linux-kernel - Re: [PATCH v3 1/2] mtd: devices: add devicetree documentation for microchip 48l640

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Date:   Thu, 3 Jun 2021 05:51:17 +0200
From:   Heiko Schocher <hs@...x.de>
To:     Rob Herring <robh@...nel.org>
Cc:     linux-mtd@...ts.infradead.org, Fabio Estevam <festevam@...x.de>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/2] mtd: devices: add devicetree documentation for
 microchip 48l640

Hello Rob,

On 02.06.21 21:29, Rob Herring wrote:
> On Tue, Jun 01, 2021 at 06:35:45AM +0200, Heiko Schocher wrote:
>> The Microchip 48l640 is a 8KByte EERAM connected via SPI.
>> Add devicetree bindings documentation.
>>
>> Signed-off-by: Heiko Schocher <hs@...x.de>
>> ---
>>
>> Changes in v3:
>> Add Fabio to cc
>>
>> Changes in v2:
>> as Rob helped, fix warnings from running command
>> 'make DT_CHECKER_FLAGS=-m dt_binding_check'
>>
>>  .../bindings/mtd/microchip,mchp48l640.yaml    | 45 +++++++++++++++++++
>>  1 file changed, 45 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml b/Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml
>> new file mode 100644
>> index 0000000000000..08089f2db0761
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml
>> @@ -0,0 +1,45 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: "http://devicetree.org/schemas/mtd/microchip,mchp48l640.yaml#"
>> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
>> +
>> +title: MTD SPI driver for Microchip 48l640 (and similar) serial EERAM
> 
> This is not the driver.

Ok, I would change to:

title: Microchip 48l640 (and similar) serial EERAM bindings

ok?

>> +
>> +maintainers:
>> +  - Heiko Schocher <hs@...x.de>
>> +
>> +description: |
>> +  The Microchip 48l640 is a 8KByte EERAM connected via SPI.
>> +
>> +  datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/20006055B.pdf
>> +
>> +properties:
>> +  compatible:
>> +    items:
>> +      - const: microchip,48l640
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  spi-max-frequency: true
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    spi {
>> +      #address-cells = <1>;
>> +      #size-cells = <0>;
>> +
>> +      spi-eeram@0 {
> 
> eeram@0

changed.

> Otherwise,
> 
> Reviewed-by: Rob Herring <robh@...nel.org>

Thanks for your time!

I would wait with a v4 if I get comments for the driver
(or wait some time...)

>> +        compatible = "microchip,48l640";
>> +        reg = <0>;
>> +        spi-max-frequency = <20000000>;
>> +      };
>> +    };
>> +...
>> -- 
>> 2.31.1

bye,
Heiko
-- 
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