linux-kernel - [PATCH] PCI: xilinx-cpm: Add cpm5_csr register mapping for CPM5

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Message-ID: <20250317124136.1317723-1-thippeswamy.havalige@amd.com>
Date: Mon, 17 Mar 2025 18:11:36 +0530
From: Thippeswamy Havalige <thippeswamy.havalige@....com>
To: <bhelgaas@...gle.com>, <lpieralisi@...nel.org>, <kw@...ux.com>,
	<manivannan.sadhasivam@...aro.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
	<conor+dt@...nel.org>
CC: <linux-pci@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <michal.simek@....com>,
	<bharat.kumar.gogada@....com>, Thippeswamy Havalige
	<thippeswamy.havalige@....com>
Subject: [PATCH] PCI: xilinx-cpm: Add cpm5_csr register mapping for CPM5_HOST1 variant

This commit updates the CPM5 variant check to include CPM5_HOST1.
Previously, only CPM5 was considered when mapping the "cpm_csr" register.

With this change, CPM5_HOST1 is also supported, ensuring proper resource
mapping for this variant.

Signed-off-by: Thippeswamy Havalige <thippeswamy.havalige@....com>
---
 drivers/pci/controller/pcie-xilinx-cpm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pcie-xilinx-cpm.c b/drivers/pci/controller/pcie-xilinx-cpm.c
index d0ab187..13ca493 100644
--- a/drivers/pci/controller/pcie-xilinx-cpm.c
+++ b/drivers/pci/controller/pcie-xilinx-cpm.c
@@ -542,7 +542,8 @@ static int xilinx_cpm_pcie_parse_dt(struct xilinx_cpm_pcie *port,
 	if (IS_ERR(port->cfg))
 		return PTR_ERR(port->cfg);
 
-	if (port->variant->version == CPM5) {
+	if (port->variant->version == CPM5 ||
+	    port->variant->version == CPM5_HOST1) {
 		port->reg_base = devm_platform_ioremap_resource_byname(pdev,
 								    "cpm_csr");
 		if (IS_ERR(port->reg_base))
-- 
1.8.3.1