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928a6ea4 |
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09-Oct-2022 |
Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> |
media: rcar-vin: Add support for Gen3 UDS (Up Down Scaler) Add support for the UDS (Up Down Scaler) found in some Gen3 SoCs. Not all Gen3 SoCs have scalers, and for those that do it's only available to the master node of each VIN group. The setup for which SoCs and nodes have access to a scaler are dealt with at probe time and then function transparently reusing the schema from the already present Gen2 scaler. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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3ad69c61 |
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09-Oct-2022 |
Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> |
media: rcar-vin: Store scaler in a function pointer The scaler implementation is different between the VIN generations, and not all SoCs have a scaler. Currently only Gen2 scalers are supported. Prepare to add support for more scalers by storing the setup in a function pointer initialized at probe time. While at it move call site to after, instead of before, the generic capture setup, this have no effect on the Gen2 scaler but will be leveraged by the Gen3 scaler. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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f42a3232 |
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09-Oct-2022 |
Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> |
media: rcar-vin: Do not cache remote rectangle Prepare for scaling support in the media controller part of the driver by not caching the remote rectangle. Mimic the omap3isp and look it up each time it's needed. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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b2e44430 |
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25-Jun-2022 |
Laurent Pinchart <laurent.pinchart@ideasonboard.com> |
media: mc-entity: Rename media_entity_remote_pad() to media_pad_remote_pad_first() The media_entity_remote_pad() is misnamed, as it operates on a pad and not an entity. Rename it to media_pad_remote_pad_first() to clarify its behaviour. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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ed647ea6 |
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12-Apr-2022 |
Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> |
media: subdev: add subdev state locking The V4L2 subdevs have managed without centralized locking for the state (previously pad_config), as the try-state is supposedly safe (although I believe two TRY ioctls for the same fd would race), and the active-state, and its locking, is managed by the drivers internally. We now have active-state in a centralized position, and need locking. Strictly speaking the locking is only needed for new drivers that use the new state, as the current drivers continue behaving as they used to. However, active-state locking is complicated by the fact that currently the real active-state of a subdev is split into multiple parts: the new v4l2_subdev_state, subdev control state, and subdev's internal state. In the future all these three states should be combined into one state (the v4l2_subdev_state), and then a single lock for the state should be sufficient. But to solve the current split-state situation we need to share locks between the three states. This is accomplished by using the same lock management as the control handler does: we use a pointer to a mutex, allowing the driver to override the default mutex. Thus the driver can do e.g.: sd->state_lock = sd->ctrl_handler->lock; before calling v4l2_subdev_init_finalize(), resulting in sharing the same lock between the states and the controls. The locking model for active-state is such that any subdev op that gets the state as a parameter expects the state to be already locked by the caller, and expects the caller to release the lock. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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40aaab9d |
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12-Apr-2022 |
Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> |
media: subdev: rename subdev-state alloc & free v4l2_subdev_alloc_state() and v4l2_subdev_free_state() are not supposed to be used by the drivers. However, we do have a few drivers that use those at the moment, so we need to expose these functions for the time being. Prefix the functions with __ to mark the functions as internal. At the same time, rename them to v4l2_subdev_state_alloc and v4l2_subdev_state_free to match the style used for other functions like video_device_alloc() and media_request_alloc(). Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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f2d8b691 |
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22-Jan-2022 |
Sakari Ailus <sakari.ailus@linux.intel.com> |
media: v4l: ioctl: Set bus_info in v4l_querycap() The bus_info field is set by most drivers based on the type of the device bus as well as the name of the device. Do this in v4l_querycap() so drivers don't need to. This keeps compatibility with non-default and silly bus_info. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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ee4a77a3 |
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10-Mar-2022 |
Mauro Carvalho Chehab <mchehab@kernel.org> |
media: platform: place Renesas drivers on a separate dir In order to cleanup the main platform media directory, move Renesas driver to its own directory. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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