[v6,0/2] spi: Add Renesas R-Car Gen3 RPC-IF SPI driver

Message

Mason Yang Jan. 18, 2019, 5:54 a.m. UTC

Hi Mark,

v6 patch is accroding to Geert, Marek and Sergei's comments:
1) spi_controller for new code. 
2) "renesas,rcar-gen3-rpc" instead of "renesas,r8a77995-rpc".
3) patch external address read mode w/o u64 readq().
4) patch dts for write buffer & drop "renesas,rpc-mode".
5) coding style and so on.

v5 patch is accroding to Sergei's comments:
1) Read 6 bytes ID from Sergei's patch.
2) regmap_update_bits()
3) C++ style comment

v4 patch is according to Sergei's comments including:
1) Drop soc_device_match()
2) Drop unused RPC registers
3) Use ilog2() instead of fls()
4) Patch read 6 bytes ID w/ one command.
5) Coding style and so on.

v3 patch is according to Marek and Geert's comments including:
1) soc_device_mach() to set up RPC_PHYCNT_STRTIM.
2) get_unaligned()
3) rpc-mode for rpi-spi-flash or rpc-hyperflash.
4) coding style and so on.

v2 patch including:
1) remove RPC clock enable/dis-able control,
2) patch run time PM,
3) add RPC module software reset,
4) add regmap,
5) other coding style and so on.

thanks for your review.

best regards,
Mason

Mason Yang (2):
  spi: Add Renesas R-Car Gen3 RPC-IF SPI controller driver
  dt-bindings: spi: Document Renesas R-Car Gen3 RPC-IF controller
    bindings

 .../devicetree/bindings/spi/spi-renesas-rpc.txt    |  37 +
 drivers/spi/Kconfig                                |   6 +
 drivers/spi/Makefile                               |   1 +
 drivers/spi/spi-renesas-rpc.c                      | 800 +++++++++++++++++++++
 4 files changed, 844 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/spi-renesas-rpc.txt
 create mode 100644 drivers/spi/spi-renesas-rpc.c