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Message-ID: <ee201484-78b4-4c7a-97ad-e5dea0748b04@broadcom.com>
Date: Mon, 5 Feb 2024 10:06:23 -0800
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Subject: Re: [PATCH v4 02/12] dt-bindings: mtd: brcmnand: Add WP pin
 connection property
To: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Linux MTD List <linux-mtd@lists.infradead.org>,
 Linux ARM List <linux-arm-kernel@lists.infradead.org>,
 Broadcom Kernel List <bcm-kernel-feedback-list@broadcom.com>,
 f.fainelli@gmail.com, kursad.oney@broadcom.com, joel.peshkin@broadcom.com,
 anand.gore@broadcom.com, dregan@mail.com, kamal.dasu@broadcom.com,
 tomer.yacoby@broadcom.com, dan.beygelman@broadcom.com,
 devicetree@vger.kernel.org, Brian Norris <computersforpeace@gmail.com>,
 linux-kernel@vger.kernel.org, Conor Dooley <conor+dt@kernel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
 Vignesh Raghavendra <vigneshr@ti.com>, Richard Weinberger <richard@nod.at>,
 Kamal Dasu <kdasu.kdev@gmail.com>, Rob Herring <robh+dt@kernel.org>
References: <20240203002834.171462-1-william.zhang@broadcom.com>
 <20240203002834.171462-3-william.zhang@broadcom.com>
 <20240205143246.52ee97ec@xps-13>
From: William Zhang <william.zhang@broadcom.com>
In-Reply-To: <20240205143246.52ee97ec@xps-13>
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On 2/5/24 05:32, Miquel Raynal wrote:
> Hi William,
> 
> william.zhang@broadcom.com wrote on Fri,  2 Feb 2024 16:28:23 -0800:
> 
>> Add brcm,wp-not-connected property to have an option for disabling this
>> feature on broadband board design that does not connect WP pin.
>>
>> Signed-off-by: William Zhang <william.zhang@broadcom.com>
>>
>> ---
>>
>> Changes in v4:
>> - Move the WP pin property to this separate patch and change it to
>> boolean type.
>>
>> Changes in v3: None
>> Changes in v2: None
>>
>>   Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml | 8 ++++++++
>>   1 file changed, 8 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml
>> index e54ca08a798a..d0168d55c73e 100644
>> --- a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml
>> +++ b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml
>> @@ -113,6 +113,14 @@ properties:
>>         earlier versions of this core that include WP
>>       type: boolean
>>   
>> +  brcm,wp-not-connected:
>> +    description:
>> +      Use this property when board design does not connect controller's
>> +      NAND_WPb pin to NAND chip's WP_L pin and disable the write
>> +      protection feature. By default, controller assumes the pin is
>> +      connected and feature is used.
> 
> I would rephrase slightly. What about:
> 
> 	 WP pin is not physically wired to the NAND chip. Write
> 	 protection feature cannot be used.
>   
That's fine with me.  Will update.

>> +    $ref: /schemas/types.yaml#/definitions/flag
>> +
>>   patternProperties:
>>     "^nand@[a-f0-9]$":
>>       type: object
> 
> 
> Thanks,
> Miquèl

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