Hi Adrian, Thank you for the patch. On Tue, Apr 21, 2020 at 07:16:07PM +0300, Adrian Ratiu wrote: > This provides an example DT binding for the MIPI DSI host controller > present on the i.MX6 SoC based on Synopsis DesignWare v1.01 IP. > > Cc: Rob Herring <robh@xxxxxxxxxx> > Cc: Neil Armstrong <narmstrong@xxxxxxxxxxxx> > Cc: Fabio Estevam <festevam@xxxxxxxxx> > Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > Cc: devicetree@xxxxxxxxxxxxxxx > Tested-by: Adrian Pop <pop.adrian61@xxxxxxxxx> > Tested-by: Arnaud Ferraris <arnaud.ferraris@xxxxxxxxxxxxx> > Signed-off-by: Sjoerd Simons <sjoerd.simons@xxxxxxxxxxxxx> > Signed-off-by: Martyn Welch <martyn.welch@xxxxxxxxxxxxx> > Signed-off-by: Adrian Ratiu <adrian.ratiu@xxxxxxxxxxxxx> > --- > Changes since v6: > - Added ref to the newly created snps,dw-mipi-dsi.yaml (Laurent) > - Moved *-cells properties outside patternProperties (Laurent) > - Removed the panel port documentation (Laurent) > - Wrapped lines at 80 chars, typo fixes, sort includes (Laurent) > > Changes since v5: > - Fixed missing reg warning (Fabio) > - Updated dt-schema and fixed warnings (Rob) > > Changes since v4: > - Fixed yaml binding to pass `make dt_binding_check dtbs_check` > and addressed received binding feedback (Rob) > > Changes since v3: > - Added commit message (Neil) > - Converted to yaml format (Neil) > - Minor dt node + driver fixes (Rob) > - Added small panel example to the host controller binding > > Changes since v2: > - Fixed commit tags (Emil) > --- > .../display/imx/fsl,mipi-dsi-imx6.yaml | 135 ++++++++++++++++++ > 1 file changed, 135 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/imx/fsl,mipi-dsi-imx6.yaml > > diff --git a/Documentation/devicetree/bindings/display/imx/fsl,mipi-dsi-imx6.yaml b/Documentation/devicetree/bindings/display/imx/fsl,mipi-dsi-imx6.yaml > new file mode 100644 > index 0000000000000..b73e3ae33a852 > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/imx/fsl,mipi-dsi-imx6.yaml > @@ -0,0 +1,135 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/display/imx/fsl,mipi-dsi-imx6.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Freescale i.MX6 DW MIPI DSI Host Controller > + > +maintainers: > + - Adrian Ratiu <adrian.ratiu@xxxxxxxxxxxxx> > + > +description: | > + The i.MX6 DSI host controller is a Synopsys DesignWare MIPI DSI v1.01 > + IP block with a companion PHY IP. > + > + These DT bindings follow the Synopsys DW MIPI DSI bindings defined in > + Documentation/devicetree/bindings/display/bridge/dw_mipi_dsi.txt with > + the following device-specific properties. > + > +allOf: > + - $ref: ../bridge/snps,dw-mipi-dsi.yaml# > + > +properties: > + '#address-cells': > + const: 1 > + > + '#size-cells': > + const: 0 > + > + compatible: > + items: > + - const: fsl,imx6q-mipi-dsi > + - const: snps,dw-mipi-dsi > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + clocks: > + items: > + - description: Module Clock > + - description: DSI bus clock > + > + clock-names: > + items: > + - const: ref > + - const: pclk > + > + fsl,gpr: > + description: > + Phandle to the iomuxc-gpr region containing the multiplexer ctrl register. > + $ref: /schemas/types.yaml#/definitions/phandle > + > + ports: > + type: object > + description: | > + A node containing DSI input & output port nodes with endpoint > + definitions as documented in > + Documentation/devicetree/bindings/media/video-interfaces.txt > + Documentation/devicetree/bindings/graph.txt > + properties: > + port@0: > + type: object > + description: > + DSI input port node, connected to the ltdc rgb output port. > + > + port@1: > + type: object > + description: > + RGB output port node, connected to a panel or a bridge input port. Isn't it the other way around, doesn't the bridge take RGB input and output DSI ? And to be precise, it's not about RGB, but about the input being parallel interface (DSI will also carry RGB). I would add required: - port@0 - port@1 > + > +additionalProperties: false > + > +patternProperties: > + "^panel@[0-3]$": > + type: object > + > +required: > + - "#address-cells" > + - "#size-cells" > + - compatible > + - reg > + - interrupts > + - clocks > + - clock-names > + - ports > + > +examples: > + - |+ > + #include <dt-bindings/clock/imx6qdl-clock.h> > + #include <dt-bindings/gpio/gpio.h> > + #include <dt-bindings/interrupt-controller/arm-gic.h> > + > + dsi: dsi@21e0000 { > + #address-cells = <1>; > + #size-cells = <0>; > + compatible = "fsl,imx6q-mipi-dsi", "snps,dw-mipi-dsi"; > + reg = <0x021e0000 0x4000>; > + interrupts = <0 102 IRQ_TYPE_LEVEL_HIGH>; > + fsl,gpr = <&gpr>; > + clocks = <&clks IMX6QDL_CLK_MIPI_CORE_CFG>, > + <&clks IMX6QDL_CLK_MIPI_IPG>; > + clock-names = "ref", "pclk"; > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; port@0 is missing. > + port@1 { > + reg = <1>; > + dsi_out: endpoint { > + remote-endpoint = <&panel_in>; > + }; > + }; > + }; > + > + panel@0 { > + compatible = "sharp,ls032b3sx01"; > + reg = <0>; > + reset-gpios = <&gpio6 8 GPIO_ACTIVE_LOW>; > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + port@0 { > + reg = <0>; > + panel_in: endpoint { > + remote-endpoint = <&dsi_out>; > + }; > + }; > + }; > + }; > + }; > + > +... -- Regards, Laurent Pinchart
