linux-kernel - [PATCH 12/16] dt-bindings: media: Add DT bindings for TI CSI2RX driver

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Date:   Tue, 30 Mar 2021 23:03:44 +0530
From:   Pratyush Yadav <p.yadav@...com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Peter Ujfalusi <peter.ujfalusi@...il.com>,
        Maxime Ripard <mripard@...nel.org>,
        Benoit Parrot <bparrot@...com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Alexandre Courbot <acourbot@...omium.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        Helen Koike <helen.koike@...labora.com>,
        Michael Tretter <m.tretter@...gutronix.de>,
        Peter Chen <peter.chen@....com>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        <linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-phy@...ts.infradead.org>,
        <dmaengine@...r.kernel.org>
CC:     Pratyush Yadav <p.yadav@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
Subject: [PATCH 12/16] dt-bindings: media: Add DT bindings for TI CSI2RX driver

TI's J721E uses the Cadence CSI2RX and DPHY peripherals to facilitate
capture over a CSI-2 bus. The TI CSI2RX platform driver glues all the
parts together.

Signed-off-by: Pratyush Yadav <p.yadav@...com>
---
 .../devicetree/bindings/media/ti,csi2rx.yaml  | 70 +++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/ti,csi2rx.yaml

diff --git a/Documentation/devicetree/bindings/media/ti,csi2rx.yaml b/Documentation/devicetree/bindings/media/ti,csi2rx.yaml
new file mode 100644
index 000000000000..ebd894364391
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/ti,csi2rx.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/ti,csi2rx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI CSI2RX Wrapper Device Tree Bindings
+
+maintainers:
+  - Pratyush Yadav <p.yadav@...com>
+
+properties:
+  compatible:
+    items:
+      - const: ti,csi2rx
+
+  dmas:
+    description: RX DMA Channel 0
+
+  dma-names:
+    items:
+      - const: rx0
+
+  reg:
+    maxItems: 1
+    description: Base address and size of the TI wrapper registers.
+
+  power-domains:
+    maxItems: 1
+    description:
+      PM domain provider node and an args specifier containing
+      the device id value.
+
+  ranges: true
+
+  "#address-cells":
+    const: 2
+
+  "#size-cells":
+    const: 2
+
+patternProperties:
+  "csi-bridge@":
+    type: object
+    description: CSI2 bridge node.
+
+required:
+  - compatible
+  - reg
+  - dmas
+  - dma-names
+  - power-domains
+  - "#address-cells"
+  - "#size-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/soc/ti,sci_pm_domain.h>
+
+    ti_csi2rx0: ticsi2rx {
+        compatible = "ti,csi2rx";
+        dmas = <&main_udmap 0x4940>;
+        dma-names = "rx0";
+        reg = <0x0 0x4500000 0x0 0x1000>;
+        power-domains = <&k3_pds 26 TI_SCI_PD_EXCLUSIVE>;
+        #address-cells = <2>;
+        #size-cells = <2>;
+    };
-- 
2.30.0