Re: [PATCH 1/1] dt-bindings: media: convert imx.txt to yaml format

Frank Li
2025-04-16T15:17:38Z

On Wed, Apr 16, 2025 at 07:42:26AM -0500, Rob Herring wrote:
> On Mon, Apr 14, 2025 at 05:07:18PM -0400, Frank Li wrote:
> > Convert binding doc imx.txt to yaml format. Create two yaml files:
> > fsl,imx6-mipi-csi2.yaml and fsl,imx-capture-subsystem.yaml.
> >
> > Additional changes:
> > - add example for fsl,imx6-mipi-csi2
> >
> > Signed-off-by: Frank Li <Frank.Li@nxp.com>
> > ---
> > .../media/fsl,imx-capture-subsystem.yaml | 38 ++++++
> > .../bindings/media/fsl,imx6-mipi-csi2.yaml | 126 ++++++++++++++++++
> > .../devicetree/bindings/media/imx.txt | 53 --------
> > 3 files changed, 164 insertions(+), 53 deletions(-)
> > create mode 100644 Documentation/devicetree/bindings/media/fsl,imx-capture-subsystem.yaml
> > create mode 100644 Documentation/devicetree/bindings/media/fsl,imx6-mipi-csi2.yaml
> > delete mode 100644 Documentation/devicetree/bindings/media/imx.txt
> >
> > diff --git a/Documentation/devicetree/bindings/media/fsl,imx-capture-subsystem.yaml b/Documentation/devicetree/bindings/media/fsl,imx-capture-subsystem.yaml
> > new file mode 100644
> > index 0000000000000..77be3c1f37c5b
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/media/fsl,imx-capture-subsystem.yaml
> > @@ -0,0 +1,38 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/media/fsl,imx-capture-subsystem.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Freescale i.MX Media Video Device
> > +
...
> > + reg = <0x021dc000 0x4000>;
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + clocks = <&clks IMX6QDL_CLK_HSI_TX>,
> > + <&clks IMX6QDL_CLK_VIDEO_27M>,
> > + <&clks IMX6QDL_CLK_EIM_PODF>;
> > + clock-names = "dphy", "ref", "pix";
> > +
> > + port@0 {
> > + reg = <0>;
> > +
> > + endpoint {
> > + remote-endpoint = <&ov5640_to_mipi_csi2>;
> > + clock-lanes = <0>;
> > + data-lanes = <1 2>;
> > + };
> > + };
>
> I would think at least 1 output port is required?

I checked dts file, only input port. I think old csi2 only need get data
from camera. csi's dma should save to memory.

Frank

>
>
> > + };
> > +