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

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Date:   Wed, 28 Aug 2019 11:10:28 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Vidya Sagar <vidyas@...dia.com>
Cc:     lorenzo.pieralisi@....com, bhelgaas@...gle.com, robh+dt@...nel.org,
        jonathanh@...dia.com, kishon@...com, gustavo.pimentel@...opsys.com,
        digetx@...il.com, mperttunen@...dia.com, linux-pci@...r.kernel.org,
        devicetree@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        kthota@...dia.com, mmaddireddy@...dia.com, sagar.tv@...il.com
Subject: Re: [PATCH 0/6] PCI: tegra: Enable PCIe C5 controller of Tegra194 in
 p2972-0000 platform

On Mon, Aug 26, 2019 at 01:01:37PM +0530, 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
> 
> Vidya Sagar (6):
>   dt-bindings: PCI: tegra: Add sideband pins configuration entries
>   arm64: tegra: Add configuration for PCIe C5 sideband signals
>   PCI: tegra: Add support to configure sideband pins
>   dt-bindings: PCI: tegra: Add PCIe slot supplies regulator entries
>   arm64: tegra: Add PCIe slot supply information in p2972-0000 platform
>   PCI: tegra: Add support to enable slot regulators

Hi Vidya,

when you resend with review comments addressed, can you please reorder
the patches slightly? I think it's more natural to order them like this:

    dt-bindings: PCI: tegra: Add sideband pins configuration entries
    PCI: tegra: Add support to configure sideband pins
    dt-bindings: PCI: tegra: Add PCIe slot supplies regulator entries
    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

Or perhaps even like this:

    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

That makes it more obvious that patches 1-2 need an Acked-by from Rob
and patches 1-4 need to go through Lorenzo's tree and that I'll pick up
patches 5-6.

Thierry

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