This patch adds the driver for the CIO2 device found in some the Skylake and Kaby Kake SoCs. The CIO2 consists of four D-PHY receivers.
The CIO2 driver exposes V4L2, V4L2 sub-device and Media controller interfaces to the user space. =========== = history = =========== More soon for next version. version 3: - remove cio2_set_power(). - replace dma_alloc_noncoherent() with dma_alloc_coherent(). - apply ffs tricks at possible places. - change sensor_vc to local variable. - move ktime_get_ns() a little earlier in the calling order. - fix multiple assignments(I.e a = b =c) - define CIO2_PAGE_SIZE for CIO2 PAGE_SIZE, SENSOR_VIR_CH_DFLT for default sensor virtual ch. - rework cio2_csi2_calc_timing(). - update v4l2 async subdev field name from match.fwnode.fwn to match.fwnode.fwnode. - cherry-pick internal fix for triggering different irq on SOF and EOF. - return -ENOMEM for vb2_dma_sg_plane_desc() in cio2_vb2_buf_init(). - add cio2_link_validate() placeholder for vdev. version 2: - remove all explicit DMA flush operations - change dma_free_noncoherent() to dma_free_coherent() - remove cio2_hw_mipi_lanes() - replace v4l2_g_ext_ctrls() with v4l2_ctrl_g_ctrl() in cio2_csi2_calc_timing(). - use ffs() to iterate the port_status in cio2_irq() - add static inline file_to_cio2_queue() function - comment dma_wmb(), cio2_rx_timing() and few other places - use ktime_get_ns() for vb2_buf.timestamp in cio2_buffer_done() - use of SET_RUNTIME_PM_OPS() macro for cio2_pm_ops - use BIT() macro for bit difinitions - remove un-used macros such as CIO2_QUEUE_WIDTH() in ipu3-cio2.h - move the MODULE_AUTHOR() to the end of the file - change file path to drivers/media/pci/intel/ipu3 version 1: - Initial submission Yong Zhi (3): videodev2.h, v4l2-ioctl: add IPU3 raw10 color format doc-rst: add IPU3 raw10 bayer pixel format definitions intel-ipu3: cio2: Add new MIPI-CSI2 driver Documentation/media/uapi/v4l/pixfmt-rgb.rst | 1 + .../media/uapi/v4l/pixfmt-srggb10-ipu3.rst | 62 + drivers/media/pci/Kconfig | 2 + drivers/media/pci/Makefile | 3 +- drivers/media/pci/intel/Makefile | 5 + drivers/media/pci/intel/ipu3/Kconfig | 17 + drivers/media/pci/intel/ipu3/Makefile | 1 + drivers/media/pci/intel/ipu3/ipu3-cio2.c | 1779 ++++++++++++++++++++ drivers/media/pci/intel/ipu3/ipu3-cio2.h | 434 +++++ drivers/media/v4l2-core/v4l2-ioctl.c | 4 + include/uapi/linux/videodev2.h | 5 + 11 files changed, 2312 insertions(+), 1 deletion(-) create mode 100644 Documentation/media/uapi/v4l/pixfmt-srggb10-ipu3.rst create mode 100644 drivers/media/pci/intel/Makefile create mode 100644 drivers/media/pci/intel/ipu3/Kconfig create mode 100644 drivers/media/pci/intel/ipu3/Makefile create mode 100644 drivers/media/pci/intel/ipu3/ipu3-cio2.c create mode 100644 drivers/media/pci/intel/ipu3/ipu3-cio2.h -- 2.7.4
