On Mon, 02 Dec 2019, Adrian Ratiu [off-list ref] 
wrote:

Having a generic Synopsis DesignWare MIPI-DSI host controller 
bridge driver is a very good idea, however the current 
implementation has hardcoded quite a lot of the register layouts 
used by the two supported SoC vendors, STM and Rockchip, which 
use IP cores v1.30 and v1.31. 

This makes it hard to support other SoC vendors like the FSL/NXP 
i.MX 6 which use older v1.01 cores or future versions because, 
based on history, layout changes should also be expected in new 
DSI versions / SoCs. 

This patch series converts the bridge and platform drivers to 
access registers via generic regmap APIs and allows each 
platform driver to configure its register layout via struct 
reg_fields, then adds support for the host controller found on 
i.MX 6. 

I only have i.MX hardware with MIPI-DSI panel and relevant 
documentation available for testing so I'll really appreciate it 
if someone could test the series on Rockchip and 
STM... eyeballing register fields could only get me so far, so 
sorry in advance for any breakage! 

Many thanks to Boris Brezillon [off-list ref] 
for suggesting the regmap solution and to Liu Ying 
[off-list ref] for doing the initial i.MX platform 
driver implementation. 

This series applies on top of latest linux-next tree, 
next-20191202. 

v3 -> v4: 
  * Added commmit message to dt-binding patch (Neil) * Converted 
  the dt-binding to yaml dt-schema format (Neil) * Small DT node 
  + driver fixes (Rob) * Renamed platform driver to reflect it's 
  only for i.MX v6 (Fabio) * Added small panel example to the 
  host controller DT binding 

v2 -> v3: 
  * Added const declarations to dw-mipi-dsi.c structs (Emil) * 
  Fixed Reviewed-by tags and cc'd some more relevant ML (Emil) 

v1 -> v2: 
  * Moved register definitions & regmap initialization into 
  bridge module. Platform drivers get the regmap via plat_data 
  after calling the bridge probe (Emil). 

I've been told I forgot to explicitly CC some of the maintainers, 
sorry about that! Added a few more persons to CC.

Adrian Ratiu (4):
  drm: bridge: dw_mipi_dsi: access registers via a regmap
  drm: bridge: dw_mipi_dsi: abstract register access using reg_fields
  drm: imx: Add i.MX 6 MIPI DSI host driver
  dt-bindings: display: add i.MX6 MIPI DSI host controller doc

 .../display/imx/fsl,mipi-dsi-imx6.yaml        | 136 ++++
 drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c | 699 +++++++++++++-----
 drivers/gpu/drm/imx/Kconfig                   |   7 +
 drivers/gpu/drm/imx/Makefile                  |   1 +
 drivers/gpu/drm/imx/dw_mipi_dsi-imx6.c        | 378 ++++++++++
 .../gpu/drm/rockchip/dw-mipi-dsi-rockchip.c   |  17 +-
 drivers/gpu/drm/stm/dw_mipi_dsi-stm.c         |  34 +-
 include/drm/bridge/dw_mipi_dsi.h              |   2 +-
 8 files changed, 1067 insertions(+), 207 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/display/imx/fsl,mipi-dsi-imx6.yaml
 create mode 100644 drivers/gpu/drm/imx/dw_mipi_dsi-imx6.c

-- 
2.24.0

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