media: dt-bindings: Add amlogic,c3-isp.yaml

c3-isp is used to process raw image.

Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Signed-off-by: Keke Li <[e-mail]>
Signed-off-by: Jacopo Mondi <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>

Documentation/devicetree/bindings/media/amlogic,c3-isp.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/amlogic,c3-isp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic C3 Image Signal Processing Unit
+
+maintainers:
+  - Keke Li <[e-mail]>
+
+description:
+  Amlogic ISP is the RAW image processing module
+  and supports three channels image output.
+
+properties:
+  compatible:
+    enum:
+      - amlogic,c3-isp
+
+  reg:
+    maxItems: 1
+
+  reg-names:
+    items:
+      - const: isp
+
+  power-domains:
+    maxItems: 1
+
+  clocks:
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: vapb
+      - const: isp0
+
+  interrupts:
+    maxItems: 1
+
+  port:
+    $ref: /schemas/graph.yaml#/properties/port
+    description: input port node.
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - power-domains
+  - clocks
+  - clock-names
+  - interrupts
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/amlogic,c3-peripherals-clkc.h>
+    #include <dt-bindings/power/amlogic,c3-pwrc.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        isp: isp@ff000000 {
+            compatible = "amlogic,c3-isp";
+            reg = <0x0 0xff000000 0x0 0xf000>;
+            reg-names = "isp";
+            power-domains = <&pwrc PWRC_C3_ISP_TOP_ID>;
+            clocks = <&clkc_periphs CLKID_VAPB>,
+                     <&clkc_periphs CLKID_ISP0>;
+            clock-names = "vapb", "isp0";
+            assigned-clocks = <&clkc_periphs CLKID_VAPB>,
+                              <&clkc_periphs CLKID_ISP0>;
+            assigned-clock-rates = <0>, <400000000>;
+            interrupts = <GIC_SPI 145 IRQ_TYPE_EDGE_RISING>;
+
+            port {
+                c3_isp_in: endpoint {
+                    remote-endpoint = <&c3_adap_out>;
+                };
+            };
+        };
+    };
+...

MAINTAINERS

···
 F:	drivers/perf/amlogic/
 F:	include/soc/amlogic/
 
+AMLOGIC ISP DRIVER
+M:	Keke Li <[e-mail]>
+L:	[e-mail]
+S:	Maintained
+F:	Documentation/devicetree/bindings/media/amlogic,c3-isp.yaml
+
 AMLOGIC MIPI ADAPTER DRIVER
 M:	Keke Li <[e-mail]>
 L:	[e-mail]