linux-kernel - Re: [PATCH v2 2/2] mtd: core: Don't fail mtd_otp_nvmem

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Message-Id: <CZWXNB1U9VWE.G9CWTCUO3ZY3@kernel.org>
Date: Mon, 18 Mar 2024 15:07:13 +0100
From: "Michael Walle" <mwalle@...nel.org>
To: "Aapo Vienamo" <aapo.vienamo@...ux.intel.com>,
 <miquel.raynal@...tlin.com>, <richard@....at>, <vigneshr@...com>,
 <linux-mtd@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Cc: <mika.westerberg@...ux.intel.com>
Subject: Re: [PATCH v2 2/2] mtd: core: Don't fail mtd_otp_nvmem_add() if OTP
 is unsupported

On Wed Mar 13, 2024 at 6:34 PM CET, Aapo Vienamo wrote:
> Handle the case where -EOPNOTSUPP is returned from OTP driver.
>
> This addresses an issue that occurs with the Intel SPI flash controller,
> which has a limited supported opcode set. Whilst the OTP functionality
> is not available due to this restriction, other parts of the MTD
> functionality of the device are intact. This change allows the driver
> to gracefully handle the restriction by allowing the supported
> functionality to remain available instead of failing the probe
> altogether.
>
> Signed-off-by: Aapo Vienamo <aapo.vienamo@...ux.intel.com>
> Reviewed-by: Mika Westerberg <mika.westerberg@...ux.intel.com>

Reviewed-by: Michael Walle <mwalle@...nel.org>

-michael

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