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ACPICA: Add post-order callback to acpi_walk_namespace

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The existing interface only has a pre-order callback. This change
adds an additional parameter for a post-order callback which will
be more useful for bus scans. ACPICA BZ 779.

Also update the external calls to acpi_walk_namespace.

http://www.acpica.org/bugzilla/show_bug.cgi?id=779

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Lin Ming
2009-11-13 10:06:08 +08:00
committed by Len Brown
parent 7d5d05d070
commit 2263576cfc
29 changed files with 216 additions and 171 deletions
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6
drivers/acpi/video_detect.c
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@@ -101,7 +101,7 @@ long acpi_is_video_device(struct acpi_device *device)
/* Only check for backlight functionality if one of the above hit. */
if (video_caps)
acpi_walk_namespace(ACPI_TYPE_DEVICE, device->handle,
ACPI_UINT32_MAX, acpi_backlight_cap_match,
ACPI_UINT32_MAX, acpi_backlight_cap_match, NULL,
&video_caps, NULL);
return video_caps;
@@ -151,7 +151,7 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle)
if (!graphics_handle) {
/* Only do the global walk through all graphics devices once */
acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX, find_video,
ACPI_UINT32_MAX, find_video, NULL,
&caps, NULL);
/* There might be boot param flags set already... */
acpi_video_support |= caps;
@@ -173,7 +173,7 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle)
return 0;
}
acpi_walk_namespace(ACPI_TYPE_DEVICE, graphics_handle,
ACPI_UINT32_MAX, find_video,
ACPI_UINT32_MAX, find_video, NULL,
&caps, NULL);
}
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "We have 0x%lX video support %s %s\n",