linux-kernel - Re: [PATCH V2 1/2] dt-bindings: power: document Broadcom's PMB binding

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Date:   Tue, 12 Jan 2021 14:14:18 +0100
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Rafał Miłecki <zajec5@...il.com>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Kevin Hilman <khilman@...nel.org>,
        DTML <devicetree@...r.kernel.org>,
        BCM Kernel Feedback <bcm-kernel-feedback-list@...adcom.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Rafał Miłecki <rafal@...ecki.pl>
Subject: Re: [PATCH V2 1/2] dt-bindings: power: document Broadcom's PMB binding

On Mon, 14 Dec 2020 at 19:08, Rafał Miłecki <zajec5@...il.com> wrote:
>
> From: Rafał Miłecki <rafal@...ecki.pl>
>
> Broadcom's PMB is power controller used for disabling and enabling SoC
> devices.
>
> Signed-off-by: Rafał Miłecki <rafal@...ecki.pl>

Apologize for the delay!

Acked-by: Ulf Hansson <ulf.hansson@...aro.org>

Kind regards
Uffe

> ---
>  .../bindings/power/brcm,bcm-pmb.yaml          | 50 +++++++++++++++++++
>  include/dt-bindings/soc/bcm-pmb.h             | 11 ++++
>  2 files changed, 61 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/power/brcm,bcm-pmb.yaml
>  create mode 100644 include/dt-bindings/soc/bcm-pmb.h
>
> diff --git a/Documentation/devicetree/bindings/power/brcm,bcm-pmb.yaml b/Documentation/devicetree/bindings/power/brcm,bcm-pmb.yaml
> new file mode 100644
> index 000000000000..40b08d83c80b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/brcm,bcm-pmb.yaml
> @@ -0,0 +1,50 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/power/brcm,bcm-pmb.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Broadcom PMB (Power Management Bus) controller
> +
> +description: This document describes Broadcom's PMB controller. It supports
> +  powering various types of connected devices (e.g. PCIe, USB, SATA).
> +
> +maintainers:
> +  - Rafał Miłecki <rafal@...ecki.pl>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - brcm,bcm4908-pmb
> +
> +  reg:
> +    description: register space of one or more buses
> +    maxItems: 1
> +
> +  big-endian:
> +    $ref: /schemas/types.yaml#/definitions/flag
> +    description: Flag to use for block working in big endian mode.
> +
> +  "#power-domain-cells":
> +    description: cell specifies device ID (see bcm-pmb.h)
> +    const: 1
> +
> +required:
> +  - reg
> +  - "#power-domain-cells"
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/soc/bcm-pmb.h>
> +
> +    pmb: power-controller@...800e0 {
> +        compatible = "brcm,bcm4908-pmb";
> +        reg = <0x802800e0 0x40>;
> +        #power-domain-cells = <1>;
> +    };
> +
> +    foo {
> +        power-domains = <&pmb BCM_PMB_PCIE0>;
> +    };
> diff --git a/include/dt-bindings/soc/bcm-pmb.h b/include/dt-bindings/soc/bcm-pmb.h
> new file mode 100644
> index 000000000000..744dc3af4d41
> --- /dev/null
> +++ b/include/dt-bindings/soc/bcm-pmb.h
> @@ -0,0 +1,11 @@
> +/* SPDX-License-Identifier: GPL-2.0-or-later OR MIT */
> +
> +#ifndef __DT_BINDINGS_SOC_BCM_PMB_H
> +#define __DT_BINDINGS_SOC_BCM_PMB_H
> +
> +#define BCM_PMB_PCIE0                          0x01
> +#define BCM_PMB_PCIE1                          0x02
> +#define BCM_PMB_PCIE2                          0x03
> +#define BCM_PMB_HOST_USB                       0x04
> +
> +#endif
> --
> 2.26.2
>