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From:   Radu Pirea <radu_nicolae.pirea@upb.ro>
To:     richard.genoud@gmail.com, lee.jones@linaro.org, robh+dt@kernel.org,
        mark.rutland@arm.com, nicolas.ferre@microchip.com,
        alexandre.belloni@bootlin.com, ludovic.desroches@microchip.co,
        broonie@kernel.org
Cc:     linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        Radu Pirea <radu_nicolae.pirea@upb.ro>
Subject: [PATCH 0/3] Add PM and DMA support for AT91 USART as SPI
Date:   Wed, 21 Nov 2018 13:27:29 +0200
Message-Id: <20181121112732.15690-1-radu_nicolae.pirea@upb.ro>
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Sender: linux-kernel-owner@vger.kernel.org
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Hi,

This patch series improves the SPI driver for AT91 USART IP and
adds support for DMA transfers, updates the bindings of driver
and PM callback functions.

I decided to use DMA only for transfers long than 16 bytes. DMA
setup introduces a little overhead and is better to use PIO for
short transfers.

Radu Pirea (3):
  spi: at91-usart: add power management support
  dt-bindings: mfd: atmel-usart: add DMA bindings for SPI mode
  spi: at91-usart: add DMA support

 .../devicetree/bindings/mfd/atmel-usart.txt   |  15 +-
 drivers/spi/spi-at91-usart.c                  | 284 +++++++++++++++++-
 2 files changed, 292 insertions(+), 7 deletions(-)

--=20
2.19.1