Hi Sakari, Thank you for the patch. On Thu, Mar 30, 2023 at 02:58:52PM +0300, Sakari Ailus wrote: > Set the v4l2_device already in async notifier init, so struct device > related to it will be available before the notifier is registered. > > This patch has been mostly generated using the following command: > > git grep -l v4l2_async_nf_init -- drivers/media/ drivers/staging/media/ | > while read i; do perl -e ' > @a=<>; unlink("'$i'"); open(F, "> '$i'"); > for $f ({i=>"v4l2_async_nf_init", r=>"v4l2_async_nf_register"}, > {i=>"v4l2_async_subdev_nf_init", > r=>"v4l2_async_subdev_nf_register"} ) { > my $b; @a = map { $b = "$1, $2" if > s/$f->{r}\(([^,]*),\s*([^\)]*)\)/v4l2_async_nf_register\($2\)/; > $_; } @a; @a = map { if (defined $b) { > s/v4l2_async_nf_init\([^\)]*\)/$f->{i}\($b\)/; > s/$f->{r}\(\K[^,]*,\s*//; }; $_; } @a; }; print F @a; close F;' > < $i; done You should learn coccinelle at some point :-) > Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx> > --- > drivers/media/i2c/max9286.c | 4 +- > drivers/media/i2c/st-mipid02.c | 4 +- > drivers/media/i2c/tc358746.c | 4 +- > drivers/media/pci/intel/ipu3/ipu3-cio2-main.c | 4 +- > drivers/media/platform/atmel/atmel-isi.c | 4 +- > drivers/media/platform/cadence/cdns-csi2rx.c | 4 +- > drivers/media/platform/intel/pxa_camera.c | 4 +- > drivers/media/platform/marvell/cafe-driver.c | 2 +- > drivers/media/platform/marvell/mcam-core.c | 2 +- > drivers/media/platform/marvell/mmp-driver.c | 2 +- > .../platform/microchip/microchip-csi2dc.c | 5 +-- > .../microchip/microchip-sama5d2-isc.c | 5 +-- > .../microchip/microchip-sama7g5-isc.c | 5 +-- > drivers/media/platform/nxp/imx-mipi-csis.c | 4 +- > drivers/media/platform/nxp/imx7-media-csi.c | 4 +- > drivers/media/platform/qcom/camss/camss.c | 5 +-- > drivers/media/platform/renesas/rcar-isp.c | 4 +- > .../platform/renesas/rcar-vin/rcar-core.c | 8 ++-- > .../platform/renesas/rcar-vin/rcar-csi2.c | 4 +- > drivers/media/platform/renesas/rcar_drif.c | 4 +- > drivers/media/platform/renesas/renesas-ceu.c | 4 +- > .../platform/renesas/rzg2l-cru/rzg2l-core.c | 4 +- > .../platform/renesas/rzg2l-cru/rzg2l-csi2.c | 4 +- > .../platform/rockchip/rkisp1/rkisp1-dev.c | 4 +- > .../platform/samsung/exynos4-is/media-dev.c | 5 +-- > drivers/media/platform/st/stm32/stm32-dcmi.c | 4 +- > .../platform/sunxi/sun4i-csi/sun4i_csi.c | 4 +- > .../sunxi/sun6i-csi/sun6i_csi_bridge.c | 6 +-- > .../sunxi/sun6i-mipi-csi2/sun6i_mipi_csi2.c | 4 +- > .../sun8i_a83t_mipi_csi2.c | 4 +- > .../media/platform/ti/am437x/am437x-vpfe.c | 4 +- > drivers/media/platform/ti/cal/cal.c | 4 +- > .../media/platform/ti/davinci/vpif_capture.c | 11 ++--- > drivers/media/platform/ti/omap3isp/isp.c | 4 +- > drivers/media/platform/video-mux.c | 4 +- > drivers/media/platform/xilinx/xilinx-vipp.c | 4 +- > drivers/media/v4l2-core/v4l2-async.c | 43 +++++++------------ > drivers/media/v4l2-core/v4l2-fwnode.c | 4 +- > .../deprecated/atmel/atmel-sama5d2-isc.c | 5 +-- > drivers/staging/media/imx/imx-media-csi.c | 4 +- > .../staging/media/imx/imx-media-dev-common.c | 4 +- > drivers/staging/media/imx/imx6-mipi-csi2.c | 4 +- > drivers/staging/media/imx/imx8mq-mipi-csi2.c | 4 +- > .../media/sunxi/sun6i-isp/sun6i_isp_proc.c | 4 +- > drivers/staging/media/tegra-video/vi.c | 4 +- > include/media/v4l2-async.h | 35 +++++++++------ > 46 files changed, 129 insertions(+), 138 deletions(-) [snip] > diff --git a/include/media/v4l2-async.h b/include/media/v4l2-async.h > index 750bf4ddb267..cf2082e17fc4 100644 > --- a/include/media/v4l2-async.h > +++ b/include/media/v4l2-async.h > @@ -159,6 +159,24 @@ void v4l2_async_debug_init(struct dentry *debugfs_dir); > /** > * v4l2_async_nf_init - Initialize a notifier. > * > + * @v4l2_dev: pointer to &struct v4l2_device > + * @notifier: pointer to &struct v4l2_async_notifier > + * > + * This function initializes the notifier @asc_list. It must be called > + * before adding a subdevice to a notifier, using one of: > + * v4l2_async_nf_add_fwnode_remote(), > + * v4l2_async_nf_add_fwnode(), > + * v4l2_async_nf_add_i2c(), > + * __v4l2_async_nf_add_connection() or > + * v4l2_async_nf_parse_fwnode_endpoints(). > + */ > +void v4l2_async_nf_init(struct v4l2_device *v4l2_dev, > + struct v4l2_async_notifier *notifier); The function operates on a notifier, could we make it the first argument ? Same for v4l2_async_subdev_nf_init(). > + > +/** > + * v4l2_async_subdev_nf_init - Initialize a sub-device notifier. > + * > + * @v4l2_dev: pointer to &struct v4l2_device > * @notifier: pointer to &struct v4l2_async_notifier > * > * This function initializes the notifier @asc_list. It must be called > @@ -169,7 +187,8 @@ void v4l2_async_debug_init(struct dentry *debugfs_dir); > * __v4l2_async_nf_add_connection() or > * v4l2_async_nf_parse_fwnode_endpoints(). > */ > -void v4l2_async_nf_init(struct v4l2_async_notifier *notifier); > +void v4l2_async_subdev_nf_init(struct v4l2_subdev *sd, > + struct v4l2_async_notifier *notifier); > > /** > * __v4l2_async_nf_add_connection() - Add an async subdev to the notifier's > @@ -264,21 +283,9 @@ __v4l2_async_nf_add_i2c(struct v4l2_async_notifier *notifier, > /** > * v4l2_async_nf_register - registers a subdevice asynchronous notifier > * > - * @v4l2_dev: pointer to &struct v4l2_device > - * @notifier: pointer to &struct v4l2_async_notifier > - */ > -int v4l2_async_nf_register(struct v4l2_device *v4l2_dev, > - struct v4l2_async_notifier *notifier); > - > -/** > - * v4l2_async_subdev_nf_register - registers a subdevice asynchronous > - * notifier for a sub-device > - * > - * @sd: pointer to &struct v4l2_subdev > * @notifier: pointer to &struct v4l2_async_notifier > */ > -int v4l2_async_subdev_nf_register(struct v4l2_subdev *sd, > - struct v4l2_async_notifier *notifier); > +int v4l2_async_nf_register(struct v4l2_async_notifier *notifier); > > /** > * v4l2_async_nf_unregister - unregisters a subdevice -- Regards, Laurent Pinchart