DPI is part of the display / multimedia block in MediaTek SoCs, and
always have a power-domain (at least in the upstream device-trees).
Add the power-domains property to the binding example.
Fixes: 9273cf7d39 ("dt-bindings: display: mediatek: convert the dpi bindings to yaml")
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20231023-display-support-v7-1-6703f3e26831@baylibre.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Add compatibles for the Digital Parallel Interface (DPI) block
found in the MT8195 and MT8188 SoCs: inside of the chip, this one
is directly connected to the HDMI block.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20250217154836.108895-2-angelogioacchino.delregno@collabora.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
1. Add support for OF graphs
2. Fix child node refcount handling and use scoped
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Merge tag 'mediatek-drm-next-6.13' of https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux into drm-next
Mediatek DRM Next for Linux 6.13
1. Add support for OF graphs
2. Fix child node refcount handling and use scoped
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241104124103.8041-1-chunkuang.hu@kernel.org
The MediaTek DPI module is typically associated with one of the
following multimedia power domains:
- POWER_DOMAIN_DISPLAY
- POWER_DOMAIN_VDOSYS
- POWER_DOMAIN_MM
The specific power domain used varies depending on the SoC design.
These power domains are shared by multiple devices within the SoC.
In most cases, these power domains are enabled by other devices.
As a result, the DPI module of legacy SoCs often functions correctly
even without explicit configuration.
It is recommended to explicitly add the appropriate power domain
property to the DPI node in the device tree. Hence drop the
compatible checking for specific SoCs.
Fixes: 5474d49b2f ("dt-bindings: display: mediatek: dpi: Add power domains")
Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
Signed-off-by: Pablo Sun <pablo.sun@mediatek.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20241003030919.17980-4-macpaul.lin@mediatek.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
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.
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.
Please note that - while this commit retains retro-compatibility with
old device trees - it will break the ABI for mediatek,dsi and for
mediatek,dpi for the sake of consistency between the `ports` in all
MediaTek DRM drivers versus DRM bridge drivers as in the previous
binding, MediaTek was using `port` (implicitly, port@0) as an OUTPUT,
while now the first port is an INPUT, and the second one is an OUTPUT,
which is consistent with other DRM drivers which can be chained to
drm/mediatek.
As for maintainability concerns, I am aware that the old device tree
will not be actively tested anymore, but retrocompatibility breakages
will *not* be more likely to happen in the future because any addition
to the graph (new drivers) will be done only for features present on
newer SoCs, keeping the old ones (and their default pipeline) untouched.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>
Tested-by: Alexandre Mergnat <amergnat@baylibre.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Tested-by: Michael Walle <mwalle@kernel.org> # on kontron-sbc-i1200
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20241017103809.156056-2-angelogioacchino.delregno@collabora.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Add power domain binding to the mediatek DPI controller
for MT8186.
Also, add power domain binding for other SoCs like
MT6795 and MT8173 that already had power domain property.
Signed-off-by: Rohit Agarwal <rohiagar@chromium.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20240830084544.2898512-2-rohiagar@chromium.org/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Add dt-binding documentation of dpi for MediaTek MT8365 SoC.
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20231023-display-support-v4-7-ed82eb168fb1@baylibre.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Add a compatible string for the MediaTek Helio X10 MT6795 SoC, using
the same parameters as MT8183.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20230412112739.160376-4-angelogioacchino.delregno@collabora.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
DP_INTF is similar to DPI but does not have the exact same feature set
or register layouts.
DP_INTF is the sink of the display pipeline that is connected to the
DisplayPort controller and encoder unit. It takes the same clocks as
DPI.
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20220701035845.16458-2-rex-bc.chen@mediatek.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
To avoid failure of dt_binding_check perform a slight refactoring
of the examples: the main block is kept, but that required fixing
the address and size cells, plus the inclusion of missing dt-bindings
headers, required to parse some of the values assigned to various
properties.
Fixes: 4ed545e7d1 ("dt-bindings: display: mediatek: disp: split each block to individual yaml")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: jason-jh.lin <jason-jh.lin@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Tested-by: jason-jh.lin <jason-jh.lin@medaitek.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220309134702.9942-5-jason-jh.lin@mediatek.com
Add compatible "mediatek,mt8192-dpi" for the mt8192 dpi.
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Update the mediatek,dpi binding to use the graph schema. Missed
this one from the mass conversion since it's not part of drm-misc.
Cc: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Jitao shi <jitao.shi@mediatek.com>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-mediatek@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Convert display/mediatek/mediatek,dpi.txt to
display/mediatek/mediatek,dpi.yaml and remove the old text
bindings.
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
