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ACPI: EC: Restart command even if no interrupts from EC 

EC may forget a command without sending any "reset" interrupt,
thus we need to lessen the requirement for transaction restart.

Reference: http://bugzilla.kernel.org/show_bug.cgi?id=14247
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Alexey Starikovskiy 2009-10-02 02:53:15 +04:00 committed by Len Brown
parent 0efe5e32c8
commit e12ac3d018
1 changed files with 1 additions and 3 deletions
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4
drivers/acpi/ec.c
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@ -232,10 +232,8 @@ static int ec_poll(struct acpi_ec *ec)
}
advance_transaction(ec, acpi_ec_read_status(ec));
} while (time_before(jiffies, delay));
if (!ec->curr->irq_count ||
(acpi_ec_read_status(ec) & ACPI_EC_FLAG_IBF))
if (acpi_ec_read_status(ec) & ACPI_EC_FLAG_IBF)
break;
/* try restart command if we get any false interrupts */
pr_debug(PREFIX "controller reset, restart transaction\n");
spin_lock_irqsave(&ec->curr_lock, flags);
start_transaction(ec);