linux-kernel - [PATCH v3 0/3] xtensa xtfpga SPI controller driver

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Message-Id: <1394646926-30496-1-git-send-email-jcmvbkbc@gmail.com>
Date:	Wed, 12 Mar 2014 21:55:23 +0400
From:	Max Filippov <jcmvbkbc@...il.com>
To:	linux-xtensa@...ux-xtensa.org, linux-spi@...r.kernel.org,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Cc:	Chris Zankel <chris@...kel.net>, Marc Gauthier <marc@...ence.com>,
	Mark Brown <broonie@...nel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Grant Likely <grant.likely@...aro.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mark Rutland <mark.rutland@....com>,
	Max Filippov <jcmvbkbc@...il.com>
Subject: [PATCH v3 0/3] xtensa xtfpga SPI controller driver

Hello,

this series adds driver for SPI controller used on xtfpga xtensa platform,
device tree binding documentation and an entry to MAINTAINERS.

Changes v2 -> v3:
- support all transfer widths in the range 1...16 bit;
- don't swap bytes of 16 bit transfers.

Changes v1 -> v2:
- support 8 bit transfers;
- busy-wait for maximum 100 usec (instead of 100 msec) polling BUSY register;
- use chipselect callback to check transfer size.

Max Filippov (3):
  spi: add xtfpga SPI controller driver
  spi/xtensa-xtfpga: add DT binding documentation
  MAINTAINERS: add xtfpga platform section

 .../devicetree/bindings/spi/spi-xtensa-xtfpga.txt  |   9 ++
 MAINTAINERS                                        |   6 +
 drivers/spi/Kconfig                                |  13 ++
 drivers/spi/Makefile                               |   1 +
 drivers/spi/spi-xtensa-xtfpga.c                    | 170 +++++++++++++++++++++
 5 files changed, 199 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/spi-xtensa-xtfpga.txt
 create mode 100644 drivers/spi/spi-xtensa-xtfpga.c

-- 
1.8.1.4

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