linux-kernel - Re: [PATCH v5 0/9] PCI: mediatek: fixup find_port, enable

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Date:   Sat, 29 Sep 2018 13:58:03 +0800
From:   Ryder Lee <ryder.lee@...iatek.com>
To:     <honghui.zhang@...iatek.com>
CC:     <lorenzo.pieralisi@....com>, <bhelgaas@...gle.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>, <linux-pci@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <ulf.hansson@...aro.org>,
        <marc.zyngier@....com>, <matthias.bgg@...il.com>,
        <devicetree@...r.kernel.org>, <yingjoe.chen@...iatek.com>,
        <eddie.huang@...iatek.com>, <youlin.pei@...iatek.com>,
        <yt.shen@...iatek.com>, <sean.wang@...iatek.com>
Subject: Re: [PATCH v5 0/9] PCI: mediatek: fixup find_port, enable_msi and
 add pm, module support

On Fri, 2018-09-28 at 18:04 +0800, honghui.zhang@...iatek.com wrote:
> From: Honghui Zhang <honghui.zhang@...iatek.com>
> 
> This patchset includes misc patchs:
> 
> The patch 1 fixup the mtk_pcie_find_port logic which will cause system
> could not touch the EP's configuration space that connected to PCIe slot 1.
> 
> The patch 2 fixup the class type for MT7622.
> The patch 6 fixup the enable msi logic, the operation to enable msi
> should be after system clock is enabled. Call mtk_pcie_enable_msi in
> mtk_pcie_startup_port_v2 since the clock was all enabled at that time.
> 
> The patch 7 was rebased and refactor of the v4 patch[1], changes are:
>  -Add PM support for MT7622.
>  -Using mtk_pcie_enable_port to re-establish the link when resumed.
>  -Rebased on this patchset.
> 
> The patch 9 add loadable kernel module support.
> 
> [1] https://patchwork.kernel.org/patch/10479079
> 
> Change since v4:
>  - Add patch 2 to fixup class type for MT7622.
>  - Add patch 3 to remove the redundant dev->pm_domain check
>  - Add patch 4 to covert to use pci_host_probe
>  - Add patch 5 to re-arrange the function define, this is a prepare patch for
>    fixup the enable_msi logic, no functional changed have been made by this one.
>  - Add patch 8 to save the GIC IRQ in mtk_pcie_port as a prepare patch for tear
>    down the irq when remove the kernel module.
>  - Re-arrange the find_port flow suggest by Lorenzo to make the code parse easier
>    for the patch 1.
>  - Remove the .pm_support in mtk_pcie_soc in patch 7 since if system pm was not
>    supported, then those pm callbacks will never be executed for MT7622. So the
>    .pm_support is not needed.
> 
> Change since v3:
>  - Remove pm_runtime_XXX ops in suspend and resume callbacks in the third patch.
>  - Rebase to 4.19-rc1.
> 
> Change since v2:
>  - Fix the list_for_each_entry_safe parameter error.
>  - Add Ryder's Acked-by flag.
> 
> Change since v1:
>  - A bit of code refact of the first patch suggested by Andy Shevchenko, and
>    commit message updated.
>  - Using __maybe_unused.
>  - Remove the redundant list_empty check of the fourth patch.
> 
> Honghui Zhang (9):
>   PCI: mediatek: Using slot's devfn for compare to fix
>     mtk_pcie_find_port logic
>   PCI: mediatek: Fixup class ID for MT7622 as PCI_CLASS_BRIDGE_PCI
>   PCI: mediatek: Remove the redundant dev->pm_domain check
>   PCI: mediatek: Convert to use pci_host_probe()
>   PCI: mediatek: Move the mtk_pcie_startup_port_v2 function's define
>     after mtk_pcie_setup_irq
>   PCI: mediatek: Enable msi after clock enabled
>   PCI: mediatek: Add system pm support for MT2712 and MT7622
>   PCI: mediatek: Save the GIC IRQ in mtk_pcie_port
>   PCI: mediatek: Add loadable kernel module support
> 
>  drivers/pci/controller/Kconfig         |   2 +-
>  drivers/pci/controller/pcie-mediatek.c | 326 +++++++++++++++++++++------------
>  2 files changed, 210 insertions(+), 118 deletions(-)
> 

Acked-by: Ryder Lee <ryder.lee@...iatek.com> for the whole series.