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PCI: dw-rockchip: Don't wait for link since we can detect Link Up

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The Root Complex specific device tree binding for pcie-dw-rockchip has the
'sys' interrupt marked as required.

The driver requests the 'sys' IRQ unconditionally, and errors out if not
provided.

Thus, we can unconditionally set 'use_linkup_irq', so dw_pcie_host_init()
doesn't wait for the link to come up.

This will skip the wait for link up (since the bus will be enumerated once
the link up IRQ is triggered), which reduces the bootup time.

Link: https://lore.kernel.org/r/20250113-rockchip-no-wait-v1-1-25417f37b92f@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
This commit is contained in:
Niklas Cassel 2025-01-13 11:59:34 +01:00 committed by Bjorn Helgaas
parent 0e0b45ab5d
commit ec9fd499b9
1 changed files with 1 additions and 0 deletions
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drivers/pci/controller/dwc/pcie-dw-rockchip.c
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@ -478,6 +478,7 @@ static int rockchip_pcie_configure_rc(struct platform_device *pdev,
pp = &rockchip->pci.pp;
pp->ops = &rockchip_pcie_host_ops;
pp->use_linkup_irq = true;
ret = dw_pcie_host_init(pp);
if (ret) {