linux-kernel - Re: [PATCH v10 0/6] add DFL bus support to MODULE_DEVICE

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Date:   Thu, 15 Oct 2020 09:28:12 -0700
From:   Moritz Fischer <mdf@...nel.org>
To:     Xu Yilun <yilun.xu@...el.com>
Cc:     mdf@...nel.org, krzk@...nel.org, linux-fpga@...r.kernel.org,
        linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org,
        trix@...hat.com, lgoncalv@...hat.com, hao.wu@...el.com
Subject: Re: [PATCH v10 0/6] add DFL bus support to MODULE_DEVICE_TABLE()

Hi Xu,

On Thu, Oct 15, 2020 at 03:16:27PM +0800, Xu Yilun wrote:
> Patch #1 is a fix of the fields in struct dfl_device & dfl_device_id.
> 
> Patch #2, 3, 4 add dfl bus support to MODULE_DEVICE_TABLE(), they also
> move the necessary definitions in head file to public folders so that
> scatter dfl drivers could use them.
> 
> Patch #5 is the dfl driver for N3000 Nios private feature, this is the
> first use case of dfl bus.
> 
> Patch #6 is the dfl driver for DFL EMIF private feature.
> 
> 
> Main changes from v1:
> - A new patch (Patch #3) to fix the description.
> - Rename the dfl-bus.h to dfl.h
> - Updated the MAINTAINERS under FPGA DFL DRIVERS.
> - Improve comments and minor fixes.
> 
> Main changes from v2:
> - Change the bus name from "dfl" to "fpga-dfl", also rename related
>   variables, functions ...
> - Changes the data type of fpga_dfl_device_id.type from u8 to u16
> - Explicitly defines the values of enum fpga_dfl_id_type
> - Delete the comments for the valid bits of type & feature_id
> - changes MODALIAS format for fpga dfl devices
> 
> Main changes from v3:
> - Change the bus name back to "dfl".
> - Add 2 patches (#5, 6) for dfl drivers.
> - Delete the retimer FEC mode configuration via module_parameter for
>   Patch #5
> - Merge the patch "Make m10_n3000_info static" (https://lore.kernel.org/linux-fpga/52d8411e-13d8-1e91-756d-131802f5f445@huawei.com/T/#t)
>   into Patch #5
> - Add static prefix for emif attributes macro for Patch #6
> 
> Main changes from v9:
> - Add the description for struct dfl_device_id in mod_devicetable.h
> - Move the dfl.h from include/linux/fpga to include/linux
> - some code refactor and minor fixes for dfl-n3000-nios
> 
> Xu Yilun (6):
>   fpga: dfl: fix the definitions of type & feature_id for dfl devices
>   fpga: dfl: move dfl_device_id to mod_devicetable.h
>   fpga: dfl: add dfl bus support to MODULE_DEVICE_TABLE()
>   fpga: dfl: move dfl bus related APIs to include/linux/dfl.h

I'll put those on a branch (merged into for-next) so I can provide a tag
to Krzysztof once Greg pulled them in.
>   fpga: dfl: add support for N3000 Nios private feature

>   memory: dfl-emif: add the DFL EMIF private feature driver
Krzysztof will pick that one up through his tree then.
> 
>  .../ABI/testing/sysfs-bus-dfl-devices-emif         |  25 +
>  .../ABI/testing/sysfs-bus-dfl-devices-n3000-nios   |  47 ++
>  MAINTAINERS                                        |   3 +-
>  drivers/fpga/Kconfig                               |  11 +
>  drivers/fpga/Makefile                              |   2 +
>  drivers/fpga/dfl-n3000-nios.c                      | 588 +++++++++++++++++++++
>  drivers/fpga/dfl.c                                 |   4 +-
>  drivers/fpga/dfl.h                                 |  85 +--
>  drivers/memory/Kconfig                             |   9 +
>  drivers/memory/Makefile                            |   2 +
>  drivers/memory/dfl-emif.c                          | 207 ++++++++
>  include/linux/dfl.h                                |  86 +++
>  include/linux/mod_devicetable.h                    |  24 +
>  scripts/mod/devicetable-offsets.c                  |   4 +
>  scripts/mod/file2alias.c                           |  13 +
>  15 files changed, 1023 insertions(+), 87 deletions(-)
>  create mode 100644 Documentation/ABI/testing/sysfs-bus-dfl-devices-emif
>  create mode 100644 Documentation/ABI/testing/sysfs-bus-dfl-devices-n3000-nios
>  create mode 100644 drivers/fpga/dfl-n3000-nios.c
>  create mode 100644 drivers/memory/dfl-emif.c
>  create mode 100644 include/linux/dfl.h
> 
> -- 
> 2.7.4
> 
Thanks,
Moritz