This patch enables noirq stage event detection for the EC driver. EC is a very special driver, required to detecting events throughout the entire suspend/resume process. Thus this patch enables event detection for EC during noirq stages to meet this requirement. This is done by making sure that the EC sleep APIs: acpi_ec_block_transactions() acpi_ec_unblock_transactions() rather than the EC driver suspend/resume hooks: acpi_ec_suspend() acpi_ec_resume() are the boundary of the EC event handling during suspend/resume, so that the ACPI sleep core can tune their invocation timing to handle special BIOS requirements.
If this commit is bisected to be a regression culprit, please report this to bugzilla.kernel.org for further investigation. Link: https://bugzilla.kernel.org/show_bug.cgi?id=196129 Signed-off-by: Lv Zheng <lv.zh...@intel.com> Tested-by: Tomislav Ivek <tomislav.i...@gmail.com> --- drivers/acpi/ec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 9363656..36ce5e7 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -157,7 +157,7 @@ static bool ec_no_wakeup __read_mostly; module_param(ec_no_wakeup, bool, 0644); MODULE_PARM_DESC(ec_no_wakeup, "Do not wake up from suspend-to-idle"); -static bool ec_detect_noirq_events __read_mostly; +static bool ec_detect_noirq_events __read_mostly = true; module_param(ec_detect_noirq_events, bool, 0644); MODULE_PARM_DESC(ec_detect_noirq_events, "Enabling event detection during noirq stage"); -- 2.7.4
