kernel.git/drivers/media/platform/stm32, branch linux-5.0.y

media: stm32-dcmi: fix crash when subdev do not expose any formats

2019-05-31T13:45:02Z

[ Upstream commit 33dfeb62e23c31619d2197850f7e8b50e8cc5466 ] Do not access sd_formats[] if num_of_sd_formats is zero, ie subdev sensor didn't expose any formats. Signed-off-by: Hugues Fruchet Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin

media: stm32-dcmi: return appropriate error codes during probe

2019-05-31T13:44:55Z

[ Upstream commit b5b5a27bee5884860798ffd0f08e611a3942064b ] During probe, return the provided errors value instead of -ENODEV. This allows the driver to be deferred probed if needed. Signed-off-by: Fabien Dessenne Acked-by: Hugues Fruchet Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin

media: v4l: fwnode: Initialise the V4L2 fwnode endpoints to zero

2018-10-04T20:21:02Z

Initialise the V4L2 fwnode endpoints to zero in all drivers using v4l2_fwnode_endpoint_parse(). This prepares for setting default endpoint flags as well as the bus type. Setting bus type to zero will continue to guess the bus among the guessable set (parallel, Bt.656 and CSI-2 D-PHY). Signed-off-by: Sakari Ailus Tested-by: Steve Longerbeam Tested-by: Jacopo Mondi Signed-off-by: Mauro Carvalho Chehab

media: v4l: mediabus: Recognise CSI-2 D-PHY and C-PHY

2018-10-04T20:06:15Z

The CSI-2 bus may use either D-PHY or C-PHY. Make this visible in media bus enum. Signed-off-by: Sakari Ailus Tested-by: Steve Longerbeam Tested-by: Jacopo Mondi Signed-off-by: Mauro Carvalho Chehab

media: platform: Switch to v4l2_async_notifier_add_subdev

2018-10-04T19:55:38Z

Switch all media platform drivers to call v4l2_async_notifier_add_subdev() to add asd's to a notifier, in place of referencing the notifier->subdevs[] array. These drivers also must now call v4l2_async_notifier_init() before adding asd's to their notifiers. There may still be cases where a platform driver maintains a list of asd's that is a duplicate of the notifier asd_list, in which case its possible the platform driver list can be removed, and can reference the notifier asd_list instead. One example of where a duplicate list has been removed in this patch is xilinx-vipp.c. If there are such cases remaining, those drivers should be optimized to remove the duplicate platform driver asd lists. None of the changes to the platform drivers in this patch have been tested. Verify that the async subdevices needed by the platform are bound at load time, and that the driver unloads and reloads correctly with no memory leaking of asd objects. Suggested-by: Sakari Ailus Signed-off-by: Steve Longerbeam Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: stm32-dcmi: only enable IT frame on JPEG capture

2018-10-04T18:29:43Z

Only enable IT frame on JPEG capture, this saves some CPU interruptions and processing on all the other cases. Signed-off-by: Hugues Fruchet Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: use strscpy() instead of strlcpy()

2018-09-11T17:32:17Z

The implementation of strscpy() is more robust and safer. That's now the recommended way to copy NUL terminated strings. Signed-off-by: Mauro Carvalho Chehab Reviewed-by: Kees Cook Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: stm32-dcmi: add power saving support

2018-06-28T11:49:56Z

Implements runtime & system sleep power management ops. Signed-off-by: Hugues Fruchet Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: stm32-dcmi: simplify of_node_put usage

2018-06-28T11:49:29Z

This does not fix any bug - this is just a code simplification. As np is not used after passing it to v4l2_fwnode_endpoint_parse() its refcount can be decremented immediately and at one location. Signed-off-by: Nicholas Mc Guire Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: stm32-dcmi: add mandatory of_node_put() in success path

2018-06-28T11:49:06Z

The endpoint allocated by of_graph_get_next_endpoint() needs an of_node_put() in both error and success path. As ep is not used the refcount decrement can be right after the last use of ep. Fixes: commit 37404f91ef8b ("[media] stm32-dcmi: STM32 DCMI camera interface driver") Signed-off-by: Nicholas Mc Guire Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab