Hi Heiko,

On 08/21/2018 04:05 PM, Heiko Stuebner wrote:

The Rockchip DSI driver was separate till now, not using the common
bridge driver that was introduced a bit later. So this series migrates
over to use that common bridge driver and then also adds support for
dual-dsi to both the bridge and Rockchip glue code.

The bridge-migration itself is based on Nickeys earlier v8
work, but adapted to current kernels and with a new split between probe
and bind, so that we do not create and drop the dsi-host on each deferred
bind attempt.

changes in v2:
- rebase against newer drm code (dsi-bridge+rockchip changes)
- add SPDX header to new glue driver
- expect regular interface lanes from panel (like 4) not the double number
   Similar to tegra
- keep links to both master and slave
changes in v3:
- don't defer in bridge_attach, instead add ability to check for finalized
   panel attachement, for example in bind
- address bridge-conversion comments from Andrzej:
   - include ordering
   - moved hwaccess from mode_set to enable callback
   - move pllref_clk enablement to bind (needed by bridge mode_set->lane_mbps)
- limited slave settings to dw_mipi_dsi_set_slave
- address dual-dsi comments from Philippe:
   - remove unneeded separate variables
   - remove unneeded second slave settings
   - disable slave before master
   - lane-sum calculation comments
changes in v4:
- rebase against some legacy rockchip-dsi changes
- add dsi-component only after panel has attached to dsi host
   This solves quite some concurrency problems that happen when trying
   to determine dsi-panel availability
changes in v5:
- use driver-internal method to find second host
- drop of-graph based dsi method for it

FYI, Yannick tested successfully the v5 version on stm32 boards. Note 
that drm stm32 drivers do not use bind/unbind & dual-dsi so this email 
is simply to share with you this minor information: "v5 patch does not 
break stm32 dsi", hope it helps a little.
Many thanks,
Philippe :-)

Unchanged from review comments:
- kept dw_mipi_dsi_bind, as the dsi->bridge member is only part of the
   bridge drivers struct, so not accessible from glue drivers
- kept dual-dsi handling that mimicks tegra


Heiko Stuebner (4):
   drm/bridge/synopsys: dsi: move mipi_dsi_host_unregister to
     __dw_mipi_dsi_remove
   drm/bridge/synopsys: dsi: don't call __dw_mipi_dsi_probe from
     dw_mipi_dsi_bind
   drm/bridge/synopsys: dsi: add ability to have glue-specific attach and
     detach
   drm/rockchip: dsi: add dual mipi support

Nickey Yang (3):
   dt-bindings: display: rockchip: update DSI controller
   drm/rockchip: dsi: migrate to use dw-mipi-dsi bridge driver
   drm/bridge/synopsys: dsi: add dual-dsi support

  .../display/rockchip/dw_mipi_dsi_rockchip.txt |   23 +-
  drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c |  114 +-
  drivers/gpu/drm/rockchip/Kconfig              |    2 +-
  drivers/gpu/drm/rockchip/Makefile             |    2 +-
  .../gpu/drm/rockchip/dw-mipi-dsi-rockchip.c   | 1044 +++++++++++++
  drivers/gpu/drm/rockchip/dw-mipi-dsi.c        | 1349 -----------------
  drivers/gpu/drm/rockchip/rockchip_drm_drv.c   |    2 +-
  drivers/gpu/drm/rockchip/rockchip_drm_drv.h   |    3 +-
  drivers/gpu/drm/rockchip/rockchip_drm_vop.c   |    3 +
  drivers/gpu/drm/rockchip/rockchip_drm_vop.h   |    4 +
  drivers/gpu/drm/rockchip/rockchip_vop_reg.c   |    1 +
  include/drm/bridge/dw_mipi_dsi.h              |   14 +-
  12 files changed, 1182 insertions(+), 1379 deletions(-)
  create mode 100644 drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
  delete mode 100644 drivers/gpu/drm/rockchip/dw-mipi-dsi.c