Re: [PATCH v2 03/11] dt-bindings: soc: mobileye: add EyeQ OLB system controller

[Rob Herring <robh@kernel.org>]

On Fri, May 03, 2024 at 04:20:48PM +0200, Théo Lebrun wrote:
> Add documentation to describe the "Other Logic Block" system-controller.
> It deals with three platforms: EyeQ5, EyeQ6L and EyeQ6H. First two have
> a single instance, whereas EyeQ6H has seven named instances.
> 
> Features provided are:
>  - Clocks, children to main crystal. Some PLLs and divider clocks.
>  - Resets. EyeQ6H central, south, DDR0 and DDR1 do not have resets.
>  - Pinctrl. Only EyeQ5 has such feature.
> 
> Those are NOT the only registers exposed in OLB system-controllers! Many
> individual registers, related to IP block integration, can be found.
> 
> We simplify devicetree references to OLB in two ways:
>  - Compatibles exposing a single clock do not ask for a index argument.
>  - Compatibles exposing a single reset domain do not ask for a domain
>    index, only a reset index.
> 
> About pinctrl subnodes: all pins have two functionality, either GPIO or
> something-else. The latter is pin dependent, we express constraints
> using many if-then.
> 
> Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
> ---
>  .../bindings/soc/mobileye/mobileye,eyeq5-olb.yaml  | 375 +++++++++++++++++++++
>  MAINTAINERS                                        |   2 +
>  include/dt-bindings/clock/mobileye,eyeq5-clk.h     |  21 ++
>  3 files changed, 398 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/soc/mobileye/mobileye,eyeq5-olb.yaml b/Documentation/devicetree/bindings/soc/mobileye/mobileye,eyeq5-olb.yaml
> new file mode 100644
> index 000000000000..bbd75b81166e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/mobileye/mobileye,eyeq5-olb.yaml
> @@ -0,0 +1,375 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/mobileye/mobileye,eyeq5-olb.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Mobileye EyeQ SoC system controller
> +
> +maintainers:
> +  - Grégory Clement <gregory.clement@bootlin.com>
> +  - Théo Lebrun <theo.lebrun@bootlin.com>
> +  - Vladimir Kondratiev <vladimir.kondratiev@mobileye.com>
> +
> +description:
> +  OLB ("Other Logic Block") is a hardware block grouping smaller blocks. Clocks,
> +  resets, pinctrl are being handled from here. EyeQ5 and EyeQ6L host a single
> +  instance. EyeQ6H hosts seven instances.
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - mobileye,eyeq5-olb
> +          - mobileye,eyeq6l-olb
> +          - mobileye,eyeq6h-acc-olb
> +          - mobileye,eyeq6h-central-olb
> +          - mobileye,eyeq6h-east-olb
> +          - mobileye,eyeq6h-west-olb
> +          - mobileye,eyeq6h-south-olb
> +          - mobileye,eyeq6h-ddr0-olb
> +          - mobileye,eyeq6h-ddr1-olb
> +      - const: syscon
> +      - const: simple-mfd

You are getting rid of the child nodes, so you shouldn't need simple-mfd 
any more.

Rob