media: imx: mipi csi-2: Don't fail if initial state times-out

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Not all sensors will be able to guarantee a proper initial state.
This may be either because the driver is not properly written,
or (probably unlikely) because the hardware won't support it.

While the right solution in the former case is to fix the sensor
driver, the real world not always allows right solutions, due to lack
of available documentation and support on these sensors.

Let's relax this requirement, and allow the driver to support stream start,
even if the sensor initial sequence wasn't the expected.

Also improve the warning message to better explain the problem and provide
a hint that the sensor driver needs to be fixed.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

...

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Ezequiel Garcia 2019-06-27 19:29:12 -03:00 • committed by Mauro Carvalho Chehab

parent 9bf656e1a6

commit 0d5078c717

1 changed files with 4 additions and 8 deletions

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drivers/staging/media/imx/imx6-mipi-csi2.c

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