[PATCH 2/7] ndtest: Add compatability string to treat it as PAPR family

Santosh Sivaraj
2020-12-22T04:23:27Z

Since this module is written to be platform agnostic, the module is made
part of the PAPR_FAMILY. ndctl identifies the family using the compatible
string inside of_node dir-entry.

Signed-off-by: Santosh Sivaraj <santosh@fossix.org>
---
tools/testing/nvdimm/test/ndtest.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)

diff --git a/tools/testing/nvdimm/test/ndtest.c b/tools/testing/nvdimm/test/ndtest.c
index f89d74fdcdee..001527b37a23 100644
--- a/tools/testing/nvdimm/test/ndtest.c
+++ b/tools/testing/nvdimm/test/ndtest.c
@@ -65,11 +65,34 @@ static int ndtest_ctl(struct nvdimm_bus_descriptor *nd_desc,
return 0;
}

+static ssize_t compatible_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "nvdimm_test");
+}
+static DEVICE_ATTR_RO(compatible);
+
+static struct attribute *of_node_attributes[] = {
+ &dev_attr_compatible.attr,
+ NULL
+};
+
+static const struct attribute_group of_node_attribute_group = {
+ .name = "of_node",
+ .attrs = of_node_attributes,
+};
+
+static const struct attribute_group *ndtest_attribute_groups[] = {
+ &of_node_attribute_group,
+ NULL,
+};
+
static int ndtest_bus_register(struct ndtest_priv *p)
{
p->bus_desc.ndctl = ndtest_ctl;
p->bus_desc.module = THIS_MODULE;
p->bus_desc.provider_name = NULL;
+ p->bus_desc.attr_groups = ndtest_attribute_groups;

p->bus = nvdimm_bus_register(&p->pdev.dev, &p->bus_desc);
if (!p->bus) {