| Message ID | 20210312125657.25442-5-sakari.ailus@linux.intel.com |
|---|---|
| State | New |
| Headers | show |
| Series | Knead V4L2 async and fwnode frameworks a little | expand |
On Fri, 2021-03-12 at 14:56 +0200, Sakari Ailus wrote: > The V4L2 async framework is generally used with the V4L2 fwnode, which > also depends on the former. There is only one exception, the CAFE_CCIC > driver, which uses V4L2 async but does not need V4L2 fwnode. > > At the same time there is a vast number of systems that need videodev > module, but have no use for v4l2-async that's now part of videodev. > > In order to improve, build v4l2-async and v4l2-fwnode as a single module > called v4l2-async (the v4l2-async.c file is renamed as v4l2-async-core.c). > Also the menu item V4L2_FWNODE is renamed as V4L2_ASYNC. > Seems this is not what this patch is doing: the symbol is not renamed, and now we have two modules v4l2-fwnode.ko and v4l2-async.ko, unless I'm confused. I personally was more fond of having just one v4l2-async.ko module, but I'm not sure if you found any obstacles. > This also moves the initialisation of the debufs entries for async subdevs > to loading of the v4l2-async module. The directory is named as > "v4l2-async". > > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> > --- > drivers/media/i2c/Kconfig | 8 ++++++++ > drivers/media/v4l2-core/Kconfig | 4 ++++ > drivers/media/v4l2-core/Makefile | 11 +++++++++-- > drivers/media/v4l2-core/v4l2-async.c | 23 +++++++++++++++++++++-- > drivers/media/v4l2-core/v4l2-dev.c | 5 ----- > 5 files changed, 42 insertions(+), 9 deletions(-) > [..] > diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile > index e4cd589b99a5..eb5ebb5461fd 100644 > --- a/drivers/media/v4l2-core/Makefile > +++ b/drivers/media/v4l2-core/Makefile > @@ -7,15 +7,22 @@ tuner-objs := tuner-core.o > > videodev-objs := v4l2-dev.o v4l2-ioctl.o v4l2-device.o v4l2-fh.o \ > v4l2-event.o v4l2-ctrls.o v4l2-subdev.o \ > - v4l2-async.o v4l2-common.o > + v4l2-common.o > videodev-$(CONFIG_COMPAT) += v4l2-compat-ioctl32.o > videodev-$(CONFIG_TRACEPOINTS) += v4l2-trace.o > videodev-$(CONFIG_MEDIA_CONTROLLER) += v4l2-mc.o > videodev-$(CONFIG_SPI) += v4l2-spi.o > videodev-$(CONFIG_VIDEO_V4L2_I2C) += v4l2-i2c.o > > -obj-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o > obj-$(CONFIG_VIDEO_V4L2) += videodev.o > +ifneq ($(findstring y,$(CONFIG_V4L2_ASYNC)$(CONFIG_V4L2_FWNODE)),) Hm, to me this ifdefery is an indication that we are trying to do something fishy. Regards, Ezequiel
Hi Ezequiel, On Tue, Mar 23, 2021 at 02:46:04PM -0300, Ezequiel Garcia wrote: > On Fri, 2021-03-12 at 14:56 +0200, Sakari Ailus wrote: > > The V4L2 async framework is generally used with the V4L2 fwnode, which > > also depends on the former. There is only one exception, the CAFE_CCIC > > driver, which uses V4L2 async but does not need V4L2 fwnode. > > > > At the same time there is a vast number of systems that need videodev > > module, but have no use for v4l2-async that's now part of videodev. > > > > In order to improve, build v4l2-async and v4l2-fwnode as a single module > > called v4l2-async (the v4l2-async.c file is renamed as v4l2-async-core.c). > > Also the menu item V4L2_FWNODE is renamed as V4L2_ASYNC. > > > > Seems this is not what this patch is doing: the symbol is not renamed, > and now we have two modules v4l2-fwnode.ko and v4l2-async.ko, unless > I'm confused. Oh, well, I changed what the patch does but forgot to update this. :-I Basically this now splits v4l2-async out of videodev. > > I personally was more fond of having just one v4l2-async.ko module, > but I'm not sure if you found any obstacles. > > > This also moves the initialisation of the debufs entries for async subdevs > > to loading of the v4l2-async module. The directory is named as > > "v4l2-async". > > > > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> > > --- > > drivers/media/i2c/Kconfig | 8 ++++++++ > > drivers/media/v4l2-core/Kconfig | 4 ++++ > > drivers/media/v4l2-core/Makefile | 11 +++++++++-- > > drivers/media/v4l2-core/v4l2-async.c | 23 +++++++++++++++++++++-- > > drivers/media/v4l2-core/v4l2-dev.c | 5 ----- > > 5 files changed, 42 insertions(+), 9 deletions(-) > > > [..] > > diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile > > index e4cd589b99a5..eb5ebb5461fd 100644 > > --- a/drivers/media/v4l2-core/Makefile > > +++ b/drivers/media/v4l2-core/Makefile > > @@ -7,15 +7,22 @@ tuner-objs := tuner-core.o > > > > videodev-objs := v4l2-dev.o v4l2-ioctl.o v4l2-device.o v4l2-fh.o \ > > v4l2-event.o v4l2-ctrls.o v4l2-subdev.o \ > > - v4l2-async.o v4l2-common.o > > + v4l2-common.o > > videodev-$(CONFIG_COMPAT) += v4l2-compat-ioctl32.o > > videodev-$(CONFIG_TRACEPOINTS) += v4l2-trace.o > > videodev-$(CONFIG_MEDIA_CONTROLLER) += v4l2-mc.o > > videodev-$(CONFIG_SPI) += v4l2-spi.o > > videodev-$(CONFIG_VIDEO_V4L2_I2C) += v4l2-i2c.o > > > > -obj-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o > > obj-$(CONFIG_VIDEO_V4L2) += videodev.o > > +ifneq ($(findstring y,$(CONFIG_V4L2_ASYNC)$(CONFIG_V4L2_FWNODE)),) > > Hm, to me this ifdefery is an indication that we are trying > to do something fishy. What's happening here is that v4l2-fwnode depends on v4l2-async, but for drivers to avoid selecting both, v4l2-async is built if only CONFIG_V4L2_FWNODE is set. So this perhaps isn't too pretty but it saves hassle in Kconfig files. -- Kind regards, Sakari Ailus
On Tue, 2021-03-23 at 21:27 +0200, Sakari Ailus wrote: > Hi Ezequiel, > > On Tue, Mar 23, 2021 at 02:46:04PM -0300, Ezequiel Garcia wrote: > > On Fri, 2021-03-12 at 14:56 +0200, Sakari Ailus wrote: > > > The V4L2 async framework is generally used with the V4L2 fwnode, which > > > also depends on the former. There is only one exception, the CAFE_CCIC > > > driver, which uses V4L2 async but does not need V4L2 fwnode. > > > > > > At the same time there is a vast number of systems that need videodev > > > module, but have no use for v4l2-async that's now part of videodev. > > > > > > In order to improve, build v4l2-async and v4l2-fwnode as a single module > > > called v4l2-async (the v4l2-async.c file is renamed as v4l2-async-core.c). > > > Also the menu item V4L2_FWNODE is renamed as V4L2_ASYNC. > > > > > > > Seems this is not what this patch is doing: the symbol is not renamed, > > and now we have two modules v4l2-fwnode.ko and v4l2-async.ko, unless > > I'm confused. > > Oh, well, I changed what the patch does but forgot to update this. :-I > > Basically this now splits v4l2-async out of videodev. > > > > > I personally was more fond of having just one v4l2-async.ko module, > > but I'm not sure if you found any obstacles. > > > > > This also moves the initialisation of the debufs entries for async subdevs > > > to loading of the v4l2-async module. The directory is named as > > > "v4l2-async". > > > > > > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> > > > --- > > > drivers/media/i2c/Kconfig | 8 ++++++++ > > > drivers/media/v4l2-core/Kconfig | 4 ++++ > > > drivers/media/v4l2-core/Makefile | 11 +++++++++-- > > > drivers/media/v4l2-core/v4l2-async.c | 23 +++++++++++++++++++++-- > > > drivers/media/v4l2-core/v4l2-dev.c | 5 ----- > > > 5 files changed, 42 insertions(+), 9 deletions(-) > > > > > [..] > > > diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile > > > index e4cd589b99a5..eb5ebb5461fd 100644 > > > --- a/drivers/media/v4l2-core/Makefile > > > +++ b/drivers/media/v4l2-core/Makefile > > > @@ -7,15 +7,22 @@ tuner-objs := tuner-core.o > > > > > > videodev-objs := v4l2-dev.o v4l2-ioctl.o v4l2-device.o v4l2-fh.o \ > > > v4l2-event.o v4l2-ctrls.o v4l2-subdev.o \ > > > - v4l2-async.o v4l2-common.o > > > + v4l2-common.o > > > videodev-$(CONFIG_COMPAT) += v4l2-compat-ioctl32.o > > > videodev-$(CONFIG_TRACEPOINTS) += v4l2-trace.o > > > videodev-$(CONFIG_MEDIA_CONTROLLER) += v4l2-mc.o > > > videodev-$(CONFIG_SPI) += v4l2-spi.o > > > videodev-$(CONFIG_VIDEO_V4L2_I2C) += v4l2-i2c.o > > > > > > -obj-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o > > > obj-$(CONFIG_VIDEO_V4L2) += videodev.o > > > +ifneq ($(findstring y,$(CONFIG_V4L2_ASYNC)$(CONFIG_V4L2_FWNODE)),) > > > > Hm, to me this ifdefery is an indication that we are trying > > to do something fishy. > > What's happening here is that v4l2-fwnode depends on v4l2-async, but for > drivers to avoid selecting both, v4l2-async is built if only > CONFIG_V4L2_FWNODE is set. > > So this perhaps isn't too pretty but it saves hassle in Kconfig files. > How about: v4l2-async-objs := v4l2-async-core.o v4l2-async-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o obj-$(CONFIG_V4L2_ASYNC) += v4l2-async.o config V4L2_FWNODE bool select V4L2_ASYNC config V4L2_ASYNC tristate This avoids the ifdefs and expresses the same behavior you stated above: * v4l2-async is now out of videodev * v4l2-fwnode depends on v4l2-async (through select in this case, given they are helper modules). * v4l2-async is built if CONFIG_V4L2_FWNODE is set. And v4l2-async is a module or built-in, depending on the media subsystem (MEDIA_SUPPORT) being module or built-in, which I think makes sense. Thanks, Ezequiel
Hi Ezequiel, On Sun, Mar 28, 2021 at 10:27:35AM -0300, Ezequiel Garcia wrote: > On Tue, 2021-03-23 at 21:27 +0200, Sakari Ailus wrote: > > Hi Ezequiel, > > > > On Tue, Mar 23, 2021 at 02:46:04PM -0300, Ezequiel Garcia wrote: > > > On Fri, 2021-03-12 at 14:56 +0200, Sakari Ailus wrote: > > > > The V4L2 async framework is generally used with the V4L2 fwnode, which > > > > also depends on the former. There is only one exception, the CAFE_CCIC > > > > driver, which uses V4L2 async but does not need V4L2 fwnode. > > > > > > > > At the same time there is a vast number of systems that need videodev > > > > module, but have no use for v4l2-async that's now part of videodev. > > > > > > > > In order to improve, build v4l2-async and v4l2-fwnode as a single module > > > > called v4l2-async (the v4l2-async.c file is renamed as v4l2-async-core.c). > > > > Also the menu item V4L2_FWNODE is renamed as V4L2_ASYNC. > > > > > > > > > > Seems this is not what this patch is doing: the symbol is not renamed, > > > and now we have two modules v4l2-fwnode.ko and v4l2-async.ko, unless > > > I'm confused. > > > > Oh, well, I changed what the patch does but forgot to update this. :-I > > > > Basically this now splits v4l2-async out of videodev. > > > > > > > > I personally was more fond of having just one v4l2-async.ko module, > > > but I'm not sure if you found any obstacles. > > > > > > > This also moves the initialisation of the debufs entries for async subdevs > > > > to loading of the v4l2-async module. The directory is named as > > > > "v4l2-async". > > > > > > > > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> > > > > --- > > > > drivers/media/i2c/Kconfig | 8 ++++++++ > > > > drivers/media/v4l2-core/Kconfig | 4 ++++ > > > > drivers/media/v4l2-core/Makefile | 11 +++++++++-- > > > > drivers/media/v4l2-core/v4l2-async.c | 23 +++++++++++++++++++++-- > > > > drivers/media/v4l2-core/v4l2-dev.c | 5 ----- > > > > 5 files changed, 42 insertions(+), 9 deletions(-) > > > > > > > [..] > > > > diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile > > > > index e4cd589b99a5..eb5ebb5461fd 100644 > > > > --- a/drivers/media/v4l2-core/Makefile > > > > +++ b/drivers/media/v4l2-core/Makefile > > > > @@ -7,15 +7,22 @@ tuner-objs := tuner-core.o > > > > > > > > videodev-objs := v4l2-dev.o v4l2-ioctl.o v4l2-device.o v4l2-fh.o \ > > > > v4l2-event.o v4l2-ctrls.o v4l2-subdev.o \ > > > > - v4l2-async.o v4l2-common.o > > > > + v4l2-common.o > > > > videodev-$(CONFIG_COMPAT) += v4l2-compat-ioctl32.o > > > > videodev-$(CONFIG_TRACEPOINTS) += v4l2-trace.o > > > > videodev-$(CONFIG_MEDIA_CONTROLLER) += v4l2-mc.o > > > > videodev-$(CONFIG_SPI) += v4l2-spi.o > > > > videodev-$(CONFIG_VIDEO_V4L2_I2C) += v4l2-i2c.o > > > > > > > > -obj-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o > > > > obj-$(CONFIG_VIDEO_V4L2) += videodev.o > > > > +ifneq ($(findstring y,$(CONFIG_V4L2_ASYNC)$(CONFIG_V4L2_FWNODE)),) > > > > > > Hm, to me this ifdefery is an indication that we are trying > > > to do something fishy. > > > > What's happening here is that v4l2-fwnode depends on v4l2-async, but for > > drivers to avoid selecting both, v4l2-async is built if only > > CONFIG_V4L2_FWNODE is set. > > > > So this perhaps isn't too pretty but it saves hassle in Kconfig files. > > > > How about: > > v4l2-async-objs := v4l2-async-core.o > v4l2-async-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o > obj-$(CONFIG_V4L2_ASYNC) += v4l2-async.o > > config V4L2_FWNODE > bool > select V4L2_ASYNC Drivers are using select to enable V4L2_FWNODE. Select will select the config option but will not care about its dependencies, i.e. V4L2_ASYNC in this case. I guess another option could be just to sprinkle both in Kconfig files as needed. I'm fraknkly not too concerned about the few lines in the Makefile. If there's a need to get rid of them, there's always an easy way to get rid of it. > > config V4L2_ASYNC > tristate > > This avoids the ifdefs and expresses the same behavior > you stated above: > > * v4l2-async is now out of videodev > * v4l2-fwnode depends on v4l2-async (through select in this case, > given they are helper modules). > * v4l2-async is built if CONFIG_V4L2_FWNODE is set. > > And v4l2-async is a module or built-in, depending on the > media subsystem (MEDIA_SUPPORT) being module or built-in, > which I think makes sense. -- Kind regards, Sakari Ailus
diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index 462c0e059754..4326e50c13c9 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -217,6 +217,7 @@ config VIDEO_ADV7180 depends on GPIOLIB && VIDEO_V4L2 && I2C select MEDIA_CONTROLLER select VIDEO_V4L2_SUBDEV_API + select V4L2_ASYNC help Support for the Analog Devices ADV7180 video decoder. @@ -1341,6 +1342,7 @@ config VIDEO_AD5820 tristate "AD5820 lens voice coil support" depends on GPIOLIB && I2C && VIDEO_V4L2 select MEDIA_CONTROLLER + select V4L2_ASYNC help This is a driver for the AD5820 camera lens voice coil. It is used for example in Nokia N900 (RX-51). @@ -1350,6 +1352,7 @@ config VIDEO_AK7375 depends on I2C && VIDEO_V4L2 select MEDIA_CONTROLLER select VIDEO_V4L2_SUBDEV_API + select V4L2_ASYNC help This is a driver for the AK7375 camera lens voice coil. AK7375 is a 12 bit DAC with 120mA output current sink @@ -1361,6 +1364,7 @@ config VIDEO_DW9714 depends on I2C && VIDEO_V4L2 select MEDIA_CONTROLLER select VIDEO_V4L2_SUBDEV_API + select V4L2_ASYNC help This is a driver for the DW9714 camera lens voice coil. DW9714 is a 10 bit DAC with 120mA output current sink @@ -1384,6 +1388,7 @@ config VIDEO_DW9807_VCM depends on I2C && VIDEO_V4L2 select MEDIA_CONTROLLER select VIDEO_V4L2_SUBDEV_API + select V4L2_ASYNC help This is a driver for the DW9807 camera lens voice coil. DW9807 is a 10 bit DAC with 100mA output current sink @@ -1399,6 +1404,7 @@ config VIDEO_ADP1653 tristate "ADP1653 flash support" depends on I2C && VIDEO_V4L2 select MEDIA_CONTROLLER + select V4L2_ASYNC help This is a driver for the ADP1653 flash controller. It is used for example in Nokia N900. @@ -1408,6 +1414,7 @@ config VIDEO_LM3560 depends on I2C && VIDEO_V4L2 select MEDIA_CONTROLLER select REGMAP_I2C + select V4L2_ASYNC help This is a driver for the lm3560 dual flash controllers. It controls flash, torch LEDs. @@ -1417,6 +1424,7 @@ config VIDEO_LM3646 depends on I2C && VIDEO_V4L2 select MEDIA_CONTROLLER select REGMAP_I2C + select V4L2_ASYNC help This is a driver for the lm3646 dual flash controllers. It controls flash, torch LEDs. diff --git a/drivers/media/v4l2-core/Kconfig b/drivers/media/v4l2-core/Kconfig index bf49f83cb86f..61b023b56d75 100644 --- a/drivers/media/v4l2-core/Kconfig +++ b/drivers/media/v4l2-core/Kconfig @@ -62,6 +62,7 @@ config V4L2_FLASH_LED_CLASS tristate "V4L2 flash API for LED flash class devices" depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API depends on LEDS_CLASS_FLASH + select V4L2_ASYNC help Say Y here to enable V4L2 flash API support for LED flash class drivers. @@ -71,6 +72,9 @@ config V4L2_FLASH_LED_CLASS config V4L2_FWNODE tristate +config V4L2_ASYNC + tristate + # Used by drivers that need Videobuf modules config VIDEOBUF_GEN tristate diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile index e4cd589b99a5..eb5ebb5461fd 100644 --- a/drivers/media/v4l2-core/Makefile +++ b/drivers/media/v4l2-core/Makefile @@ -7,15 +7,22 @@ tuner-objs := tuner-core.o videodev-objs := v4l2-dev.o v4l2-ioctl.o v4l2-device.o v4l2-fh.o \ v4l2-event.o v4l2-ctrls.o v4l2-subdev.o \ - v4l2-async.o v4l2-common.o + v4l2-common.o videodev-$(CONFIG_COMPAT) += v4l2-compat-ioctl32.o videodev-$(CONFIG_TRACEPOINTS) += v4l2-trace.o videodev-$(CONFIG_MEDIA_CONTROLLER) += v4l2-mc.o videodev-$(CONFIG_SPI) += v4l2-spi.o videodev-$(CONFIG_VIDEO_V4L2_I2C) += v4l2-i2c.o -obj-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o obj-$(CONFIG_VIDEO_V4L2) += videodev.o +ifneq ($(findstring y,$(CONFIG_V4L2_ASYNC)$(CONFIG_V4L2_FWNODE)),) +obj-y += v4l2-async.o +else +ifneq ($(findstring m,$(CONFIG_V4L2_ASYNC)$(CONFIG_V4L2_FWNODE)),) +obj-m += v4l2-async.o +endif +endif +obj-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o obj-$(CONFIG_VIDEO_V4L2) += v4l2-dv-timings.o obj-$(CONFIG_VIDEO_TUNER) += tuner.o diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c index 21b3890b96fc..6e49386f0284 100644 --- a/drivers/media/v4l2-core/v4l2-async.c +++ b/drivers/media/v4l2-core/v4l2-async.c @@ -852,8 +852,27 @@ static int pending_subdevs_show(struct seq_file *s, void *data) } DEFINE_SHOW_ATTRIBUTE(pending_subdevs); -void v4l2_async_debug_init(struct dentry *debugfs_dir) +static struct dentry *v4l2_async_debugfs_dir; + +static int __init v4l2_async_init(void) { - debugfs_create_file("pending_async_subdevices", 0444, debugfs_dir, NULL, + v4l2_async_debugfs_dir = debugfs_create_dir("v4l2-async", NULL); + debugfs_create_file("pending_async_subdevices", 0444, + v4l2_async_debugfs_dir, NULL, &pending_subdevs_fops); + + return 0; +} + +static void __exit v4l2_async_exit(void) +{ + debugfs_remove_recursive(v4l2_async_debugfs_dir); } + +subsys_initcall(v4l2_async_init); +module_exit(v4l2_async_exit); + +MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>"); +MODULE_AUTHOR("Sakari Ailus <sakari.ailus@linux.intel.com>"); +MODULE_AUTHOR("Ezequiel Garcia <ezequiel@collabora.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c index b6a72d297775..5002e3cd110f 100644 --- a/drivers/media/v4l2-core/v4l2-dev.c +++ b/drivers/media/v4l2-core/v4l2-dev.c @@ -39,8 +39,6 @@ __func__, ##arg); \ } while (0) -static struct dentry *v4l2_debugfs_dir; - /* * sysfs stuff */ @@ -1120,8 +1118,6 @@ static int __init videodev_init(void) return -EIO; } - v4l2_debugfs_dir = debugfs_create_dir("video4linux", NULL); - v4l2_async_debug_init(v4l2_debugfs_dir); return 0; } @@ -1129,7 +1125,6 @@ static void __exit videodev_exit(void) { dev_t dev = MKDEV(VIDEO_MAJOR, 0); - debugfs_remove_recursive(v4l2_debugfs_dir); class_unregister(&video_class); unregister_chrdev_region(dev, VIDEO_NUM_DEVICES); }
The V4L2 async framework is generally used with the V4L2 fwnode, which also depends on the former. There is only one exception, the CAFE_CCIC driver, which uses V4L2 async but does not need V4L2 fwnode. At the same time there is a vast number of systems that need videodev module, but have no use for v4l2-async that's now part of videodev. In order to improve, build v4l2-async and v4l2-fwnode as a single module called v4l2-async (the v4l2-async.c file is renamed as v4l2-async-core.c). Also the menu item V4L2_FWNODE is renamed as V4L2_ASYNC. This also moves the initialisation of the debufs entries for async subdevs to loading of the v4l2-async module. The directory is named as "v4l2-async". Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> --- drivers/media/i2c/Kconfig | 8 ++++++++ drivers/media/v4l2-core/Kconfig | 4 ++++ drivers/media/v4l2-core/Makefile | 11 +++++++++-- drivers/media/v4l2-core/v4l2-async.c | 23 +++++++++++++++++++++-- drivers/media/v4l2-core/v4l2-dev.c | 5 ----- 5 files changed, 42 insertions(+), 9 deletions(-)