PCI: tegra194: Remove unnecessary L1SS disable code

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The DWC core clears the L1 Substates Supported bits unless the driver sets
the "dw_pcie.l1ss_support" flag.

The tegra194 init_host_aspm() sets "dw_pcie.l1ss_support" if the platform
has the "supports-clkreq" DT property.  If "supports-clkreq" is absent,
"dw_pcie.l1ss_support" is not set, and the DWC core will clear the L1
Substates Supported bits.

The tegra194 code to clear the L1 Substates Supported bits is unnecessary,
so remove it.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20251118214312.2598220-3-helgaas@kernel.org

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This commit is contained in:

Bjorn Helgaas 2025-11-18 15:42:16 -06:00

parent a00bba406b

commit 07c99eac0b

1 changed files with 5 additions and 40 deletions

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drivers/pci/controller/dwc/pcie-tegra194.c

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