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ACPI / bind: Redefine acpi_preset_companion()

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Modify acpi_preset_companion() to take a struct acpi_device pointer
instead of an ACPI handle as its second argument and redefine it as
a static inline wrapper around ACPI_COMPANION_SET() passing the
return value of acpi_find_child_device() directly as the second
argument to it.  Update its users to pass struct acpi_device
pointers instead of ACPI handles to it.

This allows some unnecessary acpi_bus_get_device() calls to be
avoided.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Aaron Lu <aaron.lu@intel.com>
Tested-by: Aaron Lu <aaron.lu@intel.com> # for ATA binding
This commit is contained in:
Rafael J. Wysocki 2013-11-28 23:58:28 +01:00
parent 11dcc75dba
commit 9c5ad36d98
5 changed files with 21 additions and 24 deletions
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6
include/linux/acpi.h
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@ -53,6 +53,12 @@ static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
#define ACPI_COMPANION_SET(dev, adev) ACPI_COMPANION(dev) = (adev)
#define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
static inline void acpi_preset_companion(struct device *dev,
struct acpi_device *parent, u64 addr)
{
ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL));
}
static inline const char *acpi_dev_name(struct acpi_device *adev)
{
return dev_name(&adev->dev);