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

Bert Vermeulen
2021-01-05T23:29:53Z

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

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2.25.1