linux-kernel - NVMEM real world need for write-only entries

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Message-ID: <PSXP216MB043878A11EAFC967500D30DE80270@PSXP216MB0438.KORP216.PROD.OUTLOOK.COM>
Date:   Mon, 30 Dec 2019 13:51:00 +0000
From:   Nicholas Johnson <nicholas.johnson-opensource@...look.com.au>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>
Subject: NVMEM real world need for write-only entries

Hi Srinivas,

I have been talking to Mika Westerberg who maintains the Linux 
Thunderbolt driver and it has become apparent that the ability to create 
NVMEM entries with write-only would be of great usefulness for the Linux 
Thunderbolt driver.

Upon visual inspection, it does not appear that it is possible to create 
a NVMEM as write-only, as of this time.

Is this something you would be interested in / willing looking into with 
us?

I could possibly offer a solution / proof of concept patch to add 
write-only support, but without prior discussion, any such efforts would 
likely go astray.

Thank you!

Kind regards,
Nicholas Johnson