new file mode 100644
@@ -0,0 +1,103 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/brcm,bcm2835-unicam.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom BCM283x Camera Interface (Unicam)
+
+maintainers:
+ - Dave Stevenson <dave.stevenson@raspberrypi.com>
+
+description: |-
+ The Unicam block on BCM283x SoCs is the receiver for either
+ CSI-2 or CCP2 data from image sensors or similar devices.
+
+ The main platform using this SoC is the Raspberry Pi family of boards.
+ On the Pi the VideoCore firmware can also control this hardware block,
+ and driving it from two different processors will cause issues.
+ To avoid this, the firmware checks the device tree configuration
+ during boot. If it finds device tree nodes called csi0 or csi1 then
+ it will stop the firmware accessing the block, and it can then
+ safely be used via the device tree binding.
+
+properties:
+ compatible:
+ const: brcm,bcm2835-unicam
+
+ reg:
+ description:
+ physical base address and length of the register sets for the device.
+ maxItems: 1
+
+ interrupts:
+ description: the IRQ line for this Unicam instance.
+ maxItems: 1
+
+ clocks:
+ description: |-
+ list of clock specifiers, corresponding to entries in clock-names
+ property.
+
+ clock-names:
+ items:
+ - const: lp
+ - const: vpu
+
+ port:
+ $ref: /schemas/graph.yaml#/properties/port
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - port
+
+additionalProperties: False
+
+examples:
+ - |
+ csi1: csi1@7e801000 {
+ compatible = "brcm,bcm2835-unicam";
+ reg = <0x7e801000 0x800>,
+ <0x7e802004 0x4>;
+ interrupts = <2 7>;
+ clocks = <&clocks BCM2835_CLOCK_CAM1>,
+ <&firmware_clocks 4>;
+ clock-names = "lp", "vpu";
+ port {
+ csi1_ep: endpoint {
+ remote-endpoint = <&tc358743_0>;
+ data-lanes = <1 2>;
+ };
+ };
+ };
+
+ i2c0: i2c@7e205000 {
+ tc358743: csi-hdmi-bridge@0f {
+ compatible = "toshiba,tc358743";
+ reg = <0x0f>;
+ clocks = <&tc358743_clk>;
+ clock-names = "refclk";
+
+ tc358743_clk: bridge-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <27000000>;
+ };
+
+ port {
+ tc358743_0: endpoint {
+ remote-endpoint = <&csi1_ep>;
+ clock-lanes = <0>;
+ data-lanes = <1 2>;
+ clock-noncontinuous;
+ link-frequencies =
+ /bits/ 64 <297000000>;
+ };
+ };
+ };
+ };
+...
@@ -3679,6 +3679,12 @@ F: Documentation/media/v4l-drivers/bcm2835-isp.rst
F: drivers/staging/vc04_services/bcm2835-isp
F: include/uapi/linux/bcm2835-isp.h
+BROADCOM BCM2835 CAMERA DRIVER
+M: Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com>
+L: linux-media@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/media/brcm,bcm2835-unicam.yaml
+
BROADCOM BCM47XX MIPS ARCHITECTURE
M: Hauke Mehrtens <hauke@hauke-m.de>
M: Rafał Miłecki <zajec5@gmail.com>