Revert "Move xen patchset to new version's subdir."

[people/pmueller/ipfire-2.x.git] / src / patches / suse-2.6.27.31 / patches.arch / 0000-ACPI-video-Ignore-devices-not-present.patch

diff --git a/src/patches/suse-2.6.27.31/patches.arch/0000-ACPI-video-Ignore-devices-not-present.patch b/src/patches/suse-2.6.27.31/patches.arch/0000-ACPI-video-Ignore-devices-not-present.patch
deleted file mode 100644 (file)
index 794f5e7..0000000
--- a/src/patches/suse-2.6.27.31/patches.arch/0000-ACPI-video-Ignore-devices-not-present.patch
+++ /dev/null
@@ -1,118 +0,0 @@
-From: Thomas Renninger <trenn@suse.de>
-Subject: ACPI: video: Ignore devices that aren't present in hardware
-Patch-Mainline: queued for .28 in Len's/ak's ACPI tree
-
-commit ad9ed8385ed6ec5be8da7094db911c824258ceec
-
-    This is a reimplemention of commit
-    0119509c4fbc9adcef1472817fda295334612976
-    from Matthew Garrett <mjg59@srcf.ucam.org>
-    
-    This patch got removed because of a regression: ThinkPads with a
-    Intel graphics card and an Integrated Graphics Device BIOS implementation
-    stopped working.
-    In fact, they only worked because the ACPI device of the discrete, the
-    wrong one, got used (via int10). So ACPI functions were poking on the wrong
-    hardware used which is a sever bug.
-    The next patch provides support for above ThinkPads to be able to
-    switch brightness via the legacy thinkpad_acpi driver and automatically
-    detect when to use it.
-    
-    Original commit message from Matthew Garrett:
-        Vendors often ship machines with a choice of integrated or discrete
-        graphics, and use the same DSDT for both. As a result, the ACPI video
-        module will locate devices that may not exist on this specific platform.
-        Attempt to determine whether the device exists or not, and abort the
-        device creation if it doesn't.
-    
-    http://bugzilla.kernel.org/show_bug.cgi?id=9614
-    
-    Signed-off-by: Thomas Renninger <trenn@suse.de>
-    Signed-off-by: Andi Kleen <ak@linux.intel.com>
-
----
- drivers/acpi/glue.c     |   40 ++++++++++++++++++++++++++++++++++++++++
- drivers/acpi/video.c    |    7 ++++++-
- include/acpi/acpi_bus.h |    2 ++
- 3 files changed, 48 insertions(+), 1 deletion(-)
-
---- a/drivers/acpi/glue.c
-+++ b/drivers/acpi/glue.c
-@@ -140,6 +140,46 @@ struct device *acpi_get_physical_device(
- 
- EXPORT_SYMBOL(acpi_get_physical_device);
- 
-+/* ToDo: When a PCI bridge is found, return the PCI device behind the bridge
-+ *       This should work in general, but did not on a Lenovo T61 for the
-+ *     graphics card. But this must be fixed when the PCI device is
-+ *       bound and the kernel device struct is attached to the acpi device
-+ * Note: A success call will increase reference count by one
-+ *       Do call put_device(dev) on the returned device then
-+ */
-+struct device *acpi_get_physical_pci_device(acpi_handle handle)
-+{
-+      struct device *dev;
-+      long long device_id;
-+      acpi_status status;
-+
-+      status =
-+              acpi_evaluate_integer(handle, "_ADR", NULL, &device_id);
-+
-+      if (ACPI_FAILURE(status))
-+              return NULL;
-+
-+      /* We need to attempt to determine whether the _ADR refers to a
-+         PCI device or not. There's no terribly good way to do this,
-+         so the best we can hope for is to assume that there'll never
-+         be a device in the host bridge */
-+      if (device_id >= 0x10000) {
-+              /* It looks like a PCI device. Does it exist? */
-+              dev = acpi_get_physical_device(handle);
-+      } else {
-+              /* It doesn't look like a PCI device. Does its parent
-+                 exist? */
-+              acpi_handle phandle;
-+              if (acpi_get_parent(handle, &phandle))
-+                      return NULL;
-+              dev = acpi_get_physical_device(phandle);
-+      }
-+      if (!dev)
-+              return NULL;
-+      return dev;
-+}
-+EXPORT_SYMBOL(acpi_get_physical_pci_device);
-+
- static int acpi_bind_one(struct device *dev, acpi_handle handle)
- {
-       struct acpi_device *acpi_dev;
---- a/drivers/acpi/video.c
-+++ b/drivers/acpi/video.c
-@@ -862,11 +862,16 @@ static void acpi_video_bus_find_cap(stru
- static int acpi_video_bus_check(struct acpi_video_bus *video)
- {
-       acpi_status status = -ENOENT;
--
-+      struct device *dev;
- 
-       if (!video)
-               return -EINVAL;
- 
-+      dev = acpi_get_physical_pci_device(video->device->handle);
-+      if (!dev)
-+              return -ENODEV;
-+      put_device(dev);
-+
-       /* Since there is no HID, CID and so on for VGA driver, we have
-        * to check well known required nodes.
-        */
---- a/include/acpi/acpi_bus.h
-+++ b/include/acpi/acpi_bus.h
-@@ -373,6 +373,8 @@ struct acpi_bus_type {
- int register_acpi_bus_type(struct acpi_bus_type *);
- int unregister_acpi_bus_type(struct acpi_bus_type *);
- struct device *acpi_get_physical_device(acpi_handle);
-+struct device *acpi_get_physical_pci_device(acpi_handle);
-+
- /* helper */
- acpi_handle acpi_get_child(acpi_handle, acpi_integer);
- acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int);