- 27 Sep, 2023 40 commits
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Laurent Pinchart authored
The sensor is guaranteed not to be streaming when the runtime PM resume handler is called, as the resume handler is only called from the .s_stream() operation when starting streaming. Similarly, the sensor has been stopped when the runtime PM suspend handler is called. There is thus no need for manual stream start/stop from the runtime PM handlers. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
Ricardo Ribalda <ribalda@chromium.org> Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. Now that the runtime PM operations are not called from the system PM handlers, the sensor is guaranteed not to be streaming when the runtime PM resume handler is called, and to have been stopped already when the runtime PM suspend handler is called. Drop the manual stream start/stop from the runtime PM handlers. Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. Signed-off-by:
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Laurent Pinchart authored
Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
Krzysztof Hałasa <khalasa@piap.pl> Signed-off-by:
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Laurent Pinchart authored
Camera sensor drivers are highly subject to cargo cult programming, with back practices being copied from old to new drivers. In particular, many drivers implement system and runtime PM incorrectly. As a first step towards fixing this situation, refactor and expand the power management documentation to detail correct usage of system and runtime PM. Signed-off-by:
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Laurent Pinchart authored
Move the power management section up, just after clocks, as it relates to internal system resources and not features exposed to applications. The text itself is otherwise unchanged. Signed-off-by:
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Laurent Pinchart authored
The Documentation/devicetree/bindings/clock/clock-bindings.txt file is deprecated and points to clock-bindings.yaml, which is not hosted in the kernel source tree. Use an HTTPS link to refer to the YAML binding document. While at it, drop "currently" from the paragraph, as the whole file refers to the current recommended practices except where explicitly noted. Signed-off-by:
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Laurent Pinchart authored
Drop an unneeded double colon, and use 'shall' instead of 'must' for consistency with the rest of the file. Signed-off-by:
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Laurent Pinchart authored
The subdev .s_stream() operation shall not be called to start streaming on an already started subdev, or stop streaming on a stopped subdev. Remove the check that guards against that condition. Signed-off-by:
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Laurent Pinchart authored
The subdev .s_stream() operation shall not be called to start streaming on an already started subdev, or stop streaming on a stopped subdev. Remove the check that guards against that condition. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
The subdev .s_stream() operation shall not be called to start streaming on an already started subdev, or stop streaming on a stopped subdev. Remove the check that guards against that condition. Signed-off-by:
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Laurent Pinchart authored
The subdev .s_stream() operation shall not be called to start streaming on an already started subdev, or stop streaming on a stopped subdev. Remove the check that guards against that condition. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
The subdev .s_stream() operation shall not be called to start streaming on an already started subdev, or stop streaming on a stopped subdev. Remove the check that guards against that condition. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
The subdev .s_stream() operation shall not be called to start streaming on an already started subdev, or stop streaming on a stopped subdev. Remove the check that guards against that condition. Signed-off-by:
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Laurent Pinchart authored
The subdev .s_stream() operation shall not be called to start streaming on an already started subdev, or stop streaming on a stopped subdev. Remove the check that guards against that condition. Signed-off-by:
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Laurent Pinchart authored
The subdev .s_stream() operation shall not be called to start streaming on an already started subdev, or stop streaming on a stopped subdev. Remove the check that guards against that condition. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
The subdev .s_stream() operation shall not be called to start streaming on an already started subdev, or stop streaming on a stopped subdev. Remove the check that guards against that condition. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
Mikhail Rudenko <mike.rudenko@gmail.com> [Sakari Ailus: remove now-redundant "streaming" from comment.] Signed-off-by:
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Laurent Pinchart authored
The subdev .s_stream() operation shall not be called to start streaming on an already started subdev, or stop streaming on a stopped subdev. Remove the check that guards against that condition. Signed-off-by:
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Laurent Pinchart authored
The subdev .s_stream() operation shall not be called to start streaming on an already started subdev, or stop streaming on a stopped subdev. Remove the check that guards against that condition. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by:
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Laurent Pinchart authored
The subdev .s_stream() operation shall not be called to start streaming on an already started subdev, or stop streaming on a stopped subdev. Remove the check that guards against that condition. Signed-off-by:
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Laurent Pinchart authored
The subdev .s_stream() operation shall not be called to start streaming on an already started subdev, or stop streaming on a stopped subdev. Remove the check that guards against that condition. Signed-off-by:
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Laurent Pinchart authored
The subdev .s_stream() operation shall not be called to start streaming on an already started subdev, or stop streaming on a stopped subdev. Remove the check that guards against that condition. Signed-off-by:
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Laurent Pinchart authored
The subdev .s_stream() operation shall not be called to start streaming on an already started subdev, or stop streaming on a stopped subdev. Remove the check that guards against that condition. Signed-off-by:
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Laurent Pinchart authored
The subdev .s_stream() operation shall not be called to start streaming on an already started subdev, or stop streaming on a stopped subdev. Remove the check that guards against that condition. Signed-off-by:
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