[PATCH v2 2/3] ACPI/NFIT: Add NVDIMM ID "id" under sysfs

[Toshi Kani]

ACPI 6.1, section 5.2.25.9, defines an identifier for an NVDIMM.

Change the NFIT driver to create read-only "id" file under NVDIMM's
nfit directory of sysfs, which shows the NVDIMM ID.

Signed-off-by: Toshi Kani 
Cc: Rafael J. Wysocki 
Cc: Dan Williams 
Cc: Robert Elliott 
---
 drivers/acpi/nfit.c |   21 +
 1 file changed, 21 insertions(+)

diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c
index 4982a18..677cf89 100644
--- a/drivers/acpi/nfit.c
+++ b/drivers/acpi/nfit.c
@@ -781,6 +781,26 @@ static ssize_t flags_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(flags);
 
+static ssize_t id_show(struct device *dev,
+   struct device_attribute *attr, char *buf)
+{
+   struct acpi_nfit_control_region *dcr = to_nfit_dcr(dev);
+
+   if (dcr->valid_fields & ACPI_NFIT_CONTROL_MFG_INFO_VALID)
+   return sprintf(buf, "%02x%02x-%02x-%02x%02x-%02x%02x%02x%02x\n",
+   dcr->vendor_id[0], dcr->vendor_id[1],
+   dcr->manufacturing_location,
+   dcr->manufacturing_date[0], dcr->manufacturing_date[1],
+   dcr->serial_number[0], dcr->serial_number[1],
+   dcr->serial_number[2], dcr->serial_number[3]);
+   else
+   return sprintf(buf, "%02x%02x-%02x%02x%02x%02x\n",
+   dcr->vendor_id[0], dcr->vendor_id[1],
+   dcr->serial_number[0], dcr->serial_number[1],
+   dcr->serial_number[2], dcr->serial_number[3]);
+}
+static DEVICE_ATTR_RO(id);
+
 static struct attribute *acpi_nfit_dimm_attributes[] = {
_attr_handle.attr,
_attr_phys_id.attr,
@@ -790,6 +810,7 @@ static struct attribute *acpi_nfit_dimm_attributes[] = {
_attr_serial.attr,
_attr_rev_id.attr,
_attr_flags.attr,
+   _attr_id.attr,
NULL,
 };
 

[PATCH v2 2/3] ACPI/NFIT: Add NVDIMM ID "id" under sysfs

[Toshi Kani]

ACPI 6.1, section 5.2.25.9, defines an identifier for an NVDIMM.

Change the NFIT driver to create read-only "id" file under NVDIMM's
nfit directory of sysfs, which shows the NVDIMM ID.

Signed-off-by: Toshi Kani 
Cc: Rafael J. Wysocki 
Cc: Dan Williams 
Cc: Robert Elliott 
---
 drivers/acpi/nfit.c |   21 +
 1 file changed, 21 insertions(+)

diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c
index 4982a18..677cf89 100644
--- a/drivers/acpi/nfit.c
+++ b/drivers/acpi/nfit.c
@@ -781,6 +781,26 @@ static ssize_t flags_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(flags);
 
+static ssize_t id_show(struct device *dev,
+   struct device_attribute *attr, char *buf)
+{
+   struct acpi_nfit_control_region *dcr = to_nfit_dcr(dev);
+
+   if (dcr->valid_fields & ACPI_NFIT_CONTROL_MFG_INFO_VALID)
+   return sprintf(buf, "%02x%02x-%02x-%02x%02x-%02x%02x%02x%02x\n",
+   dcr->vendor_id[0], dcr->vendor_id[1],
+   dcr->manufacturing_location,
+   dcr->manufacturing_date[0], dcr->manufacturing_date[1],
+   dcr->serial_number[0], dcr->serial_number[1],
+   dcr->serial_number[2], dcr->serial_number[3]);
+   else
+   return sprintf(buf, "%02x%02x-%02x%02x%02x%02x\n",
+   dcr->vendor_id[0], dcr->vendor_id[1],
+   dcr->serial_number[0], dcr->serial_number[1],
+   dcr->serial_number[2], dcr->serial_number[3]);
+}
+static DEVICE_ATTR_RO(id);
+
 static struct attribute *acpi_nfit_dimm_attributes[] = {
_attr_handle.attr,
_attr_phys_id.attr,
@@ -790,6 +810,7 @@ static struct attribute *acpi_nfit_dimm_attributes[] = {
_attr_serial.attr,
_attr_rev_id.attr,
_attr_flags.attr,
+   _attr_id.attr,
NULL,
 };