Re: [PATCH v5] mfd: intel-m10-bmc: add Intel MAX 10 BMC chip support for Intel FPGA PAC

[Lee Jones <lee.jones@linaro.org>]

On Mon, 07 Sep 2020, Xu Yilun wrote:

> This patch implements the basic functions of the BMC chip for some Intel
> FPGA PCIe Acceleration Cards (PAC). The BMC is implemented using the
> Intel MAX 10 CPLD.
> 
> This BMC chip is connected to the FPGA by a SPI bus. To provide direct
> register access from the FPGA, the "SPI slave to Avalon Master Bridge"
> (spi-avmm) IP is integrated in the chip. It converts encoded streams of
> bytes from the host to the internal register read/write on the Avalon
> bus. So This driver uses the regmap-spi-avmm for register accessing.
> 
> Signed-off-by: Xu Yilun <yilun.xu@intel.com>
> Signed-off-by: Wu Hao <hao.wu@intel.com>
> Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
> Signed-off-by: Russ Weight <russell.h.weight@intel.com>
> Reviewed-by: Tom Rix <trix@redhat.com>
> ---
> v2: Split out the regmap-spi-avmm part.
>     Rename the file intel-m10-bmc-main.c to intel-m10-bmc.c, cause
>      there is only one source file left for this module now.
> v3: Add the sub devices in mfd_cell.
>     Some minor fixes.
> v4: No change.
> v5: Changes the names of mfd_cell.
>     Use ATTRIBUTE_GROUPS() to simplify the code.
>     Use the generic 'ddata' for the instance of struct intel_m10bmc.
>     More comments to clarify the function check_m10bmc_version().
>     Some minor fixes.
> ---
>  .../ABI/testing/sysfs-driver-intel-m10-bmc         |  15 ++
>  drivers/mfd/Kconfig                                |  13 ++
>  drivers/mfd/Makefile                               |   2 +
>  drivers/mfd/intel-m10-bmc.c                        | 162 +++++++++++++++++++++
>  include/linux/mfd/intel-m10-bmc.h                  |  56 +++++++
>  5 files changed, 248 insertions(+)
>  create mode 100644 Documentation/ABI/testing/sysfs-driver-intel-m10-bmc
>  create mode 100644 drivers/mfd/intel-m10-bmc.c
>  create mode 100644 include/linux/mfd/intel-m10-bmc.h

Please see my replies for v4.

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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