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 ? > 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 > > Thanks > Guennadi > --- > Guennadi Liakhovetski, Ph.D. > Freelance Open-Source Software Developer > http://www.open-technology.de/ > -- > To unsubscribe from this list: send the line "unsubscribe linux-sh" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > _______________________________________________ devicetree-discuss mailing list devicetree-discuss@lists.ozlabs.org https://lists.ozlabs.org/listinfo/devicetree-discuss
