Re: [PATCH v9 00/11] Genericize DW MIPI DSI bridge and add i.MX 6 driver

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Hi Neil,

On Wed, 2020-07-01 at 09:35 +0300, Adrian Ratiu wrote:
> Hi Neil,
> 
> On Mon, 29 Jun 2020, Neil Armstrong <narmstrong@xxxxxxxxxxxx> 
> wrote:
> > Hi Adrian, 
> > 
> > On 09/06/2020 19:49, Adrian Ratiu wrote: 
> > > [Re-submitting to cc dri-devel, sorry about the noise]  Hello 
> > > all,  v9 cleanly applies on top of latest next-20200609 tree. 
> > > v9 does not depend on other patches as the last binding doc has 
> > > been merged.   All feedback up to this point has been 
> > > addressed. Specific details in individual patch changelogs. 
> > > The biggest changes are the deprecation of the Synopsys DW 
> > > bridge bind() API in favor of of_drm_find_bridge() and .attach 
> > > callbacks, the addition of a TODO entry which outlines future 
> > > planned bridge driver refactorings and a reordering of some 
> > > i.MX 6 patches to appease checkpatch.   The idea behind the 
> > > TODO is to get this regmap and i.MX 6 driver merged and then do 
> > > the rest of refactorings in-tree because it's easier and the 
> > > refactorings themselves are out-of-scope of this series which 
> > > is adding i.MX 6 support and is quite big already, so please, 
> > > if there are more refactoring ideas, let's add them to the TODO 
> > > doc. :) I intend to tackle those after this series is merged to 
> > > avoid two complex inter-dependent simultaneous series. 
> > 
> > This has been around here for a long time and you seem to have 
> > addressed all the reviews. 
> > 
> > >  As always more testing is welcome especially on Rockchip and 
> > > STM SoCs. 
> > 
> > It has been tested on STM, but I'd like a feedback on RK 
> > platform before applying the bridge parts. 
> > 
> > Can the imx & stm patches be applied separately ? 
> > 
> 
> Yes the IMX and STM patches can be applied separately, they just 
> both depend on the common regmap patches.
> 

It's been a month so I think it's a good idea to go forward
applying IMX and STM patches (probably with the usual
rebase dance).

As for Rockchip...

> The binding API removal change which directly touches RK can also 
> be applied separately, but unfortunately I do not have access to a 
> RK board with a DSI display to test it (or the bridge regmap logic 
> on RK btw...), I just "eye-balled" the RK code based on the public 
> docs and it LGTM.
> 

... I'll be getting some DSI hardware to help with the pending
Rockchip issues, so we can tackle Rockchip as well. I'm quite sure
we'll loop Heiko as well if needed :-)

Cheers,
Ezequiel

> > Neil
> > 
> > > Big thank you to everyone who has contributed to this up to now,
> > > Adrian
> > > 
> > > Adrian Ratiu (11):
> > >   drm: bridge: dw_mipi_dsi: add initial regmap infrastructure
> > >   drm: bridge: dw_mipi_dsi: abstract register access using reg_fields
> > >   drm: bridge: dw_mipi_dsi: add dsi v1.01 support
> > >   drm: bridge: dw_mipi_dsi: remove bind/unbind API
> > >   dt-bindings: display: add i.MX6 MIPI DSI host controller doc
> > >   ARM: dts: imx6qdl: add missing mipi dsi properties
> > >   drm: imx: Add i.MX 6 MIPI DSI host platform driver
> > >   drm: stm: dw-mipi-dsi: let the bridge handle the HW version check
> > >   drm: bridge: dw-mipi-dsi: split low power cfg register into fields
> > >   drm: bridge: dw-mipi-dsi: fix bad register field offsets
> > >   Documentation: gpu: todo: Add dw-mipi-dsi consolidation plan
> > > 
> > >  .../display/imx/fsl,mipi-dsi-imx6.yaml        | 112 +++
> > >  Documentation/gpu/todo.rst                    |  25 +
> > >  arch/arm/boot/dts/imx6qdl.dtsi                |   8 +
> > >  drivers/gpu/drm/bridge/synopsys/Kconfig       |   1 +
> > >  drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c | 713 ++++++++++++------
> > >  drivers/gpu/drm/imx/Kconfig                   |   8 +
> > >  drivers/gpu/drm/imx/Makefile                  |   1 +
> > >  drivers/gpu/drm/imx/dw_mipi_dsi-imx6.c        | 399 ++++++++++
> > >  .../gpu/drm/rockchip/dw-mipi-dsi-rockchip.c   |   7 +-
> > >  drivers/gpu/drm/stm/dw_mipi_dsi-stm.c         |  16 +-
> > >  10 files changed, 1059 insertions(+), 231 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
> > > 

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