linux-kernel - [PATCH v4 0/2] spi: atmel: add support to FIFOs and the internal chip-select

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Date:	Tue, 16 Jun 2015 12:09:29 +0200
From:	Cyrille Pitchen <cyrille.pitchen@...el.com>
To:	<nicolas.ferre@...el.com>, <broonie@...nel.org>,
	<linux-spi@...r.kernel.org>
CC:	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<devicetree@...r.kernel.org>, <robh+dt@...nel.org>,
	<pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	Cyrille Pitchen <cyrille.pitchen@...el.com>
Subject: [PATCH v4 0/2] spi: atmel: add support to FIFOs and the internal chip-select

ChangeLog

v4:
- remove the chip-select patch from the series as it has already been applied
- reword the commit message of the DT bindings patch to better explain why we
  use a new DT property, "atmel,fifo-size" instead of relying on the VERSION
  register or the "compatible" string.
- reword the commit message of the actual FIFO patch to better explain what
  are the MULTIPLE and SINGLE data modes and how to use them properly.
- add Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>

v3:
- replace "Alternative Command Mode" by "Chip Select Active After Transfer" in
  the DT bindings documentation. The "Alternative Command Mode" is a feature of
  the I2C controller.
- rename somes "size" variables to "num_data" to ease the distinction between
  the number of bytes and the number of data to transfer.

v2:
- read the Status Register to clear its RX FIFO Threshold Flag (RXFTHF) before
  writing into the IER to enable the RXFTHF interrupt.
- remove the reset of the FIFO Mode Register (FMR) at the end of transfers
  because setting the RX FIFO Threshold to 0 also sets the RXFTHF bit in SR.
- add a 3rd patch in the series to update the documentation of DT bindings.

v1:
This series of patches add support to features introduced by the Atmel sama5d2x
SoC

Cyrille Pitchen (2):
  spi: atmel: update DT bindings documentation
  spi: atmel: add support to FIFOs

 .../devicetree/bindings/spi/spi_atmel.txt          |   8 +-
 drivers/spi/spi-atmel.c                            | 255 ++++++++++++++++++++-
 2 files changed, 252 insertions(+), 11 deletions(-)

-- 
1.8.2.2

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