linux-kernel - Re: [PATCH 5.15 72/76] regmap: allow to define reg_update

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Message-ID: <6274f1ce-f2e0-414b-b9a9-bf2840fefd90@sirena.org.uk>
Date: Wed, 13 Mar 2024 16:46:04 +0000
From: Mark Brown <broonie@...nel.org>
To: Sasha Levin <sashal@...nel.org>
Cc: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	Ansuel Smith <ansuelsmth@...il.com>
Subject: Re: [PATCH 5.15 72/76] regmap: allow to define reg_update_bits for
 no bus configuration

On Wed, Mar 13, 2024 at 12:42:19PM -0400, Sasha Levin wrote:
> From: Ansuel Smith <ansuelsmth@...il.com>
> 
> [ Upstream commit 02d6fdecb9c38de19065f6bed8d5214556fd061d ]
> 
> Some device requires a special handling for reg_update_bits and can't use
> the normal regmap read write logic. An example is when locking is
> handled by the device and rmw operations requires to do atomic operations.
> Allow to declare a dedicated function in regmap_config for
> reg_update_bits in no bus configuration.

This is fairly clearly new functionality?

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