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[v5,01/12] PCI: imx6: Fix establish link failure in EP mode for iMX8MM and iMX8MP

Message ID 20240528-pci2_upstream-v5-1-750aa7edb8e2@nxp.com (mailing list archive)
State Not Applicable
Headers show
Series PCI: imx6: Fix\rename\clean up and add lut information for imx95 | expand

Checks

Context Check Description
netdev/tree_selection success Not a local patch

Commit Message

Frank Li May 28, 2024, 7:39 p.m. UTC 
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(-)
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Patch

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,