Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 170 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/display/arm,pl11x.yaml b/Documentation/devicetree/bindings/display/arm,pl11x.yaml
new file mode 100644
index 000000000..6cc9045e5
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/arm,pl11x.yaml
@@ -0,0 +1,170 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/arm,pl11x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm PrimeCell Color LCD Controller PL110/PL111
+
+maintainers:
+  - Liviu Dudau <Liviu.Dudau@arm.com>
+  - Andre Przywara <andre.przywara@arm.com>
+
+description:
+  The Arm Primcell PL010/PL111 is an LCD controller IP, than scans out
+  a framebuffer region in system memory, and creates timed signals for
+  a variety of LCD panels.
+
+# We need a select here so we don't match all nodes with 'arm,primecell'
+select:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - arm,pl110
+          - arm,pl111
+  required:
+    - compatible
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - arm,pl110
+          - arm,pl111
+      - const: arm,primecell
+
+  reg:
+    maxItems: 1
+
+  interrupt-names:
+    oneOf:
+      - const: combined
+        description:
+          The IP provides four individual interrupt lines, but also one
+          combined line. If the integration only connects this line to the
+          interrupt controller, this single interrupt is noted here.
+      - items:
+          - const: mbe        # CLCDMBEINTR
+          - const: vcomp      # CLCDVCOMPINTR
+          - const: lnbu       # CLCDLNBUINTR
+          - const: fuf        # CLCDFUFINTR
+
+  interrupts:
+    minItems: 1
+    maxItems: 4
+
+  clock-names:
+    items:
+      - const: clcdclk
+      - const: apb_pclk
+
+  clocks:
+    items:
+      - description: The CLCDCLK reference clock for the controller.
+      - description: The HCLK AHB slave clock for the register access.
+
+  memory-region:
+    maxItems: 1
+    description:
+      Phandle to a node describing memory to be used for the framebuffer.
+      If not present, the framebuffer may be located anywhere in memory.
+
+  max-memory-bandwidth:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Maximum bandwidth in bytes per second that the cell's memory interface
+      can handle.
+      If not present, the memory interface is fast enough to handle all
+      possible video modes.
+
+  port:
+    $ref: /schemas/graph.yaml#/$defs/port-base
+    additionalProperties: false
+
+    description:
+      Output endpoint of the controller, connecting the LCD panel signals.
+
+    properties:
+      endpoint:
+        $ref: /schemas/graph.yaml#/$defs/endpoint-base
+        unevaluatedProperties: false
+
+        properties:
+          arm,pl11x,tft-r0g0b0-pads:
+            $ref: /schemas/types.yaml#/definitions/uint32-array
+            items:
+              - description: index of CLD pad used for first red bit (R0)
+              - description: index of CLD pad used for first green bit (G0)
+              - description: index of CLD pad used for first blue bit (G0)
+            deprecated: true
+            description: |
+              DEPRECATED. An array of three 32-bit values, defining the way
+              CLD[23:0] pads are wired up.
+              The first value contains the index of the "CLD" external pin (pad)
+              used as R0 (first bit of the red component), the second value for
+              green, the third value for blue.
+              See also "LCD panel signal multiplexing details" paragraphs in the
+              PL110/PL111 Technical Reference Manuals.
+              This implicitly defines available color modes, for example:
+              - PL111 TFT 4:4:4 panel:
+                  arm,pl11x,tft-r0g0b0-pads = <4 15 20>;
+              - PL110 TFT (1:)5:5:5 panel:
+                  arm,pl11x,tft-r0g0b0-pads = <1 7 13>;
+              - PL111 TFT (1:)5:5:5 panel:
+                  arm,pl11x,tft-r0g0b0-pads = <3 11 19>;
+              - PL111 TFT 5:6:5 panel:
+                  arm,pl11x,tft-r0g0b0-pads = <3 10 19>;
+              - PL110 and PL111 TFT 8:8:8 panel:
+                  arm,pl11x,tft-r0g0b0-pads = <0 8 16>;
+              - PL110 and PL111 TFT 8:8:8 panel, R & B components swapped:
+                  arm,pl11x,tft-r0g0b0-pads = <16 8 0>;
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - clock-names
+  - clocks
+  - port
+
+allOf:
+  - if:
+      properties:
+        interrupts:
+          minItems: 2
+      required:
+        - interrupts
+    then:
+      required:
+        - interrupt-names
+
+examples:
+  - |
+    clcd@10020000 {
+        compatible = "arm,pl111", "arm,primecell";
+        reg = <0x10020000 0x1000>;
+        interrupt-names = "combined";
+        interrupts = <44>;
+        clocks = <&oscclk1>, <&oscclk2>;
+        clock-names = "clcdclk", "apb_pclk";
+        max-memory-bandwidth = <94371840>; /* Bps, 1024x768@60 16bpp */
+
+        port {
+            clcd_pads: endpoint {
+                remote-endpoint = <&clcd_panel>;
+            };
+        };
+    };
+
+    panel {
+        compatible = "arm,rtsm-display";
+
+        port {
+            clcd_panel: endpoint {
+                remote-endpoint = <&clcd_pads>;
+            };
+        };
+    };
+...