[PATCH 3/5] media: dt-bindings: Add Apple ISP

[Sasha Finkelstein via B4 Relay <devnull+fnkl.kernel.gmail.com@kernel.org>]

From: Sasha Finkelstein <fnkl.kernel@gmail.com>

Add bindings for the ISP used with the webcam in Apple
ARM laptops.

Signed-off-by: Sasha Finkelstein <fnkl.kernel@gmail.com>
---
 .../devicetree/bindings/media/apple,isp.yaml       | 151 +++++++++++++++++++++
 MAINTAINERS                                        |   1 +
 2 files changed, 152 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/apple,isp.yaml b/Documentation/devicetree/bindings/media/apple,isp.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..67d536b61851af30fcc5bc452a761138876c6b18
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/apple,isp.yaml
@@ -0,0 +1,151 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/apple,isp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: An ISP block used in Apple products
+
+maintainers:
+  - Sasha Finkelstein <fnkl.kernel@gmail.com>
+
+description:
+  The ISP in charge of webcams on ARM Apple laptops
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - apple,t8103-isp
+          - apple,t8112-isp
+          - apple,t6000-isp
+          - apple,t6020-isp
+      - const: apple,isp
+
+  reg:
+    items:
+      - description: ASC coprocessor control
+      - description: Peripheral to host mailbox
+      - description: General-purpose ASC IO registers
+      - description: Host to peripheral mailbox
+
+  reg-names:
+    items:
+      - const: coproc
+      - const: mbox
+      - const: gpio
+      - const: mbox2
+
+  iommus:
+    description: All 3 must be kept in sync
+    minItems: 3
+    maxItems: 3
+
+  interrupts:
+    maxItems: 1
+
+  power-domains:
+    minItems: 1
+    maxItems: 20
+    description: All necessary power domains. Driver will enable them in order
+
+  memory-region:
+    maxItems: 1
+
+  apple,dart-vm-size:
+    description: Supported device memory range
+    $ref: /schemas/types.yaml#/definitions/uint64
+
+  apple,platform-id:
+    description: Platform id for firmware
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  apple,temporal-filter:
+    description: Whether temporal filter should be enabled in firmware
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  sensor-presets:
+    additionalProperties: false
+
+    patternProperties:
+      '^preset[0-9]+$':
+        type: object
+
+        additionalProperties: false
+
+        properties:
+          apple,config-index:
+            description: Firmware config index
+            $ref: /schemas/types.yaml#/definitions/uint32
+
+          apple,input-size:
+            $ref: /schemas/types.yaml#/definitions/uint32-array
+            minItems: 2
+            maxItems: 2
+            description: Raw sensor size
+
+          apple,output-size:
+            $ref: /schemas/types.yaml#/definitions/uint32-array
+            minItems: 2
+            maxItems: 2
+            description: Cropped and scaled image size
+
+          apple,crop:
+            $ref: /schemas/types.yaml#/definitions/uint32-array
+            minItems: 4
+            maxItems: 4
+            description: Area to crop
+
+        required:
+          - apple,config-index
+          - apple,input-size
+          - apple,output-size
+          - apple,crop
+
+required:
+  - compatible
+  - reg
+  - iommus
+  - interrupts
+  - power-domains
+  - memory-region
+  - apple,dart-vm-size
+  - apple,platform-id
+  - apple,temporal-filter
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/apple-aic.h>
+    isp: isp@2a000000 {
+        compatible = "apple,t8103-isp", "apple,isp";
+        reg = <0x2a000000 0x2000000>,
+              <0x2c104000 0x100>,
+              <0x2c104170 0x100>,
+              <0x2c1043f0 0x100>;
+        reg-names = "coproc", "mbox", "gpio", "mbox2";
+        iommus = <&isp_dart0 0>, <&isp_dart1 0>, <&isp_dart2 0>;
+        interrupt-parent = <&aic>;
+        interrupts = <AIC_IRQ 246 IRQ_TYPE_LEVEL_HIGH>;
+        power-domains = <&ps_isp_sys>, <&ps_isp_set0>,
+                        <&ps_isp_set1>, <&ps_isp_set2>, <&ps_isp_fe>,
+                        <&ps_isp_set4>, <&ps_isp_set5>, <&ps_isp_set6>,
+                        <&ps_isp_set7>, <&ps_isp_set8>, <&ps_isp_set9>,
+                        <&ps_isp_set10>, <&ps_isp_set11>,
+                        <&ps_isp_set12>;
+        memory-region = <&isp_heap>;
+        apple,dart-vm-size = <0x0 0xa0000000>;
+        apple,platform-id = <1>;
+        apple,temporal-filter = <0>;
+
+        sensor-presets {
+            preset0 {
+                apple,config-index = <0>;
+                apple,input-size = <1296 736>;
+                apple,output-size = <1280 720>;
+                apple,crop = <8 8 1280 720>;
+            };
+        };
+    };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index efee40ea589f70bc5e4a390072a4543234616743..dea7239ee0f5464b31efed5a2e0e5e602bcb6439 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2228,6 +2228,7 @@ F:	Documentation/devicetree/bindings/interrupt-controller/apple,*
 F:	Documentation/devicetree/bindings/iommu/apple,dart.yaml
 F:	Documentation/devicetree/bindings/iommu/apple,sart.yaml
 F:	Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml
+F:	Documentation/devicetree/bindings/media/apple,isp.yaml
 F:	Documentation/devicetree/bindings/net/bluetooth/brcm,bcm4377-bluetooth.yaml
 F:	Documentation/devicetree/bindings/nvme/apple,nvme-ans.yaml
 F:	Documentation/devicetree/bindings/nvmem/apple,efuses.yaml

-- 
2.48.1