Commit c5e8f4cc authored by Maxime Ripard's avatar Maxime Ripard Committed by Mauro Carvalho Chehab
Browse files

media: dt-bindings: media: Add Allwinner A10 CSI binding 



The Allwinner A10 CMOS Sensor Interface is a camera capture interface also
used in later (A10s, A13, A20, R8 and GR8) SoCs.

On some SoCs, like the A10, there's multiple instances of that controller,
with one instance supporting more channels and having an ISP.

[Sakari Ailus: Add type: object to the endpoint node.]

Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarMaxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
parent 623fd246

Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml

0 → 100644
+109 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/arm/allwinner,sun4i-a10-csi.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Allwinner A10 CMOS Sensor Interface (CSI) Device Tree Bindings



maintainers:

  - Chen-Yu Tsai <wens@csie.org>

  - Maxime Ripard <maxime.ripard@bootlin.com>



description: |-

  The Allwinner A10 and later has a CMOS Sensor Interface to retrieve

  frames from a parallel or BT656 sensor.



properties:

  compatible:

    const: allwinner,sun7i-a20-csi0



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  clocks:

    items:

      - description: The CSI interface clock

      - description: The CSI module clock

      - description: The CSI ISP clock

      - description: The CSI DRAM clock



  clock-names:

    items:

      - const: bus

      - const: mod

      - const: isp

      - const: ram



  resets:

    maxItems: 1



  # See ./video-interfaces.txt for details

  port:

    type: object

    additionalProperties: false



    properties:

      endpoint:

        type: object



        properties:

          bus-width:

            enum: [8, 16]



          data-active: true

          hsync-active: true

          pclk-sample: true

          remote-endpoint: true

          vsync-active: true



        required:

          - bus-width

          - data-active

          - hsync-active

          - pclk-sample

          - remote-endpoint

          - vsync-active



    required:

      - endpoint



required:

  - compatible

  - reg

  - interrupts

  - clocks



additionalProperties: false



examples:

  - |

    #include <dt-bindings/interrupt-controller/arm-gic.h>

    #include <dt-bindings/clock/sun7i-a20-ccu.h>

    #include <dt-bindings/reset/sun4i-a10-ccu.h>



    csi0: csi@1c09000 {

        compatible = "allwinner,sun7i-a20-csi0";

        reg = <0x01c09000 0x1000>;

        interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;

        clocks = <&ccu CLK_AHB_CSI0>, <&ccu CLK_CSI0>,

                 <&ccu CLK_CSI_SCLK>, <&ccu CLK_DRAM_CSI0>;

        clock-names = "bus", "mod", "isp", "ram";

        resets = <&ccu RST_CSI0>;



        port {

            csi_from_ov5640: endpoint {

                remote-endpoint = <&ov5640_to_csi>;

                bus-width = <8>;

                hsync-active = <1>; /* Active high */

                vsync-active = <0>; /* Active low */

                data-active = <1>;  /* Active high */

                pclk-sample = <1>;  /* Rising */

            };

        };

    };



...

MAINTAINERS

+7 −0
Original line number Diff line number Diff line
@@ -1421,6 +1421,13 @@ F: drivers/pinctrl/sunxi/ 
F:	drivers/soc/sunxi/

T:	git git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux.git



Allwinner A10 CSI driver

M:	Maxime Ripard <mripard@kernel.org>

L:	linux-media@vger.kernel.org

T:	git git://linuxtv.org/media_tree.git

F:	Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml

S:	Maintained



ARM/Amlogic Meson SoC CLOCK FRAMEWORK

M:	Neil Armstrong <narmstrong@baylibre.com>

M:	Jerome Brunet <jbrunet@baylibre.com>

CRA Git | Maintained and supported by SUSTech CRA and CCSE