[PATCH v4 0/4] Add dual-fifo mode support of i.MX ssi

[Nicolin Chen]

Changelog
v4:
 * PATCH-3: Drop useless register configuration.
 *
 * Nothing changes for the other three patches
v3:
 * PATCH-1: Add comments to indicate the end of v1 and v2 array.
 * PATCH-3: Use better way to keep watermark as even number.
 *
 * Nothing changes for PATCH-2 and PATCH-4
v2:
 * Instead of adding rogue scripts to current SDMA driver based on firmware
 * V1, we define the new SDMA firmware as version 2 and bisect the PATCH-1
 * to two patches: The first is to add version check code to the SDMA driver;
 * And the second is to add SSI dual FIFO DMATYPE.
 *
 * Nothing changes for the last two patches.
v1:
 * SSI can reduce hardware overrun/underrun possibility when using dual
 * fifo mode. To support this mode, we need to first update sdma sciprt
 * list, and then enable dual fifo BIT in SSI driver, and last update DT
 * bindings of i.MX series.
 *
 * ! This series of patches has a direct dependency between them. When
 * ! applying them, we need to apply to one single branch. Otherwise,
 * ! it would break currect branches.

Nicolin Chen (4):
  dma: imx-sdma: Add sdma firmware version 2 support
  dma: imx-sdma: Add new dma type for ssi dual fifo script
  ASoC: fsl_ssi: Add dual fifo mode support
  ARM: dts: imx: use dual-fifo sdma script for ssi

 .../devicetree/bindings/dma/fsl-imx-sdma.txt          |  1 +
 arch/arm/boot/dts/imx51.dtsi                          |  4 ++--
 arch/arm/boot/dts/imx53.dtsi                          |  4 ++--
 arch/arm/boot/dts/imx6qdl.dtsi                        | 12 ++++++------
 arch/arm/boot/dts/imx6sl.dtsi                         | 12 ++++++------
 drivers/dma/imx-sdma.c                                | 19 ++++++++++++++++++-
 include/linux/platform_data/dma-imx-sdma.h            |  5 +++++
 include/linux/platform_data/dma-imx.h                 |  1 +
 sound/soc/fsl/fsl_ssi.c                               | 18 +++++++++++++++++-
 9 files changed, 58 insertions(+), 18 deletions(-)

-- 
1.8.4


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