ACPI / property: Extend fwnode_property_* to data-only subnodes
Modify is_acpi_node() to return "true" for ACPI data-only subnodes as well as for ACPI device objects and change the name of to_acpi_node() to to_acpi_device_node() so it is clear that it covers ACPI device objects only. Accordingly, introduce to_acpi_data_node() to cover data-only subnodes in an analogous way. With that, make the fwnode_property_* family of functions work with ACPI data-only subnodes introduced previously. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Rafael J. Wysocki
Родитель
263b4c1a64
Коммит
3a7a2ab839
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@ -19,6 +19,11 @@
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#include "internal.h"
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static int acpi_data_get_property_array(struct acpi_device_data *data,
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const char *name,
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acpi_object_type type,
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const union acpi_object **obj);
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/* ACPI _DSD device properties UUID: daffd814-6eba-4d8c-8a91-bc9bbf4aa301 */
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static const u8 prp_uuid[16] = {
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0x14, 0xd8, 0xff, 0xda, 0xba, 0x6e, 0x8c, 0x4d,
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@ -191,8 +196,8 @@ static void acpi_init_of_compatible(struct acpi_device *adev)
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const union acpi_object *of_compatible;
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int ret;
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ret = acpi_dev_get_property_array(adev, "compatible", ACPI_TYPE_STRING,
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&of_compatible);
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ret = acpi_data_get_property_array(&adev->data, "compatible",
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ACPI_TYPE_STRING, &of_compatible);
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if (ret) {
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ret = acpi_dev_get_property(adev, "compatible",
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ACPI_TYPE_STRING, &of_compatible);
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@ -320,8 +325,8 @@ void acpi_free_properties(struct acpi_device *adev)
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}
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/**
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* acpi_dev_get_property - return an ACPI property with given name
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* @adev: ACPI device to get property
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* acpi_data_get_property - return an ACPI property with given name
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* @data: ACPI device deta object to get the property from
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* @name: Name of the property
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* @type: Expected property type
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* @obj: Location to store the property value (if not %NULL)
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@ -330,26 +335,27 @@ void acpi_free_properties(struct acpi_device *adev)
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* object at the location pointed to by @obj if found.
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*
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* Callers must not attempt to free the returned objects. These objects will be
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* freed by the ACPI core automatically during the removal of @adev.
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* freed by the ACPI core automatically during the removal of @data.
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*
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* Return: %0 if property with @name has been found (success),
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* %-EINVAL if the arguments are invalid,
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* %-ENODATA if the property doesn't exist,
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* %-EPROTO if the property value type doesn't match @type.
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*/
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int acpi_dev_get_property(struct acpi_device *adev, const char *name,
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acpi_object_type type, const union acpi_object **obj)
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static int acpi_data_get_property(struct acpi_device_data *data,
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const char *name, acpi_object_type type,
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const union acpi_object **obj)
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{
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const union acpi_object *properties;
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int i;
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if (!adev || !name)
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if (!data || !name)
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return -EINVAL;
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if (!adev->data.pointer || !adev->data.properties)
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if (!data->pointer || !data->properties)
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return -ENODATA;
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properties = adev->data.properties;
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properties = data->properties;
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for (i = 0; i < properties->package.count; i++) {
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const union acpi_object *propname, *propvalue;
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const union acpi_object *property;
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@ -370,11 +376,50 @@ int acpi_dev_get_property(struct acpi_device *adev, const char *name,
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}
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return -ENODATA;
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}
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EXPORT_SYMBOL_GPL(acpi_dev_get_property);
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/**
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* acpi_dev_get_property_array - return an ACPI array property with given name
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* @adev: ACPI device to get property
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* acpi_dev_get_property - return an ACPI property with given name.
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* @adev: ACPI device to get the property from.
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* @name: Name of the property.
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* @type: Expected property type.
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* @obj: Location to store the property value (if not %NULL).
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*/
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int acpi_dev_get_property(struct acpi_device *adev, const char *name,
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acpi_object_type type, const union acpi_object **obj)
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{
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return adev ? acpi_data_get_property(&adev->data, name, type, obj) : -EINVAL;
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}
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EXPORT_SYMBOL_GPL(acpi_dev_get_property);
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static struct acpi_device_data *acpi_device_data_of_node(struct fwnode_handle *fwnode)
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{
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if (fwnode->type == FWNODE_ACPI) {
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struct acpi_device *adev = to_acpi_device_node(fwnode);
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return &adev->data;
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} else if (fwnode->type == FWNODE_ACPI_DATA) {
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struct acpi_data_node *dn = to_acpi_data_node(fwnode);
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return &dn->data;
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}
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return NULL;
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}
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/**
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* acpi_node_prop_get - return an ACPI property with given name.
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* @fwnode: Firmware node to get the property from.
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* @propname: Name of the property.
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* @valptr: Location to store a pointer to the property value (if not %NULL).
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*/
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int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
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void **valptr)
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{
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return acpi_data_get_property(acpi_device_data_of_node(fwnode),
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propname, ACPI_TYPE_ANY,
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(const union acpi_object **)valptr);
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}
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/**
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* acpi_data_get_property_array - return an ACPI array property with given name
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* @adev: ACPI data object to get the property from
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* @name: Name of the property
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* @type: Expected type of array elements
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* @obj: Location to store a pointer to the property value (if not NULL)
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@ -383,7 +428,7 @@ EXPORT_SYMBOL_GPL(acpi_dev_get_property);
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* ACPI object at the location pointed to by @obj if found.
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*
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* Callers must not attempt to free the returned objects. Those objects will be
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* freed by the ACPI core automatically during the removal of @adev.
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* freed by the ACPI core automatically during the removal of @data.
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*
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* Return: %0 if array property (package) with @name has been found (success),
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* %-EINVAL if the arguments are invalid,
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@ -391,14 +436,15 @@ EXPORT_SYMBOL_GPL(acpi_dev_get_property);
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* %-EPROTO if the property is not a package or the type of its elements
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* doesn't match @type.
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*/
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int acpi_dev_get_property_array(struct acpi_device *adev, const char *name,
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acpi_object_type type,
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const union acpi_object **obj)
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static int acpi_data_get_property_array(struct acpi_device_data *data,
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const char *name,
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acpi_object_type type,
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const union acpi_object **obj)
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{
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const union acpi_object *prop;
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int ret, i;
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ret = acpi_dev_get_property(adev, name, ACPI_TYPE_PACKAGE, &prop);
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ret = acpi_data_get_property(data, name, ACPI_TYPE_PACKAGE, &prop);
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if (ret)
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return ret;
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@ -413,7 +459,6 @@ int acpi_dev_get_property_array(struct acpi_device *adev, const char *name,
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return 0;
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}
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EXPORT_SYMBOL_GPL(acpi_dev_get_property_array);
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/**
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* acpi_dev_get_property_reference - returns handle to the referenced object
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@ -518,15 +563,9 @@ int acpi_dev_get_property_reference(struct acpi_device *adev,
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}
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EXPORT_SYMBOL_GPL(acpi_dev_get_property_reference);
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int acpi_dev_prop_get(struct acpi_device *adev, const char *propname,
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void **valptr)
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{
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return acpi_dev_get_property(adev, propname, ACPI_TYPE_ANY,
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(const union acpi_object **)valptr);
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}
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int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
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enum dev_prop_type proptype, void *val)
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static int acpi_data_prop_read_single(struct acpi_device_data *data,
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const char *propname,
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enum dev_prop_type proptype, void *val)
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{
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const union acpi_object *obj;
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int ret;
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@ -535,7 +574,7 @@ int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
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return -EINVAL;
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if (proptype >= DEV_PROP_U8 && proptype <= DEV_PROP_U64) {
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ret = acpi_dev_get_property(adev, propname, ACPI_TYPE_INTEGER, &obj);
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ret = acpi_data_get_property(data, propname, ACPI_TYPE_INTEGER, &obj);
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if (ret)
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return ret;
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@ -560,7 +599,7 @@ int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
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break;
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}
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} else if (proptype == DEV_PROP_STRING) {
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ret = acpi_dev_get_property(adev, propname, ACPI_TYPE_STRING, &obj);
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ret = acpi_data_get_property(data, propname, ACPI_TYPE_STRING, &obj);
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if (ret)
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return ret;
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@ -571,6 +610,12 @@ int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
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return ret;
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}
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int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
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enum dev_prop_type proptype, void *val)
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{
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return adev ? acpi_data_prop_read_single(&adev->data, propname, proptype, val) : -EINVAL;
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}
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static int acpi_copy_property_array_u8(const union acpi_object *items, u8 *val,
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size_t nval)
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{
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@ -647,20 +692,22 @@ static int acpi_copy_property_array_string(const union acpi_object *items,
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return 0;
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}
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int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
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enum dev_prop_type proptype, void *val, size_t nval)
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static int acpi_data_prop_read(struct acpi_device_data *data,
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const char *propname,
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enum dev_prop_type proptype,
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void *val, size_t nval)
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{
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const union acpi_object *obj;
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const union acpi_object *items;
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int ret;
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if (val && nval == 1) {
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ret = acpi_dev_prop_read_single(adev, propname, proptype, val);
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ret = acpi_data_prop_read_single(data, propname, proptype, val);
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if (!ret)
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return ret;
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}
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ret = acpi_dev_get_property_array(adev, propname, ACPI_TYPE_ANY, &obj);
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ret = acpi_data_get_property_array(data, propname, ACPI_TYPE_ANY, &obj);
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if (ret)
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return ret;
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@ -696,3 +743,28 @@ int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
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}
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return ret;
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}
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int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
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enum dev_prop_type proptype, void *val, size_t nval)
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{
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return adev ? acpi_data_prop_read(&adev->data, propname, proptype, val, nval) : -EINVAL;
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}
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/**
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* acpi_node_prop_read - retrieve the value of an ACPI property with given name.
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* @fwnode: Firmware node to get the property from.
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* @propname: Name of the property.
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* @proptype: Expected property type.
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* @val: Location to store the property value (if not %NULL).
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* @nval: Size of the array pointed to by @val.
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*
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* If @val is %NULL, return the number of array elements comprising the value
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* of the property. Otherwise, read at most @nval values to the array at the
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* location pointed to by @val.
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*/
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int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
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enum dev_prop_type proptype, void *val, size_t nval)
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{
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return acpi_data_prop_read(acpi_device_data_of_node(fwnode),
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propname, proptype, val, nval);
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}
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@ -134,7 +134,7 @@ bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname)
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if (is_of_node(fwnode))
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return of_property_read_bool(to_of_node(fwnode), propname);
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else if (is_acpi_node(fwnode))
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return !acpi_dev_prop_get(to_acpi_node(fwnode), propname, NULL);
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return !acpi_node_prop_get(fwnode, propname, NULL);
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return !!pset_prop_get(to_pset(fwnode), propname);
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}
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@ -298,8 +298,8 @@ EXPORT_SYMBOL_GPL(device_property_read_string);
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_ret_ = OF_DEV_PROP_READ_ARRAY(to_of_node(_fwnode_), _propname_, \
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_type_, _val_, _nval_); \
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else if (is_acpi_node(_fwnode_)) \
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_ret_ = acpi_dev_prop_read(to_acpi_node(_fwnode_), _propname_, \
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_proptype_, _val_, _nval_); \
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_ret_ = acpi_node_prop_read(_fwnode_, _propname_, _proptype_, \
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_val_, _nval_); \
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else if (is_pset(_fwnode_)) \
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_ret_ = pset_prop_read_array(to_pset(_fwnode_), _propname_, \
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_proptype_, _val_, _nval_); \
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@ -440,8 +440,8 @@ int fwnode_property_read_string_array(struct fwnode_handle *fwnode,
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propname, val, nval) :
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of_property_count_strings(to_of_node(fwnode), propname);
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else if (is_acpi_node(fwnode))
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return acpi_dev_prop_read(to_acpi_node(fwnode), propname,
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DEV_PROP_STRING, val, nval);
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return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,
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val, nval);
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else if (is_pset(fwnode))
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return pset_prop_read_array(to_pset(fwnode), propname,
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DEV_PROP_STRING, val, nval);
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@ -470,8 +470,8 @@ int fwnode_property_read_string(struct fwnode_handle *fwnode,
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if (is_of_node(fwnode))
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return of_property_read_string(to_of_node(fwnode), propname, val);
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else if (is_acpi_node(fwnode))
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return acpi_dev_prop_read(to_acpi_node(fwnode), propname,
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DEV_PROP_STRING, val, 1);
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return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,
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val, 1);
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return pset_prop_read_array(to_pset(fwnode), propname,
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DEV_PROP_STRING, val, 1);
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@ -495,7 +495,7 @@ struct fwnode_handle *device_get_next_child_node(struct device *dev,
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} else if (IS_ENABLED(CONFIG_ACPI)) {
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struct acpi_device *node;
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node = acpi_get_next_child(dev, to_acpi_node(child));
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node = acpi_get_next_child(dev, to_acpi_device_node(child));
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if (node)
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return acpi_fwnode_handle(node);
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}
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@ -2083,11 +2083,11 @@ struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode,
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&flags);
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if (!IS_ERR(desc))
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active_low = flags & OF_GPIO_ACTIVE_LOW;
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} else if (is_acpi_node(fwnode)) {
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} else if (is_acpi_device_node(fwnode)) {
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struct acpi_gpio_info info;
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desc = acpi_get_gpiod_by_index(to_acpi_node(fwnode), propname, 0,
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&info);
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desc = acpi_get_gpiod_by_index(to_acpi_device_node(fwnode),
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propname, 0, &info);
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if (!IS_ERR(desc))
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active_low = info.active_low;
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}
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@ -424,16 +424,33 @@ static inline bool acpi_check_dma(struct acpi_device *adev, bool *coherent)
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}
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static inline bool is_acpi_node(struct fwnode_handle *fwnode)
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{
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return fwnode && (fwnode->type == FWNODE_ACPI
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|| fwnode->type == FWNODE_ACPI_DATA);
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}
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static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
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{
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return fwnode && fwnode->type == FWNODE_ACPI;
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}
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static inline struct acpi_device *to_acpi_node(struct fwnode_handle *fwnode)
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static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
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{
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return is_acpi_node(fwnode) ?
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return is_acpi_device_node(fwnode) ?
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container_of(fwnode, struct acpi_device, fwnode) : NULL;
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}
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static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
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{
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return fwnode && fwnode->type == FWNODE_ACPI_DATA;
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}
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static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
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{
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return is_acpi_data_node(fwnode) ?
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container_of(fwnode, struct acpi_data_node, fwnode) : NULL;
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}
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static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
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{
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return &adev->fwnode;
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@ -49,7 +49,7 @@ static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
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return adev ? adev->handle : NULL;
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}
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#define ACPI_COMPANION(dev) to_acpi_node((dev)->fwnode)
|
||||
#define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode)
|
||||
#define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \
|
||||
acpi_fwnode_handle(adev) : NULL)
|
||||
#define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
|
||||
|
|
@ -69,7 +69,7 @@ static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
|
|||
|
||||
static inline bool has_acpi_companion(struct device *dev)
|
||||
{
|
||||
return is_acpi_node(dev->fwnode);
|
||||
return is_acpi_device_node(dev->fwnode);
|
||||
}
|
||||
|
||||
static inline void acpi_preset_companion(struct device *dev,
|
||||
|
|
@ -461,7 +461,22 @@ static inline bool is_acpi_node(struct fwnode_handle *fwnode)
|
|||
return false;
|
||||
}
|
||||
|
||||
static inline struct acpi_device *to_acpi_node(struct fwnode_handle *fwnode)
|
||||
static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
|
@ -743,17 +758,16 @@ struct acpi_reference_args {
|
|||
#ifdef CONFIG_ACPI
|
||||
int acpi_dev_get_property(struct acpi_device *adev, const char *name,
|
||||
acpi_object_type type, const union acpi_object **obj);
|
||||
int acpi_dev_get_property_array(struct acpi_device *adev, const char *name,
|
||||
acpi_object_type type,
|
||||
const union acpi_object **obj);
|
||||
int acpi_dev_get_property_reference(struct acpi_device *adev,
|
||||
const char *name, size_t index,
|
||||
struct acpi_reference_args *args);
|
||||
|
||||
int acpi_dev_prop_get(struct acpi_device *adev, const char *propname,
|
||||
void **valptr);
|
||||
int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
|
||||
void **valptr);
|
||||
int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
|
||||
enum dev_prop_type proptype, void *val);
|
||||
int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
|
||||
enum dev_prop_type proptype, void *val, size_t nval);
|
||||
int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
|
||||
enum dev_prop_type proptype, void *val, size_t nval);
|
||||
|
||||
|
|
@ -766,13 +780,7 @@ static inline int acpi_dev_get_property(struct acpi_device *adev,
|
|||
{
|
||||
return -ENXIO;
|
||||
}
|
||||
static inline int acpi_dev_get_property_array(struct acpi_device *adev,
|
||||
const char *name,
|
||||
acpi_object_type type,
|
||||
const union acpi_object **obj)
|
||||
{
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
static inline int acpi_dev_get_property_reference(struct acpi_device *adev,
|
||||
const char *name, const char *cells_name,
|
||||
size_t index, struct acpi_reference_args *args)
|
||||
|
|
@ -780,6 +788,13 @@ static inline int acpi_dev_get_property_reference(struct acpi_device *adev,
|
|||
return -ENXIO;
|
||||
}
|
||||
|
||||
static inline int acpi_node_prop_get(struct fwnode_handle *fwnode,
|
||||
const char *propname,
|
||||
void **valptr)
|
||||
{
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
static inline int acpi_dev_prop_get(struct acpi_device *adev,
|
||||
const char *propname,
|
||||
void **valptr)
|
||||
|
|
@ -795,6 +810,14 @@ static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
|
|||
return -ENXIO;
|
||||
}
|
||||
|
||||
static inline int acpi_node_prop_read(struct fwnode_handle *fwnode,
|
||||
const char *propname,
|
||||
enum dev_prop_type proptype,
|
||||
void *val, size_t nval)
|
||||
{
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
static inline int acpi_dev_prop_read(struct acpi_device *adev,
|
||||
const char *propname,
|
||||
enum dev_prop_type proptype,
|
||||
|
|
|
|||
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