[PATCH v3 0/7] ARM: shmobile: shdma DT on sh73a0 and r8a7740

[Guennadi Liakhovetski]

Hi Simon

On Thu, 27 Jun 2013, Simon Horman wrote:

> On Wed, Jun 26, 2013 at 04:40:49PM +0200, Guennadi Liakhovetski wrote:
> > Recently shdma acquired DT support with a possibility to place multiple 
> > compatible DMAC instances under a common DMA multiplexer DT node. This is 
> > used to provide DMA support on r8a7740 / armadillo800eva. However there 
> > are also SoCs with a single DMAC instance. We could still put it under a 
> > (dummy) multiplexer DT node, or we can add support for such configurations 
> > to the shdma driver and simplify DTs on such SoCs. Patch 1 in this 
> > series adds support for such top-level DMAC DT nodes to shdma, which is 
> > then used on sh73a0. This is why patches 1-3 are marked "RFC," if it is 
> > preferred to not add this complexity to the driver and use a dummy DMA 
> > multiplexer instead, patch 1 shall be dropped and patches 2 and 3 would 
> > have to be reworked.
> 
> Hi Guennadi, can patches 4+ be reviewed and applied independently of
> the RFC patches 1-3 ?

Yes, they can.

Thanks
Guennadi

> > Cc: Guennadi Liakhovetski <g.liakhovetski+renesas at gmail.com>
> > Cc: Vinod Koul <vinod.koul at intel.com>
> > 
> > Guennadi Liakhovetski (7):
> >   DMA: shdma: also support single top-level DMAC DT nodes
> >   ARM: shmobile: sh73a0: add support for the DMA0 controller in DT
> >   ARM: shmobile: kzm9g-reference: add DMA channels to the MMCIF DT
> >   ARM: shmobile: r8a7740: add MMCIF DMA definitions
> >   ARM: shmobile: r8a7740: add DT nodes for three DMAC instance
> >   ARM: shmobile: add SDHI and MMCIF interfaces to
> >     armadillo800eva-reference
> >   ARM: shmobile: armadillo800eva-reference: add DMA support for MMCIF
> >     and SDHI
> > 
> >  .../boot/dts/r8a7740-armadillo800eva-reference.dts |   30 ++++++-
> >  arch/arm/boot/dts/r8a7740.dtsi                     |   95 ++++++++++++++++++++
> >  arch/arm/boot/dts/sh73a0-kzm9g-reference.dts       |    3 +
> >  arch/arm/boot/dts/sh73a0.dtsi                      |   36 ++++++++
> >  .../board-armadillo800eva-reference.c              |   36 +++++++-
> >  arch/arm/mach-shmobile/include/mach/r8a7740.h      |    2 +
> >  arch/arm/mach-shmobile/setup-r8a7740.c             |   22 +++++
> >  arch/arm/mach-shmobile/setup-sh73a0.c              |    4 +
> >  drivers/dma/sh/shdma-of.c                          |    5 +-
> >  drivers/dma/sh/shdma.c                             |   16 ++++
> >  include/linux/sh_dma.h                             |    5 +
> >  11 files changed, 250 insertions(+), 4 deletions(-)
> > 
> > -- 
> > 1.7.2.5

---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/