пн, 6 жовт. 2025 р. о 23:31 Rob Herring <[email protected]> пише:
>
> On Thu, Oct 02, 2025 at 08:14:22AM +0300, Svyatoslav Ryhel wrote:
> > чт, 2 жовт. 2025 р. о 04:52 Rob Herring <[email protected]> пише:
> > >
> > > On Thu, Sep 25, 2025 at 06:16:46PM +0300, Svyatoslav Ryhel wrote:
> > > > Document CSI HW block found in Tegra20 and Tegra30 SoC.
> > > >
> > > > Signed-off-by: Svyatoslav Ryhel <[email protected]>
> > > > ---
> > > >  .../display/tegra/nvidia,tegra20-csi.yaml     | 135 ++++++++++++++++++
> > > >  1 file changed, 135 insertions(+)
> > > >  create mode 100644 
> > > > Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-csi.yaml
> > > >
> > > > diff --git 
> > > > a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-csi.yaml
> > > >  
> > > > b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-csi.yaml
> > > > new file mode 100644
> > > > index 000000000000..817b3097846b
> > > > --- /dev/null
> > > > +++ 
> > > > b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-csi.yaml
> > > > @@ -0,0 +1,135 @@
> > > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > > > +%YAML 1.2
> > > > +---
> > > > +$id: 
> > > > http://devicetree.org/schemas/display/tegra/nvidia,tegra20-csi.yaml#
> > > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > > +
> > > > +title: NVIDIA Tegra20 CSI controller
> > > > +
> > > > +maintainers:
> > > > +  - Svyatoslav Ryhel <[email protected]>
> > > > +
> > > > +properties:
> > > > +  compatible:
> > > > +    enum:
> > > > +      - nvidia,tegra20-csi
> > > > +      - nvidia,tegra30-csi
> > > > +
> > > > +  reg:
> > > > +    maxItems: 1
> > > > +
> > > > +  clocks: true
> > > > +  clock-names: true
> > > > +
> > > > +  avdd-dsi-csi-supply:
> > > > +    description: DSI/CSI power supply. Must supply 1.2 V.
> > > > +
> > > > +  power-domains:
> > > > +    maxItems: 1
> > > > +
> > > > +  "#nvidia,mipi-calibrate-cells":
> > > > +    description:
> > > > +      The number of cells in a MIPI calibration specifier. Should be 1.
> > > > +      The single cell specifies an id of the pad that need to be
> > > > +      calibrated for a given device. Valid pad ids for receiver would 
> > > > be
> > > > +      0 for CSI-A; 1 for CSI-B; 2 for DSI-A and 3 for DSI-B.
> > > > +    $ref: /schemas/types.yaml#/definitions/uint32
> > > > +    const: 1
> > >
> > > Sorry I didn't bring this up before, but is this ever not 1? If it is
> > > fixed, then you don't really need the property. I prefer it just be
> > > fixed rather than getting a bunch of vendor specific #foo-cells.
> > >
> >
> > This is not an introduction of property, such property already exists
> > in Documentation/devicetree/bindings/display/tegra/nvidia,tegra114-mipi.yaml
> > and is used in multiple device trees. As I have told before, in case
> > of Tegra30 and Tegra20 CSI block combines mipi calibration function
> > and CSI function, in Tegra114+ mipi calibration got a dedicated
> > hardware block which is already supported. This property here is used
> > to align with mipi-calibration logic used by Tegra114+
>
> Okay.
>
> You will have to continue to tell me again if my past questions are not
> addressed in the commit message. A review only last week was 100+
> patches ago. Don't expect I'll remember nor go re-read prior versions.
>

That is not a problem, I did not meant to offend you. I will add info
into commit message.

> Ideally, we don't define the type of a property more than once. So this
> should really first be moved to its own shared schema that's referenced
> here and in the original user. Then it is perfectly clear reading the
> patches that this is not a new property.
>

I am not sure that creating a dedicated shared schema for a single
properly which is used by 2 schemas worth it, though, if it is
preferred, may the refactoring be done in followups later?

> Rob

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