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From: Manikanta Maddireddy <mmaddireddy@nvidia.com>
To: <bhelgaas@google.com>, <lpieralisi@kernel.org>,
	<kwilczynski@kernel.org>, <mani@kernel.org>, <robh@kernel.org>,
	<krzk+dt@kernel.org>, <conor+dt@kernel.org>,
	<thierry.reding@gmail.com>, <jonathanh@nvidia.com>,
	<kishon@kernel.org>, <arnd@arndb.de>,
	<gregkh@linuxfoundation.org>, <Frank.Li@nxp.com>,
	<den@valinux.co.jp>, <hongxing.zhu@nxp.com>,
	<jingoohan1@gmail.com>, <vidyas@nvidia.com>, <cassel@kernel.org>,
	<18255117159@163.com>
Cc: <linux-pci@vger.kernel.org>, <linux-tegra@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>,
	Manikanta Maddireddy <mmaddireddy@nvidia.com>
Subject: [PATCH v8 11/14] PCI: tegra194: Use DWC IP core version
Date: Wed, 25 Mar 2026 00:37:52 +0530	[thread overview]
Message-ID: <20260324190755.1094879-12-mmaddireddy@nvidia.com> (raw)
In-Reply-To: <20260324190755.1094879-1-mmaddireddy@nvidia.com>

Tegra194 PCIe driver uses custom version number to detect Tegra194 and
Tegra234 IPs. With version detect logic added, version check results
in mismatch warnings.

  tegra194-pcie 14100000.pcie: Versions don't match (0000562a != 3536322a)

Use HW version numbers which matches to PORT_LOGIC.PCIE_VERSION_OFF in
Tegra194 driver to avoid this kernel warnings.

Fixes: a54e19073718 ("PCI: tegra194: Add Tegra234 PCIe support")
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
---
Changes V8: Split into two patches
Changes V1 -> V7: None

 drivers/pci/controller/dwc/pcie-designware.h | 2 ++
 drivers/pci/controller/dwc/pcie-tegra194.c   | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
index f4cf1602cc99..5bceadbd2c9f 100644
--- a/drivers/pci/controller/dwc/pcie-designware.h
+++ b/drivers/pci/controller/dwc/pcie-designware.h
@@ -34,8 +34,10 @@
 #define DW_PCIE_VER_470A		0x3437302a
 #define DW_PCIE_VER_480A		0x3438302a
 #define DW_PCIE_VER_490A		0x3439302a
+#define DW_PCIE_VER_500A		0x3530302a
 #define DW_PCIE_VER_520A		0x3532302a
 #define DW_PCIE_VER_540A		0x3534302a
+#define DW_PCIE_VER_562A		0x3536322a
 
 #define __dw_pcie_ver_cmp(_pci, _ver, _op) \
 	((_pci)->version _op DW_PCIE_VER_ ## _ver)
diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c
index 1cc80f3065d5..4cc0bdb0b9da 100644
--- a/drivers/pci/controller/dwc/pcie-tegra194.c
+++ b/drivers/pci/controller/dwc/pcie-tegra194.c
@@ -35,8 +35,8 @@
 #include <soc/tegra/bpmp-abi.h>
 #include "../../pci.h"
 
-#define TEGRA194_DWC_IP_VER			0x490A
-#define TEGRA234_DWC_IP_VER			0x562A
+#define TEGRA194_DWC_IP_VER			DW_PCIE_VER_500A
+#define TEGRA234_DWC_IP_VER			DW_PCIE_VER_562A
 
 #define APPL_PINMUX				0x0
 #define APPL_PINMUX_PEX_RST			BIT(0)
-- 
2.34.1


  parent reply	other threads:[~2026-03-24 19:09 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-24 19:07 [PATCH v8 00/14] Fixes to pcie-tegra194 driver Manikanta Maddireddy
2026-03-24 19:07 ` [PATCH v8 01/14] PCI: tegra194: Fix polling delay for L2 state Manikanta Maddireddy
2026-03-24 19:07 ` [PATCH v8 02/14] PCI: tegra194: Increase LTSSM poll time on surprise down Manikanta Maddireddy
2026-03-24 19:07 ` [PATCH v8 03/14] PCI: tegra194: Disable LTSSM after transition to detect " Manikanta Maddireddy
2026-03-24 19:07 ` [PATCH v8 04/14] PCI: tegra194: Don't force the device into the D0 state before L2 Manikanta Maddireddy
2026-03-24 19:07 ` [PATCH v8 05/14] PCI: tegra194: Disable PERST IRQ only in Endpoint mode Manikanta Maddireddy
2026-03-24 19:07 ` [PATCH v8 06/14] PCI: tegra194: Use devm_gpiod_get_optional() to parse "nvidia,refclk-select" Manikanta Maddireddy
2026-03-24 19:07 ` [PATCH v8 07/14] PCI: tegra194: Disable direct speed change for Endpoint Manikanta Maddireddy
2026-03-24 19:07 ` [PATCH v8 08/14] PCI: tegra194: Set LTR message request before PCIe link up Manikanta Maddireddy
2026-03-24 19:07 ` [PATCH v8 09/14] PCI: tegra194: Allow system suspend when the Endpoint link is not up Manikanta Maddireddy
2026-04-08 20:59   ` Bjorn Helgaas
2026-04-08 21:03     ` Bjorn Helgaas
2026-04-09  6:59       ` Manikanta Maddireddy
2026-03-24 19:07 ` [PATCH v8 10/14] PCI: tegra194: Free up EP resources during remove() Manikanta Maddireddy
2026-03-24 19:07 ` Manikanta Maddireddy [this message]
2026-03-24 19:07 ` [PATCH v8 12/14] PCI: dwc: Apply ECRC workaround to DesignWare 5.00a as well Manikanta Maddireddy
2026-04-08 22:24   ` Bjorn Helgaas
2026-04-09  8:51     ` Manikanta Maddireddy
2026-04-09 18:45       ` Bjorn Helgaas
2026-04-10  6:32         ` Manikanta Maddireddy
2026-03-24 19:07 ` [PATCH v8 13/14] PCI: tegra194: Disable L1.2 capability of Tegra234 EP Manikanta Maddireddy
2026-03-24 19:07 ` [PATCH v8 14/14] PCI: tegra194: Fix CBB timeout caused by DBI access before core power-on Manikanta Maddireddy
2026-04-04 15:10 ` [PATCH v8 00/14] Fixes to pcie-tegra194 driver Manivannan Sadhasivam

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