From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: chunkuang.hu@kernel.org, robh@kernel.org,
krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org,
p.zabel@pengutronix.de, airlied@gmail.com, daniel@ffwll.ch,
maarten.lankhorst@linux.intel.com, mripard@kernel.org,
tzimmermann@suse.de, matthias.bgg@gmail.com,
shawn.sung@mediatek.com, yu-chang.lee@mediatek.com,
ck.hu@mediatek.com, jitao.shi@mediatek.com,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org,
linux-mediatek@lists.infradead.org,
linux-arm-kernel@lists.infradead.org, wenst@chromium.org,
kernel@collabora.com
Subject: Re: [PATCH v2 1/3] dt-bindings: display: mediatek: Add OF graph support for board path
Date: Tue, 9 Apr 2024 17:41:43 +0200 [thread overview]
Message-ID: <8600acf8-7b51-456b-8a81-4233cfd6f121@collabora.com> (raw)
In-Reply-To: <oe75tx35rd27r2a24ofdxfaqwr53tylfp5fwz3nrwc2uz6nmrs@vwc2krbpy3fh>
Il 09/04/24 17:20, Dmitry Baryshkov ha scritto:
> On Tue, Apr 09, 2024 at 02:02:09PM +0200, AngeloGioacchino Del Regno wrote:
>> The display IPs in MediaTek SoCs support being interconnected with
>> different instances of DDP IPs (for example, merge0 or merge1) and/or
>> with different DDP IPs (for example, rdma can be connected with either
>> color, dpi, dsi, merge, etc), forming a full Display Data Path that
>> ends with an actual display.
>>
>> The final display pipeline is effectively board specific, as it does
>> depend on the display that is attached to it, and eventually on the
>> sensors supported by the board (for example, Adaptive Ambient Light
>> would need an Ambient Light Sensor, otherwise it's pointless!), other
>> than the output type.
>
> With the color and gamma being in play, should the configuration be
> board-driver or rather use-case driven with the driver being able to
> reroute some of the blocks at runtime?
>
The driver can already set some blocks to "BYPASS MODE" at runtime, meaning
that those will work as simple pass-through, performing *no* processing at
all, so that's addressed from the very beginning.
This doesn't mean that a specific pipeline must always support the "DISP_GAMMA"
or the "DISP_CCOLOR" block(s) alone, or together, or in combination with another
specific block.
For any other question, clarification, etc, I'm here :-)
Cheers!
>>
>> Add support for OF graphs to most of the MediaTek DDP (display) bindings
>> to add flexibility to build custom hardware paths, hence enabling board
>> specific configuration of the display pipeline and allowing to finally
>> migrate away from using hardcoded paths.
>>
>> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
>
next prev parent reply other threads:[~2024-04-09 15:41 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-09 12:02 [PATCH v2 0/3] drm/mediatek: Add support for OF graphs AngeloGioacchino Del Regno
2024-04-09 12:02 ` [PATCH v2 1/3] dt-bindings: display: mediatek: Add OF graph support for board path AngeloGioacchino Del Regno
2024-04-09 15:20 ` Dmitry Baryshkov
2024-04-09 15:41 ` AngeloGioacchino Del Regno [this message]
2024-04-09 15:45 ` Dmitry Baryshkov
2024-04-19 7:40 ` AngeloGioacchino Del Regno
2024-04-10 19:03 ` Rob Herring
2024-04-19 7:44 ` AngeloGioacchino Del Regno
2024-04-09 12:02 ` [PATCH v2 2/3] dt-bindings: arm: mediatek: mmsys: " AngeloGioacchino Del Regno
2024-04-10 19:15 ` Rob Herring
2024-04-19 7:54 ` AngeloGioacchino Del Regno
2024-04-25 2:23 ` CK Hu (胡俊光)
2024-05-02 8:50 ` AngeloGioacchino Del Regno
2024-05-07 6:59 ` CK Hu (胡俊光)
2024-05-07 14:07 ` AngeloGioacchino Del Regno
2024-05-08 7:19 ` CK Hu (胡俊光)
2024-05-08 13:03 ` AngeloGioacchino Del Regno
2024-05-09 5:42 ` CK Hu (胡俊光)
2024-05-09 9:27 ` AngeloGioacchino Del Regno
2024-05-10 9:34 ` CK Hu (胡俊光)
2024-05-10 10:14 ` AngeloGioacchino Del Regno
2024-05-13 6:15 ` CK Hu (胡俊光)
2024-05-13 13:44 ` AngeloGioacchino Del Regno
2024-05-13 16:28 ` Conor Dooley
2024-05-16 7:27 ` AngeloGioacchino Del Regno
2024-04-09 12:02 ` [PATCH v2 3/3] drm/mediatek: Implement OF graphs support for display paths AngeloGioacchino Del Regno
2024-05-06 9:11 ` Michael Walle
2024-05-06 12:58 ` AngeloGioacchino Del Regno
2024-04-30 10:17 ` [PATCH v2 0/3] drm/mediatek: Add support for OF graphs Alexandre Mergnat
2024-04-30 11:33 ` AngeloGioacchino Del Regno
2024-05-02 16:53 ` Alexandre Mergnat
2024-05-14 9:46 ` Alexandre Mergnat
2024-05-14 12:00 ` AngeloGioacchino Del Regno
2024-05-06 10:02 ` Michael Walle
2024-05-06 10:56 ` AngeloGioacchino Del Regno
2024-05-06 11:22 ` AngeloGioacchino Del Regno
2024-05-06 13:17 ` Michael Walle
2024-05-06 14:18 ` AngeloGioacchino Del Regno
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