[PATCH v8 1/6] dt-bindings: display: imx: Add i.MX8qxp/qm DPU binding

[Liu Ying <victor.liu@nxp.com>]

This patch adds bindings for i.MX8qxp/qm Display Processing Unit.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
---
v7->v8:
* No change.

v6->v7:
* Add Rob's R-b tag back.

v5->v6:
* Use graph schema. So, drop Rob's R-b tag as review is needed.

v4->v5:
* No change.

v3->v4:
* Improve compatible property by using enum instead of oneOf+const. (Rob)
* Add Rob's R-b tag.

v2->v3:
* No change.

v1->v2:
* Fix yamllint warnings.
* Require bypass0 and bypass1 clocks for both i.MX8qxp and i.MX8qm, as the
  display controller subsystem spec does say that they exist.
* Use new dt binding way to add clocks in the example.
* Trivial tweaks for the example.

 .../bindings/display/imx/fsl,imx8qxp-dpu.yaml      | 387 +++++++++++++++++++++
 1 file changed, 387 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dpu.yaml

diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dpu.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dpu.yaml
new file mode 100644
index 00000000..9da9560
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dpu.yaml
@@ -0,0 +1,387 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qm/qxp Display Processing Unit
+
+maintainers:
+  - Liu Ying <victor.liu@nxp.com>
+
+description: |
+  The Freescale i.MX8qm/qxp Display Processing Unit(DPU) is comprised of two
+  main components that include a blit engine for 2D graphics accelerations
+  and a display controller for display output processing, as well as a command
+  sequencer.
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx8qxp-dpu
+      - fsl,imx8qm-dpu
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    items:
+      - description: |
+          store9 shadow load interrupt(blit engine)
+      - description: |
+          store9 frame complete interrupt(blit engine)
+      - description: |
+          store9 sequence complete interrupt(blit engine)
+      - description: |
+          extdst0 shadow load interrupt
+          (display controller, content stream 0)
+      - description: |
+          extdst0 frame complete interrupt
+          (display controller, content stream 0)
+      - description: |
+          extdst0 sequence complete interrupt
+          (display controller, content stream 0)
+      - description: |
+          extdst4 shadow load interrupt
+          (display controller, safety stream 0)
+      - description: |
+          extdst4 frame complete interrupt
+          (display controller, safety stream 0)
+      - description: |
+          extdst4 sequence complete interrupt
+          (display controller, safety stream 0)
+      - description: |
+          extdst1 shadow load interrupt
+          (display controller, content stream 1)
+      - description: |
+          extdst1 frame complete interrupt
+          (display controller, content stream 1)
+      - description: |
+          extdst1 sequence complete interrupt
+          (display controller, content stream 1)
+      - description: |
+          extdst5 shadow load interrupt
+          (display controller, safety stream 1)
+      - description: |
+          extdst5 frame complete interrupt
+          (display controller, safety stream 1)
+      - description: |
+          extdst5 sequence complete interrupt
+          (display controller, safety stream 1)
+      - description: |
+          disengcfg0 shadow load interrupt
+          (display controller, display stream 0)
+      - description: |
+          disengcfg0 frame complete interrupt
+          (display controller, display stream 0)
+      - description: |
+          disengcfg0 sequence complete interrupt
+          (display controller, display stream 0)
+      - description: |
+          framegen0 programmable interrupt0
+          (display controller, display stream 0)
+      - description: |
+          framegen0 programmable interrupt1
+          (display controller, display stream 0)
+      - description: |
+          framegen0 programmable interrupt2
+          (display controller, display stream 0)
+      - description: |
+          framegen0 programmable interrupt3
+          (display controller, display stream 0)
+      - description: |
+          signature0 shadow load interrupt
+          (display controller, display stream 0)
+      - description: |
+          signature0 measurement valid interrupt
+          (display controller, display stream 0)
+      - description: |
+          signature0 error condition interrupt
+          (display controller, display stream 0)
+      - description: |
+          disengcfg1 shadow load interrupt
+          (display controller, display stream 1)
+      - description: |
+          disengcfg1 frame complete interrupt
+          (display controller, display stream 1)
+      - description: |
+          disengcfg1 sequence complete interrupt
+          (display controller, display stream 1)
+      - description: |
+          framegen1 programmable interrupt0
+          (display controller, display stream 1)
+      - description: |
+          framegen1 programmable interrupt1
+          (display controller, display stream 1)
+      - description: |
+          framegen1 programmable interrupt2
+          (display controller, display stream 1)
+      - description: |
+          framegen1 programmable interrupt3
+          (display controller, display stream 1)
+      - description: |
+          signature1 shadow load interrupt
+          (display controller, display stream 1)
+      - description: |
+          signature1 measurement valid interrupt
+          (display controller, display stream 1)
+      - description: |
+          signature1 error condition interrupt
+          (display controller, display stream 1)
+      - description: |
+          command sequencer error condition interrupt(command sequencer)
+      - description: |
+          common control software interrupt0(common control)
+      - description: |
+          common control software interrupt1(common control)
+      - description: |
+          common control software interrupt2(common control)
+      - description: |
+          common control software interrupt3(common control)
+      - description: |
+          framegen0 sychronization status activated interrupt
+          (display controller, safety stream 0)
+      - description: |
+          framegen0 sychronization status deactivated interrupt
+          (display controller, safety stream 0)
+      - description: |
+          framegen0 sychronization status activated interrupt
+          (display controller, content stream 0)
+      - description: |
+          framegen0 sychronization status deactivated interrupt
+          (display controller, content stream 0)
+      - description: |
+          framegen1 sychronization status activated interrupt
+          (display controller, safety stream 1)
+      - description: |
+          framegen1 sychronization status deactivated interrupt
+          (display controller, safety stream 1)
+      - description: |
+          framegen1 sychronization status activated interrupt
+          (display controller, content stream 1)
+      - description: |
+          framegen1 sychronization status deactivated interrupt
+          (display controller, content stream 1)
+
+  interrupt-names:
+    items:
+      - const: store9_shdload
+      - const: store9_framecomplete
+      - const: store9_seqcomplete
+      - const: extdst0_shdload
+      - const: extdst0_framecomplete
+      - const: extdst0_seqcomplete
+      - const: extdst4_shdload
+      - const: extdst4_framecomplete
+      - const: extdst4_seqcomplete
+      - const: extdst1_shdload
+      - const: extdst1_framecomplete
+      - const: extdst1_seqcomplete
+      - const: extdst5_shdload
+      - const: extdst5_framecomplete
+      - const: extdst5_seqcomplete
+      - const: disengcfg_shdload0
+      - const: disengcfg_framecomplete0
+      - const: disengcfg_seqcomplete0
+      - const: framegen0_int0
+      - const: framegen0_int1
+      - const: framegen0_int2
+      - const: framegen0_int3
+      - const: sig0_shdload
+      - const: sig0_valid
+      - const: sig0_error
+      - const: disengcfg_shdload1
+      - const: disengcfg_framecomplete1
+      - const: disengcfg_seqcomplete1
+      - const: framegen1_int0
+      - const: framegen1_int1
+      - const: framegen1_int2
+      - const: framegen1_int3
+      - const: sig1_shdload
+      - const: sig1_valid
+      - const: sig1_error
+      - const: cmdseq_error
+      - const: comctrl_sw0
+      - const: comctrl_sw1
+      - const: comctrl_sw2
+      - const: comctrl_sw3
+      - const: framegen0_primsync_on
+      - const: framegen0_primsync_off
+      - const: framegen0_secsync_on
+      - const: framegen0_secsync_off
+      - const: framegen1_primsync_on
+      - const: framegen1_primsync_off
+      - const: framegen1_secsync_on
+      - const: framegen1_secsync_off
+
+  clocks:
+    maxItems: 8
+
+  clock-names:
+    items:
+      - const: axi
+      - const: cfg
+      - const: pll0
+      - const: pll1
+      - const: bypass0
+      - const: bypass1
+      - const: disp0
+      - const: disp1
+
+  power-domains:
+    items:
+      - description: DC power-domain
+      - description: PLL0 power-domain
+      - description: PLL1 power-domain
+
+  power-domain-names:
+    items:
+      - const: dc
+      - const: pll0
+      - const: pll1
+
+  fsl,dpr-channels:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description: |
+      List of phandle which points to DPR channels associated with
+      this DPU instance.
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: The DPU output port node from display stream0.
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: The DPU output port node from display stream1.
+
+    required:
+      - port@0
+      - port@1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - interrupt-names
+  - clocks
+  - clock-names
+  - power-domains
+  - power-domain-names
+  - fsl,dpr-channels
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/imx8-lpcg.h>
+    #include <dt-bindings/firmware/imx/rsrc.h>
+    dpu@56180000 {
+        compatible = "fsl,imx8qxp-dpu";
+        reg = <0x56180000 0x40000>;
+        interrupt-parent = <&dc0_irqsteer>;
+        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>,   <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",
+                          "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";
+        clocks = <&dc0_dpu_lpcg IMX_LPCG_CLK_5>,
+                 <&dc0_dpu_lpcg IMX_LPCG_CLK_4>,
+                 <&clk IMX_SC_R_DC_0_PLL_0 IMX_SC_PM_CLK_PLL>,
+                 <&clk IMX_SC_R_DC_0_PLL_1 IMX_SC_PM_CLK_PLL>,
+                 <&clk IMX_SC_R_DC_0_VIDEO0 IMX_SC_PM_CLK_BYPASS>,
+                 <&clk IMX_SC_R_DC_0_VIDEO1 IMX_SC_PM_CLK_BYPASS>,
+                 <&dc0_disp_lpcg IMX_LPCG_CLK_0>,
+                 <&dc0_disp_lpcg IMX_LPCG_CLK_1>;
+        clock-names = "axi", "cfg",
+                      "pll0", "pll1", "bypass0", "bypass1",
+                      "disp0", "disp1";
+        power-domains = <&pd IMX_SC_R_DC_0>,
+                        <&pd IMX_SC_R_DC_0_PLL_0>,
+                        <&pd IMX_SC_R_DC_0_PLL_1>;
+        power-domain-names = "dc", "pll0", "pll1";
+        fsl,dpr-channels = <&dc0_dpr1_channel1>,
+                           <&dc0_dpr1_channel2>,
+                           <&dc0_dpr1_channel3>,
+                           <&dc0_dpr2_channel1>,
+                           <&dc0_dpr2_channel2>,
+                           <&dc0_dpr2_channel3>;
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+                dpu0_disp0_pixel_combiner0_ch0: endpoint {
+                    remote-endpoint = <&pixel_combiner0_ch0_dpu0_disp0>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+                dpu0_disp1_pixel_combiner0_ch1: endpoint {
+                    remote-endpoint = <&pixel_combiner0_ch1_dpu0_disp1>;
+                };
+            };
+        };
+    };
-- 
2.7.4