Re: [PATCH V3 0/6] PCI: tegra: Enable PCIe C5 controller of Tegra194 in p2972-0000 platform

[Vidya Sagar]

Hi Lorenzo / Bjorn,
Can you please review this series?
I have Reviewed-by and Acked-by from Rob, Thierry and Andrew already.

Thanks,
Vidya Sagar

On 8/28/2019 10:58 PM, Vidya Sagar wrote:
> This patch series enables Tegra194's C5 controller which owns x16 slot in
> p2972-0000 platform. C5 controller's PERST# and CLKREQ# are not configured as
> output and bi-directional signals by default and hence they need to be
> configured explicitly. Also, x16 slot's 3.3V and 12V supplies are controlled
> through GPIOs and hence they need to be enabled through regulator framework.
> This patch series adds required infrastructural support to address both the
> aforementioned requirements.
> Testing done on p2972-0000 platform
> - Able to enumerate devices connected to x16 slot (owned by C5 controller)
> - Enumerated device's functionality verified
> - Suspend-Resume sequence is verified with device connected to x16 slot
>
> V3:
> * Addressed some more review comments from Andrew Murray and Thierry Reding
>
> V2:
> * Changed the order of patches in the series for easy merging
> * Addressed review comments from Thierry Reding and Andrew Murray
>
> Vidya Sagar (6):
>    dt-bindings: PCI: tegra: Add sideband pins configuration entries
>    dt-bindings: PCI: tegra: Add PCIe slot supplies regulator entries
>    PCI: tegra: Add support to configure sideband pins
>    PCI: tegra: Add support to enable slot regulators
>    arm64: tegra: Add configuration for PCIe C5 sideband signals
>    arm64: tegra: Add PCIe slot supply information in p2972-0000 platform
>
>   .../bindings/pci/nvidia,tegra194-pcie.txt     | 16 ++++
>   .../arm64/boot/dts/nvidia/tegra194-p2888.dtsi | 24 +++++
>   .../boot/dts/nvidia/tegra194-p2972-0000.dts   |  4 +-
>   arch/arm64/boot/dts/nvidia/tegra194.dtsi      | 38 +++++++-
>   drivers/pci/controller/dwc/pcie-tegra194.c    | 94 ++++++++++++++++++-
>   5 files changed, 172 insertions(+), 4 deletions(-)