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From: Wolfram Sang <wsa@kernel.org>
To: Dmitry Osipenko <digetx@gmail.com>
Cc: Lee Jones <lee.jones@linaro.org>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>,
	Alessandro Zummo <a.zummo@towertech.it>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Laxman Dewangan <ldewangan@nvidia.com>,
	linux-kernel@vger.kernel.org, linux-rtc@vger.kernel.org,
	linux-i2c@vger.kernel.org
Subject: Re: [PATCH v1 3/3] mfd: tps80031: Remove driver
Date: Fri, 22 Oct 2021 10:46:45 +0200	[thread overview]
Message-ID: <YXJ6deXN7vWrSc++@ninjato> (raw)
In-Reply-To: <b8f6dffb-ec7b-c105-51f1-7b761e331a89@gmail.com>

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> It's I2C driver. I'm not sure about auto-probing because something
> should provide information about device to Linux. It's possible to
> detect/scan whether there is device sitting on I2C address, but there is
> no auto-discovery mechanism, AFAIK.

Well, in general, it could be manually instantiated from userspace...

> 
> TPS80031 device will fail to bind to this driver because it explicitly
> requires platform data which should be NULL if device is probed solely
> by I2C ID.

..but I agree in this case. The driver has this code:

        if (!pdata) {
                dev_err(&client->dev, "tps80031 requires platform data\n");
                return -EINVAL;
        }

and git grep shows no user having platform data.

Shouldn't 'drivers/regulator/tps80031-regulator.c' and
'./rtc/rtc-tps80031.c' be removed as well?


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  reply	other threads:[~2021-10-22  8:46 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-21 19:22 [PATCH v1 0/3] Remove TPS80031 driver Dmitry Osipenko
2021-10-21 19:22 ` [PATCH v1 1/3] rtc: tps80031: Remove driver Dmitry Osipenko
2021-10-23 21:55   ` (subset) " Alexandre Belloni
2021-10-21 19:22 ` [PATCH v1 2/3] regulator: " Dmitry Osipenko
2021-10-21 19:22 ` [PATCH v1 3/3] mfd: " Dmitry Osipenko
2021-10-22  8:05   ` Lee Jones
2021-10-22  8:20     ` Dmitry Osipenko
2021-10-22  8:46       ` Wolfram Sang [this message]
2021-10-22  8:50         ` Dmitry Osipenko
2021-10-22  9:54       ` Lee Jones
2021-10-22 10:02   ` Lee Jones
2021-10-23 19:58 ` (subset) [PATCH v1 0/3] Remove TPS80031 driver Mark Brown

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