On Tue, 2023-03-14 at 17:25 +0530, Vaishnav Achath wrote: > Hi, > > This series adds support for CSI2 capture on J721E. It includes some > fixes to the Cadence CSI2RX driver, and adds the TI CSI2RX wrapper > driver. > > This is a V7 of the below V6 series, > https://lore.kernel.org/all/20220121142904.4091481-1-p.yadav@xxxxxx/ > > Since Pratyush moved out of TI, I will be working on upstreaming the > TI CSI2RX wrapper support. > > Tested on TI's J721E EVM with LI OV5640 sensor module. > https://gist.github.com/vaishnavachath/f030a257d5b6569817bc9deab1c4fa77 > > Also, Tested on TI AM62-SK with Pcam5C OV5640 module. > https://gist.github.com/vaishnavachath/ff2605faa92f1a6ab5670426da28ccee > Hi Vaishnav, I assume I'm doing something wrong. I have a TI AM62-SK and the Pcam5C OV5640 module. I've been trying to test this with gstreamer using the following command: gst-launch-1.0 -v v4l2src device=/dev/video0 num-buffers=10 ! video/x- raw, width=640, height=480, format=UYVY, framerate=30/1 ! jpegenc ! multifilesink location=test%d.jpg However I've not been able to get this working, failing with this failure unless I patch in some changes I found in the TI BSP: [ 28.083635] cdns-mipi-dphy-rx 30110000.phy: DPHY wait for lane ready timeout [ 28.090905] cdns-csi2rx 30101000.csi-bridge: Failed to configure external DPHY: -110 The changes (and the device tree nodes I added, which might be wrong...) can be found here: https://gitlab.collabora.com/martyn/linux/-/commits/am625-sk-ov5640 Any ideas what I'm doing wrong? Martyn > For all newer TI platforms that TI J721E Silicon Revision 1.0, below > update > to DPHY RX driver is needed: > https://lore.kernel.org/all/20230314073137.2153-1-vaishnav.a@xxxxxx/ > > Changes in v7: > - For patch 10/13 ("Add CSI2RX upport for J721E"): > - Fix incorrect value written in SHIM_PSI_CFG0_DST_TAG > - Drop support for 2X8 formats. > - Update maintainer to Vaishnav as Pratyush moved out of TI. > - Address Sakari's review comments: > - Update MAX_HEIGHT_LINES, MAX_WIDTH_BYTES to prevent overflow. > - Assign dma_slave_config during declaration, drop memset(). > - dma_release_channel() on slave_config failure. > - provide entity ops for the vdev entity with link_validate(). > - mutex_destroy() on ti_csi2rx_probe failure path. > - Drop busy check in remove(). > - mutex_destroy() in ti_csi2rx_remove(). > - Address Laurent's review comments: > - Update entries in Makefile in alphabetical order. > - include headers in alphabetical order. > - Drop redundant CSI DT defines and use from media/mipi-csi2.h. > - Rename csi_df to csi_dt. > - Drop v4l2_colorspace from ti_csi2rx_fmt and set default in > ti_csi2rx_v4l2_init() > - Adjust field and not return EINVAL in ti_csi2rx_try_fmt_vid_cap(). > - inline ti_csi2rx_video_register(). > - start DMA before starting source subdev. > - move buffer cleanup to separate function > ti_csi2rx_cleanup_buffers() > to be used in ti_csi2rx_stop_streaming() and > ti_csi2rx_start_streaming() > failure path. > - Drop VB2_USERPTR, VB2_READ and V4L2_CAP_READWRITE. > - For patch 4/13 ("media: cadence: csi2rx: Add external DPHY > support"): > - Fix multiplier and divider in v4l2_get_link_freq() which caused > failures during streaming. > > Changes in v6: > - Move the lock around the dereference for framefmt in > csi2rx_{get,set}_fmt() instead of when we get the pointer. > - Do not return an error when an unsupported format is set. Instead > adjust the code to the first format in the list. > - Drop variable bpp and use fmt->bpp directly. > - Drop variable got_pm. Call phy_pm_runtime_put() unconditionally > since > it will just return an error if runtime PM is not enabled. > - Drop transcoding from the commit message. > - Make csi2rx_media_ops const. > > Changes in v5: > - Cleanup notifier in csi2rx_parse_dt() after the call to > v4l2_async_nf_add_fwnode_remote(). > - Use YUV 1X16 formats instead of 2X8. > - Only error out when phy_pm_runtime_get_sync() returns a negative > value. A positive value can be returned if the phy was already > resumed. > - Do not query the source subdev for format. Use the newly added > internal format instead. > - Make i unsigned. > - Change %d to %u > - Add dependency on PHY_CADENCE_DPHY_RX instead of PHY_CADENCE_DPHY > since the Rx mode DPHY now has a separate driver. > - Drop ti_csi2rx_validate_pipeline(). Pipeline validation should be > done > at media_pipeline_start(). > - Do not assign flags. > - Fix error handling in ti_csi2rx_start_streaming(). Free up vb2 > buffers > when media_pipeline_start() fails. > - Move clock description in comments under the clocks property. > - Make ports required. > - Add link validation to cdns-csi2rx driver. > > Changes in v4: > - Drop the call to set PHY submode. It is now being done via > compatible > on the DPHY side. > - Acquire the media device's graph_mutex before starting the graph > walk. > - Call media_graph_walk_init() and media_graph_walk_cleanup() when > starting and ending the graph walk respectively. > - Reduce max frame height and width in enum_framesizes. Currently > they > are set to UINT_MAX but they must be a multiple of step_width, so > they > need to be rounded down. Also, these values are absurdly large > which > causes some userspace applications like gstreamer to trip up. While > it > is not generally right to change the kernel for an application bug, > it > is not such a big deal here. This change is replacing one set of > absurdly large arbitrary values with another set of smaller but > still > absurdly large arbitrary values. Both limits are unlikely to be hit > in > practice. > - Add power-domains property. > - Drop maxItems from clock-names. > - Drop the type for data-lanes. > - Drop uniqueItems from data-lanes. Move it to video-interfaces.yaml > instead. > - Drop OV5640 runtime pm patch. It seems to be a bit complicated and > it > is not exactly necessary for this series. Any CSI-2 camera will > work > just fine, OV5640 just happens to be the one I tested with. I don't > want it to block this series. I will submit it as a separate patch > later. > > Changes in v3: > - Use v4l2_get_link_freq() to calculate pixel clock. > - Move DMA related fields in struct ti_csi2rx_dma. > - Protect DMA buffer queue with a spinlock to make sure the queue > buffer > and DMA callback don't race on it. > - Track the current DMA state. It might go idle because of a lack of > buffers. This state can be used to restart it if needed. > - Do not include the current buffer in the pending queue. It is > slightly > better modelling than leaving it at the head of the pending queue. > - Use the buffer as the callback argument, and add a reference to csi > in it. > - If queueing a buffer to DMA fails, the buffer gets leaked and DMA > gets > stalled with. Instead, report the error to vb2 and queue the next > buffer in the pending queue. > - DMA gets stalled if we run out of buffers since the callback is the > only one that fires subsequent transfers and it is no longer being > called. Check for that when queueing buffers and restart DMA if > needed. > - Do not put of node until we are done using the fwnode. > - Set inital format to UYVY 640x480. > - Add compatible: contains: const: cdns,csi2rx to allow SoC specific > compatible. > - Add more constraints for data-lanes property. > > Changes in v2: > - Use phy_pm_runtime_get_sync() and phy_pm_runtime_put() before > making > calls to set PHY mode, etc. to make sure it is ready. > - Use dmaengine_get_dma_device() instead of directly accessing > dma->device->dev. > - Do not set dst_addr_width when configuring slave DMA. > - Move to a separate subdir and rename to j721e-csi2rx.c > - Convert compatible to ti,j721e-csi2rx. > - Move to use Media Controller centric APIs. > - Improve cleanup in probe when one of the steps fails. > - Add colorspace to formats database. > - Set hw_revision on media_device. > - Move video device initialization to probe time instead of register > time. > - Rename to ti,j721e-csi2rx.yaml > - Add an entry in MAINTAINERS. > - Add a description for the binding. > - Change compatible to ti,j721e-csi2rx to make it SoC specific. > - Remove description from dmas, reg, power-domains. > - Remove a limit of 2 from #address-cells and #size-cells. > - Fix add ^ to csi-bridge subnode regex. > - Make ranges mandatory. > - Add unit address in example. > - Add a reference to cdns,csi2rx in csi-bridge subnode. > - Expand the example to include the csi-bridge subnode as well. > - Re-order subject prefixes. > - Convert OV5640 to use runtime PM and drop Cadence CSI2RX s_power > patch. > - Drop subdev call wrappers from cdns-csi2rx. > - Move VPE and CAL to a separate subdir. > - Rename ti-csi2rx.c to j721e-csi2rx.c > > Pratyush Yadav (13): > media: cadence: csi2rx: Unregister v4l2 async notifier > media: cadence: csi2rx: Cleanup media entity properly > media: cadence: csi2rx: Add get_fmt and set_fmt pad ops > media: cadence: csi2rx: Add external DPHY support > media: cadence: csi2rx: Soft reset the streams before starting > capture > media: cadence: csi2rx: Set the STOP bit when stopping a stream > media: cadence: csi2rx: Fix stream data configuration > media: cadence: csi2rx: Populate subdev devnode > media: cadence: csi2rx: Add link validation > media: ti: Add CSI2RX support for J721E > media: dt-bindings: Make sure items in data-lanes are unique > media: dt-bindings: Add DT bindings for TI J721E CSI2RX driver > media: dt-bindings: Convert Cadence CSI2RX binding to YAML > > .../devicetree/bindings/media/cdns,csi2rx.txt | 100 -- > .../bindings/media/cdns,csi2rx.yaml | 176 +++ > .../bindings/media/ti,j721e-csi2rx.yaml | 101 ++ > .../bindings/media/video-interfaces.yaml | 1 + > MAINTAINERS | 7 + > drivers/media/platform/cadence/cdns-csi2rx.c | 273 ++++- > drivers/media/platform/ti/Kconfig | 12 + > drivers/media/platform/ti/Makefile | 1 + > .../media/platform/ti/j721e-csi2rx/Makefile | 2 + > .../platform/ti/j721e-csi2rx/j721e-csi2rx.c | 1022 > +++++++++++++++++ > 10 files changed, 1580 insertions(+), 115 deletions(-) > delete mode 100644 > Documentation/devicetree/bindings/media/cdns,csi2rx.txt > create mode 100644 > Documentation/devicetree/bindings/media/cdns,csi2rx.yaml > create mode 100644 Documentation/devicetree/bindings/media/ti,j721e- > csi2rx.yaml > create mode 100644 drivers/media/platform/ti/j721e-csi2rx/Makefile > create mode 100644 drivers/media/platform/ti/j721e-csi2rx/j721e- > csi2rx.c >
