On 23/02/2026 18:41, Manikanta Maddireddy wrote:
> This series[1] was originally posted by Vidya Sagar, and I have rebased
> it onto 6.19.0-rc6-next. I addressed review comments and split this into
> two series, one for fixes(current) and the other is for enhancements.
> I verified these patches on Jetson AGX Orin(Tegra234 SoC).
>
> I added below four new patches to fix bugs, commit message of each
> patch has the details on the bug and fix.
> - PCI: tegra194: Use HW version number
> - PCI: tegra194: Fix CBB timeout caused by DBI access before core power-on
> - PCI: tegra194: Disable PERST IRQ only in Endpoint mode
>
> Rest of the patches are same as the original V3 series, just rebased them on
> 6.19.0-rc6-next.
>
> I fixed the missing PATCH prefix in the subject in V6 and also reordered the
> patches with regard to fixes tag.
>
> Verification details.
> - I verified both Root port and Endpoint mode controllers on Tegra234 SoC.
> - Basic sanity Link up, configuration space access and BAR access are verified.
> - I verified that ASPM L1.2 capability is disabled for Endpoint mode.
> - I verified suspend to RAM tests with Endpoint mode.
>
> [1] https://patchwork.kernel.org/project/linux-pci/patch/20221013183854.21087-1-vidyas@nvidia.com/
>
> Manikanta Maddireddy (3):
> PCI: tegra194: Disable PERST IRQ only in Endpoint mode
> PCI: tegra194: Use HW version number
> PCI: tegra194: Fix CBB timeout caused by DBI access before core
> power-on
>
> Vidya Sagar (10):
> PCI: tegra194: Fix polling delay for L2 state
> PCI: tegra194: Refactor LTSSM state polling on surprise down
> PCI: tegra194: Don't force the device into the D0 state before L2
> PCI: tegra194: Use devm_gpiod_get_optional() to parse
> "nvidia,refclk-select"
> PCI: tegra194: Disable direct speed change for EP
> PCI: tegra194: Set LTR message request before PCIe link up
> PCI: tegra194: Apply pinctrl settings for both PCIe RP and EP
> PCI: tegra194: Allow system suspend when the Endpoint link is not up
> PCI: tegra194: Free up EP resources during remove()
> PCI: tegra194: Free resources during controller deinitialization
>
> drivers/pci/controller/dwc/pcie-designware.c | 2 +-
> drivers/pci/controller/dwc/pcie-designware.h | 2 +
> drivers/pci/controller/dwc/pcie-tegra194.c | 191 +++++++++----------
> 3 files changed, 95 insertions(+), 100 deletions(-)
>
For the series ...
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Thanks
Jon
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nvpublic