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ipu6-drivers

This repository supports MIPI cameras through the IPU6 on Intel Tiger Lake, Alder Lake, Raptor Lake and Meteor Lake platforms. There are 4 repositories that provide the complete setup:

Content of this repository:

  • IPU6 kernel driver
  • Kernel patches needed
  • Drivers for HM11B1, OV01A1S, OV01A10, OV02C10, OV02E10, OV2740, HM2170, HM2172 and HI556 sensors

Dependencies

Build instructions:

Three ways are available:

  1. build with kernel source tree
  2. build out of kernel source tree
  3. and build with dkms

1. Build with kernel source tree

  • Tested with kernel v6.10

  • Check out kernel

  • Apply patches (please check detail comments below):

     # For Meteor Lake B stepping only
 patch/0002-iommu-Add-passthrough-for-MTL-IPU.patch

 # For v5.15 <= kernel version < v5.17 and using INT3472
 patch/int3472-v5.15/*.patch

 # For v5.17 <= kernel version < v6.1.7 and using INT3472
 patch/int3472-v5.17/*.patch

 # For kernel version >= 6.1.7 and using INT3472
 patch/int3472-v6.1.7/*.patch

 # For kernel version >= 6.3 and using ov13b10
 patch/ov13b10-v6.3/*.patch

 # For kernel version v6.8,
 # patch/v6.8/0002-media-Add-IPU6-and-supported-sensors-config.patch
 # will change the related Kconfig & Makefile.
 patch/v6.8/*.patch

 # For kernel version v6.10+,
 # patch/<version>/in-tree-build/0001-media-ipu6-Workaround-to-build-PSYS.patch
 # will change the Makefile to build IPU6 PSYS driver, and
 # patch/<version>/in-tree-build/0002-media-i2c-Add-sensors-config.patch
 # will change the Makefile & Kconfig for I2C sensor drivers.
 patch/<version>/in-tree-build/*.patch
 patch/<version>/*.patch

  • Copy IPU6 drivers to kernel source:

    • For kernel < 6.10, need all IPU6 drivers:
     cp -r drivers/media/pci/intel/ <your-kernel>/drivers/media/pci/
 cp -r include/* <your-kernel>/include/
    • For kernel >= 6.10, only IPU6 PSYS driver needed:
     # Out-Of-Tree IPU6 PSYS driver
 cp -r drivers/media/pci/intel/ipu6/psys <your-kernel>/drivers/media/pci/intel/ipu6/
 cp include/uapi/linux/ipu-psys.h <your-kernel>/include/uapi/linux/

  • Copy I2C sensor drivers to kernel source (depending on your need):

     # Remove ipu6-drivers/drivers/media/i2c/{Kconfig,Makefile}
 # as corresponding files in your kernel was changed by patches before
 rm drivers/media/i2c/Kconfig drivers/media/i2c/Makefile
 cp -r drivers/media/i2c <your-kernel>/drivers/media/

  • Enable the following settings in .config

     CONFIG_VIDEO_INTEL_IPU6=m
 CONFIG_IPU_ISYS_BRIDGE=y
 # For kernel >= v6.8 please use IPU_BRIDGE instead of IPU_ISYS_BRIDGE
 CONFIG_IPU_BRIDGE=m
 CONFIG_VIDEO_OV01A1S=m
 CONFIG_VIDEO_OV01A10=m
 CONFIG_VIDEO_HM11B1=m
 CONFIG_VIDEO_OV02C10=m
 CONFIG_VIDEO_OV02E10=m
 CONFIG_VIDEO_HM2170=m
 CONFIG_VIDEO_HM2172=m
 # Set this only if you use only 1 camera and don't want too many device nodes in media-ctl
 # CONFIG_IPU_SINGLE_BE_SOC_DEVICE=y
 # If your kernel < 5.15 or not set CONFIG_INTEL_SKL_INT3472, please set this
 # CONFIG_POWER_CTRL_LOGIC=m

  • LJCA and CVF part as below, please check details at https://github.com/intel/ivsc-driver/blob/main/README.md.

     CONFIG_MFD_LJCA=m
 CONFIG_I2C_LJCA=m
 CONFIG_SPI_LJCA=m
 CONFIG_GPIO_LJCA=m
 CONFIG_USB_LJCA=m
 CONFIG_INTEL_MEI_VSC=m
 CONFIG_INTEL_MEI_VSC_HW=m
 CONFIG_INTEL_VSC=m
 CONFIG_INTEL_VSC_CSI=m
 CONFIG_INTEL_VSC_ACE=m
 CONFIG_INTEL_VSC_PSE=m
 CONFIG_INTEL_VSC_ACE_DEBUG=m

2. Build outside kernel source tree

  • Requires kernel header installed on build machine

  • For kernel >= v6.10, need to patch this repo by ipu6-drivers/patches/*.patch (which can be automatically applied if you use DKMS build).

  • For kernel >= v6.10, need to patch your kernel by patch/v6.10/*.patch.

  • For kernel >= v6.8, still need to patch kernel by patch/v6.8/0004 & 0005 to make upstream iVSC driver work correctly. For kernel <= v6.6, requires iVSC out-of-tree driver be built together.

  • To prepare out-of-tree iVSC driver under kernel <= v6.6:

     cd ipu6-drivers
 git clone https://github.com/intel/ivsc-driver.git
 cp -r ivsc-driver/backport-include ivsc-driver/drivers ivsc-driver/include .
 rm -rf ivsc-driver

  • To build and install:

     make -j`nproc` && sudo make modules_install && sudo depmod -a

3. Build with dkms

  • Prepare out-of-tree iVSC driver under kernel <= v6.6:

     cd ipu6-drivers
 git clone https://github.com/intel/ivsc-driver.git
 cp -r ivsc-driver/backport-include ivsc-driver/drivers ivsc-driver/include .
 rm -rf ivsc-driver

  • Register, build and auto install:

     sudo dkms add .
 sudo dkms autoinstall ipu6-drivers/0.0.0