linux-kernel - [PATCH v5 0/2] spi: Add Renesas R-Car Gen3 RPC-IF SPI driver

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Date:   Tue,  8 Jan 2019 12:16:58 +0800
From:   Mason Yang <masonccyang@...c.com.tw>
To:     broonie@...nel.org, marek.vasut@...il.com,
        linux-kernel@...r.kernel.org, linux-spi@...r.kernel.org,
        boris.brezillon@...tlin.com, linux-renesas-soc@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        sergei.shtylyov@...entembedded.com
Cc:     juliensu@...c.com.tw, Simon Horman <horms@...ge.net.au>,
        zhengxunli@...c.com.tw, Mason Yang <masonccyang@...c.com.tw>
Subject: [PATCH v5 0/2] spi: Add Renesas R-Car Gen3 RPC-IF SPI driver

Hi Mark,

This Renesas R-Car Gen3 RPC-IF SPI driver is based on Boris's new
spi-mem direct mapping read/write mode [1][2].

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

[1] https://patchwork.kernel.org/patch/10670753
[2] https://patchwork.kernel.org/patch/10670747

Mason Yang (2):
  spi: Add Renesas R-Car Gen3 RPC-IF SPI controller driver
  dt-bindings: spi: Document Renesas R-Car 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                      | 787 +++++++++++++++++++++
 4 files changed, 831 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/spi-renesas-rpc.txt
 create mode 100644 drivers/spi/spi-renesas-rpc.c

-- 
1.9.1