linux-kernel - Re: [RFC,v14 0/5] Add DT based PCIe wake support in PCI core driver

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Message-ID: <feee5e5b-565e-8575-2bbe-61b35fa8f1dd@quicinc.com>
Date:   Wed, 6 Dec 2023 20:14:56 +0530
From:   Krishna Chaitanya Chundru <quic_krichai@...cinc.com>
To:     Manikanta Maddireddy <mmaddireddy@...dia.com>,
        <bhelgaas@...gle.com>, <thierry.reding@...il.com>,
        <petlozup@...dia.com>, <rafael.j.wysocki@...el.com>,
        <lpieralisi@...nel.org>, <robh@...nel.org>,
        <jeffy.chen@...k-chips.com>
CC:     <krzysztof.kozlowski+dt@...aro.org>, <jonathanh@...dia.com>,
        <dmitry.osipenko@...labora.com>, <viresh.kumar@...aro.org>,
        <gregkh@...uxfoundation.org>, <steven.price@....com>,
        <kw@...ux.com>, <linux-pci@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-tegra@...r.kernel.org>, <linux-pm@...r.kernel.org>,
        <vidyas@...dia.com>
Subject: Re: [RFC,v14 0/5] Add DT based PCIe wake support in PCI core driver

Hi Manikanta,

I don't see any update on this series after comments.

Is there  any plans to take up this series.

Thanks & Regards,

Krishna Chaitanya.

On 2/8/2023 4:46 PM, Manikanta Maddireddy wrote:
> Below series [1] attempted to support DT based PCIe wake feature in generic
> PCI core driver. This series was left at v13 and final comments are not
> addressed. I am continuing this series from v14 by addressing all comments
> in v13. I dropped rockchip device tree patch because I don't have hardware
> to verify it. Instead, I verified these patches on NVIDIA Jetson AGX Orin
> Developer Kit and included its device tree changes in this series.
>
> [1] https://lore.kernel.org/all/20171226023646.17722-1-jeffy.chen@rock-chips.com/
>
> Changes in v14:
> Updated commit message for DT bindings patch to reflect that DT properties
> are tied to PCI-PCI Bridge.
> Addressed review comments on PCI interrupt parsing patch.
> Dropped rockchip device tree patch.
> Added Jetson AGX OrinDeveloper Kit device tree and Tegra PMC patches.
>
> Changes in v13:
> Fix compiler error reported by kbuild test robot <fengguang.wu@...el.com>
>
> Changes in v12:
> Only add irq definitions for PCI devices and rewrite the commit message.
> Enable the wake irq in noirq stage to avoid possible irq storm.
>
> Changes in v11:
> Address Brian's comments.
> Only support 1-per-device PCIe WAKE# pin as suggested.
> Move to pcie port as Brian suggested.
>
> Changes in v10:
> Use device_set_wakeup_capable() instead of device_set_wakeup_enable(),
> since dedicated wakeirq will be lost in device_set_wakeup_enable(false).
>
> Changes in v9:
> Add section for PCI devices and rewrite the commit message.
> Fix check error in .cleanup().
> Move dedicated wakeirq setup to setup() callback and use
> device_set_wakeup_enable() to enable/disable.
> Rewrite the commit message.
>
> Changes in v8:
> Add optional "pci", and rewrite commit message.
> Add pci-of.c and use platform_pm_ops to handle the PCIe WAKE# signal.
> Rewrite the commit message.
>
> Changes in v7:
> Move PCIE_WAKE handling into pci core.
>
> Changes in v6:
> Fix device_init_wake error handling, and add some comments.
>
> Changes in v5:
> Move to pci.txt
> Rebase.
> Use "wakeup" instead of "wake"
>
> Changes in v3:
> Fix error handling.
>
> Changes in v2:
> Use dev_pm_set_dedicated_wake_irq.
>
> Jeffy Chen (3):
>    dt-bindings: PCI: Add definition of PCIe WAKE# irq and PCI irq
>    of/irq: Adjust of_pci_irq parsing for multiple interrupts
>    PCI / PM: Add support for the PCIe WAKE# signal for OF
>
> Manikanta Maddireddy (2):
>    arm64: tegra: Add PCIe port node with PCIe WAKE# for C1 controller
>    soc/tegra: pmc: Add Tegra234 PCIe wake event
>
>   Documentation/devicetree/bindings/pci/pci.txt |  8 +++
>   .../nvidia/tegra234-p3737-0000+p3701-0000.dts | 11 ++++
>   drivers/pci/of.c                              | 63 ++++++++++++++++++-
>   drivers/pci/pci-driver.c                      | 10 +++
>   drivers/pci/pci.c                             |  7 +++
>   drivers/pci/pci.h                             |  8 +++
>   drivers/soc/tegra/pmc.c                       |  1 +
>   7 files changed, 105 insertions(+), 3 deletions(-)
>