diff options
| author | Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> | 2024-04-30 09:13:42 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2024-07-10 00:56:30 +0300 |
| commit | 912315715d7b74f7abdb6f063ebace44ee288af9 (patch) | |
| tree | ef49a4317a4fd4477f487412412477c327f57c97 /drivers | |
| parent | c71b5eb3b86448aa4bad6b2ca94c6e1d1962a5fb (diff) | |
| download | linux-912315715d7b74f7abdb6f063ebace44ee288af9.tar.xz | |
PCI: qcom-ep: Disable resources unconditionally during PERST# assert
All EP specific resources are enabled during PERST# deassert. As a counter
operation, all resources should be disabled during PERST# assert. There is
no point in skipping that if the link was not enabled.
This will also result in enablement of the resources twice if PERST# got
deasserted again. So remove the check from qcom_pcie_perst_assert() and
disable all the resources unconditionally.
Fixes: f55fee56a631 ("PCI: qcom-ep: Add Qualcomm PCIe Endpoint controller driver")
Link: https://lore.kernel.org/linux-pci/20240430-pci-epf-rework-v4-1-22832d0d456f@linaro.org
Tested-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Niklas Cassel <cassel@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-qcom-ep.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/pci/controller/dwc/pcie-qcom-ep.c b/drivers/pci/controller/dwc/pcie-qcom-ep.c index e2a28939b958..20c4a8063efb 100644 --- a/drivers/pci/controller/dwc/pcie-qcom-ep.c +++ b/drivers/pci/controller/dwc/pcie-qcom-ep.c @@ -521,12 +521,6 @@ err_disable_resources: static void qcom_pcie_perst_assert(struct dw_pcie *pci) { struct qcom_pcie_ep *pcie_ep = to_pcie_ep(pci); - struct device *dev = pci->dev; - - if (pcie_ep->link_status == QCOM_PCIE_EP_LINK_DISABLED) { - dev_dbg(dev, "Link is already disabled\n"); - return; - } dw_pcie_ep_cleanup(&pci->ep); qcom_pcie_disable_resources(pcie_ep); |