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driver core / ACPI: Represent ACPI companions using fwnode_handle

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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>
This commit is contained in:
Rafael J. Wysocki
2015-03-16 23:49:03 +01:00
parent 06e5801b8c
commit ce793486e2
12 changed files with 44 additions and 31 deletions
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11
include/linux/property.h
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@@ -13,6 +13,7 @@
#ifndef _LINUX_PROPERTY_H_
#define _LINUX_PROPERTY_H_
#include <linux/fwnode.h>
#include <linux/types.h>
struct device;
@@ -40,16 +41,6 @@ int device_property_read_string_array(struct device *dev, const char *propname,
int device_property_read_string(struct device *dev, const char *propname,
const char **val);
enum fwnode_type {
FWNODE_INVALID = 0,
FWNODE_OF,
FWNODE_ACPI,
};
struct fwnode_handle {
enum fwnode_type type;
};
bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname);
int fwnode_property_read_u8_array(struct fwnode_handle *fwnode,
const char *propname, u8 *val,