[PATCH 5/8] dt-bindings: display: imx: Add bindings for i.MX94 DCIF
Laurentiu Palcu
laurentiu.palcu at oss.nxp.com
Wed Jul 9 12:23:24 UTC 2025
DCIF is the i.MX94 Display Controller Interface which is used to
drive a TFT LCD panel or connects to a display interface depending
on the chip configuration.
Signed-off-by: Laurentiu Palcu <laurentiu.palcu at oss.nxp.com>
---
.../bindings/display/imx/nxp,imx94-dcif.yaml | 101 ++++++++++++++++++
1 file changed, 101 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/imx/nxp,imx94-dcif.yaml
diff --git a/Documentation/devicetree/bindings/display/imx/nxp,imx94-dcif.yaml b/Documentation/devicetree/bindings/display/imx/nxp,imx94-dcif.yaml
new file mode 100644
index 0000000000000..e4cab43c77ebc
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/nxp,imx94-dcif.yaml
@@ -0,0 +1,101 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2025 NXP
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/nxp,imx94-dcif.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX94 Display Control Interface (DCIF)
+
+maintainers:
+ - Laurentiu Palcu <laurentiu.palcu at oss.nxp.com>
+
+description:
+ The Display Control Interface(DCIF) is a system master that fetches graphics
+ stored in memory and displays them on a TFT LCD panel or connects to a
+ display interface depending on the chip configuration.
+
+properties:
+ compatible:
+ const: nxp,imx94-dcif
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ items:
+ - description:
+ Interrupt output for CPU domain 0 (controlled by common registers group).
+ - description:
+ Interrupt output for CPU domain 1 (controlled by background layer registers group).
+ - description:
+ Interrupt output for CPU domain 2 (controlled by foreground layer registers group).
+
+ interrupt-names:
+ items:
+ - const: common
+ - const: bg_layer
+ - const: fg_layer
+
+ clocks:
+ items:
+ - description: APB bus clock
+ - description: AXI bus clock
+ - description: Pixel clock
+
+ clock-names:
+ items:
+ - const: apb
+ - const: axi
+ - const: pix
+
+ assigned-clocks:
+ description: Reference to DISPLAYMIX CSR clock mux.
+ maxItems: 1
+
+ assigned-clock-parents:
+ description: Parent of the clock mux.
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ nxp,blk-ctrl:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: A phandle which points to NXP displaymix blk-ctrl.
+
+ port:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Display Pixel Interface(DPI) output port
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ display-controller at 4b120000 {
+ compatible = "nxp,imx94-dcif";
+ reg = <0x0 0x4b120000 0x0 0x300000>;
+ interrupts = <GIC_SPI 377 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 378 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 379 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "common", "bg_layer", "fg_layer";
+ clocks = <&scmi_clk 69>, <&scmi_clk 70>, <&dispmix_csr 0>;
+ clock-names = "apb", "axi", "pix";
+ assigned-clocks = <&dispmix_csr 0>;
+ assigned-clock-parents = <&ldb_pll_pixel>;
+ power-domains = <&scmi_devpd 11>;
+ nxp,blk-ctrl = <&dispmix_csr>;
+
+ port {
+ dcif_out: endpoint {
+ remote-endpoint = <&ldb_in>;
+ };
+ };
+ };
+ };
--
2.46.1
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