| Message ID | 20200414151955.311949-6-adrian.ratiu@collabora.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Genericize DW MIPI DSI bridge and add i.MX 6 driver | expand |
Hi Adrian, Thank you for the patch. On Tue, Apr 14, 2020 at 06:19:52PM +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@kernel.org> > Cc: Neil Armstrong <narmstrong@baylibre.com> > Cc: Fabio Estevam <festevam@gmail.com> > Cc: devicetree@vger.kernel.org > Tested-by: Adrian Pop <pop.adrian61@gmail.com> > Tested-by: Arnaud Ferraris <arnaud.ferraris@collabora.com> > Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.com> > Signed-off-by: Martyn Welch <martyn.welch@collabora.com> > Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com> > --- > 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 | 139 ++++++++++++++++++ > 1 file changed, 139 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 000000000000..10e289ea219a > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/imx/fsl,mipi-dsi-imx6.yaml > @@ -0,0 +1,139 @@ > +# 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@collabora.com> > + > +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. Not necessarily a prerequisite for this patch, but it would be nice to get that converted to yaml, and included here with allOf: $ref: ../bridge/snps,dw-mipi-dsi.yaml# (assuming that's how the file will be called). > + > +properties: > + 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 control register. Could you please wrap liens at a 80 columns boundary ? > + $ref: /schemas/types.yaml#/definitions/phandle > + > + ports: > + type: object > + description: | > + A node containing DSI input & output port nodes with endpoint > + definitions as documented in > + Documentation/devicetree/bindings/media/video-interfaces.txt > + Documentation/devicetree/bindings/graph.txt > + properties: You should add '#address-cells': const: 1 '#size-cells': const: 0 > + port@0: > + type: object > + description: > + DSI input port node, connected to the ltdc rgb output port. > + > + port@1: > + type: object > + description: > + DSI output port node, connected to a panel or a bridge input port" Should this be "RGB output port node" ? And s/"/./ And here you should add additionalProperties: false > + > +patternProperties: > + "^panel@[0-3]$": > + type: object > + description: | > + A node containing the panel or bridge description as documented in > + Documentation/devicetree/bindings/display/mipi-dsi-bus.txt > + properties: > + port: > + type: object > + description: > + Panel or bridge port node, connected to the DSI output port (port@1) Does this belong here ? I think the port property for the panel needs to be described in the panel's binding instead. > + > + "#address-cells": > + const: 1 > + > + "#size-cells": > + const: 0 These two properties are not pattern properties, right ? Should they be listed under the properties above ? > + > +required: > + - "#address-cells" > + - "#size-cells" > + - compatible > + - reg > + - interrupts > + - clocks > + - clock-names > + - ports > + > +additionalProperties: false > + > +examples: > + - |+ > + #include <dt-bindings/interrupt-controller/arm-gic.h> > + #include <dt-bindings/clock/imx6qdl-clock.h> > + #include <dt-bindings/gpio/gpio.h> Alphabetical order ? > + > + 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@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>; > + }; > + }; > + }; > + }; > + }; > + > +...
On Tue, 14 Apr 2020, Laurent Pinchart <laurent.pinchart@ideasonboard.com> wrote: > Hi Adrian, > > Thank you for the patch. Hi Laurent, Thank you for the review - you raised some good points which will be addressed in the next revision (will leave this on review a bit more). I will also convert the dw_mipi_dsi.txt to yaml as you suggest and send that as a separate patch. Best wishes, Adrian > > On Tue, Apr 14, 2020 at 06:19:52PM +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@kernel.org> Cc: >> Neil Armstrong <narmstrong@baylibre.com> Cc: Fabio Estevam >> <festevam@gmail.com> Cc: devicetree@vger.kernel.org Tested-by: >> Adrian Pop <pop.adrian61@gmail.com> Tested-by: Arnaud Ferraris >> <arnaud.ferraris@collabora.com> Signed-off-by: Sjoerd Simons >> <sjoerd.simons@collabora.com> Signed-off-by: Martyn Welch >> <martyn.welch@collabora.com> Signed-off-by: Adrian Ratiu >> <adrian.ratiu@collabora.com> --- 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 | 139 >> ++++++++++++++++++ 1 file changed, 139 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 000000000000..10e289ea219a --- >> /dev/null +++ >> b/Documentation/devicetree/bindings/display/imx/fsl,mipi-dsi-imx6.yaml >> @@ -0,0 +1,139 @@ +# 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@collabora.com> + >> +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. > > Not necessarily a prerequisite for this patch, but it would be > nice to get that converted to yaml, and included here with > > allOf: > $ref: ../bridge/snps,dw-mipi-dsi.yaml# > > (assuming that's how the file will be called). > Yes, I will do this conversion but in a separate patch to avoid making this series bigger. Thanks, Adrian >> + >> +properties: >> + 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 control register. > > Could you please wrap liens at a 80 columns boundary ? > >> + $ref: /schemas/types.yaml#/definitions/phandle >> + >> + ports: >> + type: object >> + description: | >> + A node containing DSI input & output port nodes with endpoint >> + definitions as documented in >> + Documentation/devicetree/bindings/media/video-interfaces.txt >> + Documentation/devicetree/bindings/graph.txt >> + properties: > > You should add > > '#address-cells': > const: 1 > > '#size-cells': > const: 0 > >> + port@0: >> + type: object >> + description: >> + DSI input port node, connected to the ltdc rgb output port. >> + >> + port@1: >> + type: object >> + description: >> + DSI output port node, connected to a panel or a bridge input port" > > > Should this be "RGB output port node" ? And s/"/./ > > And here you should add > > additionalProperties: false > >> + >> +patternProperties: >> + "^panel@[0-3]$": >> + type: object >> + description: | >> + A node containing the panel or bridge description as documented in >> + Documentation/devicetree/bindings/display/mipi-dsi-bus.txt >> + properties: >> + port: >> + type: object >> + description: >> + Panel or bridge port node, connected to the DSI output port (port@1) > > Does this belong here ? I think the port property for the panel needs to > be described in the panel's binding instead. > >> + >> + "#address-cells": >> + const: 1 >> + >> + "#size-cells": >> + const: 0 > > These two properties are not pattern properties, right ? Should they be > listed under the properties above ? > >> + >> +required: >> + - "#address-cells" >> + - "#size-cells" >> + - compatible >> + - reg >> + - interrupts >> + - clocks >> + - clock-names >> + - ports >> + >> +additionalProperties: false >> + >> +examples: >> + - |+ >> + #include <dt-bindings/interrupt-controller/arm-gic.h> >> + #include <dt-bindings/clock/imx6qdl-clock.h> >> + #include <dt-bindings/gpio/gpio.h> > > Alphabetical order ? > >> + >> + 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@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
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 000000000000..10e289ea219a --- /dev/null +++ b/Documentation/devicetree/bindings/display/imx/fsl,mipi-dsi-imx6.yaml @@ -0,0 +1,139 @@ +# 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@collabora.com> + +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. + +properties: + 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 control register. + $ref: /schemas/types.yaml#/definitions/phandle + + ports: + type: object + description: | + A node containing DSI input & output port nodes with endpoint + definitions as documented in + Documentation/devicetree/bindings/media/video-interfaces.txt + Documentation/devicetree/bindings/graph.txt + properties: + port@0: + type: object + description: + DSI input port node, connected to the ltdc rgb output port. + + port@1: + type: object + description: + DSI output port node, connected to a panel or a bridge input port" + +patternProperties: + "^panel@[0-3]$": + type: object + description: | + A node containing the panel or bridge description as documented in + Documentation/devicetree/bindings/display/mipi-dsi-bus.txt + properties: + port: + type: object + description: + Panel or bridge port node, connected to the DSI output port (port@1) + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + +required: + - "#address-cells" + - "#size-cells" + - compatible + - reg + - interrupts + - clocks + - clock-names + - ports + +additionalProperties: false + +examples: + - |+ + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/clock/imx6qdl-clock.h> + #include <dt-bindings/gpio/gpio.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@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>; + }; + }; + }; + }; + }; + +...