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SubjectRe: [PATCH v6 3/4] media: coda: use genalloc API
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Am Freitag, den 16.11.2012, 10:08 -0500 schrieb Paul Gortmaker:
> On 12-11-16 05:30 AM, Philipp Zabel wrote:
> > This patch depends on "genalloc: add a global pool list,
> > allow to find pools by phys address", which provides the
> > of_get_named_gen_pool function.
> >
> > Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
> > ---
> > drivers/media/platform/Kconfig | 3 +--
> > drivers/media/platform/coda.c | 47 ++++++++++++++++++++++++++++------------
> > 2 files changed, 34 insertions(+), 16 deletions(-)
> >
> > diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
> > index 181c768..09d45c6 100644
> > --- a/drivers/media/platform/Kconfig
> > +++ b/drivers/media/platform/Kconfig
> > @@ -130,10 +130,9 @@ if V4L_MEM2MEM_DRIVERS
> >
> > config VIDEO_CODA
> > tristate "Chips&Media Coda multi-standard codec IP"
> > - depends on VIDEO_DEV && VIDEO_V4L2 && ARCH_MXC
> > + depends on VIDEO_DEV && VIDEO_V4L2
>
> What was the logic for reducing the dependency scope here?
> Your commit log doesn't mention that at all, and when I see
> things like that, I predict allyesconfig build failures,
> unless there is a similar dependency elsewhere that isn't
> visible in just the context of this patch alone.
>
> P.

iram_alloc and iram_free are i.MX specific wrappers around
gen_pool_alloc and gen_pool_free, located in <mach/iram.h>.
Those were responsible for the dependency in the first place.

> --
>
> > select VIDEOBUF2_DMA_CONTIG
> > select V4L2_MEM2MEM_DEV
> > - select IRAM_ALLOC if SOC_IMX53
> > ---help---
> > Coda is a range of video codec IPs that supports
> > H.264, MPEG-4, and other video formats.
> > diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
> > index cd04ae2..f17b659 100644
> > --- a/drivers/media/platform/coda.c
> > +++ b/drivers/media/platform/coda.c
> > @@ -14,6 +14,7 @@
> > #include <linux/clk.h>
> > #include <linux/delay.h>
> > #include <linux/firmware.h>
> > +#include <linux/genalloc.h>
> > #include <linux/interrupt.h>
> > #include <linux/io.h>
> > #include <linux/irq.h>
> > @@ -24,7 +25,6 @@
> > #include <linux/videodev2.h>
> > #include <linux/of.h>
> >
> > -#include <mach/iram.h>
[...]

After dropping the #include <mach/iram.h>, there is no need
to depend on ARCH_MXC anymore.

regards
Philipp



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