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From: Guenter Roeck <linux@roeck-us.net>
To: Jerome Brunet <jbrunet@baylibre.com>
Cc: Jean Delvare <jdelvare@suse.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>,
	linux-hwmon@vger.kernel.org, linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org
Subject: Re: [PATCH v4 1/3] hwmon: (pmbus/core) improve handling of write protected regulators
Date: Mon, 2 Dec 2024 22:06:26 -0800	[thread overview]
Message-ID: <0afdcb04-5ada-4bd0-b1e1-c28663f952f0@roeck-us.net> (raw)
In-Reply-To: <20241202-tps25990-v4-1-bb50a99e0a03@baylibre.com>

On Mon, Dec 02, 2024 at 11:28:00AM +0100, Jerome Brunet wrote:
> Writing PMBus protected registers does succeed from the smbus perspective,
> even if the write is ignored by the device and a communication fault is
> raised. This fault will silently be caught and cleared by pmbus irq if one
> has been registered.
> 
> This means that the regulator call may return succeed although the
> operation was ignored.
> 
> With this change, the operation which are not supported will be properly
> flagged as such and the regulator framework won't even try to execute them.
> 
> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>

Applied.

Thanks,
Guenter

  reply	other threads:[~2024-12-03  6:06 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-12-02 10:27 [PATCH v4 0/3] hwmon: pmbus: add tps25990 efuse support Jerome Brunet
2024-12-02 10:28 ` [PATCH v4 1/3] hwmon: (pmbus/core) improve handling of write protected regulators Jerome Brunet
2024-12-03  6:06   ` Guenter Roeck [this message]
2024-12-02 10:28 ` [PATCH v4 2/3] hwmon: (pmbus/core) add wp module param Jerome Brunet
2024-12-03  6:06   ` Guenter Roeck
2024-12-02 10:28 ` [PATCH v4 3/3] hwmon: (pmbus/tps25990): add initial support Jerome Brunet
2024-12-03  6:11   ` Guenter Roeck
2024-12-05 19:50   ` Kees Bakker

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