From 7efdab657b56c4d34749ca7e5f617c64f65e0a03 Mon Sep 17 00:00:00 2001
From: Mohammed Siddiq <quic_msiddiq@quicinc.com>
Date: Wed, 29 Dec 2021 17:43:01 +0530
Subject: [PATCH] cnss2: Add api to return the pci slot in use

Add api to return the pci slot in use. With the new targets,
QCA6490/kiwi devices are getting attached on pci slot 1
as well, so host driver call this exported api to get the pci
slot of device attached.

Change-Id: Ief51204258090df16b48267f3aeb851ded365525
---
 cnss2/pci.c | 21 +++++++++++++++++++++
 inc/cnss2.h |  1 +
 2 files changed, 22 insertions(+)

diff --git a/cnss2/pci.c b/cnss2/pci.c
index 488368d7ea..ab8086e33d 100644
--- a/cnss2/pci.c
+++ b/cnss2/pci.c
@@ -1655,6 +1655,27 @@ void cnss_pci_unlock_reg_window(struct device *dev, unsigned long *flags)
 }
 EXPORT_SYMBOL(cnss_pci_unlock_reg_window);
 
+int cnss_get_pci_slot(struct device *dev)
+{
+	struct pci_dev *pci_dev = to_pci_dev(dev);
+	struct cnss_pci_data *pci_priv = cnss_get_pci_priv(pci_dev);
+	struct cnss_plat_data *plat_priv = NULL;
+
+	if (!pci_priv) {
+		cnss_pr_err("pci_priv is NULL\n");
+		return -EINVAL;
+	}
+
+	plat_priv = pci_priv->plat_priv;
+	if (!plat_priv) {
+		cnss_pr_err("plat_priv is NULL\n");
+		return -ENODEV;
+	}
+
+	return plat_priv->rc_num;
+}
+EXPORT_SYMBOL(cnss_get_pci_slot);
+
 /**
  * cnss_pci_dump_bl_sram_mem - Dump WLAN device bootloader debug log
  * @pci_priv: driver PCI bus context pointer
diff --git a/inc/cnss2.h b/inc/cnss2.h
index 1376995b67..c836e4a586 100644
--- a/inc/cnss2.h
+++ b/inc/cnss2.h
@@ -275,4 +275,5 @@ extern int cnss_get_mem_seg_count(enum cnss_remote_mem_type type, u32 *seg);
 extern int cnss_get_mem_segment_info(enum cnss_remote_mem_type type,
 				     struct cnss_mem_segment segment[],
 				     u32 segment_count);
+extern int cnss_get_pci_slot(struct device *dev);
 #endif /* _NET_CNSS2_H */