linux-kernel - Re: [PATCH v9 5/5] drm/bridge: cdns-dsi: Add support for J721E wrapper

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Date:   Wed, 21 Dec 2022 12:57:10 +0200
From:   Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
To:     Rahul T R <r-ravikumar@...com>, dri-devel@...ts.freedesktop.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org
Cc:     andrzej.hajda@...el.com, narmstrong@...libre.com,
        robert.foss@...aro.org, jonas@...boo.se, jernej.skrabec@...il.com,
        airlied@...ux.ie, daniel@...ll.ch, p.zabel@...gutronix.de,
        laurent.pinchart@...asonboard.com, linux-kernel@...r.kernel.org,
        jpawar@...ence.com, sjakhade@...ence.com, mparab@...ence.com,
        a-bhatia1@...com, devicetree@...r.kernel.org, vigneshr@...com,
        lee.jones@...aro.org
Subject: Re: [PATCH v9 5/5] drm/bridge: cdns-dsi: Add support for J721E
 wrapper

On 31/10/2022 14:19, Rahul T R wrote:
> Add support for wrapper settings for DSI bridge on
> j721e. Also enable DPI0
> 
> ---------------      -----------------------
> |      -------|      |-------              |
> | DSS  | DPI2 |----->| DPI0 |  DSI Wrapper |
> |      -------|      |-------              |
> ---------------      -----------------------
> 
> As shown above DPI2 output of DSS is connected
> to DPI0 input of DSI Wrapper, DSI wrapper
> gives control wheather to enable/disable DPI0
> input. In j721e above is the only configuration
> supported
> 
> Signed-off-by: Rahul T R <r-ravikumar@...com>
> ---
>   drivers/gpu/drm/bridge/cadence/Kconfig        | 10 ++++
>   drivers/gpu/drm/bridge/cadence/Makefile       |  1 +
>   .../gpu/drm/bridge/cadence/cdns-dsi-core.c    | 35 ++++++++++++-
>   .../gpu/drm/bridge/cadence/cdns-dsi-core.h    | 13 +++++
>   .../gpu/drm/bridge/cadence/cdns-dsi-j721e.c   | 51 +++++++++++++++++++
>   .../gpu/drm/bridge/cadence/cdns-dsi-j721e.h   | 16 ++++++
>   6 files changed, 125 insertions(+), 1 deletion(-)
>   create mode 100644 drivers/gpu/drm/bridge/cadence/cdns-dsi-j721e.c
>   create mode 100644 drivers/gpu/drm/bridge/cadence/cdns-dsi-j721e.h

Reviewed-by: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>

  Tomi