From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: chunkuang.hu@kernel.org
Cc: 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,
angelogioacchino.delregno@collabora.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: [PATCH v2 0/3] drm/mediatek: Add support for OF graphs
Date: Tue, 9 Apr 2024 14:02:08 +0200 [thread overview]
Message-ID: <20240409120211.321153-1-angelogioacchino.delregno@collabora.com> (raw)
Changes in v2:
- Fixed wrong `required` block indentation in commit [2/3]
The display IPs in MediaTek SoCs are *VERY* flexible and those 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.
This series was born because of an issue that I've found while enabling
support for MT8195/MT8395 boards with DSI output as main display: the
current mtk_drm_route variations would not work as currently, the driver
hardcodes a display path for Chromebooks, which have a DisplayPort panel
with DSC support, instead of a DSI panel without DSC support.
There are other reasons for which I wrote this series, and I find that
hardcoding those paths - when a HW path is clearly board-specific - is
highly suboptimal. Also, let's not forget about keeping this driver from
becoming a huge list of paths for each combination of SoC->board->disp
and... this and that.
For more information, please look at the commit description for each of
the commits included in this series.
Please don't mind about the missing OVL_ADAPTOR support for OF graphs
in this series: that needs a bit more thinking and a bit more work, and
will come in a second series that will go on top of this a bit later,
as the OF graph support for *at least* the primary display is essential
*right now* to enable support for the MT8195/8395 EVK, Kontron SoM,
Radxa NIO-12L and all of the other non-Chromebook boards to co-exist
with Chromebooks.
Besides, this is also a valid option for MT8188 Chromebooks which might
have different DSI-or-eDP displays depending on the model (as far as I
can see from the mtk_drm_route attempt for this SoC that is already
present in this driver).
This series was tested on MT8195 Cherry Tomato and on MT8395 Radxa
NIO-12L with both hardcoded paths, OF graph support and partially
hardcoded paths (meaning main display through OF graph and external
display hardcoded, because of OVL_ADAPTOR).
AngeloGioacchino Del Regno (3):
dt-bindings: display: mediatek: Add OF graph support for board path
dt-bindings: arm: mediatek: mmsys: Add OF graph support for board path
drm/mediatek: Implement OF graphs support for display paths
.../bindings/arm/mediatek/mediatek,mmsys.yaml | 23 ++
.../display/mediatek/mediatek,aal.yaml | 40 +++
.../display/mediatek/mediatek,ccorr.yaml | 21 ++
.../display/mediatek/mediatek,color.yaml | 22 ++
.../display/mediatek/mediatek,dither.yaml | 22 ++
.../display/mediatek/mediatek,dpi.yaml | 25 +-
.../display/mediatek/mediatek,dsc.yaml | 24 ++
.../display/mediatek/mediatek,dsi.yaml | 27 +-
.../display/mediatek/mediatek,ethdr.yaml | 22 ++
.../display/mediatek/mediatek,gamma.yaml | 19 ++
.../display/mediatek/mediatek,merge.yaml | 23 ++
.../display/mediatek/mediatek,od.yaml | 22 ++
.../display/mediatek/mediatek,ovl-2l.yaml | 22 ++
.../display/mediatek/mediatek,ovl.yaml | 22 ++
.../display/mediatek/mediatek,postmask.yaml | 21 ++
.../display/mediatek/mediatek,rdma.yaml | 22 ++
.../display/mediatek/mediatek,ufoe.yaml | 21 ++
drivers/gpu/drm/mediatek/mtk_dpi.c | 16 +-
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 255 ++++++++++++++++--
drivers/gpu/drm/mediatek/mtk_drm_drv.h | 2 +-
drivers/gpu/drm/mediatek/mtk_dsi.c | 10 +-
21 files changed, 645 insertions(+), 36 deletions(-)
--
2.44.0
next reply other threads:[~2024-04-09 12:02 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-09 12:02 AngeloGioacchino Del Regno [this message]
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
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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