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+rene...@gmail.com> > > Cc: Vinod Koul <vinod.k...@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/ _______________________________________________ devicetree-discuss mailing list devicetree-discuss@lists.ozlabs.org https://lists.ozlabs.org/listinfo/devicetree-discuss