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Message-ID: <CAL_JsqJD4ZeR+n09gC2fXnk1MFuqO0c0zADSg_-MiY65pck1Yw@mail.gmail.com>
Date: Wed, 27 Dec 2023 11:27:15 -0700
From: Rob Herring <robh+dt@...nel.org>
To: Théo Lebrun <theo.lebrun@...tlin.com>
Cc: Gregory CLEMENT <gregory.clement@...tlin.com>,
Michael Turquette <mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>,
Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
Vladimir Kondratiev <vladimir.kondratiev@...ileye.com>, linux-mips@...r.kernel.org,
linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
Tawfik Bayouk <tawfik.bayouk@...ileye.com>
Subject: Re: [PATCH v2 3/6] dt-bindings: soc: mobileye: add EyeQ5 OLB system controller
On Wed, Dec 27, 2023 at 10:24 AM Théo Lebrun <theo.lebrun@...tlin.com> wrote:
>
> Add documentation to describe the "Other Logic Block" syscon.
>
> Signed-off-by: Théo Lebrun <theo.lebrun@...tlin.com>
> ---
> .../bindings/soc/mobileye/mobileye,eyeq5-olb.yaml | 44 ++++++++++++++++++++++
> MAINTAINERS | 1 +
> 2 files changed, 45 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..b148a49b08f1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/mobileye/mobileye,eyeq5-olb.yaml
> @@ -0,0 +1,44 @@
> +# 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 EyeQ5 SoC system controller
> +
> +maintainers:
> + - Grégory Clement <gregory.clement@...tlin.com>
> + - Théo Lebrun <theo.lebrun@...tlin.com>
> + - Vladimir Kondratiev <vladimir.kondratiev@...ileye.com>
> +
> +description:
> + OLB ("Other Logic Block") is a hardware block grouping smaller blocks. Clocks,
> + resets, pinctrl are being handled from here.
I don't see resets or pinctrl in the binding. Please make it complete
whether you have the driver or not.
As-is, you don't need clocks to be a child node.
> +
> +properties:
> + compatible:
> + items:
> + - const: mobileye,eyeq5-olb
> + - const: syscon
> + - const: simple-mfd
> +
> + reg:
> + maxItems: 1
> +
> + reg-io-width:
> + const: 4
Why do you need this? It is not a generic block and can only ever be 1 value.
> +
> +required:
> + - compatible
> + - reg
> + - reg-io-width
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + olb@...000 {
> + compatible = "mobileye,eyeq5-olb", "syscon", "simple-mfd";
> + reg = <0xe00000 0x400>;
> + reg-io-width = <4>;
Make this example complete and drop the child node example.
Rob
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