diff options
Diffstat (limited to 'drivers/acpi/nfit.c')
| -rw-r--r-- | drivers/acpi/nfit.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c index 9f9a20bae0ac..162391b32022 100644 --- a/drivers/acpi/nfit.c +++ b/drivers/acpi/nfit.c @@ -354,6 +354,33 @@ static int nfit_mem_init(struct acpi_nfit_desc *acpi_desc) return 0; } +static ssize_t revision_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct nvdimm_bus *nvdimm_bus = to_nvdimm_bus(dev); + struct nvdimm_bus_descriptor *nd_desc = to_nd_desc(nvdimm_bus); + struct acpi_nfit_desc *acpi_desc = to_acpi_desc(nd_desc); + + return sprintf(buf, "%d\n", acpi_desc->nfit->header.revision); +} +static DEVICE_ATTR_RO(revision); + +static struct attribute *acpi_nfit_attributes[] = { + &dev_attr_revision.attr, + NULL, +}; + +static struct attribute_group acpi_nfit_attribute_group = { + .name = "nfit", + .attrs = acpi_nfit_attributes, +}; + +static const struct attribute_group *acpi_nfit_attribute_groups[] = { + &nvdimm_bus_attribute_group, + &acpi_nfit_attribute_group, + NULL, +}; + static int acpi_nfit_init(struct acpi_nfit_desc *acpi_desc, acpi_size sz) { struct device *dev = acpi_desc->dev; @@ -410,6 +437,7 @@ static int acpi_nfit_add(struct acpi_device *adev) nd_desc = &acpi_desc->nd_desc; nd_desc->provider_name = "ACPI.NFIT"; nd_desc->ndctl = acpi_nfit_ctl; + nd_desc->attr_groups = acpi_nfit_attribute_groups; acpi_desc->nvdimm_bus = nvdimm_bus_register(dev, nd_desc); if (!acpi_desc->nvdimm_bus) |