media: dt-bindings: nokia,smia: Amend SMIA bindings with MIPI CCS support

Amend the existing SMIA bindings by adding MIPI CCS support, with separate
compatible strings for CCS 1.0 and CCS 1.1. Rename the old bindings
accordingly as CCS is the current standard.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Documentation/devicetree/bindings/media/i2c/mipi-ccs.yaml

@@ -1,26 +1,37 @@
 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 # Copyright (C) 2014--2020 Intel Corporation
 
-$id: http://devicetree.org/schemas/media/i2c/nokia,smia.yaml#
+$id: http://devicetree.org/schemas/media/i2c/mipi-ccs.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: SMIA/SMIA++ sensor
+title: MIPI CCS, SMIA++ and SMIA compliant camera sensors
 
 maintainers:
   - Sakari Ailus <sakari.ailus@linux.intel.com>
 
 description:
 
+  CCS (Camera Command Set) is a raw Bayer camera sensor standard defined by the
+  MIPI Alliance; see
+  <URL:https://www.mipi.org/specifications/camera-command-set>.
+
   SMIA (Standard Mobile Imaging Architecture) is an image sensor standard
   defined jointly by Nokia and ST. SMIA++, defined by Nokia, is an extension of
-  that. These definitions are valid for both types of sensors.
+  that.
 
   More detailed documentation can be found in
   Documentation/devicetree/bindings/media/video-interfaces.txt .
 
 properties:
   compatible:
-    const: nokia,smia
+    oneOf:
+      - items:
+        - const: mipi-ccs-1.1
+        - const: mipi-ccs
+      - items:
+        - const: mipi-ccs-1.0
+        - const: mipi-ccs
+      - const: nokia,smia
 
   reg:
     maxItems: 1
@@ -89,14 +100,14 @@ examples:
         clock-frequency = <400000>;
 
         camera-sensor@10 {
-            compatible = "nokia,smia";
+            compatible = "mipi-ccs-1.0", "mipi-ccs";
             reg = <0x10>;
             reset-gpios = <&gpio3 20 GPIO_ACTIVE_LOW>;
             vana-supply = <&vaux3>;
             clocks = <&omap3_isp 0>;
             clock-frequency = <9600000>;
             port {
-                smiapp_ep: endpoint {
+                ccs_ep: endpoint {
                     data-lanes = <1 2>;
                     remote-endpoint = <&csi2a_ep>;
                     link-frequencies = /bits/ 64 <199200000 210000000

MAINTAINERS

@@ -11634,7 +11634,7 @@ MIPI CCS, SMIA AND SMIA++ IMAGE SENSOR DRIVER
 M:	Sakari Ailus <sakari.ailus@linux.intel.com>
 L:	linux-media@vger.kernel.org
 S:	Maintained
-F:	Documentation/devicetree/bindings/media/i2c/nokia,smia.yaml
+F:	Documentation/devicetree/bindings/media/i2c/mipi-ccs.yaml
 F:	Documentation/driver-api/media/drivers/ccs/
 F:	drivers/media/i2c/ccs/
 F:	drivers/media/i2c/smiapp-pll.c