[PATCH v4 08/14] dt-bindings: display: bridge: Add i.MX8qxp pixel link to DPI binding
Liu Ying
victor.liu at nxp.com
Thu Feb 18 03:41:49 UTC 2021
This patch adds bindings for i.MX8qxp pixel link to DPI(PXL2DPI).
Signed-off-by: Liu Ying <victor.liu at nxp.com>
---
v3->v4:
* Add 'fsl,sc-resource' property. (Rob)
v2->v3:
* Drop 'fsl,syscon' property. (Rob)
* Mention the CSR module controls PXL2DPI.
v1->v2:
* Use graph schema. (Laurent)
.../display/bridge/fsl,imx8qxp-pxl2dpi.yaml | 108 +++++++++++++++++++++
1 file changed, 108 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pxl2dpi.yaml
diff --git a/Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pxl2dpi.yaml b/Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pxl2dpi.yaml
new file mode 100644
index 00000000..e4e77fa
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pxl2dpi.yaml
@@ -0,0 +1,108 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/fsl,imx8qxp-pxl2dpi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Pixel Link to Display Pixel Interface
+
+maintainers:
+ - Liu Ying <victor.liu at nxp.com>
+
+description: |
+ The Freescale i.MX8qxp Pixel Link to Display Pixel Interface(PXL2DPI)
+ interfaces the pixel link 36-bit data output and the DSI controller’s
+ MIPI-DPI 24-bit data input, and inputs of LVDS Display Bridge(LDB) module
+ used in LVDS mode, to remap the pixel color codings between those modules.
+ This module is purely combinatorial.
+
+ The i.MX8qxp PXL2DPI is controlled by Control and Status Registers(CSR) module.
+ The CSR module, as a system controller, contains the PXL2DPI's configuration
+ register.
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-pxl2dpi
+
+ fsl,sc-resource:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: The SCU resource ID associated with this PXL2DPI instance.
+
+ power-domains:
+ maxItems: 1
+
+ fsl,companion-pxl2dpi:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: |
+ A phandle which points to companion PXL2DPI which is used by downstream
+ LVDS Display Bridge(LDB) in split mode.
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port at 0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: The PXL2DPI input port node from pixel link.
+
+ port at 1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: The PXL2DPI output port node to downstream bridge.
+
+ required:
+ - port at 0
+ - port at 1
+
+required:
+ - compatible
+ - fsl,sc-resource
+ - power-domains
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/firmware/imx/rsrc.h>
+ pxl2dpi {
+ compatible = "fsl,imx8qxp-pxl2dpi";
+ fsl,sc-resource = <IMX_SC_R_MIPI_0>;
+ power-domains = <&pd IMX_SC_R_MIPI_0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port at 0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ mipi_lvds_0_pxl2dpi_dc_pixel_link0: endpoint at 0 {
+ reg = <0>;
+ remote-endpoint = <&dc_pixel_link0_mipi_lvds_0_pxl2dpi>;
+ };
+
+ mipi_lvds_0_pxl2dpi_dc_pixel_link1: endpoint at 1 {
+ reg = <1>;
+ remote-endpoint = <&dc_pixel_link1_mipi_lvds_0_pxl2dpi>;
+ };
+ };
+
+ port at 1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch0: endpoint at 0 {
+ reg = <0>;
+ remote-endpoint = <&mipi_lvds_0_ldb_ch0_mipi_lvds_0_pxl2dpi>;
+ };
+
+ mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch1: endpoint at 1 {
+ reg = <1>;
+ remote-endpoint = <&mipi_lvds_0_ldb_ch1_mipi_lvds_0_pxl2dpi>;
+ };
+ };
+ };
+ };
--
2.7.4
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