Re: [PATCH v3 4/9] dt-bindings: display: imx: Add bindings for i.MX94 DCIF
From: Frank Li <Frank.li@nxp.com>
Date: 2025-08-06 15:28:01
Also in:
dri-devel, imx, linux-devicetree, lkml
On Wed, Aug 06, 2025 at 06:05:11PM +0300, Laurentiu Palcu wrote:
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.
nit: wrap at 75 chars
quoted hunk ↗ jump to hunk
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com> --- .../bindings/display/imx/nxp,imx94-dcif.yaml | 82 +++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/imx/nxp,imx94-dcif.yamldiff --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..54419c589ef74 --- /dev/null +++ b/Documentation/devicetree/bindings/display/imx/nxp,imx94-dcif.yaml@@ -0,0 +1,82 @@ +# 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@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: CPU domain 0 (controlled by common registers group). + - description: CPU domain 1 (controlled by background layer registers group). + - description: CPU domain 2 (controlled by foreground layer registers group). + + interrupt-names: + items: + - const: common + - const: bg_layer + - const: fg_layer + + clocks: + maxItems: 3 + + clock-names: + items: + - const: apb + - const: axi + - const: pix + + power-domains: + maxItems: 1 + + port: + $ref: /schemas/graph.yaml#/properties/port + description: Display Pixel Interface(DPI) output port
I think need
properties:
endpoint:
$ref: video-interfaces.yaml#
unevaluatedProperties: false
Most likely need set
bus-width, hsync-active, vsync-active
Frank+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ display-controller@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>;
+
+ port {
+ dcif_out: endpoint {
+ remote-endpoint = <&ldb_in>;
+ };
+ };
+ };
+ };
--
2.49.0