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| author | Almer S. Tigelaar <almer@gnome.org> | 2009-04-12 11:26:29 +0000 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-04-23 23:56:57 -0400 |
| commit | 5aa63f038f042fd1acd6e720a95df72857db0bc7 (patch) | |
| tree | 2c6e21ea2d24b6116e4fc8f16c2ad2b8ac378a24 /drivers/acpi/ec.c | |
| parent | a83021a229016f93b4e532d9cef21b01be5a8bb7 (diff) | |
| download | blackbird-op-linux-5aa63f038f042fd1acd6e720a95df72857db0bc7.tar.gz blackbird-op-linux-5aa63f038f042fd1acd6e720a95df72857db0bc7.zip | |
ACPI: EC: Fix ACPI EC resume non-query interrupt message
When resuming from standby (on a laptop) I see the following message in
my kernel.log:
"ACPI: EC: non-query interrupt received, switching to interrupt mode"
This apparently prevented sony-laptop to properly restore the brightness
level on resume.
The cause: In drivers/acpi/ec.c the acpi_ec_suspend function clears the
GPE mode bit, but this is not restored in acpi_ec_resume (the function
below it). The patch below fixes this by properly restoring the GPE_MODE
bit. Tested and confirmed to work.
Signed-off-by: Almer S. Tigelaar <almer@gnome.org>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/ec.c')
| -rw-r--r-- | drivers/acpi/ec.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 04e90443eff7..391f331674c7 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -1065,6 +1065,7 @@ static int acpi_ec_resume(struct acpi_device *device) struct acpi_ec *ec = acpi_driver_data(device); /* Enable use of GPE back */ clear_bit(EC_FLAGS_NO_GPE, &ec->flags); + set_bit(EC_FLAGS_GPE_MODE, &ec->flags); acpi_enable_gpe(NULL, ec->gpe); return 0; } |
