linux-kernel - [PATCH 02/23] dt-bindings: display: tegra: vi: add 'vip' property and example

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Date:   Wed,  9 Nov 2022 15:18:31 +0100
From:   luca.ceresoli@...tlin.com
To:     David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Sowjanya Komatineni <skomatineni@...dia.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Dmitry Osipenko <digetx@...il.com>
Cc:     Luca Ceresoli <luca.ceresoli@...tlin.com>,
        linux-media@...r.kernel.org, linux-tegra@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-staging@...ts.linux.dev,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Richard Leitner <richard.leitner@...data.com>
Subject: [PATCH 02/23] dt-bindings: display: tegra: vi: add 'vip' property and example

From: Luca Ceresoli <luca.ceresoli@...tlin.com>

The Tegra20 VI peripheral can receive parallel input from the VIP parallel
input module. Add it to the allowed properties and augment the existing
nvidia,tegra20-vi example to show a 'vip' property.

Signed-off-by: Luca Ceresoli <luca.ceresoli@...tlin.com>
---
 .../display/tegra/nvidia,tegra20-vi.yaml      | 68 +++++++++++++++++++
 MAINTAINERS                                   |  1 +
 2 files changed, 69 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-vi.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-vi.yaml
index 782a4b10150a..aab795241dd6 100644
--- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-vi.yaml
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-vi.yaml
@@ -74,6 +74,22 @@ properties:
   avdd-dsi-csi-supply:
     description: DSI/CSI power supply. Must supply 1.2 V.
 
+  vip:
+    $ref: /schemas/display/tegra/nvidia,tegra20-vip.yaml
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          Input from the VIP (parallel input capture) module
+
+        properties:
+          endpoint:
+            $ref: /schemas/graph.yaml#/properties/endpoint
+
 patternProperties:
   "^csi@[0-9a-f]+$":
     type: object
@@ -109,6 +125,22 @@ examples:
     #include <dt-bindings/clock/tegra20-car.h>
     #include <dt-bindings/interrupt-controller/arm-gic.h>
 
+    i2c3 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        camera@48 {
+            compatible = "aptina,mt9v111";
+            reg = <0x48>;
+            clocks = <&camera_clk>;
+
+            port {
+                mt9v111_out: endpoint {
+                    remote-endpoint = <&vi_vip_in>;
+                };
+            };
+        };
+    };
+
     vi@...80000 {
         compatible = "nvidia,tegra20-vi";
         reg = <0x54080000 0x00040000>;
@@ -116,6 +148,42 @@ examples:
         clocks = <&tegra_car TEGRA20_CLK_VI>;
         resets = <&tegra_car 100>;
         reset-names = "vi";
+
+        vip {
+            compatible = "nvidia,tegra20-vip";
+            #address-cells = <1>;
+            #size-cells = <0>;
+            channel@0 {
+                reg = <0>;
+                ports {
+                    #address-cells = <1>;
+                    #size-cells = <0>;
+                    port@0 {
+                        reg = <0>;
+                        vi_vip_in: endpoint {
+                            remote-endpoint = <&mt9v111_out>;
+                        };
+                    };
+                    port@1 {
+                        reg = <1>;
+                        vi_vip_out: endpoint {
+                            remote-endpoint = <&vi_in>;
+                        };
+                    };
+                };
+            };
+        };
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+            port@0 {
+                reg = <0>;
+                vi_in: endpoint {
+                    remote-endpoint = <&vi_vip_out>;
+                };
+            };
+        };
     };
 
   - |
diff --git a/MAINTAINERS b/MAINTAINERS
index b43f6f4e8ccf..0a4f66a32e45 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -20284,6 +20284,7 @@ M:	Luca Ceresoli <luca.ceresoli@...tlin.com>
 L:	linux-media@...r.kernel.org
 L:	linux-tegra@...r.kernel.org
 S:	Maintained
+F:	Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-vi.yaml
 F:	Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-vip.yaml
 
 TEGRA XUSB PADCTL DRIVER
-- 
2.34.1