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authorFu Zhonghui <zhonghui.fu@linux.intel.com>2014-09-24 20:42:26 (GMT)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-09-24 20:42:26 (GMT)
commit457920817e645a7dee42c2a75c81c5ed8e12ee1c (patch)
tree3d08864673e2885ae3c6d59fb8eff35b1a4ac832 /drivers
parent0f33be009b89d2268e94194dc4fd01a7851b6d51 (diff)
downloadlinux-457920817e645a7dee42c2a75c81c5ed8e12ee1c.tar.xz
ACPI / platform / LPSS: disable async suspend/resume of LPSS devices
On some systems (Asus T100 in particular) there are strict ordering dependencies between LPSS devices with respect to power management that break if they suspend/resume asynchronously. In theory it should be possible to follow those dependencies in the async suspend/resume case too (the ACPI tables tell as that the dependencies are there), but since we're missing infrastructure for that at the moment, disable async suspend/resume for all of the LPSS devices for the time being. Link: http://marc.info/?l=linux-acpi&m=141158962321905&w=2 Fixes: 8ce62f85a81f (ACPI / platform / LPSS: Enable async suspend/resume of LPSS devices) Signed-off-by: Li Aubrey <aubrey.li@linux.intel.com> Signed-off-by: Fu Zhonghui <zhonghui.fu@linux.intel.com> Cc: 3.16+ <stable@vger.kernel.org> # 3.16+ [ rjw: Changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/acpi/acpi_lpss.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index fddc1e8..b0ea767 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -419,7 +419,6 @@ static int acpi_lpss_create_device(struct acpi_device *adev,
adev->driver_data = pdata;
pdev = acpi_create_platform_device(adev);
if (!IS_ERR_OR_NULL(pdev)) {
- device_enable_async_suspend(&pdev->dev);
return 1;
}