[PATCH 0/8] media: imx-pxp: add support for i.MX7D

Michael Tretter
2023-01-05T13:48:16Z

This series adds support for the PXP found on the i.MX7D to the imx-pxp
driver.

The PXP on the i.MX7D has a few differences compared to the one on the
i.MX6ULL. Especially, it has more processing blocks and slightly different
multiplexers to route the data between the blocks. Therefore, the driver must
configure a different data path depending on the platform.

While the PXP has a version register, the reported version is the same on the
i.MX6ULL and the i.MX7D. Therefore, we cannot use the version register to
change the driver behavior, but have to use the device tree compatible. The
driver still prints the found version to the log to help bringing up the PXP
on further platforms.

The patches are inspired by some earlier patches [0] by Laurent to add PXP
support to the i.MX7d. Compared to the earlier patches, these patches add
different behavior depending on the platform. Furthermore, the patches disable
only the LUT block, but keep the rotator block enabled, as it may now be
configured via the V4L2 rotate control.

Patch 1 converts the dt-binding to yaml.

Patches 2 to 5 cleanup and refactor the driver in preparation of handling
different PXP versions.

Patches 6 and 7 add the handling of different platforms and the i.MX7d
specific configuration.

Patch 8 adds the device tree node for the PXP to the i.MX7d device tree.

Michael

[0] https://lore.kernel.org/linux-media/20200510223100.11641-1-laurent.pinchart@ideasonboard.com/

Michael Tretter (8):
media: dt-bindings: media: fsl-pxp: convert to yaml
media: imx-pxp: detect PXP version
media: imx-pxp: extract helper function to setup data path
media: imx-pxp: explicitly disable unused blocks
media: imx-pxp: disable LUT block
media: imx-pxp: make data_path_ctrl0 platform dependent
media: imx-pxp: add support for i.MX7D
ARM: dts: imx7d: add node for PXP

.../bindings/media/fsl,imx6ull-pxp.yaml | 62 ++++++++
.../devicetree/bindings/media/fsl-pxp.txt | 26 ---
arch/arm/boot/dts/imx7d.dtsi | 9 ++
drivers/media/platform/nxp/imx-pxp.c | 148 +++++++++++++++---
4 files changed, 197 insertions(+), 48 deletions(-)
create mode 100644 Documentation/devicetree/bindings/media/fsl,imx6ull-pxp.yaml
delete mode 100644 Documentation/devicetree/bindings/media/fsl-pxp.txt

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2.30.2