Merge tag 'drm/tegra/for-5.20-rc1' of https://gitlab.freedesktop.org/drm/tegra into drm-next

drm/tegra: Changes for v5.20-rc1

The bulk of these changes adds support for context isolation for the
various supported host1x engines, as well as support for the hardware
found on the new Tegra234 SoC generation.

There's also a couple of fixes and cleanups. To round things off, the
device tree bindings are converted to the new json-schema format that
allows DTBs to be validated.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thierry Reding <thierry.reding@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220708181136.673789-1-thierry.reding@gmail.com

1 files changed, 183 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dc.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dc.yaml
new file mode 100644
index 000000000000..6eedee503aa0
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dc.yaml
@@ -0,0 +1,183 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra20-dc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra Display Controller
+
+maintainers:
+  - Thierry Reding <thierry.reding@gmail.com>
+  - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+  $nodename:
+    pattern: "^dc@[0-9a-f]+$"
+
+  compatible:
+    oneOf:
+      - enum:
+          - nvidia,tegra20-dc
+          - nvidia,tegra30-dc
+          - nvidia,tegra114-dc
+          - nvidia,tegra124-dc
+          - nvidia,tegra210-dc
+
+      - items:
+          - const: nvidia,tegra124-dc
+          - const: nvidia,tegra132-dc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    minItems: 1
+    items:
+      - description: display controller pixel clock
+      - description: parent clock # optional
+
+  clock-names:
+    minItems: 1
+    items:
+      - const: dc
+      - const: parent # optional
+
+  resets:
+    items:
+      - description: module reset
+
+  reset-names:
+    items:
+      - const: dc
+
+  interconnect-names: true
+  interconnects: true
+
+  iommus:
+    maxItems: 1
+
+  operating-points-v2:
+    $ref: "/schemas/types.yaml#/definitions/phandle"
+
+  power-domains:
+    items:
+      - description: phandle to the core power domain
+
+  memory-region: true
+
+  nvidia,head:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: The number of the display controller head. This is used to setup the various
+      types of output to receive video data from the given head.
+
+  nvidia,outputs:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description: A list of phandles of outputs that this display controller can drive.
+
+  rgb:
+    type: object
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - nvidia,tegra20-dc
+              - nvidia,tegra30-dc
+              - nvidia,tegra114-dc
+    then:
+      properties:
+        interconnects:
+          items:
+            - description: window A memory client
+            - description: window B memory client
+            - description: window B memory client (vertical filter)
+            - description: window C memory client
+            - description: cursor memory client
+
+        interconnect-names:
+          items:
+            - const: wina
+            - const: winb
+            - const: winb-vfilter
+            - const: winc
+            - const: cursor
+
+        rgb:
+          description: Each display controller node has a child node, named "rgb", that represents
+            the RGB output associated with the controller.
+          type: object
+          properties:
+            nvidia,ddc-i2c-bus:
+              $ref: /schemas/types.yaml#/definitions/phandle
+              description: phandle of an I2C controller used for DDC EDID probing
+
+            nvidia,hpd-gpio:
+              description: specifies a GPIO used for hotplug detection
+              maxItems: 1
+
+            nvidia,edid:
+              $ref: /schemas/types.yaml#/definitions/uint8-array
+              description: supplies a binary EDID blob
+
+            nvidia,panel:
+              $ref: /schemas/types.yaml#/definitions/phandle
+              description: phandle of a display panel
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - nvidia,tegra124-dc
+    then:
+      properties:
+        interconnects:
+          minItems: 4
+          items:
+            - description: window A memory client
+            - description: window B memory client
+            - description: window C memory client
+            - description: cursor memory client
+            - description: window D memory client
+            - description: window T memory client
+
+        interconnect-names:
+          minItems: 4
+          items:
+            - const: wina
+            - const: winb
+            - const: winc
+            - const: cursor
+            - const: wind
+            - const: wint
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - resets
+  - reset-names
+
+examples:
+  - |
+    #include <dt-bindings/clock/tegra20-car.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    dc@54200000 {
+        compatible = "nvidia,tegra20-dc";
+        reg = <0x54200000 0x00040000>;
+        interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&tegra_car TEGRA20_CLK_DISP1>;
+        clock-names = "dc";
+        resets = <&tegra_car 27>;
+        reset-names = "dc";
+    };