linux-kernel - [PATCH v2 0/3] Add support for Microchip QSPI controller

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Date:   Tue, 2 Aug 2022 12:35:15 +0530
From:   Naga Sureshkumar Relli <nagasuresh.relli@...rochip.com>
To:     <broonie@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor.dooley@...rochip.com>
CC:     <linux-spi@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Naga Sureshkumar Relli <nagasuresh.relli@...rochip.com>
Subject: [PATCH v2 0/3] Add support for Microchip QSPI controller

This patch enables the Microchip's FPGA QSPI and Polarfire SoC QSPI
controller support.

Tested spi-nand (W25N01GV) and spi-nor (MT25QL256A) on Microchip's
ICICLE kit. tested using both FPGA QSPI and Polarfie SoC QSPI.

changes in v2
------------
1. Replaced spi_alloc_master() with devm_spi_alloc_master()
2. Used dev_err_probe() when devm_spi_alloc_master() fails.
3. Added shared IRQ flag in the interrupt registration.
4. Updated the dt_bindings so that there is a differentiation
   between FPGA QSPI IP core and hard QSPI IP core.
5. Updated the MAINTAINERS file.

Naga Sureshkumar Relli (3):
  spi: dt-binding: add Microchip CoreQSPI compatible
  spi: microchip-core-qspi: Add support for microchip fpga qspi
    controllers
  MAINTAINERS: add qspi to Polarfire SoC entry

 .../bindings/spi/microchip,mpfs-spi.yaml      |  12 +-
 MAINTAINERS                                   |   1 +
 drivers/spi/Kconfig                           |   9 +
 drivers/spi/Makefile                          |   1 +
 drivers/spi/spi-microchip-core-qspi.c         | 609 ++++++++++++++++++
 5 files changed, 629 insertions(+), 3 deletions(-)
 create mode 100644 drivers/spi/spi-microchip-core-qspi.c

-- 
2.25.1