Received-SPF: pass (google.com: domain of linux-kernel+bounces-102246-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) client-ip=2604:1380:45e3:2400::1;
Date: Wed, 13 Mar 2024 13:14:59 -0400
From: Sasha Levin <sashal@kernel.org>
To: Mark Brown <broonie@kernel.org>
Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org,
	Marek Vasut <marex@denx.de>,
	Jagan Teki <jagan@amarulasolutions.com>,
	Maxime Ripard <maxime@cerno.tech>,
	Robert Foss <robert.foss@linaro.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	Thomas Zimmermann <tzimmermann@suse.de>
Subject: Re: [PATCH 5.15 73/76] regmap: Add bulk read/write callbacks into
 regmap_config
Message-ID: <ZfHfEyb6XKrE2MBE@sashalap>
References: <20240313164223.615640-1-sashal@kernel.org>
 <20240313164223.615640-74-sashal@kernel.org>
 <8bcd85fb-401f-4a3b-b10e-633a0478c0da@sirena.org.uk>
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Disposition: inline
In-Reply-To: <8bcd85fb-401f-4a3b-b10e-633a0478c0da@sirena.org.uk>

On Wed, Mar 13, 2024 at 04:46:56PM +0000, Mark Brown wrote:
>On Wed, Mar 13, 2024 at 12:42:20PM -0400, Sasha Levin wrote:
>> From: Marek Vasut <marex@denx.de>
>>
>> [ Upstream commit d77e745613680c54708470402e2b623dcd769681 ]
>>
>> Currently the regmap_config structure only allows the user to implement
>> single element register read/write using .reg_read/.reg_write callbacks.
>> The regmap_bus already implements bulk counterparts of both, and is being
>> misused as a workaround for the missing bulk read/write callbacks in
>> regmap_config by a couple of drivers. To stop this misuse, add the bulk
>> read/write callbacks to regmap_config and call them from the regmap core
>> code.
>
>This fairly clearly new functionality.

It is, but its needed for 3f42b142ea11 ("serial: max310x: fix IO data
corruption in batched operations") which uses this new functionality.

-- 
Thanks,
Sasha