linux-kernel - Re: [RFC PATCH V2 0/2] Add Xilinx DSI TX driver

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Date:   Tue, 11 Aug 2020 22:00:04 +0200
From:   Sam Ravnborg <sam@...nborg.org>
To:     Venkateshwar Rao Gannavarapu 
        <venkateshwar.rao.gannavarapu@...inx.com>
Cc:     hyun.kwon@...inx.com, laurent.pinchart@...asonboard.com,
        dri-devel@...ts.freedesktop.org, sandipk@...inx.com,
        airlied@...ux.ie, linux-kernel@...r.kernel.org, vgannava@...inx.com
Subject: Re: [RFC PATCH V2 0/2] Add Xilinx DSI TX driver

Hi Venkateshwar

On Tue, Aug 11, 2020 at 06:16:15AM +0530, Venkateshwar Rao Gannavarapu wrote:
> Xilinx DSI-TX subsytem consists of DSI controller core, AXI crossbar
> and D-PHY as sub blocks. DSI TX subsystem driver supports multiple lanes
> upto 4, RGB color formats, video mode and command modes.
> 
> DSI-TX driver is implemented as an encoder driver, as it going to be
> the final node in display pipeline. Xilinx doesn't support any converter
> logic to make this as bridge driver. Xilinx doesn't have such
> use cases where end node can't be an encoder like DSI-TX. And Xilinx
> encoder drivers represents a subsystem where individual blocks can't be
> used with external components / encoders.
> 
> Venkateshwar Rao Gannavarapu (2):
>   dt-bindings: display: xlnx: dsi: This add a DT binding for Xilinx DSI
>     TX     subsystem.
>   drm: xlnx: dsi: driver for Xilinx DSI TX subsystem

Can you please elaborate a little what was changed since v1.
Preferably in some dense list form where you also list who provided the
feedback, preferably in the individual patches.

This is a great help trying to trigger the memory of past reviewers.
Please also include feedback that was not addressed. For example Laurent
said that this is a bridge drive and thus belongs in bridge/ alas that
was not done for so please list a reason.

	Sam

> 
>  .../devicetree/bindings/display/xlnx/xlnx,dsi.yaml | 147 +++++
>  drivers/gpu/drm/xlnx/Kconfig                       |  11 +
>  drivers/gpu/drm/xlnx/Makefile                      |   2 +
>  drivers/gpu/drm/xlnx/xlnx_dsi.c                    | 701 +++++++++++++++++++++
>  4 files changed, 861 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/xlnx/xlnx,dsi.yaml
>  create mode 100644 drivers/gpu/drm/xlnx/xlnx_dsi.c
> 
> --
> 1.8.3.1
> 
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