From: Almer S. Tigelaar <almer@xxxxxxxxx> 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@xxxxxxxxx> Signed-off-by: Mattia Dongili <malattia@xxxxxxxx> Cc: Alexey Starikovskiy <astarikovskiy@xxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> --- 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 04e9044..391f331 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; } -- 1.6.0.6 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
