[PATCH 3/5] ARM: mxs: dynamically allocate dma device for mx23/28
Shawn Guo
shawn.guo at freescale.com
Tue Feb 8 19:22:12 EST 2011
On Mon, Feb 07, 2011 at 09:09:45AM +0100, Sascha Hauer wrote:
> On Sat, Feb 05, 2011 at 10:08:14AM +0800, Shawn Guo wrote:
> > Signed-off-by: Shawn Guo <shawn.guo at freescale.com>
> > ---
> > arch/arm/mach-mxs/clock-mx23.c | 3 +-
> > arch/arm/mach-mxs/clock-mx28.c | 4 +-
> > arch/arm/mach-mxs/devices-mx23.h | 6 +++
> > arch/arm/mach-mxs/devices-mx28.h | 6 +++
> > arch/arm/mach-mxs/devices/Kconfig | 3 +
> > arch/arm/mach-mxs/devices/Makefile | 1 +
> > arch/arm/mach-mxs/devices/platform-dma.c | 50 +++++++++++++++++++++++
> > arch/arm/mach-mxs/include/mach/devices-common.h | 7 +++
> > 8 files changed, 77 insertions(+), 3 deletions(-)
> > create mode 100644 arch/arm/mach-mxs/devices/platform-dma.c
> >
> > diff --git a/arch/arm/mach-mxs/devices-mx23.h b/arch/arm/mach-mxs/devices-mx23.h
> > index 1256788..d5595ce 100644
> > --- a/arch/arm/mach-mxs/devices-mx23.h
> > +++ b/arch/arm/mach-mxs/devices-mx23.h
> > @@ -14,3 +14,9 @@
> > extern const struct amba_device mx23_duart_device __initconst;
> > #define mx23_add_duart() \
> > mxs_add_duart(&mx23_duart_device)
> > +
> > +extern const struct mxs_dma_data mx23_dma_data[] __initconst;
> > +#define mx23_add_apbh_dma() \
> > + mxs_add_dma(&mx23_dma_data[0])
> > +#define mx23_add_apbx_dma() \
> > + mxs_add_dma(&mx23_dma_data[1])
> > diff --git a/arch/arm/mach-mxs/devices-mx28.h b/arch/arm/mach-mxs/devices-mx28.h
> > index 3b18304..e3a3bbc 100644
> > --- a/arch/arm/mach-mxs/devices-mx28.h
> > +++ b/arch/arm/mach-mxs/devices-mx28.h
> > @@ -23,6 +23,12 @@ extern const struct mxs_auart_data mx28_auart_data[] __initconst;
> > #define mx28_add_auart3() mx28_add_auart(3)
> > #define mx28_add_auart4() mx28_add_auart(4)
> >
> > +extern const struct mxs_dma_data mx28_dma_data[] __initconst;
> > +#define mx28_add_apbh_dma() \
> > + mxs_add_dma(&mx28_dma_data[0])
> > +#define mx28_add_apbx_dma() \
> > + mxs_add_dma(&mx28_dma_data[1])
> > +
>
> Given that the DMA device is fully internal to the SoC and always
> present, does it make sense to add it dynamically and to leave
> registration to the boards?
>
OK. Will make it in initcall. Correct me if this is not what you
expect.
Regards,
Shawn
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