At Wed, 04 Jun 2014 23:59:55 +0200,
Alexander Graf wrote:
>
>
> On 04.06.14 09:28, Matwey V. Kornilov wrote:
> > On 19.05.2014 14:02, Alexander Graf wrote:
> >>> note: expected 'uint32_t *' but argument is of type 'dma_addr_t *'
> >
> > I've fixed that one, but can not figure out what is wrong now:
> >
> > https://build.opensuse.org/package/live_build_log/home:matwey:pcm051:13.2/kernel-default/standard/armv7l
> >
> >
>
> If I had to guess I'd say someone forgot to put a few EXPORT_SYMBOLs
> into the code and never tested whether compiling his v4l / video driver
> actually works when it's compiled as a module.
The problem is CONFIG_VIDEO_OMAP4=y while the whole V4L stuff is built
as modules. You have to build V4L into kernel, too.
That said, it's a Kconfig dependency issue.
Looking at the code, though, omap4-iss driver itself is written to be
built also as a module. But its Kconfig is bool, so the problem
happens. Maybe a patch like below works?
Takashi
---
diff --git a/drivers/staging/media/omap4iss/Kconfig
b/drivers/staging/media/omap4iss/Kconfig
index 78b0fba7047e..0c3e3c1acd4f 100644
--- a/drivers/staging/media/omap4iss/Kconfig
+++ b/drivers/staging/media/omap4iss/Kconfig
@@ -1,5 +1,5 @@
config VIDEO_OMAP4
- bool "OMAP 4 Camera support"
+ tristate "OMAP 4 Camera support"
depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && I2C && ARCH_OMAP4
select VIDEOBUF2_DMA_CONTIG
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