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ipu6-drivers

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

Content of this repository:

  • IPU6 kernel driver
  • Drivers sensors OV01A1S, OV01A10 and HM11B1
  • Driver for LPSS USB controller

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 5.14

  • Check out kernel

  • Copy repo content to kernel source

  • Modify related Kconfig and Makefile

  • Add config in LinuxRoot/drivers/media/i2c/Kconfig

    config POWER_CTRL_LOGIC
        tristate "power control logic driver"
        depends on GPIO_ACPI
        help
          This is a power control logic driver for sensor, the design
          depends on camera sensor connections.
          This driver controls power by getting and using managed GPIO
          pins from ACPI config for sensors, such as HM11B1, OV01A1S.

          To compile this driver as a module, choose M here: the
          module will be called power_ctrl_logic.

config VIDEO_OV01A1S
        tristate "OmniVision OV01A1S sensor support"
        depends on POWER_CTRL_LOGIC
        depends on VIDEO_V4L2 && I2C
        depends on ACPI || COMPILE_TEST
        select MEDIA_CONTROLLER
        select VIDEO_V4L2_SUBDEV_API
        select V4L2_FWNODE
        help
          This is a Video4Linux2 sensor driver for the OmniVision
          OV01A1S camera.

          To compile this driver as a module, choose M here: the
          module will be called ov01a1s.

config VIDEO_OV01A10
        tristate "OmniVision OV01A10 sensor support"
        depends on VIDEO_V4L2 && I2C
        depends on ACPI || COMPILE_TEST
        select MEDIA_CONTROLLER
        select VIDEO_V4L2_SUBDEV_API
        select V4L2_FWNODE
        help
          This is a Video4Linux2 sensor driver for the OmniVision
          OV01A10 camera.

          To compile this driver as a module, choose M here: the
          module will be called ov01a10.

config VIDEO_HM11B1
      tristate "Himax HM11B1 sensor support"
      depends on POWER_CTRL_LOGIC
      depends on VIDEO_V4L2 && I2C
      select MEDIA_CONTROLLER
      select VIDEO_V4L2_SUBDEV_API
      select V4L2_FWNODE
      help
        This is a Video4Linux2 sensor driver for the Himax
        HM11B1 camera.

        To compile this driver as a module, choose M here: the
        module will be called hm11b1.

  • Add to drivers/media/i2c/Makefile

    obj-$(CONFIG_POWER_CTRL_LOGIC) += power_ctrl_logic.o
obj-$(CONFIG_VIDEO_OV01A1S) += ov01a1s.o
obj-$(CONFIG_VIDEO_OV01A10) += ov01a10.o
obj-$(CONFIG_VIDEO_HM11B1)  += hm11b1.o

  • Modify drivers/media/pci/Kconfig

    # replace line:
# source "drivers/media/pci/intel/ipu3/Kconfig"
# with line:
source "drivers/media/pci/intel/Kconfig"

  • Add to drivers/usb/Kconfig

    source "drivers/usb/intel_ulpss/Kconfig"

  • Add to drivers/usb/Makefile

    obj-$(CONFIG_INTEL_LPSS_USB)  += intel_ulpss/

  • Enable the following settings in .config

    CONFIG_VIDEO_INTEL_IPU6=m
CONFIG_POWER_CTRL_LOGIC=m
CONFIG_INTEL_LPSS_USB=m

CONFIG_VIDEO_OV01A1S=m
CONFIG_VIDEO_OV01A10=m
CONFIG_VIDEO_HM11B1=m

  • CVF part as below, refer to 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_INTEL_MEI_VSC=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 5.14 kernel header installed on compiling machine

  • To compile:

    $cd ipu6-drivers
$make -j`nproc`

  • To install and use modules

    $sudo make modules_install
$sudo depmod -a

3. Build with dkms

a dkms.conf file is also provided as an example for building with dkms which can be used by dkms add, build and install