From 0f2a737b8ae387cb0371f472cca5d61805eea466 Mon Sep 17 00:00:00 2001
From: Nagarjuna Kristam <nkristam@nvidia.com>
Date: Wed, 16 Apr 2025 12:19:22 +0530
Subject: [PATCH] linux: pcie-dma: Update calibration info for DMA init API

Add calibration details of register used by DMA driver.

Bug 4635515

Signed-off-by: Nagarjuna Kristam <nkristam@nvidia.com>
Change-Id: I4621184cbff919b73b990cd62543404367d8df8d
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3341775
Reviewed-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
---
 include/linux/tegra-pcie-dma.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/linux/tegra-pcie-dma.h b/include/linux/tegra-pcie-dma.h
index 10ebc36b..35530756 100644
--- a/include/linux/tegra-pcie-dma.h
+++ b/include/linux/tegra-pcie-dma.h
@@ -225,6 +225,10 @@ struct tegra_pcie_dma_xfer_info {
  * @brief
  * API to perform DMA SW and HW initialization.
  *
+ * @calib
+ *  For NVPCIE_DMA_SOC_T264 in info->soc, "xdma" reg-name in "dev" parameter from
+ *  struct tegra_pcie_dma_init_info is used. Refer CAL_NET_PIF$CalPcieEpLinux.
+ *
  * @usage
  * - Allowed context for the API call
  *  - Interrupt: No