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linux/include/media
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Jai Luthra 7b78fa8622 media: cadence: cdns-csi2rx: Support multiple pixels per clock cycle 
The output pixel interface is a parallel bus (32 bits), which
supports sending multiple pixels (1, 2 or 4) per clock cycle for
smaller pixel widths like RAW8-RAW16.

Dual-pixel and Quad-pixel modes can be a requirement if the export rate
of the Cadence IP in Single-pixel mode maxes out before the maximum
supported DPHY-RX frequency, which is the case with TI's integration of
this IP [1].

So, we export a function that lets the downstream hardware block request
a higher pixel-per-clock on a particular output pad.

We check if we can support the requested pixels per clock given the
known maximum for the currently configured format. If not, we set it
to the highest feasible value and return this value to the caller.

[1] Section 12.6.1.4.8.14 CSI_RX_IF Programming Restrictions of AM62 TRM

Link: https://www.ti.com/lit/pdf/spruj16
Tested-by: Yemike Abhilash Chandra <y-abhilashchandra@ti.com> (on SK-AM68)
Signed-off-by: Jai Luthra <jai.luthra@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-08-25 15:40:42 +02:00
..
cadence media: cadence: cdns-csi2rx: Support multiple pixels per clock cycle 2025-08-25 15:40:42 +02:00
davinci media: v4l: async: Rename v4l2_async_subdev as v4l2_async_connection 2023-07-28 10:44:25 +02:00
drv-intf media: saa7146: convert to vb2 2023-04-15 08:53:31 +01:00
i2c media: replace obsolete hans.verkuil@cisco.com alias 2024-11-08 13:38:09 +01:00
tpg media: v4l2-tpg: add HDMI Video Guard Band test pattern 2022-06-20 10:30:30 +01:00
cec-notifier.h Update rmk's email address in various drivers 2020-04-21 17:50:09 +01:00
cec-pin.h media: cec-gpio: handle gpiod_get_value errors correctly 2020-04-29 12:04:38 +02:00
cec.h media: cec: include linux/debugfs.h and linux/seq_file.h where needed 2025-01-07 12:21:38 +01:00
demux.h media: dvb: update buffer mmaped flags and frame counter 2018-02-23 11:44:08 -05:00
dmxdev.h media: dmxdev: drop unneeded <linux/kernel.h> inclusion from other headers 2021-12-14 16:19:04 +01:00
dvb-usb-ids.h media: dvb-usb: dib0700_devices: use an enum for the device number 2022-04-18 07:36:44 +02:00
dvb_ca_en50221.h media: move dvb kAPI headers to include/media 2017-12-28 13:16:01 -05:00
dvb_demux.h media: dvb: update buffer mmaped flags and frame counter 2018-02-23 11:44:08 -05:00
dvb_frontend.h Revert "media: dvb-core: Fix use-after-free on race condition at dvb_frontend" 2023-06-14 23:16:29 +01:00
dvb_net.h media: dvb-core: Fix use-after-free due on race condition at dvb_net 2023-05-14 06:30:45 +01:00
dvb_ringbuffer.h media: dvb_ringbuffer: Fix typo in dvb_ringbuffer_pkt_write() kerneldoc 2022-11-25 09:45:47 +00:00
dvb_vb2.h media: dvb: update buffer mmaped flags and frame counter 2018-02-23 11:44:08 -05:00
dvbdev.h media: dvbdev.h: do some kernel-doc cleanups 2023-05-14 16:05:27 +01:00
frame_vector.h media: videobuf2: revert "get_userptr: buffers are always writable" 2022-12-06 07:14:31 +00:00
imx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ipu-bridge.h media: ipu-bridge: add mod_devicetable.h header inclusion 2024-06-04 08:31:22 +02:00
ipu6-pci-table.h media: ipu6: Add PCI device table header 2024-04-29 14:56:37 +02:00
jpeg.h media: Add common header file with JPEG marker definitions 2023-05-25 16:21:21 +02:00
media-dev-allocator.h media: Fix Media Controller API config checks 2021-06-24 14:26:00 +02:00
media-device.h media: mc: Add nop implementations of media_device_{init,cleanup} 2024-04-10 15:15:30 +02:00
media-devnode.h media: media-devnode.h: drop duplicated word in comment 2020-07-19 14:00:12 +02:00
media-entity.h media: mc: Rename pad as origin in __media_pipeline_start() 2024-11-07 09:05:58 +01:00
media-request.h media: replace obsolete hans.verkuil@cisco.com alias 2024-11-08 13:38:09 +01:00
mipi-csi2.h media: Add MIPI CSI-2 generic long packet type definition 2023-10-07 10:55:48 +02:00
rc-core.h media: rc: reduce useless padding in struct rc_dev etc 2025-03-04 15:56:11 +01:00
rc-map.h media: rc: add keymap for Siemens Gigaset RC20 remote 2025-02-13 12:12:31 +01:00
rcar-fcp.h media: rcar-fcp: Add rcar_fcp_soft_reset() 2025-06-18 09:20:45 +02:00
tuner-types.h media: tuners: Constify struct tunertype, tuner_range and tuner_params 2025-02-21 10:33:15 +01:00
tuner.h media: tuner-simple: Add support for Tena TNF931D-DFDR1 2024-06-29 12:20:05 +02:00
tveeprom.h media: drop unnecessary networking includes 2023-03-19 22:50:06 +01:00
v4l2-async.h media: v4l: async: Set owner for async sub-devices 2024-04-26 11:31:19 +01:00
v4l2-cci.h media: v4l2-cci: Add support for little-endian encoded registers 2023-12-13 13:21:19 +01:00
v4l2-common.h media: v4l2-common: Update v4l2_get_link_freq() documentation 2025-08-25 15:40:41 +02:00
v4l2-ctrls.h media: v4l2-core: Rename second ioctl handlers argument to 'void *priv' 2025-08-13 08:33:59 +02:00
v4l2-dev.h media: Drop V4L2_FL_USES_V4L2_FH checks 2025-08-13 08:33:46 +02:00
v4l2-device.h media: v4l: Set sub-device's owner field to the caller's module 2024-04-26 11:30:43 +01:00
v4l2-dv-timings.h media: v4l2-dv-timings: add v4l2_num_edid_blocks() helper 2025-02-18 08:11:37 +01:00
v4l2-event.h media: v4l2-event: Annotate struct v4l2_subscribed_event with __counted_by 2023-10-07 10:55:45 +02:00
v4l2-fh.h media: Drop V4L2_FL_USES_V4L2_FH checks 2025-08-13 08:33:46 +02:00
v4l2-flash-led-class.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
v4l2-fwnode.h media: v4l: fwnode: Remove unneeded forward declaration 2023-07-28 10:34:26 +02:00
v4l2-h264.h media: h264: Sort p/b reflist using frame_num 2022-05-17 10:02:29 +02:00
v4l2-image-sizes.h media: v4l2-image-sizes: add HD and Full-HD definitions 2020-04-21 17:21:51 +02:00
v4l2-ioctl.h media: v4l2-ioctl: Stop passing fh pointer to ioctl handlers 2025-08-13 08:33:56 +02:00
v4l2-jpeg.h media: v4l2-jpeg: Remove unused v4l2_jpeg_parse_* wrappers 2025-06-17 10:35:17 +02:00
v4l2-mc.h media: v4l2-mc: Mark v4l2_pipeline_link_notify() as deprecated 2024-08-23 17:49:09 +03:00
v4l2-mediabus.h media: v4l: Support obtaining link frequency via get_mbus_config 2025-02-15 15:22:53 +01:00
v4l2-mem2mem.h media: v4l2-core: Rename second ioctl handlers argument to 'void *priv' 2025-08-13 08:33:59 +02:00
v4l2-rect.h media: v4l2-rect.h: add enclosed rectangle helper 2020-07-04 12:29:38 +02:00
v4l2-subdev.h media: v4l2-subdev: Fix alloc failure check in v4l2_subdev_call_state_try() 2025-08-25 15:40:40 +02:00
v4l2-vp9.h media: Add VP9 v4l2 library 2021-11-22 07:47:13 +00:00
videobuf2-core.h media: videobuf2-core: attach once if multiple planes share the same dbuf 2024-08-14 10:05:32 +02:00
videobuf2-dma-contig.h media: videobuf2-dma-contig: fix bad kfree in vb2_dma_contig_clear_max_seg_size 2020-06-11 19:20:55 +02:00
videobuf2-dma-sg.h media: Change Andrzej Pietrasiewicz's e-mail address 2019-01-16 11:21:07 -05:00
videobuf2-dvb.h media: vb2: videobuf -> videobuf2 2022-08-29 15:38:09 +02:00
videobuf2-memops.h media: videobuf2: revert "get_userptr: buffers are always writable" 2022-12-06 07:14:31 +00:00
videobuf2-v4l2.h media: v4l2: Add REMOVE_BUFS ioctl 2024-03-25 12:00:44 +01:00
videobuf2-vmalloc.h [media] media: videobuf2: Replace videobuf2-core with videobuf2-v4l2 2015-10-01 08:48:18 -03:00
vsp1.h media: vsp1: Add VSPX support 2025-06-18 09:20:47 +02:00