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[media] v4l2: blackfin: convert ppi driver to a module 

Other drivers can make use of it.

Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Scott Jiang 2012-11-20 15:49:35 -03:00 committed by Mauro Carvalho Chehab
parent fe0e990b22
commit fab0e8fa43
3 changed files with 14 additions and 3 deletions
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6
drivers/media/platform/blackfin/Kconfig
View File

@ -2,9 +2,13 @@ config VIDEO_BLACKFIN_CAPTURE
tristate "Blackfin Video Capture Driver"
depends on VIDEO_V4L2 && BLACKFIN && I2C
select VIDEOBUF2_DMA_CONTIG
select VIDEO_BLACKFIN_PPI
help
V4L2 bridge driver for Blackfin video capture device.
Choose PPI or EPPI as its interface.
To compile this driver as a module, choose M here: the
module will be called bfin_video_capture.
module will be called bfin_capture.
config VIDEO_BLACKFIN_PPI
tristate

4
drivers/media/platform/blackfin/Makefile
View File

@ -1,2 +1,2 @@
bfin_video_capture-objs := bfin_capture.o ppi.o
obj-$(CONFIG_VIDEO_BLACKFIN_CAPTURE) += bfin_video_capture.o
obj-$(CONFIG_VIDEO_BLACKFIN_CAPTURE) += bfin_capture.o
obj-$(CONFIG_VIDEO_BLACKFIN_PPI) += ppi.o

7
drivers/media/platform/blackfin/ppi.c
View File

@ -17,6 +17,7 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <asm/bfin_ppi.h>
@ -263,9 +264,15 @@ struct ppi_if *ppi_create_instance(const struct ppi_info *info)
pr_info("ppi probe success\n");
return ppi;
}
EXPORT_SYMBOL(ppi_create_instance);
void ppi_delete_instance(struct ppi_if *ppi)
{
peripheral_free_list(ppi->info->pin_req);
kfree(ppi);
}
EXPORT_SYMBOL(ppi_delete_instance);
MODULE_DESCRIPTION("Analog Devices PPI driver");
MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>");
MODULE_LICENSE("GPL v2");