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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-03-16 23:49:03 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-03-16 23:49:03 +0100 |
| commit | ce793486e23e0162a732c605189c8028e0910e86 (patch) | |
| tree | bc36cffe7005afecc2f9db436dedd107773108b0 /include/linux/device.h | |
| parent | 06e5801b8cb3fc057d88cb4dc03c0b64b2744cda (diff) | |
| download | lwn-ce793486e23e0162a732c605189c8028e0910e86.tar.gz lwn-ce793486e23e0162a732c605189c8028e0910e86.zip | |
driver core / ACPI: Represent ACPI companions using fwnode_handle
Now that we have struct fwnode_handle, we can use that to point to
ACPI companions from struct device objects instead of pointing to
struct acpi_device directly.
There are two benefits from that. First, the somewhat ugly and
hackish struct acpi_dev_node can be dropped and, second, the same
struct fwnode_handle pointer can be used in the future to point
to other (non-ACPI) firmware device node types.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Grant Likely <grant.likely@linaro.org>
Diffstat (limited to 'include/linux/device.h')
| -rw-r--r-- | include/linux/device.h | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index 0eb8ee2dc6d1..badef20b876a 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -38,6 +38,7 @@ struct class; struct subsys_private; struct bus_type; struct device_node; +struct fwnode_handle; struct iommu_ops; struct iommu_group; @@ -650,14 +651,6 @@ struct device_dma_parameters { unsigned long segment_boundary_mask; }; -struct acpi_device; - -struct acpi_dev_node { -#ifdef CONFIG_ACPI - struct acpi_device *companion; -#endif -}; - /** * struct device - The basic device structure * @parent: The device's "parent" device, the device to which it is attached. @@ -703,7 +696,7 @@ struct acpi_dev_node { * @cma_area: Contiguous memory area for dma allocations * @archdata: For arch-specific additions. * @of_node: Associated device tree node. - * @acpi_node: Associated ACPI device node. + * @fwnode: Associated device node supplied by platform firmware. * @devt: For creating the sysfs "dev". * @id: device instance * @devres_lock: Spinlock to protect the resource of the device. @@ -779,7 +772,7 @@ struct device { struct dev_archdata archdata; struct device_node *of_node; /* associated device tree node */ - struct acpi_dev_node acpi_node; /* associated ACPI device node */ + struct fwnode_handle *fwnode; /* firmware device node */ dev_t devt; /* dev_t, creates the sysfs "dev" */ u32 id; /* device instance */ |