linux-kernel - [PATCH v6 0/2] Microchip Polarfire FPGA manager

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Message-Id: <20220321090020.22530-1-i.bornyakov@metrotek.ru>
Date:   Mon, 21 Mar 2022 12:00:18 +0300
From:   Ivan Bornyakov <i.bornyakov@...rotek.ru>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Ivan Bornyakov <i.bornyakov@...rotek.ru>, mdf@...nel.org,
        hao.wu@...el.com, yilun.xu@...el.com, trix@...hat.com,
        conor.dooley@...rochip.com, robh+dt@...nel.org, system@...rotek.ru,
        linux-kernel@...r.kernel.org, linux-fpga@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: [PATCH v6 0/2] Microchip Polarfire FPGA manager

Add support to the FPGA manager for programming Microchip Polarfire
FPGAs over slave SPI interface with .dat formatted bitsream image.

Changelog:
  v1 -> v2: fix printk formating
  v2 -> v3:
   * replace "microsemi" with "microchip"
   * replace prefix "microsemi_fpga_" with "mpf_"
   * more sensible .compatible and .name strings
   * remove unused defines STATUS_SPI_VIOLATION and STATUS_SPI_ERROR
  v3 -> v4: fix unused variable warning
    Put 'mpf_of_ids' definition under conditional compilation, so it
    would not hang unused if CONFIG_OF is not enabled.
  v4 -> v5:
   * prefix defines with MPF_
   * mdelay() -> usleep_range()
   * formatting fixes
   * add DT bindings doc
   * rework fpga_manager_ops.write() to fpga_manager_ops.write_sg()
     We can't parse image header in write_init() because image header
     size is not known beforehand. Thus parsing need to be done in
     fpga_manager_ops.write() callback, but fpga_manager_ops.write()
     also need to be reenterable. On the other hand,
     fpga_manager_ops.write_sg() is called once. Thus, rework usage of
     write() callback to write_sg().
  v5 -> v6: fix patch applying
     I forgot to clean up unrelated local changes which lead to error on
     patch 0001-fpga-microchip-spi-add-Microchip-MPF-FPGA-manager.patch
     applying on vanilla kernel.

Ivan Bornyakov (2):
  fpga: microchip-spi: add Microchip MPF FPGA manager
  dt-bindings: fpga: add binding doc for microchip-spi fpga mgr

 .../fpga/microchip,mpf-spi-fpga-mgr.yaml      |  32 ++
 drivers/fpga/Kconfig                          |  10 +
 drivers/fpga/Makefile                         |   1 +
 drivers/fpga/microchip-spi.c                  | 448 ++++++++++++++++++
 4 files changed, 491 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/fpga/microchip,mpf-spi-fpga-mgr.yaml
 create mode 100644 drivers/fpga/microchip-spi.c

-- 
2.34.1