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>
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Len Brown
parent
0efe5e32c8
commit
e12ac3d018
@@ -232,10 +232,8 @@ static int ec_poll(struct acpi_ec *ec)
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}
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}
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advance_transaction(ec, acpi_ec_read_status(ec));
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advance_transaction(ec, acpi_ec_read_status(ec));
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} while (time_before(jiffies, delay));
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} while (time_before(jiffies, delay));
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if (!ec->curr->irq_count ||
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if (acpi_ec_read_status(ec) & ACPI_EC_FLAG_IBF)
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(acpi_ec_read_status(ec) & ACPI_EC_FLAG_IBF))
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break;
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break;
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/* try restart command if we get any false interrupts */
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pr_debug(PREFIX "controller reset, restart transaction\n");
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pr_debug(PREFIX "controller reset, restart transaction\n");
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spin_lock_irqsave(&ec->curr_lock, flags);
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spin_lock_irqsave(&ec->curr_lock, flags);
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start_transaction(ec);
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start_transaction(ec);
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