1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c
index 7191fa0c087f..e40aac281b06 100644
--- a/drivers/soc/qcom/smem.c
+++ b/drivers/soc/qcom/smem.c
@@ -795,6 +795,39 @@ int qcom_smem_get_soc_id(u32 *id)
 }
 EXPORT_SYMBOL_GPL(qcom_smem_get_soc_id);
 
+/**
+ * qcom_smem_get_feature_code() - return the feature code
+ * @code: On success, return the feature code here.
+ *
+ * Look up the feature code identifier from SMEM and return it.
+ *
+ * Return: 0 on success, negative errno on failure.
+ */
+int qcom_smem_get_feature_code(u32 *code)
+{
+	struct socinfo *info;
+	u32 raw_code;
+
+	info = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_HW_SW_BUILD_ID, NULL);
+	if (IS_ERR(info))
+		return PTR_ERR(info);
+
+	/* This only makes sense for socinfo >= 16 */
+	if (__le32_to_cpu(info->fmt) < SOCINFO_VERSION(0, 16))
+		return -EOPNOTSUPP;
+
+	raw_code = __le32_to_cpu(info->feature_code);
+
+	/* Ensure the value makes sense */
+	if (raw_code > SOCINFO_FC_INT_MAX)
+		raw_code = SOCINFO_FC_UNKNOWN;
+
+	*code = raw_code;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(qcom_smem_get_feature_code);
+
 static int qcom_smem_get_sbl_version(struct qcom_smem *smem)
 {
 	struct smem_header *header;