diff options
| author | Fu Zhonghui <zhonghui.fu@linux.intel.com> | 2014-09-24 22:42:26 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-09-24 22:42:26 +0200 |
| commit | 457920817e645a7dee42c2a75c81c5ed8e12ee1c (patch) | |
| tree | 3d08864673e2885ae3c6d59fb8eff35b1a4ac832 | |
| parent | 0f33be009b89d2268e94194dc4fd01a7851b6d51 (diff) | |
| download | ahci-457920817e645a7dee42c2a75c81c5ed8e12ee1c.tar.gz | |
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>
| -rw-r--r-- | drivers/acpi/acpi_lpss.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index fddc1e86f9d0e7..b0ea767c86968c 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; } |