The Northwest Logic MIPI DSI IP core can be found in NXPs i.MX8 SoCs.
Signed-off-by: Guido Günther <[email protected]>
Tested-by: Robert Chiras <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Acked-by: Sam Ravnborg <[email protected]>
---
.../bindings/display/bridge/nwl-dsi.yaml | 216 ++++++++++++++++++
1 file changed, 216 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
diff --git a/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml b/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
new file mode 100644
index 000000000000..ec1e7e12719d
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
@@ -0,0 +1,216 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/nwl-dsi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Northwest Logic MIPI-DSI controller on i.MX SoCs
+
+maintainers:
+ - Guido Gúnther <[email protected]>
+ - Robert Chiras <[email protected]>
+
+description: |
+ NWL MIPI-DSI host controller found on i.MX8 platforms. This is a dsi bridge for
+ the SOCs NWL MIPI-DSI host controller.
+
+properties:
+ compatible:
+ const: fsl,imx8mq-nwl-dsi
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ clocks:
+ items:
+ - description: DSI core clock
+ - description: RX_ESC clock (used in escape mode)
+ - description: TX_ESC clock (used in escape mode)
+ - description: PHY_REF clock
+ - description: LCDIF clock
+
+ clock-names:
+ items:
+ - const: core
+ - const: rx_esc
+ - const: tx_esc
+ - const: phy_ref
+ - const: lcdif
+
+ mux-controls:
+ description:
+ mux controller node to use for operating the input mux
+
+ phys:
+ maxItems: 1
+ description:
+ A phandle to the phy module representing the DPHY
+
+ phy-names:
+ items:
+ - const: dphy
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ items:
+ - description: dsi byte reset line
+ - description: dsi dpi reset line
+ - description: dsi esc reset line
+ - description: dsi pclk reset line
+
+ reset-names:
+ items:
+ - const: byte
+ - const: dpi
+ - const: esc
+ - const: pclk
+
+ ports:
+ type: object
+ description:
+ A node containing DSI input & output port nodes with endpoint
+ definitions as documented in
+ Documentation/devicetree/bindings/graph.txt.
+ properties:
+ port@0:
+ type: object
+ description:
+ Input port node to receive pixel data from the
+ display controller. Exactly one endpoint must be
+ specified.
+ properties:
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ endpoint@0:
+ description: sub-node describing the input from LCDIF
+ type: object
+
+ endpoint@1:
+ description: sub-node describing the input from DCSS
+ type: object
+
+ reg:
+ const: 0
+
+ required:
+ - '#address-cells'
+ - '#size-cells'
+ - reg
+ additionalProperties: false
+
+ port@1:
+ type: object
+ description:
+ DSI output port node to the panel or the next bridge
+ in the chain
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ required:
+ - '#address-cells'
+ - '#size-cells'
+ - port@0
+ - port@1
+
+ additionalProperties: false
+
+patternProperties:
+ "^panel@[0-9]+$":
+ type: object
+
+required:
+ - '#address-cells'
+ - '#size-cells'
+ - clock-names
+ - clocks
+ - compatible
+ - interrupts
+ - mux-controls
+ - phy-names
+ - phys
+ - ports
+ - reg
+ - reset-names
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+
+ #include <dt-bindings/clock/imx8mq-clock.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/reset/imx8mq-reset.h>
+
+ mipi_dsi: mipi_dsi@30a00000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,imx8mq-nwl-dsi";
+ reg = <0x30A00000 0x300>;
+ clocks = <&clk IMX8MQ_CLK_DSI_CORE>,
+ <&clk IMX8MQ_CLK_DSI_AHB>,
+ <&clk IMX8MQ_CLK_DSI_IPG_DIV>,
+ <&clk IMX8MQ_CLK_DSI_PHY_REF>,
+ <&clk IMX8MQ_CLK_LCDIF_PIXEL>;
+ clock-names = "core", "rx_esc", "tx_esc", "phy_ref", "lcdif";
+ interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+ mux-controls = <&mux 0>;
+ power-domains = <&pgc_mipi>;
+ resets = <&src IMX8MQ_RESET_MIPI_DSI_RESET_BYTE_N>,
+ <&src IMX8MQ_RESET_MIPI_DSI_DPI_RESET_N>,
+ <&src IMX8MQ_RESET_MIPI_DSI_ESC_RESET_N>,
+ <&src IMX8MQ_RESET_MIPI_DSI_PCLK_RESET_N>;
+ reset-names = "byte", "dpi", "esc", "pclk";
+ phys = <&dphy>;
+ phy-names = "dphy";
+
+ panel@0 {
+ compatible = "rocktech,jh057n00900";
+ reg = <0>;
+ port@0 {
+ panel_in: endpoint {
+ remote-endpoint = <&mipi_dsi_out>;
+ };
+ };
+ };
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ #size-cells = <0>;
+ #address-cells = <1>;
+ reg = <0>;
+ mipi_dsi_in: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&lcdif_mipi_dsi>;
+ };
+ };
+ port@1 {
+ reg = <1>;
+ mipi_dsi_out: endpoint {
+ remote-endpoint = <&panel_in>;
+ };
+ };
+ };
+ };
--
2.23.0
On Fri, Mar 20, 2020 at 3:49 PM Guido Günther <[email protected]> wrote:
>
> The Northwest Logic MIPI DSI IP core can be found in NXPs i.MX8 SoCs.
>
> Signed-off-by: Guido Günther <[email protected]>
> Tested-by: Robert Chiras <[email protected]>
> Reviewed-by: Rob Herring <[email protected]>
> Acked-by: Sam Ravnborg <[email protected]>
Reviewed-by: Fabio Estevam <[email protected]>
Hi Guido.
We discussed this binding briefly on IRC:
19:28 <pinchartl> port 0 is defined as
19:28 <pinchartl> + Input port node to receive pixel data from the
19:28 <pinchartl> + display controller. Exactly one endpoint must be
19:28 <pinchartl> + specified.
19:28 <pinchartl> then there's two endpoints,
On Fri, Mar 20, 2020 at 07:49:09PM +0100, Guido G?nther wrote:
> The Northwest Logic MIPI DSI IP core can be found in NXPs i.MX8 SoCs.
>
> Signed-off-by: Guido G?nther <[email protected]>
> Tested-by: Robert Chiras <[email protected]>
> Reviewed-by: Rob Herring <[email protected]>
> Acked-by: Sam Ravnborg <[email protected]>
> ---
> .../bindings/display/bridge/nwl-dsi.yaml | 216 ++++++++++++++++++
> 1 file changed, 216 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml b/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
> new file mode 100644
> index 000000000000..ec1e7e12719d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
> @@ -0,0 +1,216 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/bridge/nwl-dsi.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Northwest Logic MIPI-DSI controller on i.MX SoCs
> +
> +maintainers:
> + - Guido G?nther <[email protected]>
> + - Robert Chiras <[email protected]>
> +
> +description: |
> + NWL MIPI-DSI host controller found on i.MX8 platforms. This is a dsi bridge for
> + the SOCs NWL MIPI-DSI host controller.
> +
> +properties:
> + compatible:
> + const: fsl,imx8mq-nwl-dsi
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + '#address-cells':
> + const: 1
> +
> + '#size-cells':
> + const: 0
> +
> + clocks:
> + items:
> + - description: DSI core clock
> + - description: RX_ESC clock (used in escape mode)
> + - description: TX_ESC clock (used in escape mode)
> + - description: PHY_REF clock
> + - description: LCDIF clock
> +
> + clock-names:
> + items:
> + - const: core
> + - const: rx_esc
> + - const: tx_esc
> + - const: phy_ref
> + - const: lcdif
> +
> + mux-controls:
> + description:
> + mux controller node to use for operating the input mux
> +
> + phys:
> + maxItems: 1
> + description:
> + A phandle to the phy module representing the DPHY
> +
> + phy-names:
> + items:
> + - const: dphy
> +
> + power-domains:
> + maxItems: 1
> +
> + resets:
> + items:
> + - description: dsi byte reset line
> + - description: dsi dpi reset line
> + - description: dsi esc reset line
> + - description: dsi pclk reset line
> +
> + reset-names:
> + items:
> + - const: byte
> + - const: dpi
> + - const: esc
> + - const: pclk
> +
> + ports:
> + type: object
> + description:
> + A node containing DSI input & output port nodes with endpoint
> + definitions as documented in
> + Documentation/devicetree/bindings/graph.txt.
> + properties:
> + port@0:
> + type: object
> + description:
> + Input port node to receive pixel data from the
> + display controller. Exactly one endpoint must be
> + specified.
> + properties:
> + '#address-cells':
> + const: 1
> +
> + '#size-cells':
> + const: 0
> +
> + endpoint@0:
> + description: sub-node describing the input from LCDIF
> + type: object
> +
> + endpoint@1:
> + description: sub-node describing the input from DCSS
> + type: object
> +
> + reg:
> + const: 0
> +
> + required:
> + - '#address-cells'
> + - '#size-cells'
> + - reg
> + additionalProperties: false
> +
> + port@1:
> + type: object
> + description:
> + DSI output port node to the panel or the next bridge
> + in the chain
> +
> + '#address-cells':
> + const: 1
> +
> + '#size-cells':
> + const: 0
> +
> + required:
> + - '#address-cells'
> + - '#size-cells'
> + - port@0
> + - port@1
> +
> + additionalProperties: false
For the casual reader the above confuses.
Assuming the binding is correct, can we have the comment updated.
Sam
> +
> +patternProperties:
> + "^panel@[0-9]+$":
> + type: object
> +
> +required:
> + - '#address-cells'
> + - '#size-cells'
> + - clock-names
> + - clocks
> + - compatible
> + - interrupts
> + - mux-controls
> + - phy-names
> + - phys
> + - ports
> + - reg
> + - reset-names
> + - resets
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> +
> + #include <dt-bindings/clock/imx8mq-clock.h>
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + #include <dt-bindings/reset/imx8mq-reset.h>
> +
> + mipi_dsi: mipi_dsi@30a00000 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + compatible = "fsl,imx8mq-nwl-dsi";
> + reg = <0x30A00000 0x300>;
> + clocks = <&clk IMX8MQ_CLK_DSI_CORE>,
> + <&clk IMX8MQ_CLK_DSI_AHB>,
> + <&clk IMX8MQ_CLK_DSI_IPG_DIV>,
> + <&clk IMX8MQ_CLK_DSI_PHY_REF>,
> + <&clk IMX8MQ_CLK_LCDIF_PIXEL>;
> + clock-names = "core", "rx_esc", "tx_esc", "phy_ref", "lcdif";
> + interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
> + mux-controls = <&mux 0>;
> + power-domains = <&pgc_mipi>;
> + resets = <&src IMX8MQ_RESET_MIPI_DSI_RESET_BYTE_N>,
> + <&src IMX8MQ_RESET_MIPI_DSI_DPI_RESET_N>,
> + <&src IMX8MQ_RESET_MIPI_DSI_ESC_RESET_N>,
> + <&src IMX8MQ_RESET_MIPI_DSI_PCLK_RESET_N>;
> + reset-names = "byte", "dpi", "esc", "pclk";
> + phys = <&dphy>;
> + phy-names = "dphy";
> +
> + panel@0 {
> + compatible = "rocktech,jh057n00900";
> + reg = <0>;
> + port@0 {
> + panel_in: endpoint {
> + remote-endpoint = <&mipi_dsi_out>;
> + };
> + };
> + };
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + #size-cells = <0>;
> + #address-cells = <1>;
> + reg = <0>;
> + mipi_dsi_in: endpoint@0 {
> + reg = <0>;
> + remote-endpoint = <&lcdif_mipi_dsi>;
> + };
> + };
> + port@1 {
> + reg = <1>;
> + mipi_dsi_out: endpoint {
> + remote-endpoint = <&panel_in>;
> + };
> + };
> + };
> + };
> --
> 2.23.0
Hi,
On Wed, Apr 08, 2020 at 07:32:58PM +0200, Sam Ravnborg wrote:
> Hi Guido.
>
> We discussed this binding briefly on IRC:
>
> 19:28 <pinchartl> port 0 is defined as
> 19:28 <pinchartl> + Input port node to receive pixel data from the
> 19:28 <pinchartl> + display controller. Exactly one endpoint must be
> 19:28 <pinchartl> + specified.
> 19:28 <pinchartl> then there's two endpoints,
There's only a single one allowed due to
https://lore.kernel.org/linux-arm-kernel/[email protected]/
Back when doing that i couldn't figure out a way how to specify this but
I've figured it out now.
Cheers,
-- Guido
>
>
> On Fri, Mar 20, 2020 at 07:49:09PM +0100, Guido G?nther wrote:
> > The Northwest Logic MIPI DSI IP core can be found in NXPs i.MX8 SoCs.
> >
> > Signed-off-by: Guido G?nther <[email protected]>
> > Tested-by: Robert Chiras <[email protected]>
> > Reviewed-by: Rob Herring <[email protected]>
> > Acked-by: Sam Ravnborg <[email protected]>
> > ---
> > .../bindings/display/bridge/nwl-dsi.yaml | 216 ++++++++++++++++++
> > 1 file changed, 216 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml b/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
> > new file mode 100644
> > index 000000000000..ec1e7e12719d
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
> > @@ -0,0 +1,216 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/display/bridge/nwl-dsi.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Northwest Logic MIPI-DSI controller on i.MX SoCs
> > +
> > +maintainers:
> > + - Guido G?nther <[email protected]>
> > + - Robert Chiras <[email protected]>
> > +
> > +description: |
> > + NWL MIPI-DSI host controller found on i.MX8 platforms. This is a dsi bridge for
> > + the SOCs NWL MIPI-DSI host controller.
> > +
> > +properties:
> > + compatible:
> > + const: fsl,imx8mq-nwl-dsi
> > +
> > + reg:
> > + maxItems: 1
> > +
> > + interrupts:
> > + maxItems: 1
> > +
> > + '#address-cells':
> > + const: 1
> > +
> > + '#size-cells':
> > + const: 0
> > +
> > + clocks:
> > + items:
> > + - description: DSI core clock
> > + - description: RX_ESC clock (used in escape mode)
> > + - description: TX_ESC clock (used in escape mode)
> > + - description: PHY_REF clock
> > + - description: LCDIF clock
> > +
> > + clock-names:
> > + items:
> > + - const: core
> > + - const: rx_esc
> > + - const: tx_esc
> > + - const: phy_ref
> > + - const: lcdif
> > +
> > + mux-controls:
> > + description:
> > + mux controller node to use for operating the input mux
> > +
> > + phys:
> > + maxItems: 1
> > + description:
> > + A phandle to the phy module representing the DPHY
> > +
> > + phy-names:
> > + items:
> > + - const: dphy
> > +
> > + power-domains:
> > + maxItems: 1
> > +
> > + resets:
> > + items:
> > + - description: dsi byte reset line
> > + - description: dsi dpi reset line
> > + - description: dsi esc reset line
> > + - description: dsi pclk reset line
> > +
> > + reset-names:
> > + items:
> > + - const: byte
> > + - const: dpi
> > + - const: esc
> > + - const: pclk
> > +
> > + ports:
> > + type: object
> > + description:
> > + A node containing DSI input & output port nodes with endpoint
> > + definitions as documented in
> > + Documentation/devicetree/bindings/graph.txt.
> > + properties:
> > + port@0:
> > + type: object
> > + description:
> > + Input port node to receive pixel data from the
> > + display controller. Exactly one endpoint must be
> > + specified.
> > + properties:
> > + '#address-cells':
> > + const: 1
> > +
> > + '#size-cells':
> > + const: 0
> > +
> > + endpoint@0:
> > + description: sub-node describing the input from LCDIF
> > + type: object
> > +
> > + endpoint@1:
> > + description: sub-node describing the input from DCSS
> > + type: object
> > +
> > + reg:
> > + const: 0
> > +
> > + required:
> > + - '#address-cells'
> > + - '#size-cells'
> > + - reg
> > + additionalProperties: false
> > +
> > + port@1:
> > + type: object
> > + description:
> > + DSI output port node to the panel or the next bridge
> > + in the chain
> > +
> > + '#address-cells':
> > + const: 1
> > +
> > + '#size-cells':
> > + const: 0
> > +
> > + required:
> > + - '#address-cells'
> > + - '#size-cells'
> > + - port@0
> > + - port@1
> > +
> > + additionalProperties: false
>
> For the casual reader the above confuses.
> Assuming the binding is correct, can we have the comment updated.
>
> Sam
>
> > +
> > +patternProperties:
> > + "^panel@[0-9]+$":
> > + type: object
> > +
> > +required:
> > + - '#address-cells'
> > + - '#size-cells'
> > + - clock-names
> > + - clocks
> > + - compatible
> > + - interrupts
> > + - mux-controls
> > + - phy-names
> > + - phys
> > + - ports
> > + - reg
> > + - reset-names
> > + - resets
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > + - |
> > +
> > + #include <dt-bindings/clock/imx8mq-clock.h>
> > + #include <dt-bindings/interrupt-controller/arm-gic.h>
> > + #include <dt-bindings/reset/imx8mq-reset.h>
> > +
> > + mipi_dsi: mipi_dsi@30a00000 {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + compatible = "fsl,imx8mq-nwl-dsi";
> > + reg = <0x30A00000 0x300>;
> > + clocks = <&clk IMX8MQ_CLK_DSI_CORE>,
> > + <&clk IMX8MQ_CLK_DSI_AHB>,
> > + <&clk IMX8MQ_CLK_DSI_IPG_DIV>,
> > + <&clk IMX8MQ_CLK_DSI_PHY_REF>,
> > + <&clk IMX8MQ_CLK_LCDIF_PIXEL>;
> > + clock-names = "core", "rx_esc", "tx_esc", "phy_ref", "lcdif";
> > + interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
> > + mux-controls = <&mux 0>;
> > + power-domains = <&pgc_mipi>;
> > + resets = <&src IMX8MQ_RESET_MIPI_DSI_RESET_BYTE_N>,
> > + <&src IMX8MQ_RESET_MIPI_DSI_DPI_RESET_N>,
> > + <&src IMX8MQ_RESET_MIPI_DSI_ESC_RESET_N>,
> > + <&src IMX8MQ_RESET_MIPI_DSI_PCLK_RESET_N>;
> > + reset-names = "byte", "dpi", "esc", "pclk";
> > + phys = <&dphy>;
> > + phy-names = "dphy";
> > +
> > + panel@0 {
> > + compatible = "rocktech,jh057n00900";
> > + reg = <0>;
> > + port@0 {
> > + panel_in: endpoint {
> > + remote-endpoint = <&mipi_dsi_out>;
> > + };
> > + };
> > + };
> > +
> > + ports {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + port@0 {
> > + #size-cells = <0>;
> > + #address-cells = <1>;
> > + reg = <0>;
> > + mipi_dsi_in: endpoint@0 {
> > + reg = <0>;
> > + remote-endpoint = <&lcdif_mipi_dsi>;
> > + };
> > + };
> > + port@1 {
> > + reg = <1>;
> > + mipi_dsi_out: endpoint {
> > + remote-endpoint = <&panel_in>;
> > + };
> > + };
> > + };
> > + };
> > --
> > 2.23.0
>