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(-)
-- 1.9.3