On Sun, Jan 24, 2021 at 04:08:34PM +0100, Adrien Grassein wrote: > Lontium LT8912 is a DSI to HDMI bridge. > > Signed-off-by: Adrien Grassein <adrien.grassein@xxxxxxxxx> > --- > .../display/bridge/lontium,lt8912.yaml | 92 +++++++++++++++++++ > MAINTAINERS | 5 + > 2 files changed, 97 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml > > diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml > new file mode 100644 > index 000000000000..ed1a6ddaab2f > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml > @@ -0,0 +1,92 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/display/bridge/lontium,lt8912.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Lontium LT8912 MIPI to HDMI Bridge > + > +maintainers: > + - Adrien Grassein <adrien.grassein@xxxxxxxxx> > + > +description: | > + The LT8912 is a bridge device which convert DSI to HDMI > + > +properties: > + compatible: > + enum: > + - lontium,lt8912 > + > + reg: > + maxItems: 1 > + > + ddc-i2c-bus: This belongs in an hdmi-connector node. > + maxItems: 1 > + description: i2c bus used to read EDID of the connected display. > + > + dsi-lanes: > + maxItems: 1 > + description: dsi lanes count interconnected with lt8912. 'data-lanes' in the graph is the standard way to do this. You'll need video-interfaces.yaml which is pending in the media tree. > + > + reset-gpios: > + maxItems: 1 > + description: GPIO connected to active high RESET pin. > + > + ports: > + $ref: /schemas/graph.yaml#/properties/ports > + > + properties: > + port@0: > + $ref: /schemas/graph.yaml#/properties/port > + description: > + Primary MIPI port-1 for MIPI input You're going to need a port for the connector. > + > + required: > + - port@0 > + > +required: > + - compatible > + - ddc-i2c-bus > + - dsi-lanes > + - reg > + - reset-gpios > + - ports > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/gpio/gpio.h> > + > + i2c4 { > + #address-cells = <1>; > + #size-cells = <0>; > + > + hdmi-bridge@48 { > + compatible = "lontium,lt8912"; > + reg = <0x48>; > + reset-gpios = <&max7323 0 GPIO_ACTIVE_LOW>; > + dsi-lanes = <4>; > + ddc-i2c-bus = <&ddc_i2c_bus>; > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + > + port@0 { > + reg = <0>; > + > + hdmi_out_in: endpoint { > + remote-endpoint = <&mipi_dsi_out>; > + }; > + }; > + }; > + }; > + }; > + > + ddc_i2c_bus: i2c5 { > + #address-cells = <1>; > + #size-cells = <0>; > + }; > + > +... > diff --git a/MAINTAINERS b/MAINTAINERS > index 5aa18cbfb883..01e7e356bfac 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -10472,6 +10472,11 @@ S: Maintained > T: git git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git > F: drivers/hid/hid-lg-g15.c > > +LONTIUM LT8912 MIPI TO HDMI BRIDGE > +M: Adrien Grassein <adrien.grassein@xxxxxxxxx> > +S: Maintained > +F: Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml > + > LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI) > M: Sathya Prakash <sathya.prakash@xxxxxxxxxxxx> > M: Sreekanth Reddy <sreekanth.reddy@xxxxxxxxxxxx> > -- > 2.25.1 > _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
