linux-kernel - Re: [PATCH v6 2/5] dt-bindings: mailbox: add google,gs101-mbox

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Message-ID: <uo4zvw4sl6uxsj2ewvoue7l3obugivq5z74ukwnd4sj3ndtwhu@hxxque3r4nvb>
Date: Sun, 22 Dec 2024 09:44:10 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Tudor Ambarus <tudor.ambarus@...aro.org>
Cc: Jassi Brar <jassisinghbrar@...il.com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Alim Akhtar <alim.akhtar@...sung.com>, linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, andre.draszik@...aro.org, 
	peter.griffin@...aro.org, kernel-team@...roid.com, willmcvicker@...gle.com, 
	daniel.lezcano@...aro.org, vincent.guittot@...aro.org, ulf.hansson@...aro.org, 
	arnd@...db.de
Subject: Re: [PATCH v6 2/5] dt-bindings: mailbox: add google,gs101-mbox

On Fri, Dec 20, 2024 at 01:49:57PM +0000, Tudor Ambarus wrote:
> Add bindings for the Samsung Exynos Mailbox Controller.
> 
> Signed-off-by: Tudor Ambarus <tudor.ambarus@...aro.org>
> ---
>  .../bindings/mailbox/google,gs101-mbox.yaml        | 70 ++++++++++++++++++++++
>  include/dt-bindings/mailbox/google,gs101.h         | 14 +++++

Drop the header, not used.

>  2 files changed, 84 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mailbox/google,gs101-mbox.yaml b/Documentation/devicetree/bindings/mailbox/google,gs101-mbox.yaml
> new file mode 100644
> index 000000000000..a1fbc3b2b9de
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mailbox/google,gs101-mbox.yaml
> @@ -0,0 +1,70 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +# Copyright 2024 Linaro Ltd.
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mailbox/google,gs101-mbox.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Samsung Exynos Mailbox Controller
> +
> +maintainers:
> +  - Tudor Ambarus <tudor.ambarus@...aro.org>
> +
> +description: |

Drop |

> +  The Samsung Exynos mailbox controller, used on Google GS101 SoC, has 16 flag
> +  bits for hardware interrupt generation and a shared register for passing
> +  mailbox messages. When the controller is used by the ACPM protocol the shared
> +  register is ignored and the mailbox controller acts as a doorbell.
> +  The controller just raises the interrupt to the firmware after the
> +  ACPM protocol has written the message to SRAM.
> +
> +properties:
> +  compatible:
> +    const: google,gs101-mbox
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-names:
> +    items:
> +      - const: pclk
> +
> +  interrupts:
> +    description: IRQ line for the RX mailbox.
> +    maxItems: 1
> +
> +  '#mbox-cells':
> +    const: 0
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - interrupts
> +  - '#mbox-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  # Doorbell mode.

Drop comment, not applicable now, I think.

Best regards,
Krzysztof