linux-imx

// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0

/******************************************************************************

 *

 * Module Name: evregion - Operation Region support

 *

 * Copyright (C) 2000 - 2019, Intel Corp.

 *

 *****************************************************************************/

​

#include <acpi/acpi.h>

#include "accommon.h"

#include "acevents.h"

#include "acnamesp.h"

#include "acinterp.h"

​

#define _COMPONENT          ACPI_EVENTS

ACPI_MODULE_NAME("evregion")

​

extern u8 acpi_gbl_default_address_spaces[];

​

/* Local prototypes */

​

static void

acpi_ev_orphan_ec_reg_method(struct acpi_namespace_node *ec_device_node);

​

static acpi_status

acpi_ev_reg_run(acpi_handle obj_handle,

        u32 level, void *context, void **return_value);

​

/*******************************************************************************

 *

 * FUNCTION:    acpi_ev_initialize_op_regions

 *

 * PARAMETERS:  None

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Execute _REG methods for all Operation Regions that have

 *              an installed default region handler.

 *

 ******************************************************************************/

​

acpi_status acpi_ev_initialize_op_regions(void)

{

    acpi_status status;

    u32 i;

​

    ACPI_FUNCTION_TRACE(ev_initialize_op_regions);

​

    status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);

    if (ACPI_FAILURE(status)) {

        return_ACPI_STATUS(status);

    }

​

    /* Run the _REG methods for op_regions in each default address space */

​

    for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) {

        /*

         * Make sure the installed handler is the DEFAULT handler. If not the

         * default, the _REG methods will have already been run (when the

         * handler was installed)

         */

        if (acpi_ev_has_default_handler(acpi_gbl_root_node,