drivers/acpi/ec.c

175 struct acpi_ec *first_ec;
176 EXPORT_SYMBOL(first_ec);
891 	if (!first_ec)
894 	err = acpi_ec_read(first_ec, addr, &temp_data);
906 	if (!first_ec)
909 	return acpi_ec_write(first_ec, addr, val);
921 	if (!first_ec)
924 	return acpi_ec_transaction(first_ec, &t);
931 	if (!first_ec)
933 	return first_ec->handle;
1013 	struct acpi_ec *ec = first_ec;
1030 	if (first_ec)
1031 		acpi_ec_start(first_ec, true);
1365 	if (first_ec == ec)
1366 		first_ec = NULL;
1485 	acpi_handle scope_handle = ec == first_ec ? ACPI_ROOT_OBJECT : ec->handle;
1556 	acpi_handle scope_handle = ec == first_ec ? ACPI_ROOT_OBJECT : ec->handle;
1602 	if (!first_ec)
1603 		first_ec = ec;
1607 		if (ec == first_ec)
1608 			first_ec = NULL;
2071 	if (first_ec && !ec_no_wakeup)
2072 		acpi_mark_gpe_for_wake(NULL, first_ec->gpe);
2078 	if (pm_suspend_no_platform() && first_ec && !ec_no_wakeup)
2079 		acpi_set_gpe_wake_mask(NULL, first_ec->gpe, action);
2091 	if (!first_ec)
2098 	if (acpi_any_gpe_status_set(first_ec->gpe))
2115 	spin_lock_irq(&first_ec->lock);
2117 	if (acpi_ec_gpe_status_set(first_ec)) {
2120 		clear_gpe_and_advance_transaction(first_ec, false);
2121 		work_in_progress = acpi_ec_work_in_progress(first_ec);
2124 	spin_unlock_irq(&first_ec->lock);
2137 		spin_lock_irq(&first_ec->lock);
2139 		work_in_progress = acpi_ec_work_in_progress(first_ec);
2141 		spin_unlock_irq(&first_ec->lock);