Thread (12 messages) 12 messages, 5 authors, 2019-09-25
STALE2479d
Revisions (3)
  1. v1 current
  2. v2 [diff vs current]
  3. v3 [diff vs current]

[PATCH 4/5] dt-bindings: display: imx: add bindings for DCSS

From: Laurentiu Palcu <hidden>
Date: 2019-09-23 14:14:31
Also in: dri-devel, linux-devicetree, lkml
Subsystem: drm drivers, drm drivers and misc gpu patches, drm drivers for freescale imx 5/6, nxp i.mx 8mq dcss driver, open firmware and flattened device tree bindings, the rest · Maintainers: David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Philipp Zabel, Laurentiu Palcu, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds

Add bindings for iMX8MQ Display Controller Subsystem.

Signed-off-by: Laurentiu Palcu <redacted>
---
 .../bindings/display/imx/nxp,imx8mq-dcss.yaml      | 86 ++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml
diff --git a/Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml b/Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml
new file mode 100644
index 00000000..eb6d0d81
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml
@@ -0,0 +1,86 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2019 NXP
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/display/imx/nxp,imx8mq-dcss.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: iMX8MQ Display Controller Subsystem (DCSS)
+
+maintainers:
+  - Laurentiu Palcu <laurentiu.palcu@nxp.com>
+
+description:
+
+  The DCSS (display controller sub system) is used to source up to three
+  display buffers, compose them, and drive a display using HDMI 2.0a(with HDCP
+  2.2) or MIPI-DSI. The DCSS is intended to support up to 4kp60 displays. HDR10
+  image processing capabilities are included to provide a solution capable of
+  driving next generation high dynamic range displays.
+
+properties:
+  compatible:
+    const: nxp,imx8mq-dcss
+
+  reg:
+    maxItems: 2
+
+  interrupts:
+    maxItems: 3
+    items:
+      - description: Context loader completion and error interrupt
+      - description: DTG interrupt used to signal context loader trigger time
+      - description: DTG interrupt for Vblank
+
+  interrupt-names:
+    maxItems: 3
+    items:
+      - const: ctx_ld
+      - const: ctxld_kick
+      - const: vblank
+
+  clocks:
+    maxItems: 5
+    items:
+      - description: Display APB clock for all peripheral PIO access interfaces
+      - description: Display AXI clock needed by DPR, Scaler, RTRAM_CTRL
+      - description: RTRAM clock
+      - description: Pixel clock, can be driver either by HDMI phy clock or MIPI
+      - description: DTRC clock, needed by video decompressor
+
+  clock-names:
+    items:
+      - const: apb
+      - const: axi
+      - const: rtrm
+      - const: pix
+      - const: dtrc
+
+  port@0:
+    type: object
+    description: A port node pointing to a hdmi_in or mipi_in port node.
+
+examples:
+  - |
+    dcss: dcss@0x32e00000 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        compatible = "nxp,imx8mq-dcss";
+        reg = <0x32e00000 0x2D000>, <0x32e2f000 0x1000>;
+        interrupts = <6>, <8>, <9>;
+        interrupt-names = "ctx_ld", "ctxld_kick", "vblank";
+        interrupt-parent = <&irqsteer>;
+        clocks = <&clk 248>, <&clk 247>, <&clk 249>,
+                 <&clk 254>,<&clk 122>;
+        clock-names = "apb", "axi", "rtrm", "pix", "dtrc";
+        assigned-clocks = <&clk 107>, <&clk 109>, <&clk 266>;
+        assigned-clock-parents = <&clk 78>, <&clk 78>, <&clk 3>;
+        assigned-clock-rates = <800000000>,
+                               <400000000>;
+        port@0 {
+            dcss_out: endpoint {
+                remote-endpoint = <&hdmi_in>;
+            };
+        };
+    };
+
-- 
2.7.4


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