[v3,0/3] drm/rockchip: Add driver for the new DSI2 controller

Message

Heiko Stuebner Dec. 3, 2024, 4:54 p.m. UTC

This series adds a bridge and glue driver for the DSI2 controller found
in the rk3588 soc from Rockchip, that is based on a Synopsis IP block.

As the manual states:
The Display Serial Interface 2 (DSI-2) is part of a group of communication
protocols defined by the MIPI Alliance. The MIPI DSI-2 Host Controller is
a digital core that implements all protocol functions defined in the
MIPI DSI-2 Specification.


While the driver structure is very similar to the previous DSI controller,
the programming model of the core is quite different, with a completely
new register set.

Another notable difference is that the phy interface is variable now too
in its width and some other settings.

changes in v3:
- remove double-empty line in bridge part (Neil)
- add bitfield.h to both bridge and glue for FIELD_PROP
  (reported by kernel test robot)
- add Neil's Reviewed-by to bridge part
- add Rob's Reviewed-by to binding

changes in v2:
- clean up includes (Diederik)
- fix Kconfig description (Diederik)
- constant naming (Diederik)
- binding fixes (paths, sorting, labels) (Rob)
- move to use regmap
- drop custom UPDATE macro and use FIELD_PREP instead
- use dev_err instead of DRM_DEV_ERROR

Heiko Stuebner (3):
  drm/bridge/synopsys: Add MIPI DSI2 host controller bridge
  dt-bindings: display: rockchip: Add schema for RK3588 DW DSI2
    controller
  drm/rockchip: Add MIPI DSI2 glue driver for RK3588

 .../rockchip/rockchip,rk3588-mipi-dsi2.yaml   |  119 ++
 drivers/gpu/drm/bridge/synopsys/Kconfig       |    6 +
 drivers/gpu/drm/bridge/synopsys/Makefile      |    1 +
 .../gpu/drm/bridge/synopsys/dw-mipi-dsi2.c    | 1030 +++++++++++++++++
 drivers/gpu/drm/rockchip/Kconfig              |   10 +
 drivers/gpu/drm/rockchip/Makefile             |    1 +
 .../gpu/drm/rockchip/dw-mipi-dsi2-rockchip.c  |  524 +++++++++
 drivers/gpu/drm/rockchip/rockchip_drm_drv.c   |    2 +
 drivers/gpu/drm/rockchip/rockchip_drm_drv.h   |    1 +
 include/drm/bridge/dw_mipi_dsi2.h             |   95 ++
 10 files changed, 1789 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/rockchip/rockchip,rk3588-mipi-dsi2.yaml
 create mode 100644 drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi2.c
 create mode 100644 drivers/gpu/drm/rockchip/dw-mipi-dsi2-rockchip.c
 create mode 100644 include/drm/bridge/dw_mipi_dsi2.h