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author | Jacopo Mondi <jacopo+renesas@jmondi.org> | 2020-07-17 16:53:18 +0200 |
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committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-08-18 15:44:53 +0200 |
commit | ebb965acddac401bab2743ac917f5097a56dd542 (patch) | |
tree | 6b2385e1caa07146267aebb2084bd604c18a7922 /include | |
parent | 2d26e440984c39eb414581d693532010a3856664 (diff) | |
download | linux-ebb965acddac401bab2743ac917f5097a56dd542.tar.bz2 |
media: pxa_camera: Use the new set_mbus_config op
Move the PXA camera driver to use the new set_mbus_config pad operation.
For this platform the change is not only cosmetic, as the pxa driver is
currently the only driver in mainline to make use of the g_mbus_config
and s_mbus_config video operations.
The existing driver semantic is the following:
- Collect all supported mbus config flags from the remote end
- Match them with the supported PXA mbus configuration flags
- If the remote subdevice allows multiple options for for VSYNC, HSYNC
and PCLK polarity, use platform data requested settings
The semantic of the new get_mbus_config and set_mbus_config differs from
the corresponding video ops, particularly in the fact get_mbus_config
reports the current mbus configuration and not the set of supported
configuration options, with set_mbus_config always reporting the actual
mbus configuration applied to the remote subdevice.
Adapt the driver to perform the following
- Set the remote subdevice mbus configuration according to the PXA
platform data preferences.
- If the applied configuration differs from the requested one (i.e. the
remote subdevice does not allow changing one setting) make sure that
- The remote end does not claim for DATA_ACTIVE_LOW, which seems not
supported by the platform
- The bus mastering roles match
While at there remove a few checks performed on the media bus
configuration at get_format() time as they do not belong there.
Compile-tested only.
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions