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[v3,4/4] ACPI / EC: Enable noirq stage GPE polling

Message ID 9b7588f051ab52a5b19ce600fc90dd8f6bb3c576.1502432974.git.lv.zheng@intel.com (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Lv Zheng Aug. 11, 2017, 6:36 a.m. UTC 
This patch enables noirq stage GPE polling for the EC driver.

EC is a very special driver, required to work throughout the entire
suspend/resume process. Thus this patch enables IRQ polling for EC during
noirq stages to avoid all kinds of possible issues.

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.zheng@intel.com>
Tested-by: Tomislav Ivek <tomislav.ivek@gmail.com>
---
 drivers/acpi/ec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 396e81d..8bba317 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -164,7 +164,7 @@  module_param(ec_polling_guard, uint, 0644);
 MODULE_PARM_DESC(ec_polling_guard, "Guard time(us) between EC accesses in polling modes");
 
 static unsigned int ec_event_clearing __read_mostly = ACPI_EC_EVT_TIMING_QUERY;
-static unsigned int ec_gpe_polling __read_mostly = ACPI_EC_GPE_POLL_NONE;
+static unsigned int ec_gpe_polling __read_mostly = ACPI_EC_GPE_POLL_RESUME;
 
 /*
  * If the number of false interrupts per one transaction exceeds