kernel/linux.git/drivers/staging/media, branch master

staging: media: ipu7: Update TODO

2026-03-26T13:33:07+00:00

Remove cleanup of the register definitions from the TODO file. Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil

media: staging: imx: configure src_mux in csi_start

2026-03-25T17:42:18+00:00

After media_pipeline_start() was called, the media graph is assumed to be validated. It won't be validated again if a second stream starts. The imx-media-csi driver, however, changes hardware configuration in the link_validate() callback. This can result in started streams with misconfigured hardware. In the concrete example, the ipu2_csi1 is driven by a parallel video input. After the media pipeline has been started with this configuration, a second stream is configured to use ipu1_csi0 with MIPI-CSI input from imx6-mipi-csi2. This may require the reconfiguration of ipu1_csi0 with ipu_set_csi_src_mux(). Since the media pipeline is already running, link_validate won't be called, and the ipu1_csi0 won't be reconfigured. The resulting video is broken, because the ipu1_csi0 is misconfigured, but no error is reported. Move ipu_set_csi_src_mux from csi_link_validate to csi_start to ensure that input to ipu1_csi0 is configured correctly when starting the stream. This is a local reconfiguration in ipu1_csi0 and is possible while the media pipeline is running. Since csi_start() is called with priv->lock already locked, csi_set_src() must not lock priv->lock again. Thus, the mutex_lock() is dropped. Signed-off-by: Michael Tretter Fixes: 4a34ec8e470c ("[media] media: imx: Add CSI subdev driver") Cc: stable@vger.kernel.org Reviewed-by: Frank Li Reviewed-by: Philipp Zabel Signed-off-by: Frank Li Signed-off-by: Hans Verkuil

media: staging: imx: request mbus_config in csi_start

2026-03-25T17:42:18+00:00

Request the upstream mbus_config in csi_start, which starts the stream, instead of caching it in link_validate. This allows to get rid of the mbus_cfg field in the struct csi_priv and avoids state in the driver. Fixes: 4a34ec8e470c ("[media] media: imx: Add CSI subdev driver") Cc: stable@vger.kernel.org Reviewed-by: Frank Li Signed-off-by: Michael Tretter Reviewed-by: Philipp Zabel Signed-off-by: Frank Li Signed-off-by: Hans Verkuil

media: staging: imx: fix code style issues

2026-03-25T17:42:18+00:00

Applied checkpatch.pl recommendations: - corrected whitespace - fixed line length - adjusted indentation Signed-off-by: vivek yadav Signed-off-by: Frank Li Signed-off-by: Hans Verkuil

media: staging: imx: Remove unnecessary braces from if statement

2026-03-25T17:42:18+00:00

Adhering to Linux kernel coding style guidelines (Chapter 3: Indentation). Signed-off-by: Ayush Kumar Reviewed-by: Frank Li Signed-off-by: Frank Li Signed-off-by: Hans Verkuil

staging: media: tegra-video: add CSI support for Tegra20 and Tegra30

2026-03-19T07:18:36+00:00

Add support for MIPI CSI device and calibration logic found in Tegra20 and Tegra30 SoC. To get CSI operational, an additional syncpoint was allocated to serve as the CSI frame counter. Both VIP and CSI use an existing syncpoint for VI frame start events. That said, the frame capture function was refactored to reflect the addition of the CSI syncpoint, and the CSI-specific configuration is guarded by the presence of a passed CSI channel structure pointer. The camera capture setup's configuration was reconsidered: the first two writes must be done before tegra_channel_set_stream for MIPI calibration to work properly; the third write was moved to VIP/CSI-specific functions since it must be source-specific; the function was placed after tegra_channel_set_stream so the initial sequence is preserved and expanded. CSI configuration sequences were added based on downstream 3.1 kernel sources and adjusted to the existing video-tegra framework. Although Tegra20 and Tegra30 have the same set of configurations, they differ by the number of clocks used by CSI. Dropped the software syncpoint counters in favor of reading syncpoints directly and passing the incremented value to the polling function. If the syncpoint increase fails, the PP is reset. This change should prevent possible race conditions. MIPI calibration logic was registered in CSI since Tegra20 and Tegra30 have no dedicated hardware block for these operations and use CSI. These calls are used for both CSI and DSI to work properly, which is why MIPI calibration cannot be contained within CSI. The pads passed to the calibration calls resemble CSI PORT_A (0), CSI PORT_B (1), DSI-A (3) and DSI-B (4). Tested-by: Luca Ceresoli # tegra20, parallel camera Co-developed-by: Jonas Schwöbel Signed-off-by: Jonas Schwöbel Signed-off-by: Svyatoslav Ryhel Reviewed-by: Mikko Perttunen Signed-off-by: Hans Verkuil

staging: media: tegra-video: tegra20: adjust luma buffer stride

2026-03-19T07:18:36+00:00

Luma buffer stride is calculated by multiplying height in pixels of image by bytes per line. Adjust that value accordingly. Tested-by: Luca Ceresoli # tegra20, parallel camera Signed-off-by: Svyatoslav Ryhel Reviewed-by: Mikko Perttunen Signed-off-by: Hans Verkuil

staging: media: tegra-video: tegra20: expand format support with RAW8/10 and YUV422/YUV420p 1X16

2026-03-19T07:18:36+00:00

Add support for Bayer formats (RAW8 and RAW10) and YUV422/420p 1X16 versions of existing YUV422/YUV420p 2X8. Tested-by: Luca Ceresoli # tegra20, parallel camera Signed-off-by: Svyatoslav Ryhel Reviewed-by: Mikko Perttunen Signed-off-by: Hans Verkuil

staging: media: tegra-video: tegra20: increase maximum VI clock frequency

2026-03-19T07:18:36+00:00

Increase maximum VI clock frequency to 450MHz to allow correct work with high resolution camera sensors. Tested-by: Luca Ceresoli # tegra20, parallel camera Signed-off-by: Svyatoslav Ryhel Reviewed-by: Mikko Perttunen Signed-off-by: Hans Verkuil

staging: media: tegra-video: tegra20: set VI HW revision

2026-03-19T07:18:36+00:00

According to TRM Tegra20, Tegra30 and Tegra114 have VI revision 1, Tegra124 has revision 2 and Tegra210 has revision 3. Set correct revision in tegra20_vi_soc like tegra210 does. Tested-by: Luca Ceresoli # tegra20, parallel camera Signed-off-by: Svyatoslav Ryhel Signed-off-by: Hans Verkuil