linux-kernel - [PATCH v4 0/2] spi: Add support for Realtek RTL838x/RTL839x SoC SPI

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Message-Id: <20210105232815.3218063-1-bert@biot.com>
Date:   Wed,  6 Jan 2021 00:28:13 +0100
From:   Bert Vermeulen <bert@...t.com>
To:     Mark Brown <broonie@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Birger Koblitz <mail@...ger-koblitz.de>,
        linux-spi@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Bert Vermeulen <bert@...t.com>
Subject: [PATCH v4 0/2] spi: Add support for Realtek RTL838x/RTL839x SoC SPI

v4:
- Added SoC series-specific compatible matches.

v3:
- Added cpu_relax() to busy loop.
- Dropped .remove callback from driver struct.
- Use (variations of) realtek-rtl as prefix.
- Dropped Kconfig entry, and use MACH_REALTEK_RTL setting to build the
  driver, since there's no point booting without the SPI-connected flash.

v2:
- Rewrote from spi-nor driver to regular spi driver, implementing only
  set_cs() and transfer_one(). (Thanks Chuanhong Guo!)


Bert Vermeulen (2):
  dt-bindings: spi: Realtek RTL838x/RTL839x SPI controller
  spi: realtek-rtl: Add support for Realtek RTL838x/RTL839x SoC SPI
    controllers

 .../bindings/spi/realtek,rtl-spi.yaml         |  38 ++++
 MAINTAINERS                                   |   6 +
 drivers/spi/Makefile                          |   1 +
 drivers/spi/spi-realtek-rtl.c                 | 206 ++++++++++++++++++
 4 files changed, 251 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/realtek,rtl-spi.yaml
 create mode 100644 drivers/spi/spi-realtek-rtl.c

-- 
2.25.1