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[PATCH 05/10] dt-bindings: display: imx: Add i.MX8qxp Display Controller

From: Liu Ying <victor.liu@nxp.com>
Date: 2024-07-05 09:01:21
Also in: dri-devel, imx, linux-devicetree, lkml
Subsystem: drm drivers, drm drivers and misc gpu patches, drm drivers for freescale imx 5/6, drm drivers for freescale imx8 display controller, open firmware and flattened device tree bindings, the rest · Maintainers: David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Philipp Zabel, Liu Ying, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds

i.MX8qxp Display Controller(DC) is comprised of three main components that
include a blit engine for 2D graphics accelerations, display controller for
display output processing, as well as a command sequencer.

Signed-off-by: Liu Ying <victor.liu@nxp.com>
---
 .../bindings/display/imx/fsl,imx8qxp-dc.yaml  | 243 ++++++++++++++++++
 1 file changed, 243 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc.yaml
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc.yaml
new file mode 100644
index 000000000000..a2ad280d2839
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc.yaml
@@ -0,0 +1,243 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller
+
+description: |
+  The Freescale i.MX8qxp Display Controller(DC) is comprised of three main
+  components that include a blit engine for 2D graphics accelerations, display
+  controller for display output processing, as well as a command sequencer.
+
+                                  Display buffers              Source buffers
+                                 (AXI read master)            (AXI read master)
+                                  | .......... |                  | | |
+      +---------------------------+------------+------------------+-+-+------+
+      | Display Controller (DC)   | .......... |                  | | |      |
+      |                           |            |                  | | |      |
+      |   @@@@@@@@@@@  +----------+------------+------------+     | | |      |
+  A   |  | Command   | |          V            V            |     | | |      |
+  X <-+->| Sequencer | |    @@@@@@@@@@@@@@@@@@@@@@@@@@@@    |     V V V      |
+  I   |  | (AXI CLK) | |   |                            |   |   @@@@@@@@@@   |
+      |   @@@@@@@@@@@  |   |       Pixel Engine         |   |  |          |  |
+      |       |        |   |         (AXI CLK)          |   |  |          |  |
+      |       V        |    @@@@@@@@@@@@@@@@@@@@@@@@@@@@    |  |          |  |
+  A   |   ***********  |       |   |            |   |       |  |   Blit   |  |
+  H <-+->| Configure | |       V   V            V   V       |  |  Engine  |  |
+  B   |  | (CFG CLK) | |    00000000000      11111111111    |  | (AXI CLK)|  |
+      |   ***********  |   |  Display  |    |  Display  |   |  |          |  |
+      |                |   |  Engine   |    |  Engine   |   |  |          |  |
+      |                |   | (Disp CLK)|    | (Disp CLK)|   |  |          |  |
+      |   @@@@@@@@@@@  |    00000000000      11111111111    |   @@@@@@@@@@   |
+  I   |  |  Common   | |         |                |         |       |        |
+  R <-+--|  Control  | |         |    Display     |         |       |        |
+  Q   |  | (AXI CLK) | |         |   Controller   |         |       |        |
+      |   @@@@@@@@@@@  +------------------------------------+       |        |
+      |                          |                |       ^         |        |
+      +--------------------------+----------------+-------+---------+--------+
+              ^                  |                |       |         |
+              |                  V                V       |         V
+       Clocks & Resets        Display          Display  Panic   Destination
+                              Output0          Output1 Control    buffer
+                                                              (AXI write master)
+
+maintainers:
+  - Liu Ying <victor.liu@nxp.com>
+
+properties:
+  compatible:
+    const: fsl,imx8qxp-dc
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  resets:
+    maxItems: 2
+
+  reset-names:
+    items:
+      - const: axi
+      - const: cfg
+
+  power-domains:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+  ranges: true
+
+patternProperties:
+  "^axi-performance-counter@[0-9a-f]+$":
+    type: object
+    additionalProperties: true
+
+    properties:
+      compatible:
+        const: fsl,imx8qxp-dc-axi-performance-counter
+
+  "^command-sequencer@[0-9a-f]+$":
+    type: object
+    additionalProperties: true
+
+    properties:
+      compatible:
+        const: fsl,imx8qxp-dc-command-sequencer
+
+  "^display-engine@[0-9a-f]+$":
+    type: object
+    additionalProperties: true
+
+    properties:
+      compatible:
+        const: fsl,imx8qxp-dc-display-engine
+
+  "^interrupt-controller@[0-9a-f]+$":
+    type: object
+    additionalProperties: true
+
+    properties:
+      compatible:
+        const: fsl,imx8qxp-dc-intc
+
+  "^pixel-engine@[0-9a-f]+$":
+    type: object
+    additionalProperties: true
+
+    properties:
+      compatible:
+        const: fsl,imx8qxp-dc-pixel-engine
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - power-domains
+  - "#address-cells"
+  - "#size-cells"
+  - ranges
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/imx8-lpcg.h>
+    #include <dt-bindings/firmware/imx/rsrc.h>
+
+    display-controller@56180000 {
+        compatible = "fsl,imx8qxp-dc";
+        reg = <0x56180000 0x40000>;
+        clocks = <&dc0_lpcg IMX_LPCG_CLK_4>;
+        power-domains = <&pd IMX_SC_R_DC_0>;
+        #address-cells = <1>;
+        #size-cells = <1>;
+        ranges;
+
+        interrupt-controller@56180040 {
+            compatible = "fsl,imx8qxp-dc-intc";
+            reg = <0x56180040 0x60>;
+            clocks = <&dc0_lpcg IMX_LPCG_CLK_5>;
+            interrupt-controller;
+            interrupt-parent = <&dc0_irqsteer>;
+            #interrupt-cells = <1>;
+            interrupts = <448>, <449>, <450>,  <64>,
+                          <65>,  <66>,  <67>,  <68>,
+                          <69>,  <70>, <193>, <194>,
+                         <195>, <196>, <197>,  <72>,
+                          <73>,  <74>,  <75>,  <76>,
+                          <77>,  <78>,  <79>,  <80>,
+                          <81>, <199>, <200>, <201>,
+                         <202>, <203>, <204>, <205>,
+                         <206>, <207>, <208>,   <5>,
+                           <0>,   <1>,   <2>,   <3>,
+                           <4>,  <82>,  <83>,  <84>,
+                          <85>, <209>, <210>, <211>,
+                         <212>;
+            interrupt-names = "store9_shdload",
+                              "store9_framecomplete",
+                              "store9_seqcomplete",
+                              "extdst0_shdload",
+                              "extdst0_framecomplete",
+                              "extdst0_seqcomplete",
+                              "extdst4_shdload",
+                              "extdst4_framecomplete",
+                              "extdst4_seqcomplete",
+                              "extdst1_shdload",
+                              "extdst1_framecomplete",
+                              "extdst1_seqcomplete",
+                              "extdst5_shdload",
+                              "extdst5_framecomplete",
+                              "extdst5_seqcomplete",
+                              "disengcfg_shdload0",
+                              "disengcfg_framecomplete0",
+                              "disengcfg_seqcomplete0",
+                              "framegen0_int0",
+                              "framegen0_int1",
+                              "framegen0_int2",
+                              "framegen0_int3",
+                              "sig0_shdload",
+                              "sig0_valid",
+                              "sig0_error",
+                              "disengcfg_shdload1",
+                              "disengcfg_framecomplete1",
+                              "disengcfg_seqcomplete1",
+                              "framegen1_int0",
+                              "framegen1_int1",
+                              "framegen1_int2",
+                              "framegen1_int3",
+                              "sig1_shdload",
+                              "sig1_valid",
+                              "sig1_error",
+                              "reserved",
+                              "cmdseq_error",
+                              "comctrl_sw0",
+                              "comctrl_sw1",
+                              "comctrl_sw2",
+                              "comctrl_sw3",
+                              "framegen0_primsync_on",
+                              "framegen0_primsync_off",
+                              "framegen0_secsync_on",
+                              "framegen0_secsync_off",
+                              "framegen1_primsync_on",
+                              "framegen1_primsync_off",
+                              "framegen1_secsync_on",
+                              "framegen1_secsync_off";
+        };
+
+        pixel-engine@56180800 {
+            compatible = "fsl,imx8qxp-dc-pixel-engine";
+            reg = <0x56180800 0xac00>;
+            clocks = <&dc0_lpcg IMX_LPCG_CLK_5>;
+            #address-cells = <1>;
+            #size-cells = <1>;
+            ranges;
+        };
+
+        display-engine@5618b400 {
+            compatible = "fsl,imx8qxp-dc-display-engine";
+            reg = <0x5618b400 0x14>, <0x5618b800 0x1c00>;
+            reg-names = "top", "cfg";
+            interrupt-parent = <&dc0_intc>;
+            interrupts = <15>, <16>, <17>;
+            interrupt-names = "shdload", "framecomplete", "seqcomplete";
+            power-domains = <&pd IMX_SC_R_DC_0_PLL_0>;
+            #address-cells = <1>;
+            #size-cells = <1>;
+            ranges;
+            fsl,dc-de-id = <0>;
+
+            port {
+                dc0_disp0_dc0_pixel_combiner_ch0: endpoint {
+                    remote-endpoint = <&dc0_pixel_combiner_ch0_dc0_disp0>;
+                };
+            };
+        };
+    };
-- 
2.34.1

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