linux-kernel - [PATCH v3 0/6] spi: Add support for DMA transfers in sun6i SPI driver

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Date:   Tue,  3 Apr 2018 18:44:43 +0300
From:   Sergey Suloev <ssuloev@...altech.com>
To:     Mark Brown <broonie@...nel.org>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Chen-Yu Tsai <wens@...e.org>
Cc:     linux-spi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Sergey Suloev <ssuloev@...altech.com>
Subject: [PATCH v3 0/6] spi: Add support for DMA transfers in sun6i SPI driver

The following patchset provides corrections for PIO-mode
and support for DMA transfers in sun6i SPI driver.

Changes in v2:
1) Fixed issue with misplacing a piece of code that requires access
to the transfer structure into sun6i_spi_prepare_message() function
where the transfer structure is not available.

2) Fixed issue with passing an invalid argument into devm_request_irq()
function.

Changes in v3:
1) Restored processing of 3/4 FIFO full interrupt.

2) Debug log enhancements.

Sergey Suloev (6):
  spi: sun6i: coding style/readability improvements
  spi: sun6i: handle chip select polarity flag
  spi: sun6i: restrict transfer length in PIO-mode
  spi: sun6i: use completion provided by SPI core
  spi: sun6i: introduce register set/unset helpers
  spi: sun6i: add DMA transfers support

 drivers/spi/spi-sun6i.c | 526 ++++++++++++++++++++++++++++++++++++------------
 1 file changed, 402 insertions(+), 124 deletions(-)

-- 
2.16.2