| Message ID | 20240430103956.60190-16-jacopo.mondi@ideasonboard.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [01/19] media: adv748x: Add support for active state | expand |
Hi Jacopo, Thanks for your work. On 2024-04-30 12:39:51 +0200, Jacopo Mondi wrote: > Create and initialize the v4l2_subdev_state for the R-Car CSI-2 receiver > in order to prepare to support multiplexed transmitters. > > Create the subdevice state with v4l2_subdev_init_finalize() and > implement the init_state() operation to guarantee the state is initialized. > > The routing table within the R-Car CSI-2 receiver is fixed, streams > received on source_stream X will be directed to pad (X + 1) by default. > Initialize a static routing table with such routes set as active. > > While at it, disable runtime_pm() in the probe() function error path. Can we break this out in a separate patch? As the multiplexed stream work will not be ready for v6.10 if I understood the tendencies correctly (?), we can at least fix this issue before that. > > Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> > --- > drivers/media/platform/renesas/rcar-csi2.c | 74 +++++++++++++++++++++- > 1 file changed, 72 insertions(+), 2 deletions(-) > > diff --git a/drivers/media/platform/renesas/rcar-csi2.c b/drivers/media/platform/renesas/rcar-csi2.c > index 582d5e35db0e..82dc0b92b8d3 100644 > --- a/drivers/media/platform/renesas/rcar-csi2.c > +++ b/drivers/media/platform/renesas/rcar-csi2.c > @@ -1226,6 +1226,65 @@ static const struct v4l2_subdev_ops rcar_csi2_subdev_ops = { > .pad = &rcar_csi2_pad_ops, > }; > > +static int rcsi2_init_state(struct v4l2_subdev *sd, > + struct v4l2_subdev_state *state) > +{ > + /* > + * Routing is fixed for this device: streams sent on sink_stream X > + * are directed to pad (X + 1). Which streams goes to the next > + * processing block (VIN) is controlled by link enablement between the > + * CSI-2 and the VIN itself and not by the CSI-2 routing table. > + * > + * The routing table is then fixed, as stream X will be directed to > + * csi:(X + 1)/0 and will be transmitted to VINs the on media link > + * csi2:(x + 1)->vin:0. > + * > + * For example, to route stream #3 to VIN #1 : "csi2:4/0 -> vin1:0" and > + * to route stream #2 to VIN #4 : "csi2:3/0 -> vin4:0". > + */ > + struct v4l2_subdev_route routes[] = { > + { > + .sink_pad = RCAR_CSI2_SINK, > + .sink_stream = 0, > + .source_pad = RCAR_CSI2_SOURCE_VC0, > + .source_stream = 0, > + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, > + }, > + { > + .sink_pad = RCAR_CSI2_SINK, > + .sink_stream = 1, > + .source_pad = RCAR_CSI2_SOURCE_VC1, > + .source_stream = 0, > + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, > + }, > + { > + .sink_pad = RCAR_CSI2_SINK, > + .sink_stream = 2, > + .source_pad = RCAR_CSI2_SOURCE_VC2, > + .source_stream = 0, > + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, > + }, > + { > + .sink_pad = RCAR_CSI2_SINK, > + .sink_stream = 3, > + .source_pad = RCAR_CSI2_SOURCE_VC3, > + .source_stream = 0, > + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, > + }, > + }; > + > + struct v4l2_subdev_krouting routing = { > + .num_routes = ARRAY_SIZE(routes), > + .routes = routes, > + }; Should not the two structs above be static const as you return a pointer to them? > + > + return v4l2_subdev_set_routing(sd, state, &routing); > +} > + > +static const struct v4l2_subdev_internal_ops rcar_csi2_internal_ops = { > + .init_state = rcsi2_init_state, > +}; > + > static irqreturn_t rcsi2_irq(int irq, void *data) > { > struct rcar_csi2 *priv = data; > @@ -1887,11 +1946,13 @@ static int rcsi2_probe(struct platform_device *pdev) > > priv->subdev.owner = THIS_MODULE; > priv->subdev.dev = &pdev->dev; > + priv->subdev.internal_ops = &rcar_csi2_internal_ops; > v4l2_subdev_init(&priv->subdev, &rcar_csi2_subdev_ops); > v4l2_set_subdevdata(&priv->subdev, &pdev->dev); > snprintf(priv->subdev.name, sizeof(priv->subdev.name), "%s %s", > KBUILD_MODNAME, dev_name(&pdev->dev)); > - priv->subdev.flags = V4L2_SUBDEV_FL_HAS_DEVNODE; > + priv->subdev.flags = V4L2_SUBDEV_FL_HAS_DEVNODE | > + V4L2_SUBDEV_FL_STREAMS; > > priv->subdev.entity.function = MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER; > priv->subdev.entity.ops = &rcar_csi2_entity_ops; > @@ -1912,14 +1973,22 @@ static int rcsi2_probe(struct platform_device *pdev) > > pm_runtime_enable(&pdev->dev); > > + ret = v4l2_subdev_init_finalize(&priv->subdev); > + if (ret) > + goto error_pm_runtime; > + > ret = v4l2_async_register_subdev(&priv->subdev); > if (ret < 0) > - goto error_async; > + goto error_subdev; > > dev_info(priv->dev, "%d lanes found\n", priv->lanes); > > return 0; > > +error_subdev: > + v4l2_subdev_cleanup(&priv->subdev); > +error_pm_runtime: > + pm_runtime_disable(&pdev->dev); > error_async: > v4l2_async_nf_unregister(&priv->notifier); > v4l2_async_nf_cleanup(&priv->notifier); > @@ -1936,6 +2005,7 @@ static void rcsi2_remove(struct platform_device *pdev) > v4l2_async_nf_unregister(&priv->notifier); > v4l2_async_nf_cleanup(&priv->notifier); > v4l2_async_unregister_subdev(&priv->subdev); > + v4l2_subdev_cleanup(&priv->subdev); > > pm_runtime_disable(&pdev->dev); > > -- > 2.44.0 >
On Thu, May 02, 2024 at 04:23:16PM +0200, Niklas Söderlund wrote: > Hi Jacopo, > > Thanks for your work. > > On 2024-04-30 12:39:51 +0200, Jacopo Mondi wrote: > > Create and initialize the v4l2_subdev_state for the R-Car CSI-2 receiver > > in order to prepare to support multiplexed transmitters. > > > > Create the subdevice state with v4l2_subdev_init_finalize() and > > implement the init_state() operation to guarantee the state is initialized. > > > > The routing table within the R-Car CSI-2 receiver is fixed, streams > > received on source_stream X will be directed to pad (X + 1) by default. > > Initialize a static routing table with such routes set as active. > > > > While at it, disable runtime_pm() in the probe() function error path. s/runtime_pm()/runtime PM/ > Can we break this out in a separate patch? As the multiplexed stream > work will not be ready for v6.10 if I understood the tendencies > correctly (?), we can at least fix this issue before that. Agreed, the fix should be a separate patch, with a Fixes: tag. > > Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> > > --- > > drivers/media/platform/renesas/rcar-csi2.c | 74 +++++++++++++++++++++- > > 1 file changed, 72 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/media/platform/renesas/rcar-csi2.c b/drivers/media/platform/renesas/rcar-csi2.c > > index 582d5e35db0e..82dc0b92b8d3 100644 > > --- a/drivers/media/platform/renesas/rcar-csi2.c > > +++ b/drivers/media/platform/renesas/rcar-csi2.c > > @@ -1226,6 +1226,65 @@ static const struct v4l2_subdev_ops rcar_csi2_subdev_ops = { > > .pad = &rcar_csi2_pad_ops, > > }; > > > > +static int rcsi2_init_state(struct v4l2_subdev *sd, > > + struct v4l2_subdev_state *state) > > +{ > > + /* > > + * Routing is fixed for this device: streams sent on sink_stream X > > + * are directed to pad (X + 1). Which streams goes to the next > > + * processing block (VIN) is controlled by link enablement between the > > + * CSI-2 and the VIN itself and not by the CSI-2 routing table. > > + * > > + * The routing table is then fixed, as stream X will be directed to > > + * csi:(X + 1)/0 and will be transmitted to VINs the on media link > > + * csi2:(x + 1)->vin:0. > > + * > > + * For example, to route stream #3 to VIN #1 : "csi2:4/0 -> vin1:0" and > > + * to route stream #2 to VIN #4 : "csi2:3/0 -> vin4:0". > > + */ > > + struct v4l2_subdev_route routes[] = { > > + { > > + .sink_pad = RCAR_CSI2_SINK, > > + .sink_stream = 0, > > + .source_pad = RCAR_CSI2_SOURCE_VC0, > > + .source_stream = 0, > > + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, > > + }, > > + { > > + .sink_pad = RCAR_CSI2_SINK, > > + .sink_stream = 1, > > + .source_pad = RCAR_CSI2_SOURCE_VC1, > > + .source_stream = 0, > > + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, > > + }, > > + { > > + .sink_pad = RCAR_CSI2_SINK, > > + .sink_stream = 2, > > + .source_pad = RCAR_CSI2_SOURCE_VC2, > > + .source_stream = 0, > > + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, > > + }, > > + { > > + .sink_pad = RCAR_CSI2_SINK, > > + .sink_stream = 3, > > + .source_pad = RCAR_CSI2_SOURCE_VC3, > > + .source_stream = 0, > > + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, > > + }, > > + }; > > + > > + struct v4l2_subdev_krouting routing = { > > + .num_routes = ARRAY_SIZE(routes), > > + .routes = routes, > > + }; > > Should not the two structs above be static const as you return a pointer > to them? v4l2_subdev_set_routing() takes a non-const v4l2_subdev_krouting argument. Unless I'm missing something, this function doesn't return a pointer to the local structures. > > + > > + return v4l2_subdev_set_routing(sd, state, &routing); > > +} > > + > > +static const struct v4l2_subdev_internal_ops rcar_csi2_internal_ops = { > > + .init_state = rcsi2_init_state, > > +}; > > + > > static irqreturn_t rcsi2_irq(int irq, void *data) > > { > > struct rcar_csi2 *priv = data; > > @@ -1887,11 +1946,13 @@ static int rcsi2_probe(struct platform_device *pdev) > > > > priv->subdev.owner = THIS_MODULE; > > priv->subdev.dev = &pdev->dev; > > + priv->subdev.internal_ops = &rcar_csi2_internal_ops; > > v4l2_subdev_init(&priv->subdev, &rcar_csi2_subdev_ops); > > v4l2_set_subdevdata(&priv->subdev, &pdev->dev); > > snprintf(priv->subdev.name, sizeof(priv->subdev.name), "%s %s", > > KBUILD_MODNAME, dev_name(&pdev->dev)); > > - priv->subdev.flags = V4L2_SUBDEV_FL_HAS_DEVNODE; > > + priv->subdev.flags = V4L2_SUBDEV_FL_HAS_DEVNODE | > > + V4L2_SUBDEV_FL_STREAMS; > > > > priv->subdev.entity.function = MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER; > > priv->subdev.entity.ops = &rcar_csi2_entity_ops; > > @@ -1912,14 +1973,22 @@ static int rcsi2_probe(struct platform_device *pdev) > > > > pm_runtime_enable(&pdev->dev); > > > > + ret = v4l2_subdev_init_finalize(&priv->subdev); > > + if (ret) > > + goto error_pm_runtime; > > + > > ret = v4l2_async_register_subdev(&priv->subdev); > > if (ret < 0) > > - goto error_async; > > + goto error_subdev; > > > > dev_info(priv->dev, "%d lanes found\n", priv->lanes); > > > > return 0; > > > > +error_subdev: > > + v4l2_subdev_cleanup(&priv->subdev); > > +error_pm_runtime: > > + pm_runtime_disable(&pdev->dev); > > error_async: > > v4l2_async_nf_unregister(&priv->notifier); > > v4l2_async_nf_cleanup(&priv->notifier); > > @@ -1936,6 +2005,7 @@ static void rcsi2_remove(struct platform_device *pdev) > > v4l2_async_nf_unregister(&priv->notifier); > > v4l2_async_nf_cleanup(&priv->notifier); > > v4l2_async_unregister_subdev(&priv->subdev); > > + v4l2_subdev_cleanup(&priv->subdev); > > > > pm_runtime_disable(&pdev->dev); > >
Hi Laurent, Niklas On Thu, May 02, 2024 at 09:41:24PM GMT, Laurent Pinchart wrote: > On Thu, May 02, 2024 at 04:23:16PM +0200, Niklas Söderlund wrote: > > Hi Jacopo, > > > > Thanks for your work. > > > > On 2024-04-30 12:39:51 +0200, Jacopo Mondi wrote: > > > Create and initialize the v4l2_subdev_state for the R-Car CSI-2 receiver > > > in order to prepare to support multiplexed transmitters. > > > > > > Create the subdevice state with v4l2_subdev_init_finalize() and > > > implement the init_state() operation to guarantee the state is initialized. > > > > > > The routing table within the R-Car CSI-2 receiver is fixed, streams > > > received on source_stream X will be directed to pad (X + 1) by default. > > > Initialize a static routing table with such routes set as active. > > > > > > While at it, disable runtime_pm() in the probe() function error path. > > s/runtime_pm()/runtime PM/ > > > Can we break this out in a separate patch? As the multiplexed stream > > work will not be ready for v6.10 if I understood the tendencies > > correctly (?), we can at least fix this issue before that. > > Agreed, the fix should be a separate patch, with a Fixes: tag. I'll collect this and the two other smaller fixes in a separate series > > > > Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> > > > --- > > > drivers/media/platform/renesas/rcar-csi2.c | 74 +++++++++++++++++++++- > > > 1 file changed, 72 insertions(+), 2 deletions(-) > > > > > > diff --git a/drivers/media/platform/renesas/rcar-csi2.c b/drivers/media/platform/renesas/rcar-csi2.c > > > index 582d5e35db0e..82dc0b92b8d3 100644 > > > --- a/drivers/media/platform/renesas/rcar-csi2.c > > > +++ b/drivers/media/platform/renesas/rcar-csi2.c > > > @@ -1226,6 +1226,65 @@ static const struct v4l2_subdev_ops rcar_csi2_subdev_ops = { > > > .pad = &rcar_csi2_pad_ops, > > > }; > > > > > > +static int rcsi2_init_state(struct v4l2_subdev *sd, > > > + struct v4l2_subdev_state *state) > > > +{ > > > + /* > > > + * Routing is fixed for this device: streams sent on sink_stream X > > > + * are directed to pad (X + 1). Which streams goes to the next > > > + * processing block (VIN) is controlled by link enablement between the > > > + * CSI-2 and the VIN itself and not by the CSI-2 routing table. > > > + * > > > + * The routing table is then fixed, as stream X will be directed to > > > + * csi:(X + 1)/0 and will be transmitted to VINs the on media link > > > + * csi2:(x + 1)->vin:0. > > > + * > > > + * For example, to route stream #3 to VIN #1 : "csi2:4/0 -> vin1:0" and > > > + * to route stream #2 to VIN #4 : "csi2:3/0 -> vin4:0". > > > + */ > > > + struct v4l2_subdev_route routes[] = { > > > + { > > > + .sink_pad = RCAR_CSI2_SINK, > > > + .sink_stream = 0, > > > + .source_pad = RCAR_CSI2_SOURCE_VC0, > > > + .source_stream = 0, > > > + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, > > > + }, > > > + { > > > + .sink_pad = RCAR_CSI2_SINK, > > > + .sink_stream = 1, > > > + .source_pad = RCAR_CSI2_SOURCE_VC1, > > > + .source_stream = 0, > > > + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, > > > + }, > > > + { > > > + .sink_pad = RCAR_CSI2_SINK, > > > + .sink_stream = 2, > > > + .source_pad = RCAR_CSI2_SOURCE_VC2, > > > + .source_stream = 0, > > > + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, > > > + }, > > > + { > > > + .sink_pad = RCAR_CSI2_SINK, > > > + .sink_stream = 3, > > > + .source_pad = RCAR_CSI2_SOURCE_VC3, > > > + .source_stream = 0, > > > + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, > > > + }, > > > + }; > > > + > > > + struct v4l2_subdev_krouting routing = { > > > + .num_routes = ARRAY_SIZE(routes), > > > + .routes = routes, > > > + }; > > > > Should not the two structs above be static const as you return a pointer > > to them? > > v4l2_subdev_set_routing() takes a non-const v4l2_subdev_krouting > argument. Unless I'm missing something, this function doesn't return a > pointer to the local structures. > > > > + > > > + return v4l2_subdev_set_routing(sd, state, &routing); > > > +} > > > + > > > +static const struct v4l2_subdev_internal_ops rcar_csi2_internal_ops = { > > > + .init_state = rcsi2_init_state, > > > +}; > > > + > > > static irqreturn_t rcsi2_irq(int irq, void *data) > > > { > > > struct rcar_csi2 *priv = data; > > > @@ -1887,11 +1946,13 @@ static int rcsi2_probe(struct platform_device *pdev) > > > > > > priv->subdev.owner = THIS_MODULE; > > > priv->subdev.dev = &pdev->dev; > > > + priv->subdev.internal_ops = &rcar_csi2_internal_ops; > > > v4l2_subdev_init(&priv->subdev, &rcar_csi2_subdev_ops); > > > v4l2_set_subdevdata(&priv->subdev, &pdev->dev); > > > snprintf(priv->subdev.name, sizeof(priv->subdev.name), "%s %s", > > > KBUILD_MODNAME, dev_name(&pdev->dev)); > > > - priv->subdev.flags = V4L2_SUBDEV_FL_HAS_DEVNODE; > > > + priv->subdev.flags = V4L2_SUBDEV_FL_HAS_DEVNODE | > > > + V4L2_SUBDEV_FL_STREAMS; > > > > > > priv->subdev.entity.function = MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER; > > > priv->subdev.entity.ops = &rcar_csi2_entity_ops; > > > @@ -1912,14 +1973,22 @@ static int rcsi2_probe(struct platform_device *pdev) > > > > > > pm_runtime_enable(&pdev->dev); > > > > > > + ret = v4l2_subdev_init_finalize(&priv->subdev); > > > + if (ret) > > > + goto error_pm_runtime; > > > + > > > ret = v4l2_async_register_subdev(&priv->subdev); > > > if (ret < 0) > > > - goto error_async; > > > + goto error_subdev; > > > > > > dev_info(priv->dev, "%d lanes found\n", priv->lanes); > > > > > > return 0; > > > > > > +error_subdev: > > > + v4l2_subdev_cleanup(&priv->subdev); > > > +error_pm_runtime: > > > + pm_runtime_disable(&pdev->dev); > > > error_async: > > > v4l2_async_nf_unregister(&priv->notifier); > > > v4l2_async_nf_cleanup(&priv->notifier); > > > @@ -1936,6 +2005,7 @@ static void rcsi2_remove(struct platform_device *pdev) > > > v4l2_async_nf_unregister(&priv->notifier); > > > v4l2_async_nf_cleanup(&priv->notifier); > > > v4l2_async_unregister_subdev(&priv->subdev); > > > + v4l2_subdev_cleanup(&priv->subdev); > > > > > > pm_runtime_disable(&pdev->dev); > > > > > -- > Regards, > > Laurent Pinchart
diff --git a/drivers/media/platform/renesas/rcar-csi2.c b/drivers/media/platform/renesas/rcar-csi2.c index 582d5e35db0e..82dc0b92b8d3 100644 --- a/drivers/media/platform/renesas/rcar-csi2.c +++ b/drivers/media/platform/renesas/rcar-csi2.c @@ -1226,6 +1226,65 @@ static const struct v4l2_subdev_ops rcar_csi2_subdev_ops = { .pad = &rcar_csi2_pad_ops, }; +static int rcsi2_init_state(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state) +{ + /* + * Routing is fixed for this device: streams sent on sink_stream X + * are directed to pad (X + 1). Which streams goes to the next + * processing block (VIN) is controlled by link enablement between the + * CSI-2 and the VIN itself and not by the CSI-2 routing table. + * + * The routing table is then fixed, as stream X will be directed to + * csi:(X + 1)/0 and will be transmitted to VINs the on media link + * csi2:(x + 1)->vin:0. + * + * For example, to route stream #3 to VIN #1 : "csi2:4/0 -> vin1:0" and + * to route stream #2 to VIN #4 : "csi2:3/0 -> vin4:0". + */ + struct v4l2_subdev_route routes[] = { + { + .sink_pad = RCAR_CSI2_SINK, + .sink_stream = 0, + .source_pad = RCAR_CSI2_SOURCE_VC0, + .source_stream = 0, + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, + }, + { + .sink_pad = RCAR_CSI2_SINK, + .sink_stream = 1, + .source_pad = RCAR_CSI2_SOURCE_VC1, + .source_stream = 0, + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, + }, + { + .sink_pad = RCAR_CSI2_SINK, + .sink_stream = 2, + .source_pad = RCAR_CSI2_SOURCE_VC2, + .source_stream = 0, + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, + }, + { + .sink_pad = RCAR_CSI2_SINK, + .sink_stream = 3, + .source_pad = RCAR_CSI2_SOURCE_VC3, + .source_stream = 0, + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, + }, + }; + + struct v4l2_subdev_krouting routing = { + .num_routes = ARRAY_SIZE(routes), + .routes = routes, + }; + + return v4l2_subdev_set_routing(sd, state, &routing); +} + +static const struct v4l2_subdev_internal_ops rcar_csi2_internal_ops = { + .init_state = rcsi2_init_state, +}; + static irqreturn_t rcsi2_irq(int irq, void *data) { struct rcar_csi2 *priv = data; @@ -1887,11 +1946,13 @@ static int rcsi2_probe(struct platform_device *pdev) priv->subdev.owner = THIS_MODULE; priv->subdev.dev = &pdev->dev; + priv->subdev.internal_ops = &rcar_csi2_internal_ops; v4l2_subdev_init(&priv->subdev, &rcar_csi2_subdev_ops); v4l2_set_subdevdata(&priv->subdev, &pdev->dev); snprintf(priv->subdev.name, sizeof(priv->subdev.name), "%s %s", KBUILD_MODNAME, dev_name(&pdev->dev)); - priv->subdev.flags = V4L2_SUBDEV_FL_HAS_DEVNODE; + priv->subdev.flags = V4L2_SUBDEV_FL_HAS_DEVNODE | + V4L2_SUBDEV_FL_STREAMS; priv->subdev.entity.function = MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER; priv->subdev.entity.ops = &rcar_csi2_entity_ops; @@ -1912,14 +1973,22 @@ static int rcsi2_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); + ret = v4l2_subdev_init_finalize(&priv->subdev); + if (ret) + goto error_pm_runtime; + ret = v4l2_async_register_subdev(&priv->subdev); if (ret < 0) - goto error_async; + goto error_subdev; dev_info(priv->dev, "%d lanes found\n", priv->lanes); return 0; +error_subdev: + v4l2_subdev_cleanup(&priv->subdev); +error_pm_runtime: + pm_runtime_disable(&pdev->dev); error_async: v4l2_async_nf_unregister(&priv->notifier); v4l2_async_nf_cleanup(&priv->notifier); @@ -1936,6 +2005,7 @@ static void rcsi2_remove(struct platform_device *pdev) v4l2_async_nf_unregister(&priv->notifier); v4l2_async_nf_cleanup(&priv->notifier); v4l2_async_unregister_subdev(&priv->subdev); + v4l2_subdev_cleanup(&priv->subdev); pm_runtime_disable(&pdev->dev);
Create and initialize the v4l2_subdev_state for the R-Car CSI-2 receiver in order to prepare to support multiplexed transmitters. Create the subdevice state with v4l2_subdev_init_finalize() and implement the init_state() operation to guarantee the state is initialized. The routing table within the R-Car CSI-2 receiver is fixed, streams received on source_stream X will be directed to pad (X + 1) by default. Initialize a static routing table with such routes set as active. While at it, disable runtime_pm() in the probe() function error path. Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> --- drivers/media/platform/renesas/rcar-csi2.c | 74 +++++++++++++++++++++- 1 file changed, 72 insertions(+), 2 deletions(-)