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authorSakari Ailus <sakari.ailus@linux.intel.com>2021-02-01 10:16:03 +0100
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>2021-08-04 14:43:50 +0200
commitb9a543364299e09ba236c69acb021ebbf7cebf1a (patch)
treec1bf41a74d88b37c9609ea0bae82442ce5eb2468 /Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst
parent0368e7d2cd84a90d0518753fac33795e13df553f (diff)
media: Documentation: media: Improve camera sensor documentation
Modernise the documentation to make it more precise and update the use of pixel rate control and various other changes. In particular: - Use non-proportional font for file names, properties as well as controls. - The unit of the HBLANK control is pixels, not lines. - The unit of PIXEL_RATE control is pixels per second, not Hz. - Merge common requirements for CSI-2 and parallel busses. - Include all DT properties needed for assigned clocks. - Fix referencing the link rate control. - SMIA driver's new name is CCS driver. - The PIXEL_RATE control denotes pixel rate on the pixel array on camera sensors. Do not suggest it is used to tell the maximum pixel rate on the bus anymore. - Improve ReST syntax (plain struct and function names). - Remove the suggestion to use s_power() in receiver drivers. - Make MIPI website URL use HTTPS, add Wikipedia links to BT.601 and BT.656. Fixes: e4cf8c58af75 ("media: Documentation: media: Document how to write camera sensor drivers") Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Andrey Konovalov <andrey.konovalov@linaro.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst')
-rw-r--r--Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst
index 87698c15c027..37dad2f4df8c 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst
@@ -20,6 +20,8 @@ Image Process Control IDs
``V4L2_CID_IMAGE_PROC_CLASS (class)``
The IMAGE_PROC class descriptor.
+.. _v4l2-cid-link-freq:
+
``V4L2_CID_LINK_FREQ (integer menu)``
Data bus frequency. Together with the media bus pixel code, bus type
(clock cycles per sample), the data bus frequency defines the pixel

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