[Intel-gfx] [PATCH v2 00/59] Add support for KeemBay DRM driver

[Anitha Chrisanthus]

This is a new DRM driver for Intel's KeemBay SOC.
The SoC couples an ARM Cortex A53 CPU with an Intel
Movidius VPU.

This driver is tested with the KMB EVM board which is the refernce baord
for Keem Bay SOC. The SOC's display pipeline is as follows

+--------------+    +---------+    +-----------------------+
|LCD controller| -> |Mipi DSI | -> |Mipi to HDMI Converter |
+--------------+    +---------+    +-----------------------+

LCD controller and Mipi DSI transmitter are part of the SOC and
mipi to HDMI converter is ADV7535 for KMB EVM board.

The DRM driver is a basic KMS atomic modesetting display driver and
has no 2D or 3D graphics.It calls into the ADV bridge driver at
the connector level.

Only 1080p resolution and single plane is supported at this time.
The usecase is for debugging video and camera outputs.

Device tree patches are under review here
https://lore.kernel.org/linux-arm-kernel/20200708175020.194436-1-daniele.alessandrelli@linux.intel.com/T/

Changes since v1:
- Removed redundant license text, updated license
- Rearranged include blocks
- renamed global vars and removed extern in c
- Used upclassing for dev_private
- Used drm_dev_init in drm device create (will be updated to use
  devm_drm_dev_alloc() in a separate patch later as kmb driver is currently
  developed on 5.4 kernel)
- minor cleanups

Anitha Chrisanthus (52):
  drm/kmb: Add support for KeemBay Display
  drm/kmb: Added id to kmb_plane
  drm/kmb: Set correct values in the LAYERn_CFG register
  drm/kmb: Use biwise operators for register definitions
  drm/kmb: Updated kmb_plane_atomic_check
  drm/kmb: Initial check-in for Mipi DSI
  drm/kmb: Set OUT_FORMAT_CFG register
  drm/kmb: Added mipi_dsi_host initialization
  drm/kmb: Part 1 of Mipi Tx Initialization
  drm/kmb: Part 2 of Mipi Tx Initialization
  drm/kmb: Use correct mmio offset from data book
  drm/kmb: Part3 of Mipi Tx initialization
  drm/kmb: Part4 of Mipi Tx Initialization
  drm/kmb: Correct address offsets for mipi registers
  drm/kmb: Part5 of Mipi Tx Intitialization
  drm/kmb: Part6 of Mipi Tx Initialization
  drm/kmb: Part7 of Mipi Tx Initialization
  drm/kmb: Part8 of Mipi Tx Initialization
  drm/kmb: Added ioremap/iounmap for register access
  drm/kmb: Register IRQ for LCD
  drm/kmb: IRQ handlers for LCD and mipi dsi
  drm/kmb: Set hardcoded values to LCD_VSYNC_START
  drm/kmb: Additional register programming to update_plane
  drm/kmb: Add ADV7535 bridge
  drm/kmb: Display clock enable/disable
  drm/kmb: rebase to newer kernel version
  drm/kmb: minor name change to match device tree
  drm/kmb: Changed MMIO size
  drm/kmb: Defer Probe
  drm/kmb: call bridge init in the very beginning
  drm/kmb: Enable MSS_CAM_CLK_CTRL for LCD and MIPI
  drm/kmb: Set MSS_CAM_RSTN_CTRL along with enable
  drm/kmb: Mipi DPHY initialization changes
  drm/kmb: Fixed driver unload
  drm/kmb: Added LCD_TEST config
  drm/kmb: Changes for LCD to Mipi
  drm/kmb: Update LCD programming to match MIPI
  drm/kmb: Changed name of driver to kmb-drm
  drm/kmb: Mipi settings from input timings
  drm/kmb: Enable LCD interrupts
  drm/kmb: Enable LCD interrupts during modeset
  drm/kmb: Don’t inadvertantly disable LCD controller
  drm/kmb: SWAP R and B LCD Layer order
  drm/kmb: Disable ping pong mode
  drm/kmb: Do the layer initializations only once
  drm/kmb: disable the LCD layer in EOF irq handler
  drm/kmb: Initialize uninitialized variables
  drm/kmb: Added useful messages in LCD ISR
  kmb/drm: Prune unsupported modes
  drm/kmb: workaround for dma undeflow issue
  drm/kmb: Get System Clock from SCMI
  drm/kmb: work around for planar formats

Edmund Dea (7):
  drm/kmb: Cleanup probe functions
  drm/kmb: Revert dsi_host back to a static variable
  drm/kmb: Initialize clocks for clk_msscam, clk_mipi_ecfg, &
    clk_mipi_cfg.
  drm/kmb: Remove declaration of irq_lcd/irq_mipi
  drm/kmb: Enable MIPI TX HS Test Pattern Generation
  drm/kmb: Write to LCD_LAYERn_CFG only once
  drm/kmb: Cleaned up code

 drivers/gpu/drm/Kconfig         |    2 +
 drivers/gpu/drm/Makefile        |    1 +
 drivers/gpu/drm/kmb/Kconfig     |   12 +
 drivers/gpu/drm/kmb/Makefile    |    2 +
 drivers/gpu/drm/kmb/kmb_crtc.c  |  226 +++++
 drivers/gpu/drm/kmb/kmb_crtc.h  |   41 +
 drivers/gpu/drm/kmb/kmb_drv.c   |  809 ++++++++++++++++
 drivers/gpu/drm/kmb/kmb_drv.h   |  176 ++++
 drivers/gpu/drm/kmb/kmb_dsi.c   | 1927 +++++++++++++++++++++++++++++++++++++++
 drivers/gpu/drm/kmb/kmb_dsi.h   |  370 ++++++++
 drivers/gpu/drm/kmb/kmb_plane.c |  518 +++++++++++
 drivers/gpu/drm/kmb/kmb_plane.h |  124 +++
 drivers/gpu/drm/kmb/kmb_regs.h  |  738 +++++++++++++++
 13 files changed, 4946 insertions(+)
 create mode 100644 drivers/gpu/drm/kmb/Kconfig
 create mode 100644 drivers/gpu/drm/kmb/Makefile
 create mode 100644 drivers/gpu/drm/kmb/kmb_crtc.c
 create mode 100644 drivers/gpu/drm/kmb/kmb_crtc.h
 create mode 100644 drivers/gpu/drm/kmb/kmb_drv.c
 create mode 100644 drivers/gpu/drm/kmb/kmb_drv.h
 create mode 100644 drivers/gpu/drm/kmb/kmb_dsi.c
 create mode 100644 drivers/gpu/drm/kmb/kmb_dsi.h
 create mode 100644 drivers/gpu/drm/kmb/kmb_plane.c
 create mode 100644 drivers/gpu/drm/kmb/kmb_plane.h
 create mode 100644 drivers/gpu/drm/kmb/kmb_regs.h

-- 
2.7.4