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:

https://github.com/intel/ipu6-drivers - kernel drivers for the IPU and sensors
https://github.com/intel/ipu6-camera-bins - IPU firmware and proprietary image processing libraries
https://github.com/intel/ipu6-camera-hal - HAL for processing of images in userspace
https://github.com/intel/icamerasrc/tree/icamerasrc_slim_api (branch:icamerasrc_slim_api) - Gstreamer src plugin

Content of this repository:

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

Dependencies

intel-vsc driver and LJCA USB driver (use https://github.com/intel/ivsc-driver.git for kernel version < 6.6)
intel USB-IO driver (https://github.com/intel/usbio-drivers.git)
INTEL_SKL_INT3472 should be enabled

Build instructions:

Three ways are available:

build with kernel source tree
build out of kernel source tree
and build with dkms

1. Build with kernel source tree

Tested with kernel v6.8
Check out kernel

Apply patches:

 # 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/*.patch

For kernel v6.8. patch/v6.8/0002-media-Add-IPU6-and-supported-sensors-config.patch will change the related Kconfig & Makefile.
For latest linux-firmware repo, apply patch/linux-firmware/0001-Add-symbolic-link-for-Intel-IPU6-firmwares.patch to it to make driver work.
Copy repo content to kernel source (except Kconfig & Makefile at drivers/media/pci/intel and drivers/media/i2c as they are modified by patches in previous step).

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 >= v6.8, 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

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