     |  34 +++++++-------
 7 files changed, 119 insertions(+), 76 deletions(-)

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1.9.3