129  * this threshold, will think there is a GPE storm happened and
130  * will disable the GPE for normal transaction.
134 MODULE_PARM_DESC(ec_storm_threshold, "Maxim false GPE numbers not considered as GPE storm");
185 static int EC_FLAGS_IGNORE_DSDT_GPE; /* Needs ECDT GPE as correction setting */
186 static int EC_FLAGS_TRUST_DSDT_GPE; /* Needs DSDT GPE as correction setting */
336  *                           GPE Registers
343 	(void)acpi_get_gpe_status(NULL, ec->gpe, &gpe_status);  in acpi_ec_is_gpe_raised()
350 		acpi_enable_gpe(NULL, ec->gpe);  in acpi_ec_enable_gpe()
353 		acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_ENABLE);  in acpi_ec_enable_gpe()
357 		 * On some platforms, EN=1 writes cannot trigger GPE. So  in acpi_ec_enable_gpe()
358 		 * software need to manually trigger a pseudo GPE event on  in acpi_ec_enable_gpe()
369 		acpi_disable_gpe(NULL, ec->gpe);  in acpi_ec_disable_gpe()
372 		acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_DISABLE);  in acpi_ec_disable_gpe()
379 	 * GPE STS is a W1C register, which means:  in acpi_ec_clear_gpe()
384 	 * So software can clear GPE in any contexts.  in acpi_ec_clear_gpe()
386 	 * EC commands will be sent without GPE raised.  in acpi_ec_clear_gpe()
390 	acpi_clear_gpe(NULL, ec->gpe);  in acpi_ec_clear_gpe()
401 	    ec->gpe >= 0 && ec->reference_count == 1)  in acpi_ec_submit_request()
411 	    ec->gpe >= 0 && ec->reference_count == 0)  in acpi_ec_complete_request()
421 		if (ec->gpe >= 0)  in acpi_ec_mask_events()
435 		if (ec->gpe >= 0)  in acpi_ec_unmask_events()
647 	 * trigger a GPE interrupt.  in advance_transaction()
649 	if (ec->gpe >= 0)  in advance_transaction()
740 			 *    GPE handler after the transaction enters  in ec_guard()
790 	/* Enable GPE for command processing (IBF=0/OBF=1) */  in acpi_ec_transaction_unlocked()
809 	/* Disable GPE for command processing (IBF=0/OBF=1) */  in acpi_ec_transaction_unlocked()
950 		/* Enable GPE for event processing (SCI_EVT=1) */  in acpi_ec_start()
982 		/* Disable GPE for event processing (SCI_EVT=1) */  in acpi_ec_stop()
1352 	ec->gpe = -1;  in acpi_ec_alloc()
1393 		 * Always inherit the GPE number setting from the ECDT  in ec_parse_device()
1396 		ec->gpe = boot_ec->gpe;  in ec_parse_device()
1398 		/* Get GPE bit assignment (EC events). */  in ec_parse_device()
1402 			ec->gpe = tmp;  in ec_parse_device()
1406 		 * platforms which use GpioInt instead of GPE.  in ec_parse_device()
1421 	status = acpi_install_gpe_raw_handler(NULL, ec->gpe,  in install_gpe_event_handler()
1446  * namespace and register them, and install an event (either GPE or GPIO IRQ)
1477 	if (ec->gpe < 0) {  in ec_install_handlers()
1500 		if (ec->gpe >= 0)  in ec_install_handlers()
1534 	 * Flushes the EC requests and thus disables the GPE before  in ec_remove_handlers()
1535 	 * removing the GPE handler. This is required by the current ACPICA  in ec_remove_handlers()
1536 	 * GPE core. ACPICA GPE core will automatically disable a GPE when  in ec_remove_handlers()
1538 	 * must disable the GPEs prior to removing the GPE handlers.  in ec_remove_handlers()
1543 		if (ec->gpe >= 0 &&  in ec_remove_handlers()
1544 		    ACPI_FAILURE(acpi_remove_gpe_handler(NULL, ec->gpe,  in ec_remove_handlers()
1546 			pr_err("failed to remove gpe handler\n");  in ec_remove_handlers()
1575 		if (ec->gpe >= 0)  in acpi_ec_setup()
1576 			pr_info("GPE=0x%x\n", ec->gpe);  in acpi_ec_setup()
1614 			 * ECDT ID. But trust ECDT GPE rather than _GPE  in acpi_ec_add()
1616 			 * boot_ec->gpe to ec->gpe.  in acpi_ec_add()
1742 	 * At this point, the GPE is not fully initialized, so do not to  in acpi_ec_dsdt_probe()
1835  * Some ECDTs contain wrong GPE setting, but they share the same port addresses
1841 	pr_debug("Detected system needing DSDT GPE setting.\n");  in ec_honor_dsdt_gpe()
1847  * Some DSDTs contain wrong GPE setting.
1853 	pr_debug("Detected system needing ignore DSDT GPE setting.\n");  in ec_honor_ecdt_gpe()
1945 	 * Ignore the GPE value on Reduced Hardware platforms.  in acpi_ec_ecdt_probe()
1949 		ec->gpe = ecdt_ptr->gpe;  in acpi_ec_ecdt_probe()
1988 	 * The SCI handler doesn't run at this point, so the GPE can be  in acpi_ec_suspend_noirq()
1992 	    ec->gpe >= 0 && ec->reference_count >= 1)  in acpi_ec_suspend_noirq()
1993 		acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_DISABLE);  in acpi_ec_suspend_noirq()
2007 	    ec->gpe >= 0 && ec->reference_count >= 1)  in acpi_ec_resume_noirq()
2008 		acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_ENABLE);  in acpi_ec_resume_noirq()
2025 		acpi_mark_gpe_for_wake(NULL, first_ec->gpe);  in acpi_ec_mark_gpe_for_wake()
2032 		acpi_set_gpe_wake_mask(NULL, first_ec->gpe, action);  in acpi_ec_set_gpe_wake_mask()
2043 	 * Report wakeup if the status bit is set for any enabled GPE other  in acpi_ec_dispatch_gpe()
2046 	if (acpi_any_gpe_status_set(first_ec->gpe))  in acpi_ec_dispatch_gpe()
2050 	 * Dispatch the EC GPE in-band, but do not report wakeup in any case  in acpi_ec_dispatch_gpe()
2053 	ret = acpi_dispatch_gpe(NULL, first_ec->gpe);  in acpi_ec_dispatch_gpe()
2055 		pm_pr_dbg("ACPI EC GPE dispatched\n");  in acpi_ec_dispatch_gpe()
2181 	 * wakeup from EC GPE.  in acpi_ec_init()