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From: Frank Li <Frank.Li@nxp.com>
To: "Richard Zhu" <hongxing.zhu@nxp.com>,
	"Lucas Stach" <l.stach@pengutronix.de>,
	"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Rob Herring" <robh@kernel.org>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Shawn Guo" <shawnguo@kernel.org>,
	"Sascha Hauer" <s.hauer@pengutronix.de>,
	"Pengutronix Kernel Team" <kernel@pengutronix.de>,
	"Fabio Estevam" <festevam@gmail.com>,
	"NXP Linux Team" <linux-imx@nxp.com>,
	"Philipp Zabel" <p.zabel@pengutronix.de>,
	"Liam Girdwood" <lgirdwood@gmail.com>,
	"Mark Brown" <broonie@kernel.org>,
	"Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org>,
	"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
	"Conor Dooley" <conor+dt@kernel.org>
Cc: linux-pci@vger.kernel.org, imx@lists.linux.dev,
	 linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,  bpf@vger.kernel.org,
	devicetree@vger.kernel.org,  Frank Li <Frank.Li@nxp.com>
Subject: [PATCH v5 01/12] PCI: imx6: Fix establish link failure in EP mode for iMX8MM and iMX8MP
Date: Tue, 28 May 2024 15:39:14 -0400	[thread overview]
Message-ID: <20240528-pci2_upstream-v5-1-750aa7edb8e2@nxp.com> (raw)
In-Reply-To: <20240528-pci2_upstream-v5-0-750aa7edb8e2@nxp.com>

From: Richard Zhu <hongxing.zhu@nxp.com>

Add IMX6_PCIE_FLAG_HAS_APP_RESET flag to IMX8MM_EP and IMX8MP_EP drvdata.
This flag was overlooked during code restructuring. It is crucial to
release the app-reset from the System Reset Controller before initiating
LTSSM to rectify the issue

Fixes: 0c9651c21f2a ("PCI: imx6: Simplify reset handling by using *_FLAG_HAS_*_RESET")
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
 drivers/pci/controller/dwc/pci-imx6.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 62a4994c55019..e9a16083d79d8 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -1562,7 +1562,8 @@ static const struct imx6_pcie_drvdata drvdata[] = {
 	},
 	[IMX8MM_EP] = {
 		.variant = IMX8MM_EP,
-		.flags = IMX6_PCIE_FLAG_HAS_PHYDRV,
+		.flags = IMX6_PCIE_FLAG_HAS_APP_RESET |
+			 IMX6_PCIE_FLAG_HAS_PHYDRV,
 		.mode = DW_PCIE_EP_TYPE,
 		.gpr = "fsl,imx8mm-iomuxc-gpr",
 		.clk_names = imx8mm_clks,
@@ -1573,7 +1574,8 @@ static const struct imx6_pcie_drvdata drvdata[] = {
 	},
 	[IMX8MP_EP] = {
 		.variant = IMX8MP_EP,
-		.flags = IMX6_PCIE_FLAG_HAS_PHYDRV,
+		.flags = IMX6_PCIE_FLAG_HAS_APP_RESET |
+			 IMX6_PCIE_FLAG_HAS_PHYDRV,
 		.mode = DW_PCIE_EP_TYPE,
 		.gpr = "fsl,imx8mp-iomuxc-gpr",
 		.clk_names = imx8mm_clks,

-- 
2.34.1


  reply	other threads:[~2024-05-28 19:39 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-28 19:39 [PATCH v5 00/12] PCI: imx6: Fix\rename\clean up and add lut information for imx95 Frank Li
2024-05-28 19:39 ` Frank Li [this message]
2024-05-28 19:39 ` [PATCH v5 02/12] PCI: imx6: Fix i.MX8MP PCIe EP's occasional failure to trigger MSI Frank Li
2024-05-28 19:39 ` [PATCH v5 03/12] PCI: imx6: Rename imx6_* with imx_* Frank Li
2024-05-28 19:39 ` [PATCH v5 04/12] PCI: imx6: Introduce SoC specific callbacks for controlling REFCLK Frank Li
2024-05-28 19:39 ` [PATCH v5 05/12] PCI: imx6: Simplify switch-case logic by involve core_reset callback Frank Li
2024-05-28 19:39 ` [PATCH v5 06/12] PCI: imx6: Improve comment for workaround ERR010728 Frank Li
2024-05-28 19:39 ` [PATCH v5 07/12] PCI: imx6: Add help function imx_pcie_match_device() Frank Li
2024-05-28 19:39 ` [PATCH v5 08/12] PCI: imx6: Config look up table(LUT) to support MSI ITS and IOMMU for i.MX95 Frank Li
2024-05-30 23:08   ` Bjorn Helgaas
2024-05-31 13:52     ` Marc Zyngier
2024-05-31 14:58     ` Robin Murphy
2024-05-31 16:25       ` Frank Li
2024-06-03 17:19       ` Bjorn Helgaas
2024-06-03 18:42         ` Frank Li
2024-06-03 18:56           ` Bjorn Helgaas
2024-06-03 20:07             ` Frank Li
2024-06-06 20:24               ` Frank Li
2024-06-13 22:41                 ` Bjorn Helgaas
2024-06-17 14:26                   ` Frank Li
2024-06-21 22:29                     ` Frank Li
2024-06-21 22:43                       ` Bjorn Helgaas
2024-06-22 17:38                         ` Bjorn Helgaas
2024-06-24 15:00                           ` Frank Li
2024-06-03 20:20         ` Robin Murphy
2024-06-03 21:04           ` Frank Li
2024-06-04 15:25             ` Marc Zyngier
2024-06-04 15:47               ` Frank Li
2024-06-03 20:29       ` Laurentiu Tudor
2024-06-03 21:16         ` Frank Li
2024-05-31 16:14     ` Frank Li
2024-06-03 17:11       ` Bjorn Helgaas
2024-06-03 18:21         ` Frank Li
2024-06-22  4:11   ` Manivannan Sadhasivam
2024-06-24 15:06     ` Frank Li
2024-05-28 19:39 ` [PATCH v5 09/12] PCI: imx6: Consolidate redundant if-checks Frank Li
2024-05-28 19:39 ` [PATCH v5 10/12] dt-bindings: imx6q-pcie: Add i.MX8Q pcie compatible string Frank Li
2024-05-28 19:39 ` [PATCH v5 11/12] PCI: imx6: Call: Common PHY API to set mode, speed, and submode Frank Li
2024-05-28 19:39 ` [PATCH v5 12/12] PCI: imx6: Add i.MX8Q PCIe root complex (RC) support Frank Li
2024-05-28 22:31 ` [PATCH v5 00/12] PCI: imx6: Fix\rename\clean up and add lut information for imx95 Bjorn Helgaas
2024-05-29 15:00   ` Frank Li
2024-05-30 17:27     ` Bjorn Helgaas
2024-05-30 17:56       ` Frank Li
2024-06-06 21:24 ` Frank Li

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