Hi Alexander, Thanks for your comments, > -----Original Message----- > From: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx> > Sent: 2023年6月16日 17:32 > To: andrzej.hajda@xxxxxxxxx; neil.armstrong@xxxxxxxxxx; > robert.foss@xxxxxxxxxx; Laurent.pinchart@xxxxxxxxxxxxxxxx; > jonas@xxxxxxxxx; jernej.skrabec@xxxxxxxxx; airlied@xxxxxxxxx; > daniel@xxxxxxxx; robh+dt@xxxxxxxxxx; krzysztof.kozlowski+dt@xxxxxxxxxx; > shawnguo@xxxxxxxxxx; s.hauer@xxxxxxxxxxxxxx; festevam@xxxxxxxxx; > vkoul@xxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx; > devicetree@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; > linux-kernel@xxxxxxxxxxxxxxx; linux-phy@xxxxxxxxxxxxxxxxxxx > Cc: Oliver Brown <oliver.brown@xxxxxxx>; Sandor Yu <sandor.yu@xxxxxxx>; > dl-linux-imx <linux-imx@xxxxxxx>; kernel@xxxxxxxxxxxxxx; Sandor Yu > <sandor.yu@xxxxxxx> > Subject: [EXT] Re: [PATCH v6 2/8] dt-bindings: display: bridge: Add Cadence > MHDP8501 HDMI and DP > > Caution: This is an external email. Please take care when clicking links or > opening attachments. When in doubt, report the message using the 'Report > this email' button > > > Hi Sandor, > > Am Donnerstag, 15. Juni 2023, 03:38:12 CEST schrieb Sandor Yu: > > Add bindings for Cadence MHDP8501 DisplayPort and HDMI driver. > > > > Signed-off-by: Sandor Yu <Sandor.yu@xxxxxxx> > > --- > > .../display/bridge/cdns,mhdp8501.yaml | 105 > ++++++++++++++++++ > > 1 file changed, 105 insertions(+) > > create mode 100644 > > Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.yaml > > > > diff --git > > a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.yaml > > b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.yaml > > new file mode 100644 index 000000000000..a54756815e6f > > --- /dev/null > > +++ > b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.y > > +++ aml > > @@ -0,0 +1,105 @@ > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) %YAML 1.2 > > +--- > > +$id: > > +http://devi/ > > > +cetree.org%2Fschemas%2Fdisplay%2Fbridge%2Fcdns%2Cmhdp8501.yaml% > 23&dat > > > +a=05%7C01%7CSandor.yu%40nxp.com%7C6ef2c732b3674cb2896c08db6e4 > c827b%7C > > > +686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C63822504710561225 > 8%7CUnkno > > > +wn%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1 > haWwi > > > +LCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=DGYYt2LQ%2FhlNBVd2m0s > aXTm9IoKKwn > > +X7CTTplhbLxcI%3D&reserved=0 > > +$schema: > > +http://devi/ > > > +cetree.org%2Fmeta-schemas%2Fcore.yaml%23&data=05%7C01%7CSandor. > yu%40n > > > +xp.com%7C6ef2c732b3674cb2896c08db6e4c827b%7C686ea1d3bc2b4c6fa9 > 2cd99c5 > > > +c301635%7C0%7C0%7C638225047105612258%7CUnknown%7CTWFpbGZs > b3d8eyJWIjoi > > > +MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3 > 000%7C% > > > +7C%7C&sdata=SkTFYM7HHgJmFUkyo3Ftf%2B8FdGqlnty0Ch6ggwSPeLY%3D > &reserved > > +=0 > > + > > +title: Cadence MHDP8501 Displayport bridge > > + > > +maintainers: > > + - Sandor Yu <Sandor.yu@xxxxxxx> > > + > > +description: > > + The Cadence MHDP8501 Displayport/HDMI TX interface. > > + > > +properties: > > + compatible: > > + enum: > > + - cdns,mhdp8501-dp > > + - cdns,mhdp8501-hdmi > > + - fsl,imx8mq-mhdp8501-dp > > + - fsl,imx8mq-mhdp8501-hdmi > > + > > + reg: > > + maxItems: 1 > > + > > + clocks: > > + maxItems: 1 > > + description: MHDP8501 DP/HDMI APB clock. > > + > > + phys: > > + maxItems: 1 > > + > > + interrupts: > > + items: > > + - description: Hotplug cable plugin. > > + - description: Hotplug cable plugout. > > + > > + interrupt-names: > > + items: > > + - const: plug_in > > + - const: plug_out > > + > > + ports: > > + $ref: /schemas/graph.yaml#/properties/ports > > + > > + properties: > > + port@0: > > + $ref: /schemas/graph.yaml#/properties/port > > + description: > > + Input port from display controller output. > > + port@1: > > + $ref: /schemas/graph.yaml#/properties/port > > + description: > > + Output port to DP/HDMI connector. > > + > > + required: > > + - port@0 > > + - port@1 > > You mark these ports as required, but apparently the drivers do not use them, > AFAICT. E.g. missing port@1 is not resulting in an error, at lease for HDMI one. > Yes, port@1 is not really needed, I add it just to follow HDMI/DP framework that same as other platforms in community code. B.R Sandor > Best regards, > Alexander > > > + > > +required: > > + - compatible > > + - reg > > + - clocks > > + - interrupts > > + - interrupt-names > > + - phys > > + - ports > > + > > +additionalProperties: false > > + > > +examples: > > + - | > > + #include <dt-bindings/clock/imx8mq-clock.h> > > + #include <dt-bindings/interrupt-controller/arm-gic.h> > > + > > + mhdp_dp: dp-bridge@32c00000 { > > + compatible = "fsl,imx8mq-mhdp8501-dp"; > > + reg = <0x32c00000 0x100000>; > > + interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>, > > + <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>; > > + interrupt-names = "plug_in", "plug_out"; > > + clocks = <&clk IMX8MQ_CLK_DISP_APB_ROOT>; > > + phys = <&dp_phy>; > > + > > + ports { > > + #address-cells = <1>; > > + #size-cells = <0>; > > + > > + port@0 { > > + reg = <0>; > > + > > + mhdp_in: endpoint { > > + remote-endpoint = <&dcss_out>; > > + }; > > + }; > > + > > + port@1 { > > + reg = <1>; > > + > > + mhdp_out: endpoint { > > + remote-endpoint = <&dp_con>; > > + }; > > + }; > > + }; > > + }; > > > -- > TQ-Systems GmbH | Mühlstraße 2, Gut Delling | 82229 Seefeld, Germany > Amtsgericht München, HRB 105018 > Geschäftsführer: Detlef Schneider, Rüdiger Stahl, Stefan Schneider > http://www.tq/ > -group.com%2F&data=05%7C01%7CSandor.yu%40nxp.com%7C6ef2c732b367 > 4cb2896c08db6e4c827b%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C > 0%7C638225047105612258%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4w > LjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C > %7C%7C&sdata=xJdLi2HJ72ShBwT%2FfUdZ3uLx%2FIJEPmTQJHGVXe0JVik%3 > D&reserved=0 >
