[PATCH v3 0/7] ARM: shmobile: shdma DT on sh73a0 and r8a7740
Simon Horman
horms at verge.net.au
Thu Jun 27 15:22:42 EST 2013
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+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
>
> 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 majordomo at vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
More information about the devicetree-discuss
mailing list