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Connect the CSI receiver subdevice between the sensors and the ISP. This
includes:
- Calling the subdevice via the v4l2 subdev API
- Moving the async notifier for the sensor from the ISP to the CSI
receiver
- In the ISP, create a media link to the CSI receiver, and remove the
media link creation to the sensor
- In the CSI receiver, create a media link to the sensor
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Dafna Hirschfeld <dafna@fastmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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The CSI receiver is a component separate from the ISP or the resizers.
It is actually optional, not all device model include a CSI receiver. On
some SoCs CSI-2 support can be provided through an external CSI-2
receiver, connected to the ISP's parallel input.
To support those use cases, create a V4L2 subdev to model the CSI
receiver. It will allow the driver to handle both internal and external
CSI receivers the same way.
The next commit will plumb the CSI subdev to the rest of the driver,
replacing direct function calls.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Dafna Hirschfeld <dafna@fastmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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The sensor argument to rkisp1_csi_start() isn't meant to be modified by
the function. Make it const.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Dafna Hirschfeld <dafna@fastmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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The CSI-related functions are not named consistently. Fix it by using a
common rkisp1_csi prefix.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Dafna Hirschfeld <dafna@fastmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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The ISP layer now calls multiple functions of the CSI-2 RX layer to
configure, start and stop it, with the steps for the last two
operations. Move those calls to rkisp1_mipi_csi2_start() and
rkisp1_mipi_csi2_stop() to simplify the ISP code and the API exposed by
the CSI-2 receiver component.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Dafna Hirschfeld <dafna@fastmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Not all ISP instances include a MIPI CSI-2 receiver. To prepare for
making it optional, move code related to the CSI-2 receiver to a
separate file.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Dafna Hirschfeld <dafna@fastmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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