linux-kernel - [PATCH v4 0/2] i2c: add DMA support for freescale i2c driver

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Date:	Fri, 4 Apr 2014 10:41:10 +0800
From:	Yuan Yao <yao.yuan@...escale.com>
To:	<wsa@...-dreams.de>, <marex@...x.de>
CC:	<mark.rutland@....com>, <shawn.guo@...aro.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-i2c@...r.kernel.org>
Subject: [PATCH v4 0/2] i2c: add DMA support for freescale i2c driver 


Changed in v4:
- cancelled "i2c_imx->use_dma".
- changed "Dma" to "DMA".
- add timeout handling  for DMA transfer complete.

Changed in v3:
- fix a bug when request the DMA faild.
- some minor fixes for coding style.
- other minor fixes.

Changed in v2:
- remove has_dma_support property
- unify i2c_imx_dma_rx and i2c_imx_dma_tx
- unify i2c_imx_dma_read and i2c_imx_pio_read
- unify i2c_imx_dma_write and i2c_imx_pio_write

Added in v1:
- Enable DMA if it's support DMA and transfer size bigger than the threshold.
- Add device tree bindings for i2c eDMA support.
- Add eDMA support for i2c driver.

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