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Revert "ACPI: EC: Handle IRQ storm on Acer laptops"

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This reverts commit 2c81ce4c9c.

It caused several new troubles (eg suspend slowdown bisected down to
this patch by Pavel Machek), so just revert it for now.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Cc: Pavel Machek <pavel@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexey Starikovskiy 2008-03-19 02:45:12 +03:00 committed by Linus Torvalds
parent 2caf470363
commit d7a0e1f564
1 changed files with 0 additions and 11 deletions
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11
drivers/acpi/ec.c
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@ -129,7 +129,6 @@ static struct acpi_ec {
struct mutex lock;
wait_queue_head_t wait;
struct list_head list;
atomic_t irq_count;
u8 handlers_installed;
} *boot_ec, *first_ec;
@ -182,8 +181,6 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll)
{
int ret = 0;
atomic_set(&ec->irq_count, 0);
if (unlikely(event == ACPI_EC_EVENT_OBF_1 &&
test_bit(EC_FLAGS_NO_OBF1_GPE, &ec->flags)))
force_poll = 1;
@ -230,7 +227,6 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll)
while (time_before(jiffies, delay)) {
if (acpi_ec_check_status(ec, event))
goto end;
msleep(5);
}
}
pr_err(PREFIX "acpi_ec_wait timeout,"
@ -533,13 +529,6 @@ static u32 acpi_ec_gpe_handler(void *data)
struct acpi_ec *ec = data;
pr_debug(PREFIX "~~~> interrupt\n");
atomic_inc(&ec->irq_count);
if (atomic_read(&ec->irq_count) > 5) {
pr_err(PREFIX "GPE storm detected, disabling EC GPE\n");
acpi_disable_gpe(NULL, ec->gpe, ACPI_ISR);
clear_bit(EC_FLAGS_GPE_MODE, &ec->flags);
return ACPI_INTERRUPT_HANDLED;
}
clear_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
if (test_bit(EC_FLAGS_GPE_MODE, &ec->flags))
wake_up(&ec->wait);