linux-kernel - Re: [PATCH v2 2/5] mtd: spinand: add OTP support

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Message-ID: <bb137aef-4ca9-4825-99b7-12f7e17c9550@salutedevices.com>
Date: Tue, 27 Aug 2024 20:57:04 +0300
From: Martin Kurbanov <mmkurbanov@...utedevices.com>
To: Miquel Raynal <miquel.raynal@...tlin.com>
CC: <linux-kernel@...r.kernel.org>, <linux-mtd@...ts.infradead.org>,
	<kernel@...utedevices.com>, Richard Weinberger <richard@....at>, "Vignesh
 Raghavendra" <vigneshr@...com>, Mika Westerberg
	<mika.westerberg@...ux.intel.com>, Michael Walle <michael@...le.cc>, "Mark
 Brown" <broonie@...nel.org>, Chia-Lin Kao <acelan.kao@...onical.com>, "Md
 Sadre Alam" <quic_mdalam@...cinc.com>, Ezra Buehler
	<ezra.buehler@...qvarnagroup.com>, Sridharan S N <quic_sridsn@...cinc.com>,
	Frieder Schrempf <frieder.schrempf@...tron.de>, Alexey Romanov
	<avromanov@...utedevices.com>
Subject: Re: [PATCH v2 2/5] mtd: spinand: add OTP support

Hello, Miquel. Thank you for the review.
Regarding your question ( https://lore.kernel.org/all/20240717103623.6d6b63be@xps-13/ ):

>> +int spinand_otp_read(struct spinand_device *spinand, loff_t from, size_t len,
>> +		     u8 *buf, size_t *retlen);
>> +
>> +int spinand_otp_write(struct spinand_device *spinand, loff_t from, size_t len,
>> +		      const u8 *buf, size_t *retlen);
>> +
> 
> Why exposing spinand_otp_read and spinand_otp_write ?

For the SPI-NAND chips we have (Micron, ESMT, FORESEE), the command
sequence for reading/writing OTP is the same. I decided to make these
functions global because other chips probably have similar read/write
OTP operations as well.

-- 
Best Regards,
Martin Kurbanov