diff --git a/drivers/tegra/hwpm/hal/t234/ip/nvdla/t234_nvdla.c b/drivers/tegra/hwpm/hal/t234/ip/nvdla/t234_nvdla.c
index 3c8b657..e8bbe6d 100644
--- a/drivers/tegra/hwpm/hal/t234/ip/nvdla/t234_nvdla.c
+++ b/drivers/tegra/hwpm/hal/t234/ip/nvdla/t234_nvdla.c
@@ -166,11 +166,11 @@ static struct hwpm_ip_inst t234_nvdla_inst_static_array[
 			.ip_dev = NULL,
 			.hwpm_ip_pm = NULL,
 			.hwpm_ip_reg_op = NULL,
-			.fd = -1,
+			.fd = 1,
 		},
 
 		.element_fs_mask = 0U,
-		.dev_name = "",
+		.dev_name = "/dev/nvdladebugfs/nvdla0/hwpm/ctrl",
 	},
 	{
 		.hw_inst_mask = BIT(1),
@@ -229,11 +229,11 @@ static struct hwpm_ip_inst t234_nvdla_inst_static_array[
 			.ip_dev = NULL,
 			.hwpm_ip_pm = NULL,
 			.hwpm_ip_reg_op = NULL,
-			.fd = -1,
+			.fd = 1,
 		},
 
 		.element_fs_mask = 0U,
-		.dev_name = "",
+		.dev_name = "/dev/nvdladebugfs/nvdla1/hwpm/ctrl",
 	},
 };
 
diff --git a/drivers/tegra/hwpm/include/tegra_hwpm.h b/drivers/tegra/hwpm/include/tegra_hwpm.h
index 28f250a..bef1759 100644
--- a/drivers/tegra/hwpm/include/tegra_hwpm.h
+++ b/drivers/tegra/hwpm/include/tegra_hwpm.h
@@ -152,9 +152,9 @@ struct tegra_hwpm_ip_ops {
 				u32 inst_element_index, u64 reg_offset,
 				u32 *reg_data);
 	/*
-	 * fd - is used to store the
-	 * file descriptor of the IP devctl node
-	 * in QNX
+	 * fd - is used to store the file descriptor of the IP devctl node in QNX.
+	 * Default is -1, which indicates the IP has no debug node enabled for Reg ops.
+	 * Set to 1 if IP has debug node enabled for Reg ops.
 	 */
 	int fd;
 };