linux-kernel - Re: [PATCH v2 12/12] dt-bindings: arm: bcm: Convert BCM2835 firmware binding to YAML

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Date:   Sun, 22 Mar 2020 14:35:17 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Rob Herring <robh@...nel.org>
Cc:     linux-arm-kernel@...ts.infradead.org,
        Mark Rutland <mark.rutland@....com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        "maintainer:BROADCOM IPROC ARM ARCHITECTURE" 
        <bcm-kernel-feedback-list@...adcom.com>,
        Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        Sugaya Taichi <sugaya.taichi@...ionext.com>,
        Andrew Jeffery <andrew@...id.au>,
        Arnd Bergmann <arnd@...db.de>, Joel Stanley <joel@....id.au>,
        Maxime Ripard <mripard@...nel.org>,
        Vinod Koul <vkoul@...nel.org>,
        "james.tai" <james.tai@...ltek.com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        "moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE" 
        <linux-rpi-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 12/12] dt-bindings: arm: bcm: Convert BCM2835 firmware
 binding to YAML



On 2/6/2020 11:23 AM, Rob Herring wrote:
> On Tue, Feb 04, 2020 at 03:55:52PM -0800, Florian Fainelli wrote:
>> Convert the Raspberry Pi BCM2835 firmware binding document to YAML.
>> Verified with dt_binding_check and dtbs_check.
>>
>> Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
>> ---
>>  .../arm/bcm/raspberrypi,bcm2835-firmware.txt  | 14 --------
>>  .../arm/bcm/raspberrypi,bcm2835-firmware.yaml | 33 +++++++++++++++++++
>>  2 files changed, 33 insertions(+), 14 deletions(-)
>>  delete mode 100644 Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.txt
>>  create mode 100644 Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.txt b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.txt
>> deleted file mode 100644
>> index 6824b3180ffb..000000000000
>> --- a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.txt
>> +++ /dev/null
>> @@ -1,14 +0,0 @@
>> -Raspberry Pi VideoCore firmware driver
>> -
>> -Required properties:
>> -
>> -- compatible:		Should be "raspberrypi,bcm2835-firmware"
>> -- mboxes:		Phandle to the firmware device's Mailbox.
>> -			  (See: ../mailbox/mailbox.txt for more information)
>> -
>> -Example:
>> -
>> -firmware {
>> -	compatible = "raspberrypi,bcm2835-firmware";
>> -	mboxes = <&mailbox>;
>> -};
>> diff --git a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
>> new file mode 100644
>> index 000000000000..db355d970f2b
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
>> @@ -0,0 +1,33 @@
>> +# SPDX-License-Identifier: GPL-2.0
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/arm/bcm/raspberrypi,bcm2835-firmware.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Raspberry Pi VideoCore firmware driver
>> +
>> +maintainers:
>> +  - Eric Anholt <eric@...olt.net>
>> +  - Stefan Wahren <wahrenst@....net>
>> +
>> +properties:
>> +  compatible:
>> +    const: raspberrypi,bcm2835-firmware simple-bus
>                                           ^
> 
> I need to check for spaces with the meta-schema...

I believe I had tried to use:

const: raspberrypi,bcm2835-firmware
const: simple-bus

but this did not work, and I had to resort to doing this.

> 
>> +
>> +  mboxes:
>> +    $ref: '/schemas/types.yaml#/definitions/phandle'
> 
> Already has a type, just need to define how many items and what they are 
> if more than one.

OK, thanks!
-- 
Florian