[PATCH v7 1/7] dt-bindings: display: renesas,cmm: Add R-Car CMM documentation

From: Jacopo Mondi
Date: Wed Nov 13 2019 - 05:04:20 EST


Add device tree bindings documentation for the Renesas R-Car Display
Unit Color Management Module.

CMM is the image enhancement module available on each R-Car DU video
channel on R-Car Gen2 and Gen3 SoCs (V3H and V3M excluded).

Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Signed-off-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
---
.../bindings/display/renesas,cmm.yaml | 67 +++++++++++++++++++
1 file changed, 67 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/renesas,cmm.yaml

diff --git a/Documentation/devicetree/bindings/display/renesas,cmm.yaml b/Documentation/devicetree/bindings/display/renesas,cmm.yaml
new file mode 100644
index 000000000000..a57037b9e9ba
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/renesas,cmm.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/renesas,cmm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas R-Car Color Management Module (CMM)
+
+maintainers:
+ - Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
+ - Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
+ - Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
+
+description: |+
+ Renesas R-Car color management module connected to R-Car DU video channels.
+ It provides image enhancement functions such as 1-D look-up tables (LUT),
+ 3-D look-up tables (CLU), 1D-histogram generation (HGO), and color
+ space conversion (CSC).
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - renesas,r8a7795-cmm
+ - renesas,r8a7796-cmm
+ - renesas,r8a77965-cmm
+ - renesas,r8a77990-cmm
+ - renesas,r8a77995-cmm
+ - const: renesas,rcar-gen3-cmm
+ - items:
+ - const: renesas,rcar-gen2-cmm
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - resets
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/r8a7796-cpg-mssr.h>
+ #include <dt-bindings/power/r8a7796-sysc.h>
+
+ cmm0: cmm@fea40000 {
+ compatible = "renesas,r8a7796-cmm",
+ "renesas,rcar-gen3-cmm";
+ reg = <0 0xfea40000 0 0x1000>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ clocks = <&cpg CPG_MOD 711>;
+ resets = <&cpg 711>;
+ };
--
2.23.0