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ACPI: EC: Return bool from acpi_ec_dispatch_gpe()
On some systems, if suspend-to-idle is used, the EC may signal system wakeup events (power button events, for example) as well as events that should not cause the system to resume and acpi_ec_dispatch_gpe() needs to be called to determine whether or not the system should resume then. In particular, if acpi_ec_dispatch_gpe() doesn't detect any EC events at all, the system should remain suspended, so it is useful to know when that is the case. For this reason, make acpi_ec_dispatch_gpe() return a bool value indicating whether or not any EC events have been detected by it. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Thomas Gleixner <tglx@linutronix.de>
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parent
6921de898b
commit
9089f16e05
2 changed files with 9 additions and 4 deletions
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@ -1060,10 +1060,15 @@ void acpi_ec_set_gpe_wake_mask(u8 action)
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acpi_set_gpe_wake_mask(NULL, first_ec->gpe, action);
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}
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void acpi_ec_dispatch_gpe(void)
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bool acpi_ec_dispatch_gpe(void)
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{
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if (first_ec)
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acpi_dispatch_gpe(NULL, first_ec->gpe);
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u32 ret;
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if (!first_ec)
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return false;
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ret = acpi_dispatch_gpe(NULL, first_ec->gpe);
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return ret == ACPI_INTERRUPT_HANDLED;
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}
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/* --------------------------------------------------------------------------
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@ -196,7 +196,7 @@ void acpi_ec_block_transactions(void);
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void acpi_ec_unblock_transactions(void);
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void acpi_ec_mark_gpe_for_wake(void);
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void acpi_ec_set_gpe_wake_mask(u8 action);
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void acpi_ec_dispatch_gpe(void);
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bool acpi_ec_dispatch_gpe(void);
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int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
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acpi_handle handle, acpi_ec_query_func func,
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void *data);
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