diff options
| author | Richard Zhu <[email protected]> | 2025-07-09 03:37:22 +0000 |
|---|---|---|
| committer | Bjorn Helgaas <[email protected]> | 2025-07-24 17:09:13 +0000 |
| commit | 2e6ea70690ddd1ffa422423fd0d4523e4dfe4b62 (patch) | |
| tree | e0865b548d4aa65316f89862c9f435237c9a5a14 /drivers/pci/controller/dwc | |
| parent | PCI: imx6: Remove apps_reset toggling from imx_pcie_{assert/deassert}_core_reset (diff) | |
| download | kernel-2e6ea70690ddd1ffa422423fd0d4523e4dfe4b62.tar.gz kernel-2e6ea70690ddd1ffa422423fd0d4523e4dfe4b62.zip | |
PCI: imx6: Delay link start until configfs 'start' written
According to Documentation/PCI/endpoint/pci-endpoint-cfs.rst, the Endpoint
controller (EPC) should only start the link when userspace writes '1' to
the '/sys/kernel/config/pci_ep/controllers/<EPC>/start' attribute, which
ultimately results in calling imx_pcie_start_link() via
pci_epc_start_store().
To align with the documented behavior, do not start the link automatically
when adding the EP controller.
Fixes: 75c2f26da03f ("PCI: imx6: Add i.MX PCIe EP mode support")
Signed-off-by: Richard Zhu <[email protected]>
[mani: reworded commit subject and description]
Signed-off-by: Manivannan Sadhasivam <[email protected]>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Frank Li <[email protected]>
Cc: [email protected]
Link: https://patch.msgid.link/[email protected]
Diffstat (limited to 'drivers/pci/controller/dwc')
| -rw-r--r-- | drivers/pci/controller/dwc/pci-imx6.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c index 240e080825bc..80e48746bbaf 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -1474,9 +1474,6 @@ static int imx_add_pcie_ep(struct imx_pcie *imx_pcie, pci_epc_init_notify(ep->epc); - /* Start LTSSM. */ - imx_pcie_ltssm_enable(dev); - return 0; } |