Hello,
On Wednesday, August 24, 2011 5:41 PM Aguirre, Sergio wrote:
> On Fri, Aug 19, 2011 at 04:27:44PM +0200, Marek Szyprowski wrote:
> > This patch is an example how device private CMA area can be activated.
> > It creates one CMA region and assigns it to the first s5p-fimc device on
> > Samsung Goni S5PC110 board.
> >
> > Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> > Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> > ---
> > arch/arm/mach-s5pv210/mach-goni.c | 4 ++++
> > 1 files changed, 4 insertions(+), 0 deletions(-)
> > diff --git a/arch/arm/mach-s5pv210/mach-goni.c b/arch/arm/mach-s5pv210/mach-
> goni.c
> > index 14578f5..f766c45 100644
> > --- a/arch/arm/mach-s5pv210/mach-goni.c
> > +++ b/arch/arm/mach-s5pv210/mach-goni.c
> > @@ -26,6 +26,7 @@
> > #include <linux/input.h>
> > #include <linux/gpio.h>
> > #include <linux/interrupt.h>
> > +#include <linux/dma-contiguous.h>
> >
> > #include <asm/mach/arch.h>
> > #include <asm/mach/map.h>
> > @@ -857,6 +858,9 @@ static void __init goni_map_io(void)
> > static void __init goni_reserve(void)
> > {
> > s5p_mfc_reserve_mem(0x43000000, 8 << 20, 0x51000000, 8 << 20);
> > +
> > + /* Create private 16MiB contiguous memory area for s5p-fimc.0 device */
> > + dma_declare_contiguous(&s5p_device_fimc0.dev, 16*SZ_1M, 0);
>
> This is broken, since according to patch #0006, dma_declare_contiguous
requires
> a 4th param (limit) which you're not providing here.
You are definitely right, there should be one more parameter. This patch was
just
cherry-picked from older version just before posting to mailing lists. I'm
really
sorry for this trivial bug.
Best regards
--
Marek Szyprowski
Samsung Poland R&D Center
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