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authorLuming Yu <luming.yu@intel.com>2005-08-03 17:38:04 -0400
committerLen Brown <len.brown@intel.com>2005-08-03 17:40:43 -0400
commit7b15f5e7bb180ac7bfb8926dbbd8835fecc07fad (patch)
treefa5b48a0041c2f4896805a4762befabdfcea3031 /drivers/acpi/ec.c
parentecc21ebe603af31f172c43b8b261df79040790ef (diff)
[ACPI] revert Embedded Controller to polling-mode by default (ala 2.6.12)
Burst mode isn't ready for prime time, but can be enabled for test via "ec_burst=1" Signed-off-by: Luming Yu <luming.yu@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/ec.c')
-rw-r--r--drivers/acpi/ec.c24
1 files changed, 19 insertions, 5 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 2dadb7f6326..1ac5731d45e 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -76,13 +76,14 @@ static int acpi_ec_remove (struct acpi_device *device, int type);
static int acpi_ec_start (struct acpi_device *device);
static int acpi_ec_stop (struct acpi_device *device, int type);
static int acpi_ec_burst_add ( struct acpi_device *device);
+static int acpi_ec_polling_add ( struct acpi_device *device);
static struct acpi_driver acpi_ec_driver = {
.name = ACPI_EC_DRIVER_NAME,
.class = ACPI_EC_CLASS,
.ids = ACPI_EC_HID,
.ops = {
- .add = acpi_ec_burst_add,
+ .add = acpi_ec_polling_add,
.remove = acpi_ec_remove,
.start = acpi_ec_start,
.stop = acpi_ec_stop,
@@ -164,7 +165,7 @@ static union acpi_ec *ec_ecdt;
/* External interfaces use first EC only, so remember */
static struct acpi_device *first_ec;
-static int acpi_ec_polling_mode;
+static int acpi_ec_polling_mode = EC_POLLING;
/* --------------------------------------------------------------------------
Transaction Management
@@ -1710,11 +1711,24 @@ static int __init acpi_fake_ecdt_setup(char *str)
acpi_fake_ecdt_enabled = 1;
return 0;
}
+
__setup("acpi_fake_ecdt", acpi_fake_ecdt_setup);
static int __init acpi_ec_set_polling_mode(char *str)
{
- acpi_ec_polling_mode = EC_POLLING;
- acpi_ec_driver.ops.add = acpi_ec_polling_add;
+ int burst;
+
+ if (!get_option(&str, &burst))
+ return 0;
+
+ if (burst) {
+ acpi_ec_polling_mode = EC_BURST;
+ acpi_ec_driver.ops.add = acpi_ec_burst_add;
+ } else {
+ acpi_ec_polling_mode = EC_POLLING;
+ acpi_ec_driver.ops.add = acpi_ec_polling_add;
+ }
+ printk(KERN_INFO PREFIX "EC %s mode.\n",
+ burst ? "burst": "polling");
return 0;
}
-__setup("ec_polling", acpi_ec_set_polling_mode);
+__setup("ec_burst=", acpi_ec_set_polling_mode);