Commit Graph

4 Commits

Author SHA1 Message Date
Rui Miguel Silva
c45fbdf24c media: ov2680: fix null dereference at power on
Swapping the order between v4l2 subdevice registration and checking chip
id in b7a417628a ("media: ov2680: don't register the v4l2 subdevice
before checking chip ID") makes the mode restore to use the sensor
controls before they are set, so move the mode restore call to s_power
after the handler setup for controls is done.

This remove also the need for the error code path in power on function.

Fixes: b7a417628a ("media: ov2680: don't register the v4l2 subdevice before checking chip ID")

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-23 05:16:29 -05:00
Javier Martinez Canillas
e7f4861dad media: ov2680: rename ov2680_v4l2_init() to ov2680_v4l2_register()
The function not only does initialization but also registers the subdevice
so change its name to make this more clear.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-17 15:19:59 -04:00
Javier Martinez Canillas
b7a417628a media: ov2680: don't register the v4l2 subdevice before checking chip ID
The driver registers the v4l2 subdevice before attempting to power on the
chip and checking its ID. This means that a media device driver that it's
waiting for this subdevice to be bound, will prematurely expose its media
device node to userspace because if something goes wrong the media entity
will be cleaned up again on the ov2680 probe function.

This also simplifies the probe function error path since no initialization
is made before attempting to enable the resources or checking the chip ID.

Fixes: 3ee47cad3e ("media: ov2680: Add Omnivision OV2680 sensor driver")

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-17 15:19:40 -04:00
Rui Miguel Silva
3ee47cad3e media: ov2680: Add Omnivision OV2680 sensor driver
This patch adds V4L2 sub-device driver for OV2680 image sensor.
The OV2680 is a 1/5" CMOS color sensor from Omnivision.
Supports output format: 10-bit Raw RGB.
The OV2680 has a single lane MIPI interface.

The driver exposes following V4L2 controls:
- auto/manual exposure,
- exposure,
- auto/manual gain,
- gain,
- horizontal/vertical flip,
- test pattern menu.
Supported resolution are only: QUXGA, 720P, UXGA.

[Sakari Ailus: Drop "-level" from Kconfig help text]

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27 12:40:48 -04:00