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

Frank Li
2024-05-28T19:39:35Z

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