From: Alexey Starikovskiy Date: Thu, 1 Oct 2009 22:53:15 +0000 (+0400) Subject: ACPI: EC: Restart command even if no interrupts from EC X-Git-Tag: v2.6.32-rc3~4^2~2^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e12ac3d018dd8f20a075f5520209862969146fa6;p=profile%2Fivi%2Fkernel-adaptation-intel-automotive.git 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 Signed-off-by: Len Brown --- diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index f707960..8a4897d 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -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);