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| author | Vidya Sagar <vidyas@nvidia.com> | 2022-07-21 19:50:51 +0530 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2022-07-22 17:14:57 -0500 |
| commit | f899983f71e5a86d2544b9fd5ab20819278942ad (patch) | |
| tree | dd0d98be8853abbda102524398bc9aa095badd00 /drivers/pci | |
| parent | e05fd6ae77c3e2cc0dba283005d24b6d56d2b1fa (diff) | |
| download | linux-stable-f899983f71e5a86d2544b9fd5ab20819278942ad.tar.gz linux-stable-f899983f71e5a86d2544b9fd5ab20819278942ad.tar.bz2 linux-stable-f899983f71e5a86d2544b9fd5ab20819278942ad.zip | |
PCI: tegra194: Extend Endpoint mode support
Since only Controller-5 can be used in the Endpoint mode in P2972-0000
platform, support is available only for Controller-5.
Extend that support by enabling the Endpoint mode capable controller during
initialization which otherwise is not required if it is only Controller-5.
Link: https://lore.kernel.org/r/20220721142052.25971-16-vidyas@nvidia.com
Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-tegra194.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c index bac2e1ad0a29..fc373b6efd00 100644 --- a/drivers/pci/controller/dwc/pcie-tegra194.c +++ b/drivers/pci/controller/dwc/pcie-tegra194.c @@ -1650,6 +1650,13 @@ static void pex_ep_event_pex_rst_deassert(struct tegra_pcie_dw *pcie) return; } + ret = tegra_pcie_bpmp_set_ctrl_state(pcie, true); + if (ret) { + dev_err(pcie->dev, "Failed to enable controller %u: %d\n", + pcie->cid, ret); + goto fail_set_ctrl_state; + } + ret = tegra_pcie_bpmp_set_pll_state(pcie, true); if (ret) { dev_err(dev, "Failed to init UPHY for PCIe EP: %d\n", ret); @@ -1798,6 +1805,8 @@ fail_core_apb_rst: fail_core_clk_enable: tegra_pcie_bpmp_set_pll_state(pcie, false); fail_pll_init: + tegra_pcie_bpmp_set_ctrl_state(pcie, false); +fail_set_ctrl_state: pm_runtime_put_sync(dev); } |