Re: [PATCH v2 0/5] dmaengine: add ACPI DMA helpers and use them in dw_dmac

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On Mon, 2013-04-15 at 22:06 +0530, Vinod Koul wrote: 
> On Tue, Apr 09, 2013 at 02:05:42PM +0300, Andy Shevchenko wrote:
> > There is a patch series which introduces ACPI DMA helpers in similar way like
> > we have for DeviceTree.
> > 
> > In addition it applies this to the first user, namely dw_dmac driver.
> Applied w/o 3 & 5.2 they failed, can you pls rebase and resend
> 

Actually those two (at least 5/5) can't be applied on top of slave-dma.
The patches requires slave-dma and linux-pm together. I heard it's
usually achieved by creating a specific branch in one subsystem
(linux-pm in our case) for another.

Rafael, what could we do here?

> --
> ~Vinod
> > 
> > Since v1:
> >  - address one Vinod's comment
> >  - replace 5/6 & 6/6 by 5/5 from Rafael
> >  - tested on Intel Lynxpoint system
> > 
> > Andy Shevchenko (4):
> >   dma: acpi-dma: introduce ACPI DMA helpers
> >   dmaengine: call acpi_dma_request_slave_channel as well
> >   dma: acpi-dma: parse CSRT to extract additional resources
> >   dw_dmac: add ACPI support
> > 
> > Rafael J. Wysocki (1):
> >   ACPI / LPSS: add support of shared clock
> > 
> >  Documentation/acpi/enumeration.txt     |  77 ++++++
> >  drivers/acpi/Makefile                  |   1 -
> >  drivers/acpi/acpi_lpss.c               |  26 +-
> >  drivers/acpi/csrt.c                    | 159 ------------
> >  drivers/acpi/internal.h                |   1 -
> >  drivers/acpi/scan.c                    |   1 -
> >  drivers/clk/x86/clk-lpt.c              |  15 +-
> >  drivers/dma/Kconfig                    |   4 +
> >  drivers/dma/Makefile                   |   1 +
> >  drivers/dma/acpi-dma.c                 | 445 +++++++++++++++++++++++++++++++++
> >  drivers/dma/dmaengine.c                |   6 +
> >  drivers/dma/dw_dmac.c                  |  68 +++--
> >  drivers/dma/dw_dmac_regs.h             |   1 -
> >  include/linux/acpi_dma.h               | 120 +++++++++
> >  include/linux/platform_data/clk-lpss.h |   5 +
> >  15 files changed, 741 insertions(+), 189 deletions(-)
> >  delete mode 100644 drivers/acpi/csrt.c
> >  create mode 100644 drivers/dma/acpi-dma.c
> >  create mode 100644 include/linux/acpi_dma.h
> > 
> > -- 
> > 1.8.2.rc0.22.gb3600c3
> > 

-- 
Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Intel Finland Oy
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