linux-kernel - Re: [PATCH v8 0/4] i.MX7 PCI support

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Message-ID: <20170404225935.GD989@bhelgaas-glaptop.roam.corp.google.com>
Date:   Tue, 4 Apr 2017 17:59:35 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Andrey Smirnov <andrew.smirnov@...il.com>
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Dong Aisheng <dongas86@...il.com>, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        Fabio Estevam <fabio.estevam@....com>, yurovsky@...il.com,
        linux-arm-kernel@...ts.infradead.org,
        Lucas Stach <l.stach@...gutronix.de>
Subject: Re: [PATCH v8 0/4] i.MX7 PCI support

On Tue, Mar 28, 2017 at 08:42:48AM -0700, Andrey Smirnov wrote:
> Hello, everyone:
> 
> This is a eightth iteration of the code that adds PCI-subsystem bits
> necessary for enabling PCI support on i.MX7.
> 
> NOTE: To test this patchset with real i.MX7 hardware, additional
> patches, that are being upstreamed via different trees, are needed. Full
> working tree is availible at:
> 
> 	https://github.com/ndreys/linux/tree/imx7d/pcie-support-v8
> 
> Changes since v7 (can be found at [version7]):
> 
> 	- Collected Reviewed-by for the whole series from Lucas
> 
> Changes since v6 (can be found at [version6]):
> 
> 	- Rebased against latest changes in 'next' of PCI subsystem
>           git tree
> 
> Chagnes since v5 (can be found at [version5]):
> 
> 	- Collected ACKs from Lee and Rob
> 
> Changes since v4 (can be found at [version4]):
> 
> 	- Dropped typo-fix patch (originally patch #1 of the
>           series).
> 
> 	- Added patch with workaround to address speed change false
>           failures (I kept it as a separate patch to better document
>           exchange with NXP/Freescale that lead to that patch)
> 
> 	- Added patch to avoid speed change on links configured Gen1
>           only (Let me know if that is a terrible idea)
> 
> 	- Addressed section mismatch problem by moving call to
>           hook_fault_code to happend before driver registration.
> 
> Changes since v3 (can be found at [version3]):
> 	- Move all of the reset_control_assert's into imx6_pcie_assert_core_reset
> 	- Documented required reset and power domain DT bindings
> 
> Changes since v2 (can be found at [version2]):
> 
> 	- Collected Reviewed-by for patch #2 from Lucas
> 	- Reset logic implementation moved out into a reset controller
>           driver (see [reset1])
> 	- Removed unused leftover code
> 
> Changes since v1 (can be found at [version1]):
> 
> 	- All GPC related code moved into a separate driver (see [gpc1])
> 	- Removed GPIO probe deferral logging
> 	- Fixed section mismatch warning
> 	- Minor reformatting of fsl,imx6q-pcie.txt(as per Rob
>           Herring's request)
> 
> [version7] https://lkml.org/lkml/2017/3/21/331
> [version6] https://lkml.org/lkml/2017/3/14/584
> [version5] https://lkml.org/lkml/2017/2/20/376
> [version4] https://lkml.org/lkml/2017/2/7/478
> [version3] https://lkml.org/lkml/2017/2/6/565
> [version2] https://lkml.org/lkml/2017/2/1/510
> [version1] https://lkml.org/lkml/2017/1/19/488
> [gpc1] https://lkml.org/lkml/2017/2/6/551
> [reset1] https://lkml.org/lkml/2017/2/6/554
> 
> Andrey Smirnov (4):
>   PCI: imx6: Add code to support i.MX7D
>   PCI: imx6: Allow probe deferal by reset GPIO
>   PCI: imx6: Do not wait for speed change on i.MX7
>   PCI: imx6: Do not switch speed if Gen2 is disabled
> 
>  .../devicetree/bindings/pci/fsl,imx6q-pcie.txt     |  13 +-
>  drivers/pci/dwc/pci-imx6.c                         | 198 +++++++++++++++------
>  include/linux/mfd/syscon/imx7-iomuxc-gpr.h         |   4 +
>  3 files changed, 160 insertions(+), 55 deletions(-)

Applied to pci/host-imx6 for v4.12, thanks!