[PATCH v3 26/27] powerpc/powernv/pmem: Expose the firmware version in sysfs

[Alastair D'Silva]

From: Alastair D'Silva <alastair at d-silva.org>

This information will be used by ndctl in userspace to help users identify
the device.

Signed-off-by: Alastair D'Silva <alastair at d-silva.org>
---
 arch/powerpc/platforms/powernv/pmem/ocxl_sysfs.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/powerpc/platforms/powernv/pmem/ocxl_sysfs.c b/arch/powerpc/platforms/powernv/pmem/ocxl_sysfs.c
index 7829e4bc887d..84b23cc3e8b7 100644
--- a/arch/powerpc/platforms/powernv/pmem/ocxl_sysfs.c
+++ b/arch/powerpc/platforms/powernv/pmem/ocxl_sysfs.c
@@ -16,8 +16,17 @@ static ssize_t serial_show(struct device *device, struct device_attribute *attr,
 	return scnprintf(buf, PAGE_SIZE, "%llu\n", fn_config->serial);
 }
 
+static ssize_t fw_version_show(struct device *device,
+			       struct device_attribute *attr, char *buf)
+{
+	struct ocxlpmem *ocxlpmem = container_of(device, struct ocxlpmem, dev);
+
+	return scnprintf(buf, PAGE_SIZE, "%s\n", ocxlpmem->fw_version);
+}
+
 static struct device_attribute attrs[] = {
 	__ATTR_RO(serial),
+	__ATTR_RO(fw_version),
 };
 
 int ocxlpmem_sysfs_add(struct ocxlpmem *ocxlpmem)
-- 
2.24.1